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3com 2250-SFP PLus

1. 2 Gently slide the transceiver into the SFP slot until it clicks into place AN CAUTION SFP transceivers are keyed and can be properly inserted only one way If the transceiver does not click when you insert it remove it turn it over and reinsert it 3 Remove the plastic protective cover if fitted 4 Connect the fiber cable 5 Attach a male duplex LC connector on the network cable into the duplex LC connector on the transceiver Performing Spot Checks 23 6 Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection 7 Check the Module Active LEDs on the front of the Switch to ensure that the SFP transceiver is operating correctly Removing an SFP Transceiver Removing an SFP transceiver does not require powering off the Switch To remove an SFP transceiver 1 Disconnect the cable from the transceiver 2 Move the wire release lever downwards until it is pointing toward you 3 Pull the wire release lever toward you to release the catch mechanism The SFP transceiver should slide out easily Performing Spot Checks At frequent intervals you should visually check the Switch Regular checks can give you an early warning of a possible failure any problems can then be attended to when there will be least effect on users 3Com recommends periodically checking the items listed in Table 9 24 INSTALLING THE SWITCH Table 9 Items to Check Cabling Check that a
2. E EALA Selected Ports Bl verver ortne moines aggregation Deselected Ports LJ neta member orany aggregation mj This port is a member of an existing aggregation MEE To modify a link aggregation group 1 Select the aggregation group to modify then click Select 2 Select the ports to add to and or remove from the goup 3 Click Apply Summary Create Configuring Port Settings 65 Remove Use the Remove tab to delete a link aggregation group Figure 60 Link Aggregation Remove Screen Modify Remove Select Aggregation s to Remove Member Ports Group ID Remove Cancel To remove a link aggregation group From the link aggregation group list select the aggregated group to remove Click Remove 66 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE Statistics The Switch allows you to display detailed statistics of one several or all ports Figure 61 Port Statistics Screen Select Port s Refresh Interval 10 600 Seconds 10 Select All Select None Apply Clear All Counters Ethernet 11 Iftable Stats Octets Input 361336 Octets Output 4217210 Unicast Input 3175 Unicast Output 3982 Discard Output 0 Error Input 0 Error Output 0 QLen Output 0 Extended Iftable S
3. Information Translation for this would be Informa es de Seguran a e Regulat rias da Famila de Switches 3Com incluido no produto Este manual pode ser encontrado no CD ROM incluido com o seu switch ou no site da 3Com www 3Com com Viktig s kerhets information V nligen h nf r till s kerhets informationen som ar inkluderad med denna produkt i 3Com Switch Family Safety and Regulatory Information manualen Du kan hitta denna manual pa den CD ROM som f ljde med din switch Du kan ven ladda ner denna fran 3Com hemsidan www 3Com com Importantes informations de securit Veuillez consulter les informations de securit qui se trouvent dans le manuel suivant 3Com Switch Family Safety and Regulatory Information celui ci est inclu avec le produit Vous pouvez trouver ce manuel sur le CD ROM qui a t livr avec votre switch Vous pouvez aussi le t l charger sur le site Web de 3Com www 3Com com Wichtige Sicherheits Informationen Bitte wenden Sie sich an die Sicherheitsinformationen in der 3Com Switch Family Safety and Regulatory Information Anleitung die mit diesem Produkt 18 INSTALLING THE SWITCH vorhanden ist Sie k nnen diese Sicherheitsanleitung auf der CD ROM finden die im Lieferumfang Ihres Netzwerkschalters enthalten ist Sie k nnen die Anleitungsdatei auch von der 3Com Webseite www 3Com com herunterladen Importante Avviso di Sicurezza Vi preghiamo di leggere attentamente e seguire le istruzioni
4. 4 18 None Disabled No Using the Web interface you can configure the Voice 18 None Disabled No 20 None Disabled No over Internet Protocol VoIP settings 217 Nene Disabled N i 2 E 22 None Disabled No The QoS VolP Traffic Setting menu includes six tabs 23 None Disabled No 24 None Disabled No Summary 25 None Disabled No 26 None Disabled No Setup Use the Setup tab to configure the global settings for the Voice VLAN The following options are available m Voice VLAN Status Enable or disable Voice VLAN for the switch m Voice VLAN ID Input the Voice VLAN ID for the switch m Voice VLAN Aging Time Input the aging time You must first create a VLAN from the VLAN Setup page D before you can assign and configure a Voice VLAN Figure 47 QoS VolP Setup Screen GE sew Port Setup Port Detail OUlSummary OUI Modify Voice VLAN Global Settings Voice VLAN Status Disabled v Voice VLAN ID Voice VLAN Aging Time 1 Day 0 Hour 0 Min 5 Min 30 Day Apply Cancel Port Setup Use the Port Setup tab to configure the port or trunk setting for Voice VLAN The following options are available m Voice VLAN Port Mode Select between None Manual or Auto 1 2 3 Summary Configuring VLANs 57 m Voice VLAN Port Security Enable or disable the security To configure the Voice VLAN settings for ports Select Voice VLAN Mode and S
5. From the Help menu select Contents Click OK Please include the following information when contacting us m Document title Document part number on the title page m Page number if appropriate Example wm Baseline Switch 2426 PWR Plus User Guide m Part number 10016622 m Page 25 Please note that we can only respond to comments and questions about 3Com product documentation at this e mail address Questions related to technical support or sales should be directed in the first instance to your network supplier Documentation Comments Your suggestions are very important to us They will help make our documentation more useful to you Please e mail comments about this document to 3Com at pddtechpubs_comments 3Com com Product Registration You can now register your Baseline Switch on the 3Com Web site to receive up to date information on your product http esupport 3Com com 1 INTRODUCING THE BASELINE SWITCH This chapter provides an overview of the features and capabilities of the 3Com Baseline Switch 2226 SFP Plus 3Com Baseline Switch 2426 PWR Plus and 3Com Baseline Switch 2250 SFP Plus It also identifies the contents of the Switch package and helps you get to know the physical features of the device Overview of the Baseline Switch The 3Com Baseline Switch 2226 SFP Plus is a versatile easy to use configurable switch The 3Com Baseline Switch 2426 PWR Plus is a versatile
6. Initialize The Initialize command resets the device configuration to factory defaults retaining the current IP configuration Syntax Initialize Default Configuration This command has no default configuration User Guidelines The system prompts for confirmation of the request If no response is entered within 15 seconds timeout occurs and the command is not executed Example The following example resets the Switch to factory defaults Select menu option initialize WARNING This command initializes the system to factory defaults excluding Management IP configuration and causes a reset Do you wish to continue yes no no yes Saving configuration Saved config to all units System rebooting CLI Commands 97 Reboot The Reboot command simulates a power cycle of the device Syntax reboot Default Configuration This command has no default configuration User Guidelines There are no user guidelines for this command Example Select menu option reboot Are you sure you want to reset the system yes no no yes Saving configuration Saved config to all units System rebooting 98 APPENDIX D 3COM CLI REFERENCE GUIDE Logout The Logout command terminates the CLI session Syntax logout Default Configuration This command has no default configuration User Guidelines There are no user guidelines for this c
7. Zoll Baugruppentrager ACHTUNG Entfernen Sie alle Kabel bevor Sie fortsetzen Entfernen Sie die selbstklebenden Polster F Be von der Unterseite der Baugruppe falls diese bereits angebracht sind Platzieren Sie die Baugruppe aufrecht auf einer harten ebenen Fl che mit der Vorderseite Ihnen entgegen Ordnen Sie eine der Halterungen ber den L chern an der Seite der Baugruppe an Stecken Sie zwei der mitgelieferten Schrauben in die L cher und drehen Sie diese mit einem geeigneten Schraubendreher fest Wiederholen Sie die letzten zwei Schritte auf der anderen Seite der Baugruppe F hren Sie die Baugruppe in den 19 Zoll Baugruppentr ger ein und sichern Sie die Baugruppe mit geeigneten Schrauben Nicht im Lieferumfang enthalten SchlieBen Sie alle Kabel wieder an Placing Units On Top of Each Other If the Switch units are free standing up to six units can be placed one on top of the other If you are mixing a variety of Baseline and SuperStack units the smaller units must be positioned at the top If you are placing Switch units one on top of the other you must use the self adhesive rubber pads supplied Apply the pads to the underside of each Switch sticking one in the marked area at each corner Place the Switch units on top of each other ensuring that the pads of the upper unit line up with the recesses of the lower unit Supplying Power to the Switch Power problems can be the cause of se
8. 1 Amp maximum Maximum Power 30 W Consumption Maximum Power Dissipation 102 BTU hr 84 APPENDIX B TECHNICAL INFORMATION 3CBLSF26PWR Related Standards The Baseline Switch 2426 PWR Plus has been designed to the following standards Functional MAC Address Safety EMC Emissions Immunity Environmental Operating Temperature Storage Temperature Humidity Standard IEEE 802 3 Ethernet IEEE 802 3u Fast Ethernet IEEE 802 3ab and IEEE 802 3z Gigabit Ethernet IEEE 802 3x Flow Control IEEE 802 1D 1993 Bridging IEEE 802 3af Power over Ethernet IEEE 802 3at Power over Ethernet Plus 8192 UL 60950 1 EN 60950 1 CSA 22 2 60950 1 IEC 60950 1 EN 61000 3 2 amp EN 61000 3 3 EN 55022 Class A FCC Part 15 Subpart B Class A ICES 003 Class A VCCI Class A CISPR 22 Class A EN 55024 0 40 C 32 104 F 40 70 C 40 158 F 0 95 non condensing EN 60068 IEC 68 various parts Physical Width Depth Height Weight Mounting Electrical Power Inlet 44 cm 17 3 in 23 8 cm 9 4 in 4 4 cm 1 7 in or 1U 3 2 kg 7 05 Ibs Free standing or 19 inch rack mounted using the mounting kit supplied IEC 320 AC Line Frequency 50 60 Hz Input Voltage Current Rating 100 240 VAC auto range 3 5 Amp maximum Maximum Power 240 W Consumption Maximum Power 182 BTU hr Dissipation Maximum 190 W Pover over Ethernet Budget 3CBLSF50 Related Standards
9. The Baseline Switch 2250 SFP Plus has been designed to the following standards Functional MAC Address Safety EMC Emissions Immunity Environmental Operating Temperature Storage Temperature Humidity Standard SO 8802 3 IEEE 802 3 Ethernet IEEE 802 3u Fast Ethernet IEEE 802 3ab and EEE 802 3z Gigabit Ethernet IEEE 802 3x Flow Control IEEE 802 1D Bridging 92 L 60950 1 EN 60950 1 CSA 22 2 60950 1 IEC 60950 1 N61000 3 2 amp EN 61000 3 3 EN 55022 Class A FCC Part 15 Subpart B Class A CES 003 Class A VCCI Class A CISPR 22 Class A EN 55024 8 U 0 40 C 32 104 F 40 70 C 40 158 F 0 95 non condensing EN 60068 IEC 68 various parts Physical Width Depth Height Weight Mounting Electrical Power Inlet AC Line Frequency Input Voltage Current Rating 3CBLSF50 Related Standards 85 440 mm 17 3 in 215 mm 8 5 in 41 mm 1 6 in or 1U 1 9 kgs 4 19 Ibs Free standing or 19 inch rack mounted using the mounting kit supplied IEC 320 50 60 Hz 100 240 VAC auto range 1 Amp maximum Maximum Power 30 W Consumption Maximum Power Dissipation 184 3 BTU hr 86 APPENDIX B TECHNICAL INFORMATION C PiN Ours Console Cable A Console cable is an 8 conductor RJ45 to DB9 cable One end of the cable has an RJ 45 plug for connecting to the switch s Console port and the other end has a DB 9 socket connector for connecting to t
10. You can remove them from and insert them into any SFP port without having to power down the Switch Approved SFP Transceivers gt The following list of approved SFP transceivers is correct at the time of publication m 3CSFP91 SFP SX m 3CSFP92 SFP LX To access the latest list of approved SFP transceivers for the Switch on the 3Com Web site enter this URL into your Internet browser http www 3Com com 3Com recommends using 3Com SFPs in the Switch If you insert an SFP transceiver that is not supported the Switch will not recognize it Inserting an SFP Transceiver To be recognized as valid the SFP transceiver must have the following characteristics m 1000BASE SX or 1000BASE LX media type m 1000BASE SX SFP transceiver Use this transceiver to connect the Switch directly to a multimode fiber optic cable m 1000BASE LX SFP transceiver Use this transceiver to connect the Switch directly to a single mode fiber optic cable or to multi mode fiber using a conditioned launch cable If the SFP transceiver is faulty it will not operate within the Switch See Troubleshooting on page 75 To activate the SFP port Hold the transceiver so that the fiber connector is toward you and the product label is visible as shown in Figure 5 Ensure the wire release lever is closed in the upright position Figure 5 Inserting an SFP Transceiver label Wire release lever Suitable slot on host Switch
11. Baseline Switch 2226 SFP Plus Baseline Switch 2426 PWR Plus Baseline Switch 2250 SFP Plus Installation and User Guide Installations und Bedienungsanleitung Sq O 3CBLSF26 3CBLSF26PWR 3CBLSF50 www 3Com com m Part No 10016622 Published May 2008 4 b 3Com Corporation m 350 Campus Drive m Marlborough m MA 01752 3064 Copyright 2008 3Com Corporation All rights reserved No part of this documentation may be reproduced in any form or by any means or used to make any derivative work such as translation transformation or adaptation without written permission from 3Com Corporation 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change 3Com Corporation provides this documentation without warranty term or condition of any kind either implied or expressed including but not limited to the implied warranties terms or conditions of merchantability satisfactory quality and fitness for a particular purpose 3Com may make improvements or changes in the product s and or the program s described in this documentation at any time If there is any software on removable media described in this documentation it is furnished under a license agreement included with the product as a separate document in the hard copy documentation or on the removable media in a
12. It is intended for devices that support separate runtime and bootcode Images Syntax Summary Default Configuration This command has no default configuration User Guidelines There are no user guidelines for this command Example The following displays current IP configuration and software versions running on the device Select menu option summary IP Method manual 192 168 1 1 2552255 255 0 192 168 1 254 0 00 00 11 12 26 13 43 IP address Subnet mask Default gateway Runtime version Bootcode version Select menu option ipSetup The ipSetup command allows the user to define an IP address on the device either manually or via a DHCP server Syntax ipSetup Default Configuration No default IP address is defined for interfaces User Guidelines When the IP address is configured manually by the user the address must be in the range 0 0 0 0 through 223 255 255 255 IP Addresses configured beyond the range of 224 0 0 0 are defined as multicast experimental or broadcast addresses If a default gateway is configured manually the IP address and mask are required to be the same as the gateway address and mask CLI Commands 95 Example The following example displays an IP address configured manually Select menu option ipSetup Enter configuration method auto manual auto manual Enter IP Address 0 0 0 0 192 168 1 1 Enter Subnet Mask 255 255 0 0 255 255 2
13. Null Modem Cable 88 PC AT Serial Cable 88 Modem Cable 88 Ethernet Port RJ 45 Pin Assignments 89 3CoM CLI REFERENCE GUIDE Getting Started with the Command Line Interface 91 Console Port 91 Logging on to the CLI 91 Automatic Logout 92 Concurrent CLI Sessions 92 CLI Commands 92 93 Ping 94 Summary 94 ipsetup 95 Upgrade 96 Initialize 97 Reboot 97 Logout 98 Password 98 REGULATORY NOTICES GLOSSARY INDEX ABOUT THIS GUIDE This guide describes how to install your 3Com Switch and perform initial management configurations It covers the following switches Baseline Switch 2226 SFP Plus 3CBLSF26 Baseline Switch 2426 PWR Plus 3CBLSF26PWR Baseline Switch 2250 SFP Plus 3CBLSF50 Unless noted otherwise the features specifications and procedures described hereafter are shared by all the Switch models covered in this guide Device drawings screen captures and command line interface examples are based on the 3CBLSF26PWR model Where features vary significantly between the switches examples are provided for each This guide is intended for use by those responsible for installing and setting up network equipment consequently it assumes a basic working knowledge of LANs Local Area Networks Diese Anleitung ist f r die Benutzung durch Netzwerkadministratoren vorgesehen die f r die Installation und Einstellung von Netzwerkkomponenten verantwortlich sind Erfahrung bei der Arbeit mit LANs Loc
14. odify spanning tree settings for ports VoIP Trafic Setting PoE Port Administration Link Aggregation Statistics Security Radius Client Contains tabs that allow you to m Display a summary of Voice VLAN settings Enable Voice VLANs Configure Voice VLAN port settings Display Voice VLAN port details Display the OUI list Modify the OUI list Contains tabs that allow you to m Display PoE summary m Configure PoE settings Configures the ports Contains tabs that allow you to m Display selected port information for the entire Switch m Display individual port information m Modify the port settings Contains tabs that allow you to m Display link aggregation summary m Create an aggregation group m Modify the port memberships m Remove an aggregation group Display statistics for a selected port Configures security settings Configures Radius Client settings and sets authentication parameters Menu Item Description 802 1X Settings Monitoring Address Table Port Mirroring Cable Diagnostics Help Log Out Buttons Depending on the screen that is currently displayed the Contains tabs that allow you to m Display an authentication summary for all ports m Configure system authentication settings Display Switch monitoring information Displays MAC address table information for ports and VLANs Contains tabs that allow you to m Displays
15. of purchase so it is important to register your product quickly to ensure you get full use of the warranty and other service benefits available to you Warranty and other service benefits are enabled through product registration Register your product at http eSupport 3com com 3Com eSupport Services are based on accounts that you create or have authorization to access First time users must apply for a user name and password that provides access to a number of eSupport features including Product Registration Repair Services and Service Request If you have trouble registering your product please contact 3Com Global Services for assistance are available to manage your installation with minimal disruption to your network Expert assessment and implementation services are offered to fill resource gaps and ensure the success of your networking projects More information on 3Com maintenance and Professional Services is available at www 3com com Contact your authorized 3Com reseller or 3Com for a complete list of the value added services available in your area Purchase Value Added Services To enhance response times or extend warranty benefits contact 3Com or your authorized 3Com reseller Value added services like 3Com Express M and Guardian can include 24x7 telephone technical support software upgrades onsite assistance or advance hardware replacement Experienced engineers Troubleshoot Online You will find su
16. 1000 Mbps core network When an SFP port is in operation the corresponding 1000BASE T port is disabled The 1000 Mbps connections can only operate in full duplex mode Figure 3 3CBLSF50 Front and Rear Panels 1 7 paai aah Front Panel AN The front panel of the Switch contains a series of indicator lights LEDs that help describe the state of various networking and connection operations 1 RJ 45 10 100 Ports WARNING RJ 45 Ports These are shielded RJ 45 data sockets They cannot be used as standard traditional telephone sockets or to connect the unit to a traditional PBX or public telephone network Only connect RJ 45 data connectors network telephony systems or network telephones to these sockets Either shielded or unshielded data cables with shielded or unshielded jacks can be connected to these data sockets AVERTISSEMENT Points d acc s RJ 45 Ceux ci sont prot g s par des prises de donn es Ils ne peuvent pas tre utilis s comme prises de t l phone conventionnelles standard ni pour la connection de l unit un r
17. 128 other bridges to reconfigure the network to reestablish 5 Enabled 100000 Enabled Discarding Auto Point to Point 128 a valid network topology B Enabled 100000 Enabled Discarding Auto Point to Point 128 7 Enabled 100000 Enabled Discarding Auto Point to Point 128 n 8 Enabled 100000 Enabled Discarding Auto Point to Point 128 After all the bridges on the network have determined 8 Enabled 100000 Enabled Discarding Auo Pointo Poin 128 the configuration of their ports each bridge only 10 Enabled 100000 Enabled Discarding Auto Point to Point 128 i 11 Enabled 100000 Enabled Forwarding Auto Point to Point 128 forwards traffic between the Root Port and the ports 12 Enabled 100000 Enabled Discarding Auto Pointto Point 128 that are the Designated Bridge Ports for each network 13 Enabled 100000 Enabled Discarding Auto Point to Point 128 A 14 Enabled 100000 Enabled Discarding Auto Point to Point 128 segment All other ports are blocked which means that 15 Enabled 100000 Enabled Discarding Auto Pointto Point 128 they are prevented from forwarding traffic 16 Enabled 100000 Enabled Discarding Auto Point to Point 128 17 Enabled 100000 Enabled Discarding Auto Point to Point 128 18 Enabled 100000 Enabled Discarding Auto Point to Point 128 Three tabs are available on the Spanning Tree page 19 Enabled 100000 Enabled Discarding Auto Pointto Point 128 20 Enabled 100000 Enabled Discardin
18. If the connected device has autonegotiation dis abled or overridden and is configured as full duplex the Switch will configure the link as half duplex caus ing a mismatch that will reduce network performance when data is transmitting and receiving simultaneously on the same link Ensure that the connected device has either m Autonegotiation enabled or m The ports are configured for half duplex operation All ports appear to show continual activity There may be broadcast storms on the network Remove port connections one at a time waiting a few seconds between each port If the LEDs go off after removing a port connection the device that was con nected to that port is introducing an excessive amount of broadcast frames to the network Some pieces of network equipment operate by sending out broadcast frames regularly Refer to the documentation that accompanies the device for information on disabling the broadcast operation If the Problem Persists 77 If the Problem Persists If the problem persists and the unit still does not oper ate successfully contact your 3Com network supplier with the following information before returning the unit m Product number and serial number printed on a label supplied with the unit m A brief description of the issue 78 CHAPTER 5 TROUBLESHOOTING A OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product Warranty and other service benefits start from the date
19. If you modify any of these settings click Apply to save your changes Figure 56 Port Administration Setup Screen C sunman T oea Port State No Change v Speed No Change Flow Control No Change Duplex No Change v Select ports Select None Selected Ports Porti Note e Setting up large numbers of ports may take some time Enabling Flow Control may affect the switch s ability to meet QoS requirements of real time applications under some rare conditions For more information please refer to the User Guide Speed Duplex for 1000 Mbps Connections You cannot preset the speed to 1000 Mbps To run a port at 1000 Mbps you must enable autonegotiation for the port When autonegotiation is enabled the Switch will automatically connect at 1000 Mbps providing the connected device also supports this speed pb p pb 1000 Mbps connections are always full duplex Half duplex connections are only available for 10 Mbps and 100 Mbps settings CAUTION Before manually setting a port to full duplex verify that the device connected to the port is also manually set to the same speed and duplex setting If connecting link partners are left to autonegotiate for a link manually set on this switch to full duplex they will always negotiate to half duplex resulting in a duplex mismatch This can result in a significant reduction in network performance
20. Switch 2226 Plus System Location System Contact Serial Number Product 3C Number 3CBLSF26PWR MAC Address 12 12 34 34 10 00 Software Version 0 0 0 2 Bootrom Versionr 12 14 4 9 iit Uptime 0 days 4 hours 27 minutes and 42 78 seconds Hardware Version If you request for technical assistance from 3Com Support you may be asked to print out the information on this screen Polling Interval Enter the interval in seconds you would like the Switch to refresh Range 10 to 180 seconds 0 to disable polling Figure 16 Polling Interval Deviceview Polling Interval f Color Key E Please enter a number between 10 and 180 seconds for polling interval or enter 0 to disable polling ooo To set the polling interval 1 Click the Device Summary menu then click Polling Interval tab 2 Enter a number between 10 to 180 seconds for the polling interval Enter a O to disable polling Administration Settings 37 Color Key m System Name Description of the color coding m System Time m SNMP Figure 17 Color Key rons RE Modifying the IP Address Settings RIAS SFP eanga f i To enable devices on the network to communicate with White Unconnected No link detected the Switch you need to assign an IP address to it C E TE MEE era either by DHCP or by assigning a static IP address ry E Green Maximum speed 10 100 1000M RJ45 or RJ45 SFP Link detected To enable devices on the network to communica
21. When you contact 3Com for assistance please have the following information ready m Product model name part number and serial number m Proof of purchase if you have not pre registered your product m A list of system hardware and software including revision level Diagnostic error messages m Details about recent configuration changes if applicable To send a product directly to 3Com for repair you must first obtain a return authorization number RMA Products sent to 3Com without authorization numbers clearly marked on the outside of the package will be returned to the sender unopened at the sender s expense If your product is registered and under warranty you can obtain an RMA number online at http eSupport 3com com First time users will need to apply for a user name and password Contact Us 3Com offers telephone e mail and Internet access to technical support and repair services To access these services for your region use the appropriate telephone number URL or e mail address from the list below Telephone numbers are correct at the time of publication Find a current directory of support telephone numbers posted on the 3Com Web site at http csoweb4 3com com contactus Country Telephone Number Contact Us 81 Asia Pacific Rim Telephone Technical Support and Repair Australia 1800 075 316 Hong Kong 2907 0456 India 000 800 440 1193 Indonesia 001 803 852 9825 Japan 03 3507 59
22. a network Equipment commonly managed with SNMP includes switches routers and host computers SNMP is typically used to configure these devices for proper operation in a network environment as well as to monitor them to evaluate performance or detect potential problems Click Administration then SNMP on the menu A screen appears with three tabs m Setup m SNMP Add m SNMP Remove Setup Enable or disable the SNMP Agent Status Figure 28 SNMP Setup Screen Setup SNMP Add SNMP Remove SNMP Agent Status Enabled v 44 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE SNMP Add This page allows you to create community strings for management access Figure 29 SNMP Add Screen EE ces SNMP Remove Community String Standard private UserDefined Access Level Read Only v Apply Community String Access Level public ReadOnly private Read rite SNMP Trap IP Address i Community String public v Version 1 Apply IP Address Community String Version none SNMP Remove This page allows you to remove community strings Figure 30 SNMP Remove Screen SLM senes Remove Community String Community String Access Level public ReadOnly private ReadWrite Remove SNMP Trap IP Address Community String Version none E Configuring VLANs A virtual LAN VLAN is a co
23. appears in the main part of the interface Some menu items will give you sub menu tabs to choose from Figure 9 3CBLSF26 Switch Screen Layout Sub Menu Tabs no Baseline Switch 2226 Plus V7 Ves pede Summary Device View 3com Device View Polling Interval Colorkey Device Summary Save Configuration Administration v Device U Port p Security Monitoring Poll Now Device Summary information Product Description 3Com Baseline Switch 2426 PWR Plus System Name Baseline Switch 2226 Plus Product 3C Number 3CBLSF26PWR MAC Address 00 00 12 12 43 71 Software Version 0 00 2 Bootrom Version 12 28 8 28 Unit Uptime 0 days 0 hours 3 minutes and 38 43 seconds Hardware Version Menu System Information Figure 10 3CBLSF26PWR Switch Screen Layout Sub Menu Tabs Ro Baseline Switch 2226 Plus Ne neice Summary Device View 3com Device View Polling Interval Colorkey Device Summary Save Configuration mme Administration Device Port Security Monitoring ye Poll Now Device Summary information Product Description 3Com Baseline Switch 2426 PWR Plus System Name Baseline Switch 2226 Plus System Location System Contact Serial Number Product 3C Number 3CBLSF26PWR MAC Address 12 12 34
24. copy all traffic effectively during periods of high traffic CAUTION The monitor port should have a higher Two tabs are available on the Port Mirroring page m Setup m Remove Setup Use the Setup tab to create a port mirror session Figure 67 Port Mirroring Setup Screen C seu Select port type Mirror In Eil Monitor O oO Mor Select port EEE PAAA O Not available for selection Monitor Mirror In Mirror Out 13 15 Monitoring 71 To set up port mirroring Connect a network analyzer to a port Access the Web interface Click Monitoring then Port Mirroring on the menu The Port Mirroring Setup Screen appears Click Monitor as the port type then select the port number to which you connected the network analyzer Traffic to or from the selected mirrored port will be forwarded to this port Click Mirror as the port type then select the port number that you want to monitor Traffic to or from this port will be forwarded to the monitor port Select Mirror In to monitor a port s incoming traffic or Mirror Out to monitor a port s outgoing traffic Click Apply Remove Use the Remove tab to delete a port mirroring session Figure 68 Port Mirroring Remove Screen Mirror In Mirror Out 15 Remove Cancel 72 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE To remove a port mirror session 1 From the port mirror ses
25. easy to use configurable Power over Ethernet PoE Switch The 3Com Baseline Switch 2250 SFP Plus is a versatile easy to use configurable switch Each Switch is ideal for users who want the high speed performance of 10 100 switching with the added functionality of Gigabit copper and fiber links but do not need sophisticated management capabilities The Switch is shipped ready for use No configuration is necessary Features and Capabilities The Switch has 24 or 48 shielded RJ 45 10 100 Mbps auto negotiating ports and 2 Gigabit combo ports comprised of a RJ 45 port and a Small Form Factor Pluggable SFP transceiver slot on the front panel for easy flexible connection to fiber based Gigabit media A console port is also provided on the front panel to enable out of band configuration Autosensing of MDI MDIX Connections All ports on the Switch can autosense both medium dependent interface MDI and medium dependent interface crossover MDIX connections This allows you to connect network devices to each port using either a normal straight through TP twisted pair cable or a crossover TP cable Any port can therefore be used to connect to another switch port server or workstation without additional configuration Autonegotiating 10 100 Mbps Ports Each 10 100 Mbps port automatically determines the speed and duplex mode of the connected equipment and provides a suitable switched connection The 10 INTRODUCIN
26. emea 3com com support email html You can also obtain non urgent support in this region at these email addresses Technical support and general requests customer support83com com Return material authorization warranty repairG3com com Contract requests emea contractQ3com com 82 APPENDIX A OBTAINING SUPPORT FOR YOUR PRODUCT Country Telephone Number Latin America Telephone Technical Support and Repair From the Caribbean Central and South America call Antigua 800 988 2112 Argentina 0 810 444 3COM Aruba 800 998 2112 Bahamas 800 998 2112 Barbados 800 998 2112 Belize 52 5 201 0010 Bermuda 800 998 2112 Bonaire 800 998 2112 Brazil 0800 13 3COM Cayman 800 998 2112 Chile AT amp T 800 998 2112 Colombia AT amp T 800 998 2112 Costa Rica AT amp T 800 998 2112 Curacao 800 998 2112 Ecuador AT amp T 800 998 2112 Dominican Republic AT amp T 800 998 2112 Guatemala AT amp T 800 998 2112 Haiti 57 1 657 0888 Honduras AT amp T 800 998 2112 Jamaica 1 800 998 2112 Martinique 571 657 0888 Mexico 01 800 849CARE Nicaragua AT amp T 800 998 2112 Panama AT amp T 800 998 2112 Paraguay 54 11 4894 1888 Peru AT amp T 800 998 2112 Puerto Rico 1 800 998 2112 Salvador AT amp T 800 998 2112 Trinidad and Tobago 1 800 998 2112 Uruguay AT amp T 800 998 2112 Venezuela AT amp T 800 998 2112 Virgin Islands 57 1 657 0888 Country Telephone Number You can also obtain support in this region using the fol
27. here is a problem m Check that the attached device is powered on m Check that the cable is the correct type is not faulty and is inserted correctly If these checks do not identify the cause of the problem it may be that the unit or the device connected to the port is faulty Contact your supplier for further advice 1000BASE T SFP Duplex Status LEDs SFP Duplex Meaning Yellow Off The link is operating at full duplex The link is operating at half duplex or no link is established 1000BASE T only operates in full duplex mode 10 100BASE TX can operate in half or full duplex mode SFP Mode Table5 SFP Link Activity Status LEDs Link Activity Meaning Green The link is operating at 1000 Mbps Flashing Green Packets are being received or transmitted on the port at 1000 Mbps Off The link has not been established Either nothing is connected to the port or there is a problem m Check that the attached device is powered on m Check that the SFP module is inserted correctly m Check that the fiber cable is the correct type is not faulty and is inserted correctly m Ensure that the transmit TX and receive RX fiber cables are not swapped TX on the remote device must be connected to RX on the local device likewise RX on the remote device must be connected to TX on the local device If these checks do not identify the cause of the problem it may be that the unit or t
28. indicate nel manuale di sicurezza 3Com Switch Family Safety and Regulatory Information che troverete incluso a questo prodotto Pu trovare il suddetto manuale nel CD ROM allegato al Vostro Switch Potete anche scaricarlo dal nostro sito www 3Com com Information importante de seguridad Le rogamos lea y siga atentamente las instrucciones indicadas en el manual de seguridad del 3Com Switch Family Safety and Regulatory Information incluido en este producto Puede encontrar el manual en el CD ROM adjunto a su switch Alternativamente lo puede bajar de la web de 3Com www 3Com com Istotne informacje dot bezpieczeristwa Informacje dotyczace bezpieczenstwa sa umieszczone w Instrukcji obstugi 3Com Switch Family kt ra jest do czona do tego produktu Wraz z prze cznikiem znajduje sie instrukcja na p ycie CD ROM Istnieje tak e mo liwo pobrania instrukcji bezpo rednio ze strony internetowej www 3Com com Positioning the Switch The Switch is suitable for use in an office environment where it can be free standing or mounted in a standard 19 inch equipment rack Alternatively the Switch can be rack mounted in a wiring closet or equipment room A mounting kit containing two mounting brackets and four screws is supplied with the Switch When deciding where to position the Switch ensure that m t is accessible and cables can be connected easily m Cabling is away from sources of electrical noise These inclu
29. seau Physical Features 11 t l phonique central priv ou public Raccorder seulement connecteurs de donn es RJ 45 syst mes de r seaux de t l phonie ou t l phones de r seaux ces prises I est possible de raccorder des c bles prot g s ou non prot g s avec des jacks prot g s ou non prot g s ces prises de donn es WARNHINWEIS RJ 45 Porte Diese Porte sind gesch tzte Datensteckdosen Sie d rfen weder wie normale traditionelle Telefonsteckdosen noch f r die Verbindung der Einheit mit einem traditionellem privatem oder ffentlichem Telefonnetzwerk gebraucht werden Nur RJ 45 DatenanscluBe Telefonnetzsysteme or Netztelefone an diese Steckdosen anschlieBen Entweder gesch tzte oder ungesch tzte Buchsen d rfen an diese Datensteckdosen angeschlossen werden The Switch has 24 or 48 10 100 Mbps auto negotiating ports Each port supports automatic MDI MDI X detection and can be connected to either a 10BASE T or 100BASE TX device For each port the speed and duplex mode half duplex or full duplex for 10BASE T and 100BASE TX are automatically determined by the capabilities of the connected device The 3CBLSF26PWR Switch also supports IEEE 802 3af 2003 standard 802 3af and pre standard P802 3at DTE Power via MDI Enhancements PoE Each port can detect connected 802 3af at compliant 12 INTRODUCING THE BASELINE SWITCH network devices such as IP phones or wireless access points and automaticall
30. the link type m Path Cost The path cost is used to determine the best path between devices The path cost method is used to determine the range of values that can be assigned to each interface m Port Priority Used in selecting the root device root port and designated port The device with the highest priority becomes the STA root device However if all devices have the same priority the device with the lowest MAC address will then become the root device If you modify any of these settings click Apply to save your changes Figure 42 Spanning Tree Port Setup Screen Status No Change v LinkType No Change O Path Cost 1 200000000 0 Auto Edged Port No Change C Port Priority 0 240 in steps of 16 ET rs s qn Selecta J __Apply Cancer IGMP Snooping amp Query This switch uses IGMP Internet Group Management Protocol to query for any attached hosts that want to receive a specific multicast service It identifies the ports containing hosts requesting to join the service and sends data out to those ports only It then propagates the service request up to any neighboring multicast switch router to ensure that it will continue to receive the multicast service This procedure is called multicast filtering The purpose of IP multicast filtering is to optimize a switched network s performance so multicast packets will only be forwarded
31. will be stripped of the VLAN tag and forwarded as untagged However if the port is a tagged member the egress frame is forwarded as tagged Sample VLAN Configurations To illustrate how you can segment network devices that are connected to the Switch the following sample configurations are provided 50 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE Setting Up Two VLANs on the Same Switch Figure 38 illustrates how you can set up a simple VLAN on the Switch using desktop connections Figure 38 Desktop VLAN Configuration Endstations Endstations in VLAN 1 in VLAN 2 Baseline Switch a re Se a Server Server in VLAN1 in VLAN 2 If you want to add ports 1 3 and 26 to VLAN2 as shown in Figure 38 so that the ports on the default VLAN1 and the ports on VLAN2 cannot communicate with each other do the following Create a new VLAN and set the VLAN ID to 2 Refer to Setup for instructions VLAN1 is the default VLAN and already exists Set ports 1 3 and 26 to associate with the Untagged membership in VLAN2 3 Click Apply Ports 1 3 and 26 now belong to VLAN2 and will not communicate with any other ports unless you add other ports to the VLAN or change the port configuration Setting Up VLAN Across Two Switches This example explains how you can set up a VLAN across two Switches using Tagged ports This enables ports that are members of th
32. 1 Port22 N untagged member of VLAN 1 the management VLAN Port23 Portz Port25 Portas If you choose to connect all ports to VLANs other than Il VLAN 1 you will no longer be able to access the Web Apply Cancel Setup Select a Port Modify VLAN Enter a set of VLANs or select all VLANs to configure then click Select From the drop down menu select a VLAN to modify Select a membership use Available options for each port include only one option can be associated with a single port m Tagged m Untagged m Not a Member Select ports to associate with the membership then click Apply Modify Port Use the Modify Port screen to modify the VLAN membership of a port Figure 33 Modify Port Screen ModityPort MSD Remove Port Detail VLAN Detall Select membership type Untagged Tagged O NotAMember Not available for selection Select the VLANs to apply this change to AlL VLANS Example 1 3 5 10 Cancel Configuring VLANs 47 1 Select a membership use Available options for each port include only one option can be associated with a single port m Nota member m Tagged m Untagged Select a port to associate with the membership Enter a VLAN to apply these changes to then click Apply Rename Use the Rename screen to change the name of a VLAN Figure 34 Rename Scree
33. 34 10 08 Software Version D 0 0 2 Bootrom Version 12 14 48 Unit Uptime 0 days Ohours 9 minutes and 58 9 seconds Hardware Version Menu System Information Figure 11 3CBLSF50 Switch Screen Layout LWP Sub Menu Tabs Qo Baseline Switch 2250 SFP 3 C 0 Device Summary Device View Device Summary Save Configuration Polling Interval Color Key AIEEE rnm eere Cea TE Administration b Device Port 5 Security A Monitoring FEX EE E EDI ESTEE ISI EI EE E EDEN ER TEDIE E EC Poll Now Device Summary Information Product Description Baseline Switch 2250 SFP Plus System Name Baseline Switch 2250 SFP Plus System Location System Contact Serial Number Product 3C Number 3CBLSF 50 MAC Address 00 1 2 33 33 Software Version 0 0 11 Bootcode Versiont 0 0 0 10 Unit Uptime 0 days 0 hours 21 minutes and 30 54 second i Hardware Version Help ElLog jut System Information Navigating the Web Interface 29 Table 1 lists the available items on the menu Table 1 Available Menu Items Menu Item Description Contains tabs that allow you to m Provide a summary of the Switch s basic settings and versions of current components m Set the polling interval in seconds m Display the description for each color coded port Device Summary Save Configuration Saves the Switch s configuration Adm
34. 5 to 9 pin PC AT Serial Port Cable connector RJ 45 female Cable connector 9 pin female Screen Shell Shell Screen nly required if screen DTR 4 e e e 1 DCD Required for handshake TxD 3 e e RxD Always required RxD 2 e 3 TxD CTS 8 e e 4 DTR required for handshake Ground 5 e e5 Ground always required DSR 6 e 6 DSR RTS 7 e e7 RTS required for handshake DCD 1 e 8 CTS Ethernet Port RJ 45 Pin Assignments Table 2 RJ 45 MDI Pin Assignments Pin Number 10 100 1000 Ports configured as MDI 1 Transmit Data Bidirectional Data A 2 Transmit Data Bidirectional Data A 3 Receive Data Bidirectional Data B 4 Not assigned Bidirectional Data C 5 Not assigned Bidirectional Data C 6 Receive Data Bidirectional Data B 7 Not assigned Bidirectional Data D 8 Not assigned Bidirectional Data D Ethernet Port RJ 45 Pin Assignments 89 Table 3 RJ 45 MDIX Pin Assignments Pin Number 10 100 1000 Ports configured as MDIX 1 Receive Data Bidirectional Data B 2 Receive Data Bidirectional Data B 3 Transmit Data Bidirectional Data A 4 Not assigned Bidirectional Data D 5 Not assigned Bidirectional Data D 6 Transmit Data Bidirectional Data A 7 Not assigned Bidirectional Data C 8 Not assigned Bidirectional Data C 90 APPENDIX C PIN OUTS D 3Com CLI REFERENCE GUIDE This section describes using the Command Line Interface CLI to manage the d
35. 55 0 Enter Default Gateway 192 168 1 254 Ts Select management VLAN ID 1 1 This operation may take up to 30 seconds Select menu option The following example displays an IP address obtained via a DHCP server Select menu option ipSetup Enter configuration method auto manual manual auto Select management VLAN ID 1 1 This operation may take up to 30 seconds Select menu option 96 APPENDIX D 3COM CLI REFERENCE GUIDE Upgrade Example The Upgrade command starts a system download and The following example upgrades the system software on thereby allowing a system upgrade the Switch using a TFTP server Syntax Select menu option upgrade TFTP Server Address 192 168 1 254 192 168 1 9 upgrade File Name runtime2 bix bfs00_00_00_11 bin f t Et de h Default Configuration CH MM rd This command has no default configuration User Guidelines The Upgrade command prompts the user for required information The TFTP server IP address and the software image file name on the server must be specified During the upgrade process a series of dots appear Upgrade successful representing the upgrade process in the CLI interface lect ti When the upgrade process is completed the command SOLACE Monu RELON prompt reappears The Dual Software Image feature is supported therefore the next boot after the Upgrade command will always use the newly downloaded image
36. 84 Malaysia 1800 812 612 New Zealand 0800 450 454 Philippines 1800 144 10220 or 029003078 PR of China 800 810 0504 Singapore 800 448 1433 South Korea 080 698 0880 Taiwan 00801 444 318 Thailand 001 800 441 2152 Pakistan Call the U S direct by dialing 00 800 01001 then dialing 800 763 6780 Sri Lanka Call the U S direct by dialing 02 430 430 then dialing 800 763 6780 Vietnam Call the U S direct by dialing 1 201 0288 then dialing 800 763 6780 You can also obtain non urgent support in this region at this email address apr technical support 3com com Or request a return material authorization number RMA by FAX using this number 61 2 9937 5048 or send an email at this email address ap rma request 3com com Europe Middle East and Africa Telephone Technical Support and Repair From anywhere in these 44 1442 435529 regions not listed below call Country Telephone Number From the following countries call the appropriate number Austria 0800 297 468 Belgium 0800 71429 Denmark 800 17309 Finland 0800 113153 France 0800 917959 Germany 0800 182 1502 Hungary 06800 12813 reland 1 800 553 117 srael 180 945 3794 taly 800 879489 Luxembourg 800 23625 Netherlands 0800 0227788 Norway 800 11376 Poland 00800 4411 357 Portugal 800 831416 South Africa 0800 995 014 Spain 900 938 919 Sweden 020 795 482 Switzerland 0800 553 072 0800 096 3266 You can also obtain support in this region using this URL http
37. C address and default IP address of the Switch For example if the MAC address is 08004E000102 the IP address would be 169 254 1 2 The Switch also assigns the subnet mask 255 255 0 0 default class B mask to itself To determine the exact IP address that the Switch Switch either by using DHCP or a static IP address to ensure successful communication between the Switch and other network devices 3Com recommends assigning an IP address to the IP Setup Use these settings to change the IP addressing mode and the IP address of the Switch Be default the IP address configuration method will be DHCP In this mode the Switch will obtain an IP address from a DHCP server The IP address subnet mask and default gateway details that have been allocated to the Switch can be seen but they cannot be altered greyed out To assign a manual IP address select the manual button and enter your specific details then click on Apply necessary to use this new address in the web browser in If you change the IP adaress of the Switch it will be order to access the Switch at it s new IP address Figure 18 IP Setup Screen Configuration Manual User enters IP configuration Method O DHCP IP configuration obtained by DHCP Server IP Address 192 168 1 1 Subnet Mask 255 255 255 0 Default Gateway 192 168 1 254 Appy J Cancel Backup Configuration To save the Switch configuration settings 1 Click A
38. Ctrl C within 5 seconds to get into FailSafe mode Do as instructed and wait for the remainder of the switch initialization to complete You will then be presented with 4 options m Initialize m Password m Reboot m Upgrade Selecting nitialize will delete all the stored configura tion information including IP address modes and pass words Selecting Password will delete all stored passwords The default user name will now be admin with no pass word Selecting Reboot will restart the Switch without making any changes Selecting Upgrade will initiate a firmware download via TFTP Follow the instructions provided with your TFTP server to upgrade the firmware using this interface CAUTION Resetting the Switch to factory defaults erases all your settings You will need to reconfigure the Switch after you reset it CHAPTER 5 TROUBLESHOOTING The Switch will perform automatic IP configuration after you reset it See Automatic IP Configuration on page 37 for more information Forgotten Static IP Address If you have forgotten the static IP address that you have assigned to the Switch and you need to access the Web interface you can use the console interface Use the summary command once you logged in to display the IP settings of the switch Alternately use the 3Com Detect application page 31 to locate the Switch on your net work Solving LED Issues This section lists some issues that are related
39. E WEB INTERFACE Configuration Overview 35 Device Summary Information 35 Administration Settings 37 Modifying the IP Address Settings 37 Automatic IP Configuration IP Setup 38 Backup Configuratio n Restore Configuration Firmware Upgrade Reset 40 System Access 40 System Name 43 System Time 43 SNMP 43 39 Configuring VLANs 44 VLAN 45 Forwarding Tagged Untagged Frames 38 39 37 Sample VLAN Configurations Spanning Tree 51 IGMP Snooping amp Query Broadcast Storm 55 QoS VoIP Traffic Sett ings PoE 3CBLSF26 PWR only Configuring Port Settings Administration 60 Link Aggregation Statistics 66 Security 66 RADIUS Client 66 802 1X Settings 6 Monitoring 69 Address Table 69 Port Mirroring 70 Cable Diagnostics 63 7 72 60 54 56 59 49 49 TROUBLESHOOTING Resetting to Factory Defaults 75 Forgotten Static IP Address 76 Solving LED Issues 76 If the Problem Persists 77 OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product 79 Purchase Value Added Services 79 Troubleshoot Online 79 Access Software Downloads 79 Telephone Technical Support and Repair 80 ContactUs 80 TECHNICAL INFORMATION 3CBLSF26 Related Standards 83 Environmental 83 Physical 83 Electrical 83 3CBLSF26PWR Related Standards 84 Environmental 84 Physical 84 Electrical 84 3CBLSF50 Related Standards 85 Environmental 85 Physical 85 Electrical 85 PIN OuTS Console Cable 87
40. EE 103 ETF 103 P address auto configuration 37 modifying 37 P defined 103 SP defined 103 B bandwidth 101 Baseline Switch 2848 SFP 83 84 C category 3 cables 102 category 5 cables 102 category 5e cables 102 category 6 cables 102 client 102 configuration overview 35 conventions text About This Guide 8 F Fast Ethernet 102 FCC statement 99 Feedback about this User Guide 8 front panel diagram 11 full duplex 103 L LAN defined 103 LED issues 76 ink aggregation 63 ocal area network 103 G Gigabit Ethernet 102 Glossary 101 M MAC address 104 media access control 104 monitoring traffic 66 70 H half duplex 103 N network analyzer 66 70 network defined 104 108 INDEX P password changing 40 default blank 40 setting 36 port settings configuring 56 60 66 positioning the Switch 18 POST 21 protocol defined 104 R repair authorization number by FAX Asia and Pacific Rim 81 resetting to factory defaults 75 RJ 45 defined 104 S server defined 105 SFP transceivers approved supported 22 inserting 22 removing 23 spot checks 23 subnet mask 105 Switch positioning 18 switch defined 105 T TCP IP 103 defined 105 technical specifications 83 traffic 105 monitoring 66 70 troubleshooting 75 LED related issues 76 POST failed 21 trunking See link aggregation U user name default 40 V viewing status information 35 VLANs 44 c
41. G THE BASELINE SWITCH 10 100 Mbps ports can operate in either half duplex or full duplex mode Physical Features Power over Ethernet Capability Figures 1 2 and 3 show the front and rear panels of The Switch 2426 PWR Plus 3CBLSF26PWR provides 24 Mie ene nn ee een a numbered sections in Front Panel on page 11 and front panel RJ 45 ports that support the IEEE 802 3af Rear Panel on page 15 Power over Ethernet PoE standard Any 802 3af compliant device attached to a port can directly draw power from the Switch over the Ethernet cable without Figure 1 3CBLSF26 Front and Rear Panels requiring its own separate power source This capability gives network administrators centralized power control for devices such as IP phones and wireless access points which translates into greater network availability The Switch also supports a pre standard implementation of 802 3at delivering up to 29 6 W per port measured at the PD assuming 100 m Cat 5E cable connected between the PD and the Switch 2426 PWR subject to the maximum power budget available Gigabit Combo Ports RJ 45 SFP The 2 Gigabit combo ports support fiber Gigabit Ethernet short wave SX and long wave LX SFP transceivers in any combination This offers the flexibility of using SFP transceivers to provide connectivity between the Switch and a
42. If you are unsure of how to configure the speed duplex setting simply enable autonegotiation for the port You cannot modify the speed duplex settings of ports that are members of a trunk or aggregated link Supported SFP transceivers only operate at 1000 Mbps full duplex Inserting an SFP transceiver into a Gigabit port only disables the corresponding RJ 45 port when there is link on the SFP transceiver Disabling a port that is delivering power will not disable the power being delivered to a connected device Link Aggregation Link aggregation also called trunking refers to bonding multiple ports into a single group to effectively combine the bandwidth into a single connection or a trunk If you are connecting the Switch to another Configuring Port Settings 63 Switch or to an Internet backbone you can aggregate links on the Switch to increase throughput and prevent packet loopback between switches For link aggregation to work the trunks must be configured on both ends switches Four tabs are available on the Port Link Aggregation page m Summary m Create m Modify m Remove Guidelines for Creating Trunks m Any port on the Switch can be used for creating a trunk m The Switch supports a maximum of four trunks m Each trunk may contain up to eight members m A port may only be a member of one trunk at any one time m All ports in a trunk must be configured in an identical manner including commun
43. TCH FROM THE WEB INTERFACE Modify User Remove User This page allows you to modify a user s access level and To remove a user from the Switch click on the user password name then click Remove Figure 24 Modify User Screen Figure 25 Remove User Screen ECCRNNENECTINEESENEUTANE 0 Users Summary Remove User s User Name Access Level User Name Access Level admin Management admin Management monitor Monitor monitor Moni guest Monitor g Username Access Level Monitor M C Password Modify Select user s from the list above and click Remove to remove the User s Password Confirm Password 8 Character Maximum Apply Cancel System Name Setup System Name 255 chars max System Location l 255 chars max System Contact 255 chars max Use these user definable fields to help identify your switch Figure 26 System Name Screen Baseline Switch 2226 Plus E System Time Click Administration then System Time on the menu This screen allows you to set the system time You can set the Year Month Day Hours Minutes and Seconds Figure 27 System Time Screen Set up the system time manually 6 Hours 27 Minutes 10 Seconds 1 Month 1 Day 2001 Year SNMP Administration Settings 43 Simple Network Management Protocol SNMP is a communication protocol designed specifically for managing devices on
44. These are used for rack mounting the unit When mounting the unit you should take note of the guidelines given in Positioning the Switch on page 18 The Switch is 1U 1 7 inches high and will fit in a standard 19 inch rack CAUTION Disconnect all cables from the unit before continuing Remove the self adhesive pads from the underside of the unit if already fitted 1 2 3 Rack Mounting or Free Standing 19 To rack mount the Switch Place the unit the right way up on a hard flat surface with the front facing towards you Locate a mounting bracket over the mounting holes on one side of the unit Insert the two screws supplied in the mounting kit and fully tighten with a suitable screwdriver Figure 4 Rack Mounting the Unit 98580 5066050 aan DE ge ee 9a5ebeen9a 85 5e8eoega 2425 PWR pus d gf TM x Re Agog ane lt SCOM d 4 5 6 Repeat steps 2 and 3 for the other side of the unit Insert the unit into the 19 inch rack and secure with suitable screws not provided Reconnect the cables INSTALLING THE SWITCH Montagesatz Anweisungen Der Switch wird mit zwei Halterungen und vier Schrauben geliefert Diese werden f r den Einbau in einem Baugruppentr ger benutzt Bei der Montage der Baugruppe beachten Sie die Anweisungen aus Positioning the Switch auf page 18 Der Switch ist eine Baueinheit hoch und passt in einen Standard 19
45. able Diagnostic Screen IN c A Select a Port au m eee ees eT Test Result OK Cable Fault Distance 0 0 Last Update 2001 1 1 4 37 5 Note The pair number from the row of cable fault distance represents Tx and Rx The cable length unit is in meter and the pair number has a margin error less than 2 meters of the transmit pairs The second digit the length of the In the example 0 0 the first digit refers to the length receive pairs Monitoring 73 74 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE 5 This chapter lists some issues that you may encounter while installing using and managing the Switch with suggested courses of corrective action to take If you encounter an issue that is not listed here and you cannot solve it check the 3Com Knowledgebase at http knowledgebase 3com com before contacting your local technical support representative For more information on how to obtain support for your Switch refer to Appendix A TROUBLESHOOTING Resetting to Factory Defaults If the Switch does not operate normally or if the firm ware becomes corrupted you can reset the Switch to factory defaults Connect to the console interface as detailed elsewhere in this user guide During the power up sequence after the Power On Self Test has completed the following message will be dis played Press
46. al Area Networks ist vorausgesetzt If release notes are shipped with your product and the P information there differs from the information in this guide follow the instructions in the release notes Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format PDF or HTML on the 3Com World Wide Web site www 3Com com Conventions Table 1 and Table 2 list conventions that are used throughout this guide Table 1 Notice Icons Icon Notice Type Description Information note Information that describes important features or instructions AY Caution Information that alerts you to potential loss of data or potential damage to an application system or device Information that alerts you to potential personal injury AN Warning ABOUT THIS GUIDE Table 2 Text Conventions Convention Description The words enter When you see the word enter in this and type guide you must type something and then press Return or Enter Do not press Return or Enter when an instruction simply says type Keyboard key names If you must press two or more keys simultaneously the key names are linked with a plus sign Example Press Ctrl Alt Del Words in italics Italics are used to m Emphasize a point m Denote a new term at the place where it is defined in the text m Identify menu names menu commands and software button names Examples
47. and modifies the current port traffic monitoring configuration m Removes port traffic monitoring settings Contains tabs that allow you to m Display cable diagnostics information for all ports m Perform cable diagnostics for selectd ports Displays 3Com contact information and describes how to use the online help system Allows you to securely log off the Web interface following buttons may appear m Apply Click to save and apply any changes that you have made m Cancel Click to discard any unsaved changes Accessing the Switch using the 3Com Switch Detect Application 31 Port Status There is an image of the Switch s front panel in the Device View page which indicates ports that are currently in use To configure a port click the port on the image for the following configuration options m View detailed port information m Configure the port settings m View port statistics Accessing the Switch using the 3Com Switch Detect Application The 3Com Switch Detect application works by automat ically locating your Switch establishing what IP address it is using and then launching your default web browser to connect directly to it D gt The application will only locate your Switch if it is on the same subnet as the PC on which the application is run ning It will not be able to locate your Switch if there is a router between your PC and the Switch The applica tion is only designed to run on Window
48. c UNIX is a registered trademark in the United States and other countries licensed exclusively through X Open Company Ltd IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers Inc All other company and product names may be trademarks of the respective companies with which they are associated ENVIRONMENTAL STATEMENT It is the policy of 3Com Corporation to be environmentally friendly in all operations To uphold our policy we are committed to m Establishing environmental performance standards that comply with national legislation and regulations m Conserving energy materials and natural resources in all operations m Reducing the waste generated by all operations Ensuring that all waste conforms to recognized environmental standards Maximizing the recyclable and reusable content of all products m Ensuring that all products can be recycled reused and disposed of safely m Ensuring that all products are labelled according to recognized environmental standards m Improving our environmental record on a continual basis End of Life Statement 3Com processes allow for the recovery reclamation and safe disposal of all end of life electronic components Regulated Materials Statement 3Com products do not contain any hazardous or ozone depleting material Environmental Statement about the Documentation The documentation for this product is printed on paper that comes from sustainab
49. cated TCP IP Transmission Control Protocol Internet Protocol This is the name for two of the most well known protocols developed for the interconnection of networks Originally a UNIX standard TCP IP is now supported on almost all platforms and is the protocol of the Internet TCP relates to the content of the data travelling through a network ensuring that the information sent arrives in one piece when it reaches its destination IP relates to the address of the end station to which data is being sent as well as the address of the destination network Traffic Monitoring Enables the monitoring of port traffic by attaching a network analyzer to one switch port in order to monitor the traffic of other ports on the Switch Trunking A method which specifies how to create a single high speed logical link that combines several lower speed physical links 106 GLOSSARY VLAN A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network A VLAN serves as a logical workgroup with no physical barriers and allows users to share information and resources as though located on the same LAN INDEX Numbers 1000BASE LX 101 1000BASE SX 101 1000BASE T 101 100BASE TX 101 1OBASE T 101 D DHCP 102 diagram front panel 11 dynamic host control protocol 102 A auto IP configuration 37 E Ethernet 102 l E
50. cessing the Web interface and modifying the Switch s settings the interface is password protected The default admin account settings are m User name admin m Password blank no password VN ON Summary To ensure that unauthorized users do not access the Web interface 3Com recommends that you set an admin password when you first configure the Switch Even if you do not intend to actively manage the Switch 3Com recommends that you change the password to prevent unauthorized access to your network The password can be up to 8 characters long and is case sensitive If you forget the administration password after you set it refer to Resetting to Factory Defaults on page 75 for information on how to regain access to the Web interface User Summary Displays the list of user names and their access level Figure 22 User Summary Screen Setup Modify i Remove Users Summary User Name Access Level admin monitor guest Management Monitor Monitor Administration Settings 41 Create User This page allows you to create a user and define the access level and password for that user Figure 23 Create User Screen s NETTNENENETT Create a User Username ka 8 chars Access Level Monitor e Password 1 8 chars Confirm Password Summary User Name Access Level admin Management monitor Monitor guest Monitor 42 CHAPTER 4 CONFIGURING THE SWI
51. d to a COM port on your PC or MAC Configure a suitable terminal emulator application for 38 400 baud 8 data bits no parity and 1 stop bit Flow control should be disabled When the Switch has completed its power up sequence and is ready to operate pressing the carridge return on your keyboard will result in a prompt on the console interface Enter the username admin with no password You will now be presented with a short menu of commands Enter summary to display the basic settings for the Switch Included in this information is m The IP address m Subnet mask and m Default gateway The Switch will take up to two minutes to try to obtain an IP address During this time the above addresses will be displayed as 0 0 0 0 Only after this period if the Switch has not been able to obtain an IP address will you see information similar to that shown in Figure 6 Figure 6 CLI Summary with Default IP Address Connected 0 06 49 If the Switch has obtained a DHCP lease the IP address will be shown Make a note of it for use when you are ready to use your Web browser to connect to the Switch If the 169 254 xx yy address is not suitable you can change to a manually assigned IP address by entering ipsetup manual and then entering the required values after the prompts Enter 1 in the VLAN ID Enter summary to display the new IP settings Figure 7 shows what you should expect to see Note that when a manual IP addre
52. de lift shafts microwave ovens and air conditioning units Electromagnetic fields can interfere with the signals on copper cabling and introduce errors therefore slowing down your network Water or moisture cannot enter the case of the unit m Air flow around the unit and through the vents on the side of the case is not restricted 3Com recommends that you provide a minimum of 25 mm 1 in clearance m The air is as free from dust as possible Temperature operating limits are not likely to be exceeded It is recommended that the unit is installed in a clean air conditioned environment gt It is always good practice to wear an anti static wrist strap when installing network equipment connected to a ground point If one is not available try to keep in contact with a grounded rack and avoid touching the unit s ports and connectors if possible Static discharge can cause reliability problems in your equipment Rack Mounting or Free Standing N The unit can be mounted in a 19 inch equipment rack using the mounting kit or it can be free standing Do not place objects on top of the unit or stack CAUTION If installing the Switch in a free standing stack of different size Baseline or Superstack 3 units the smaller units must be installed above the larger ones Do not have a free standing stack of more than six units Using the Mounting Kit The Switch is supplied with two mounting brackets and four screws
53. directory file named LICENSE TXT or LICENSE TXT If you are unable to locate a copy please contact 3Com and a copy will be provided to you UNITED STATES GOVERNMENT LEGEND If you are a United States government agency then this documentation and the software described herein are provided to you subject to the following All technical data and computer software are commercial in nature and developed solely at private expense Software is delivered as Commercial Computer Software as defined in DFARS 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a and as such is provided with only such rights as are provided in 3Com s standard commercial license for the Software Technical data is provided with limited rights only as provided in DFAR 252 227 7015 Nov 1995 or FAR 52 227 14 June 1987 whichever is applicable You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in or delivered to you in conjunction with this User Guide Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com and the 3Com logo are registered trademarks of 3Com Corporation Intel and Pentium are registered trademarks of Intel Corporation Microsoft MS DOS Windows and Windows NT are registered trademarks of Microsoft Corporation Novell and NetWare are registered trademarks of Novell In
54. dministration then Backup amp Restore on the menu The Backup Configuration screen appears Figure 19 Backup Configuration ion O O OOO This operation backs up the saved configuration file of this device via HTTP Backup Configuration Caution Ifyou have changed the configuration since the last save you are recommended to save the configuration file before backing it up Source File startup2 cfg 2 Click OK You will be prompted to provide a location where the configuration file will be saved Administration Settings 39 Figure 21 Upgrade Screen Firmware Upgrade Restore Configuration To reload configuration settings that you previously saved to a file This operation will upgrade the current firmware via HTTP Please Reboot the device to activate the new firmware 1 Click Administration Backup amp Restore then the Restore Configuration tab The Restore Configuration screen appears NOTE During the firmware upgrade the switch may not respond to commands for a couple of minutes This is normal Do not turn the Switch off during this time Source File L Brewse Figure 20 Restore Configuration This will restore the Saved configuration on this device Please reboot the device to activate the new configuration 1 Click Administration then Firmware Upgrade on the JCBrewse menu The Firmware Upgrade screen appears Source File 2 Once you have dow
55. e An organization responsible for providing engineering solutions for TCP IP networks In the network management area this group is responsible for the development of the SNMP protocol Internet Protocol IP is a layer 3 network protocol that is the standard for sending data through a network IP is part of the TCP IP set of protocols that describe the routing of packets to addressed devices An IP address consists of 32 bits divided into two or three fields a network number and a host number or a network number a subnet number and a host number IP Address ISP LAN Internet Protocol Address A unique identifier for a device attached to a network using TCP IP The address is written as four octets separated with periods full stops and is made up of a network section an optional subnet section and a host section Internet Service Provider An ISP is a business that provides connectivity to the Internet for individuals and other businesses or organizations Local Area Network A network of end stations such as PCs printers servers and network devices hubs and 104 GLOSSARY switches that cover a relatively small geographic area usually not larger than a floor or building LANs are characterized by high transmission speeds over short distances up to 1000 metres Layer 2 Data Link layer in the ISO 7 Layer Data Communications Protocol This is related directly to the hardware interface for the network devices a
56. e IP address that is assigned to the Switch set the admin password reboot the Switch or upgrade the Switch firmware via TFTP To connect to the Console Port you need the following m The console cable provided in the Switch package connected to the console port of the Switch and to an available serial com port on your computer m A terminal emulation application capable of VT100 emulation installed on your computer Configure the com port connection parameters in your terminal emulator as follows Com port Choose based on the computer serial port to which the console cable is attached often COM1 m Speed baud 38400 m Data bits 8 m Stop bits 1 m Parity None m Flow Control None 4 10 100BASE TX Link Activity Status LEDs The top row 3CBLSF50 and the first top and third rows 3CBLSF26 3CBLSF26PWR of LEDs which are colored yellow or green show the link activity and speed status of the related ports Table 14 10 100BASE TX Link Activity Status LEDs Status Meaning Green The link is operating at 100 Mbps Yellow The link is operating at 10 Mbps Flashing Packets are being received or transmitted on the Green port at 100 Mbps Flashing Packets are being received or transmitted on the Yellow port at 10 Mbps Off The link has not been established nothing is connected to the port or there is a problem m Check that the attached device is powered on m Check that the cable is the correc
57. e grade cable and can only be used in Ethernet networks 10BASE T to transmit data at speeds of up to 10 Mbps Category 5 Cables One of five grades of Twisted Pair TP cabling defined by the EIA TIA 568 standard Category 5 can be used in Ethernet 10BASE T and Fast Ethernet networks 100BASE TX and can transmit data at speeds of up to 100 Mbps Category 5 cabling is better to use for network cabling than Category 3 because it supports both Ethernet 10 Mbps and Fast Ethernet 100 Mbps speeds Category 5e Cables One of five grades of Twisted Pair TP cabling defined by the EIA TIA 568 standard Category 5e can be used in Ethernet TOBASE T Fast Ethernet 100BASE TX and Gigabit Ethernet 1000BASE T networks and can transmit data at speeds of up to 1000 Mbps Category 6 Cables One of five grades of Twisted Pair TP cabling defined by the EIA TIA 568 B standard Category 6 can be used in Ethernet TOBASE T Fast Ethernet 100BASE TX and Gigabit Ethernet 1000BASE T networks and can transmit data at speeds of up to 1000 Mbps Client The term used to describe the desktop PC that is connected to your network DHCP Dynamic Host Configuration Protocol This protocol automatically assigns an IP address for every computer on your network Windows 95 Windows 98 and Windows NT 4 0 contain software that assigns IP addresses to workstations on a network These assignments are made by the DHCP server software that
58. e same VLAN but are on different switches to communicate provided that a port on each Switch is set to Tagged and that these ports are connected Figure 39 Tagged VLAN Configuration Endstation in VLAN 1 Untagged Server in VLAN 1 Untagged Endstation in VLAN 2 Untagged Switch 1 Port 16 in VLANs 1 and 2 Tagged Switch 2 Port 8 in VLANs 1 and 2 Tagged Endstation in VLAN 2 Untagged Endstation in VLAN 1 Untagged Server in VLAN 2 Untagged To set up the configuration shown in Figure 39 do the following Create VLAN2 on both Switch 1 and Switch 2 You need not create VLAN1 since it exists by default Configuring VLANs 51 2 On Switch 1 set the ports that you want to be part of VLAN2 to Untagged Set one port for example port 16 to Tagged Click Apply On Switch 2 set the ports that you want to be part of VLAN2 to Untagged Set one port for example port 8 to Tagged Click Apply Connect the Tagged port on Switch 1 in this example port 16 to the Tagged port on Switch 2 in this example port 8 Those ports on Switch 1 that are members of VLAN2 can now communicate with those ports on Switch 2 that are members of VLAN2 Spanning Tree Spanning tree is a bridge based system for providing fault tolerance on networks and can be used to detect and disable network loops The spanning tree ensures that the optimal path is mai
59. ecific port or VLAN The Address Table menu includes two tabs m Summary m Port Summary Summary Use the Summary tab to display the address table information for all ports entire contents of the address table into the clipboard Clicking on any entry in the address table will copy the for use with other applications Figure 65 Address Table Summary Screen sw cn 8 ONNNNNNNNNEENM Summary Port MAC Address VLAN Status di 00 30 F1 2F BE 30 1 Dynamic Port Summary Use the Port Summary tab to display the address table information for selected ports Figure 66 Address Table Port Summary Screen Select a port Summary Port MAC Address VLAN Status 11 00 30 F1 2F BE 30 a Dynamic Port Mirroring The Switch allows you to monitor traffic going in and out of a particular port For traffic monitoring to work you need to attach a network analyzer to one port and use it to monitor the traffic of other ports on the Switch To set up traffic monitoring you need to set a monitor port the port that is connected to the analyzer and a mirror port the port that is to be monitored Once the pair is defined and you enable traffic monitoring the Switch takes all the traffic going in or out of the mirror port and copies it to the monitor port bandwidth than the mirror port Otherwise the Switch may not be able to
60. ecurity settings Select the ports you would like to apply these settings to Click Apply Figure 48 QoS Port Setup Screen Setup Port Setup Port Detail OUI Summary OUI Modify 3Com Voice VLAN Port Settings Voice VLAN Port Mode No Changes Voice VLAN Port Security No Changes Select Port Selected Ports Select All Apply Cancel 58 EE CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE Port Detail Use the Port Detail tab to display the Voice VLAN information for selected ports Figure 49 QoS Port Detail Screen 3Com Voice VLAN Port Detail Select Port OUI Summary Use the OUI Summary tab to display the list of Organizational Unique Identifier for a company and their description Figure 50 QoS OU Summary Screen Summary Setup Port Setup Port Detail oulsummary EUW OUI List Telephony OUI s Description 00 EO BB 00 00 00 3Com phone 00 03 6B 00 00 00 Cisco phone 00 E0 75 00 00 00 Polycom phone 00 D0 1E 00 00 00 Pingtel phone 00 01 E3 00 00 00 m a Siemens AG phone OUI Add Use the OUI Modify tab to add to the list of Organizational Unique Identifier The following options are available m Telephony OUI Input a new company identifier to add to the list m Description Input a descr
61. evice The device is managed through the CLI from a direct connection to the device console port Getting Started with the Command Line Interface Using the CLI network managers enter configuration commands and parameters to configure the device Using the CLI is very similar to entering commands on a UNIX system Console Port To start using the CLI via a console port 1 Connect the RJ 45 cable to the Console port of the switch to the serial port of the terminal or computer running the terminal emulation application 2 Setthe baud rate to 38400 3 Set the data format to 8 data bits 1 stop bit and no parity 4 Set Flow Control to none Under Properties select VT100 for Emulation mode 6 Select Terminal keys for Function Arrow and Ctrl keys Ensure that the setting is for Terminal keys not Windows keys Logging on to the CLI The Login process requires a User Name and Password The default user name for first time configuration is admin No password is required User names and passwords are case sensitive To logon to the CLI Interface 1 Press Enter without typing in a username The Login prompt displays Login 2 Enter your User Name at the Login prompt 3 Press Enter The Password prompt displays Password The Login information is verified and displays the fol lowing CLI menu Select menu option 92 APPENDIX D 3COM CLI REFERENCE GUIDE If the pas
62. g Auto Point to Point 128 a Summary 21 Enabled 100000 Enabled Discarding Auto Point to Point 128 22 Enabled 100000 Enabled Discarding Auto Point to Point 128 E Setup 23 Enabled 100000 Enabled Discarding Auto Point to Point 128 24 Enabled 100000 Enabled Discarding Auto Point to Poinf 128 m PortSetup 25 Enabled 10000 Enabled Discarding Auto Pointto Point 128 26 Enabled 10000 Enabled Discarding Auto Point to Point 128 State Priority 0 61440 in steps of 4096 32768 STP Version RSTP M Setup To use spanning tree use the Setup tab and choose Enabled from the State drop down menu fill in the setup parameters and click Apply Figure 41 Spanning Tree Setup Screen Setup c Enebled v Hello Time 2 1 10 seconds Fordwarding Delay n 5 4 30 seconds Max Aging Time 20 6 40 seconds Path Cost Method Long Transmission Limit 3 1 10 Cancel Port Setup This administrative tool supports the configuration of the Switch to forward or block and discard 802 1D spanning tree BPDU packets Spanning tree is a bridge based system for providing fault tolerance on networks and can be used to detect and disable network loops The spanning tree ensures Configuring VLANs 53 that the optimal path is maintained between spanning tree compliant networked devices by m Disabling redundant paths when the main paths are operational m Enabling red
63. g the Web Interface To connect to the Web interface you need one or more of the following m The console cable that was supplied with your Switch m The 3Com Switch Detect application that is included on the CD ROM that was supplied with your Switch m Acomputer that is connected to the Switch and that has a Web browser Using the Console Command Line Interface CLI In order to connect to the Web interface of the Switch it is necessary to know its IP address The IP addressing mode of the Switch is covered in Section 4 Administration IP Setup on page 37 In summary the 26 CHAPTER 3 CONNECTING TO THE WEB INTERFACE switch will try to obtain an IP address from a DHCP server assuming the Switch is connected into a network where one is available If there is no DHCP server available or you are configuring the Switch in a stand alone mode the Switch will allocate itself an Auto IP address of 169 254 xx yy These last two numbers are taken from the last two numbers of the MAC address This default IP address can be seen on the label attached to the top cover of your Switch In order to see the IP address that has been allocated to the Switch by a DHCP server or to manually assign one it is necessary to use the console interface The CLI Command Reference Guide is covered in Appendix D Connect the supplied console cable to the console Socket located on the front panel of the Switch This should be connecte
64. hat is supplied with the unit 16 INTRODUCING THE BASELINE SWITCH Package Contents Before installing and using the Switch verify that your Switch package is complete The Switch comes with m One power cord m One console cable Four standard height self adhesive rubber pads One mounting kit part number 123193 104 w Installation CD m This User Guide wm Warranty flyer The Switch is powered from the AC supply If any of the above items are damaged or missing contact your 3Com network supplier immediately 2 INSTALLING THE SWITCH This chapter contains information that you need to install and set up the Switch It covers the following topics Important Safety Information m Positioning the Switch m Rack Mounting or Free Standing m Supplying Power to the Switch m Using SFP Tranceivers m Performing Spot Checks Important Safety Information Please refer to the safety information found in the 3Com Switch Family Safety and Regulatory Information manual included with this product You can find the 3Com Switch Family Safety and Regulatory Information manual on the product CD ROM that was included with your switch You can also download the safety manual from the 3Com Web site www 3Com com Informa es Importantes de Seguran a Por favor antes de manusear o produto leia cuidadosamente as instru es de seguran a encontradas no Manual 3Com Switch Family Safety and Regulatory
65. he device connected to the port is faulty Contact your supplier for further advice Table 6 SFP Mode SFP Duplex Status LEDs SFP Duplex Meaning Green The SFP module is inserted regardless of the link status Off The SFP module is not inserted The SFP module will only disable the 1000BASE T interface once there is a valid link on the module 7 Power LED The Power LED shows the power status of the Switch Table 7 Power Status LED Status Meaning Green The unit is powered on and ready for use Yellow Internal power POST or loopback test has failed Switch is in fail safe mode Flashing The Switch is undergoing the power up sequence or a software upgrade is underway Off The unit is not receiving power m Check that the power cord is connected correctly m If the unit still does not operate contact your supplier 8 Self adhesive Pads The unit is supplied with four self adhesive rubber pads gt Rear Physical Features 15 Do not apply the pads if you intend to rack mount the unit If the unit is to be part of a free standing stack apply the pads to each marked corner area on the underside of the unit Place the unit on top of the lower unit ensuring that the pads locate within the recesses of the lower unit Panel The rear panel of the Switch contains the power supply socket 9 Power Socket The Switch automatically adjusts to the supply voltage Only use the power cord t
66. he serial port on the terminal as shown in Figure 71 Figure 71 Console Cable Direction A Main label Direction B 1 qi Table 1 Console Cable Pinouts RJ 45 Signal Direction DB9 DB9 modem console 1 RTS 7 8 2 DTR 4 6 3 TXD 3 2 4 CD 1 5 GND 5 5 6 RXD 2 3 7 DSR 6 4 8 RTS 8 7 88 APPENDIX C PIN OUTS Null Modem Cable Modem Cable RJ 45 to RS 232 25 pin RJ 45 to RS 232 25 pin PC Terminal RS 232 Modem Port Cable connector RJ 45 female Cable connector 25 pin male female Cable connector RJ 45 female Cable connector 25 pin male Screen Shell e 1 Screen only required ifscreen Screen Shell e e 1 Screen TxD 3 e 3 RxD TxD 3 e 2 TxD RxD 2 e e 2 TxD always required RxD 2 e e 3 RxD Ground 5 e 7 Ground RTS 7 e 4 RTS RTS 7 e Le 4 RIS CTS 8 e e 5 CTS CTS 8 e e 20 DTR DSR 6 e e 6 DSR DSR 6 e e 5 CTS required for handshake Ground 5 e e7 Ground DCD 1 e e 6 DSR DCD 1 e 8 DCD DTR 4 e l e8 DCD DTR 4 e e 20 DTR PC AT Serial Cable RJ 4
67. i Reorient the receiving antenna Relocate the equipment with respect to the receiver W Move the equipment away from the receiver E Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 In order to meet FCC emissions limits this equipment must be used only with cables which comply with IEEE 802 3 ICES Statement This Class A digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la Classe A est conforme la norme NMB 003 du Canada 99 CE Statements Europe EU Representative 3Com Europe Limited Peoplebuilding 2 Peoplebuilding Estate Maylands Avenue Hemel Hempstead Hertfordshire HP2 4NW United Kingdom This product complies with the European Low Voltage Directive 73 23 EEC and EMC Directive 89 336 EEC as amended by European EMC Directive 2004 108 EC Warning This is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures A copy of the signed Declarat
68. ication mode that is speed duplex mode and flow control m Both 10 100 and Gigabit ports cannot be combined as members in a single trunk 64 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE Summary Use the Summary tab to display a list of configured link aggregation Group IDs and the associated member Ports Figure 57 Link Aggregation Summary Screen Summary Create Modify Remove GrouplD Ports Link Type a 17 18 19 20 Manual Create Use the Create tab to add ports to a group membership Figure 58 Link Aggregation Create Screen SECEEN o Enter aggregation group id 2 Modify Remove Select ports for the new aggregation TT T porian CALA Selected Ports Oo Member of the aggregation being created Deselected Ports LI Nota member of any aggregation C This portis a member ofan existing aggregation Summary group ID Member Ports 2 3 4 5 6 Apply Cancel To create a new link aggregation group Enter a link aggregation group ID in the text box Select the ports to add to the goup 3 Click Apply Modify Use the Modify tab to reassign member ports of a link aggregation group Figure 59 Link Aggregation Modify Screen LL ooo NCIOHSNNNNNNNNREENEENEEN Select Aggregation to Modify Y galed Select ports to add to aggregation or De select ports to remove from aggregaion
69. inistration Manages the device IP Setup Allows you to setup modify or view the IP configuration parameters Allows you to backup and restore the Backup amp Restore Switch s configuration Firmware Upgrade Upgrades the current firmware via HTTP Reset Performs a system reboot and resets the Switch to factory default settings Contains tabs that allow you to m Display user summary information m Create a new user m Modify existing users m Remove existing users System Access Sets a name location and contact System Name information for the Switch System Time Allows you to set the system time 30 CHAPTER 3 CONNECTING TO THE WEB INTERFACE Menu Item Description Menu Item Description SNMP Contains tabs that allow you to m Set SNMP Agent Status m Add community strings m Remove community strings Device Configures the device VLAN Contains tabs that allow you to Spanning Tree IGMP Snooping amp Query Broadcast Storm QoS m Create a VLAN m Modify a VLAN m Modify VLAN membership for a port m Rename a VLAN m Remove a VLAN m Display VLAN membership for a port m Display VLAN information Contains tabs that allow you to m Display spanning tree information for every port odify spanning tree global settings Enables or disables IGMP snooping and IGMP query mode Allows you to enable and configure or disable rate limiting Configures Quality of Service
70. ion of Conformity can be downloaded from the Product Support web page for the Baseline Switch 2226 SFP Plus 2426 PWR Plus and 2250 SFP Plus at http Awww 3Com com Also available at http support 3com com doc 3CBLSF_EU_DOC pdf VCCI Statement CORES AMUBRESSRESATMHMBS VCC ORB BOC DIAZAGRRHERE CT CORBtRERR CHAT A LER MBESRMIFCEMHVED OBSItIEIE REA aA REET BEIBRENSICEMHVET Pre Standard IEEE 802 3at and Cable Temperatures 3Com recommends that you do not operate your cables above 50 C 122 F if you are using the higher power mode capability of the 3CBLSF26PWR This switch can deliver up to 29 6 W per port measured at the PD assuming 100 m Cat 5E cable connected between the PD and the Switch 2426 PWR subject to power being available and in certain cable installations this may result in increased cable temperatures If you are in anyway unsure of how your cable installation is laid out you should contact an approved cable installation company for advice prior to using the higher power modes This guidance is only applicable to pre standard 802 3at operation When operating in 802 3af 15 4 W mode it is not necessary to run at lower than rated cable temperatures 100 GLOSSARY 10BASE T The IEEE specification for 10 Mbps Ethernet over Category 3 4 or 5 twisted pair cable 100BASE TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twisted pair cable 1000BASE LX IEEE 802 3z specification fo
71. iption for the new company identifier To add to the OUI list Enter a Telephony OUI and description Click Aad To remove an OUI from the list Select a Telephony OUI from the list Click Remove Configuring VLANs 59 Figure 51 QoS OUI Modify Screen Summary Summary Setup Port Setup Port Detail OUI Summary OUI Modify E Use the Summary tab to display the device and port PoE Specify a telephony OUI and click the Add button to add a telephone to the list setti ngs persono nau oe20e90 3000630 Figure 52 PoE Summary Screen Description Add Remove Device Power Display State Power Max watts Power Used watts Power Free watts on 180 0 0 0 180 0 Telephony OUI s Description 00 E0 BB 00 00 00 3Com phone 00 03 6B 00 00 00 Cisco phone i3 Select Port 00 E0 75 00 00 00 Polycom phone 3 00 D0 1E 00 00 00 Pingtel phone 00 01 E3 00 00 00 Siemens AG phone v Cancel B B Pm Oke Disabled a M Port Power Display PoE 3CBLSF26 PWR only Port State Mode Power Max watts Power Used watts Voltage V Current mA Click Device then PoE on the menu A screen appears with two tabs that include Setup m Summary m Setup Use the Setup tab to configure the device and port PoE settings The settings include m PoE State Enables and disables PoE for the switch m Auto Al
72. itch has entered fail safe mode The following summarizes the possible colors for the Power LED after POST N Supplying Power to the Switch 21 Table 8 Power LED POST Indications Status Meaning Green The unit is powered on and ready to use Yellow Power on self test or loopback test failed The Switch is in fail safe mode This can happen if a port or ports fail when the Switch was powered on Off The unit is not receiving power m Verify that the power cord is connected cor rectly and then try powering on the Switch again m f the Switch still does not operate contact your 3Com network supplier If POST fails try the following m Power off the Switch and then power it on again Check the Power LED and see if POST was successfully completed m Reset the Switch See Resetting to Factory Defaults on page 75 CAUTION Resetting the Switch to its factory defaults erases all your settings You will need to reconfigure the Switch after you reset it If these do not resolve the issue m Check the 3Com Knowledgebase for a solution To visit the 3Com Knowledgebase Web site start your Web browser and then enter http knowledgebase 3Com com Contact your 3Com network supplier for assistance 22 INSTALLING THE SWITCH Using SFP Tranceivers The following sections describe how to insert an SFP transceiver into an SFP slot SFP transceivers are hot insertable and hot swappable
73. k An authentication server contains a database of multiple user name password pairs with associated privilege levels for each user or group that require management access to a switch Configure The following parameters are available m Max Retries Sets the number of retries of sending authentication requests m Timeout Sets the interval between sending authentication requests m P Address The IP address of the RADIUS server m UDP port The RADIUS server UDP port used for authentication messages m Key Sets the RADIUS encryption key A primary RADIUS server IP address must be specified for the Switch to implement IEEE 802 1X security A secondary RADIUS server may also be specified as a backup should the primary server fail or become inaccessible After you have filled in the parameters click Apply to save your changes Max Retries UDP port 1812 Security 67 Figure 62 RADIUS Client Configure Screen Radius configuration parameters 2 Timeout I default 2 secs 1 30 default 5 secs 1 565535 Primary Authentication IP Address 0 0 0 0 UDP port 1812 default 1812 Secondary Authentication IP Address 0 0 0 0 default 1812 Okey ji 049 Verify Key 0 48 802 1X Settings The IEEE 802 1X standard defines a port based access control procedure that prevents unauthorized access to a network by requiring users to first submit credentials for authenticatio
74. le managed forests it is fully biodegradable and recyclable and is completely chlorine free The varnish is environmentally friendly and the inks are vegetable based with a low heavy metal content CONTENTS ABOUT THIS GUIDE Conventions 7 Documentation Comments 8 Product Registration 8 INTRODUCING THE BASELINE SWITCH Overview of the Baseline Switch 9 Features and Capabilities 9 Autosensing of MDI MDIX Connections Autonegotiating 10 100 Mbps Ports Power over Ethernet Capability 10 9 Gigabit Combo Ports RJ 45 SFP 10 Physical Features 10 Front Panel 11 Rear Panel 15 Package Contents 16 INSTALLING THE SWITCH Important Safety Information 17 Positioning the Switch 18 Rack Mounting or Free Standing 19 Using the Mounting Kit 19 Montagesatz Anweisungen 20 Placing Units On Top of Each Other 20 Supplying Power to the Switch 20 Checking for Correct Operation 21 Using SFP Tranceivers 22 Approved SFP Transceivers 22 Inserting an SFP Transceiver 22 Removing an SFP Transceiver 23 Performing Spot Checks 23 CONNECTING TO THE WEB INTERFACE Requirements for Accessing the Web Interface 25 Using the Console Command Line Interface CLI 25 Logging On to the Web Interface 27 Navigating the Web Interface 28 Menu 28 Buttons 31 PortStatus 31 Accessing the Switch using the 3Com Switch Detect Application 31 Running the 3Com Switch Detect Application 32 CONFIGURING THE SwiTCH FROM TH
75. ll external cabling connec tions are secure and that no cables are pulled taut Cooling fan Where possible check that the cooling fan 3CBLSF26PWR is operating by listening to the unit The only fan is fitted near to the front right hand side of the unit when viewed from the front If you experience any problems operating the Switch refer to Troubleshooting on page 75 3 The Switch has a built in Web interface that you can use to set the admin password change the IP address that is assigned to the Switch and configure its advanced settings If you only want the Switch to function as a basic layer 2 switch you do not need to access the Web interface and configure the Switch This chapter provides information on how to gain access to the Web interface using the Discovery applica tion It also introduces the menu items and buttons that are available on the Web interface The following topics are covered m Requirements for Accessing the Web Interface m Using the Console Command Line Interface CLI m Logging On to the Web Interface m Navigating the Web Interface m Accessing the Switch using the 3Com Switch Detect Application The Switch support the following browsers m Microsoft Internet Explorer V6 0 and subsequent releases CONNECTING TO THE WEB INTERFACE m Mozilla Firefox V2 0 and subsequent releases m Netscape V7 0 and subsequent releases Requirements for Accessin
76. llection of network nodes that share the same collision domain regardless of their physical location or connection point in the network A VLAN serves as a logical workgroup with no physical barriers and allows users to share information and resources as though located on the same LAN You can use the Switch to create VLANs to organize any group of ports into separate broadcast domains VLANs confine broadcast traffic to the originating group and help eliminate broadcast storms in large networks This also provides for a more secure and cleaner network environment You can create up to 256 VLANs add specific ports to a chosen VLAN so that the port can only communicate with other ports on the VLAN or configure a port make it a member of multiple or even all VLANs Communication between different VLANs can only take place if they are all connected to a router or layer 3 switch The Device menu includes five or six for 3CBLS26PWR only items m VLAN m Spanning Tree m IGMP Snooping and Query m Broadcast Storm m QoS m PoE VLAN Configuring VLANs 45 Click Device then VLAN on the menu A screen appears with seven tabs that include m Setup m Modify VLAN m Modify Port m Rename m Remove m Port Detail m VLAN Detail 46 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE Setup interface If this happens you will need to reset the Use the Setup screen to create VLANs on the Switch To i setengs pro
77. lowing Spanish speakers enter the URL http 1at 3com com lat support form html Portuguese speakers enter the URL http lat 3com com br support form html English speakers in Latin America should send e mail to lat support anc83com com US and Canada Telephone Technical Support and Repair 1 800 876 3266 B TECHNICAL INFORMATION 3CBLSF26 Related Standards The Baseline Switch 2226 SFP Plus has been designed to the following standards Functional MAC Address Safety EMC Emissions Immunity Environmental Operating Temperature Storage Temperature Humidity Standard IEEE 802 3 Ethernet IEEE 802 3u Fast Ethernet IEEE 802 3ab and IEEE 802 3z Gigabit Ethernet IEEE 802 3x Flow Control IEEE 802 1D 1993 Bridging IEEE 802 1Q 1998 Virtual LAN 8192 UL 60950 1 EN 60950 1 CSA 222 60950 1 IEC 60950 1 EN61000 3 2 amp EN61000 3 3 EN 55022 Class A FCC Part 15 Subpart B Class A ICES 003 Class A VCCI Class A CISPR 22 Class A EN 55024 0 40 C 32 104 F 40 70 C 40 158 F 0 95 non condensing EN 60068 IEC 68 various parts Physical Width Depth Height Weight Mounting Electrical Power Inlet AC Line Frequency Input Voltage Current Rating 44 cm 17 3 in 17 3 cm 6 8 in 4 4 cm 1 7 in or 1U 1 66 kg 3 66 lbs Free standing or 19 inch rack mounted using the mounting kit supplied IEC 320 50 60 Hz 100 240 VAC auto range
78. lows the switch to manage the PoE budget for selected ports m Guarantee Manually input the maximum power you would like a connected device to receive Note that this does not mean that the port has priority over other ports Range 3 29 6 Watts 60 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE scheme Lower numbered ports have priority over higher numbered ones If you need to ensure that critical devices get power where you are likely to exceed the total power budget available you should connect these to low port numbers and ensure these ports have their Guarantee power set I Note that the Switch operates a port based PoE priority Figure 53 PoE Setup Screen LE o ce Select Ports PoE State Enabled Disabled PoE Mode for selected amp enabled ports Auto Power is prioritised to higher numbered ports first Guarantee Power Summary Total PoE Available 180 0W Guaranteed PoE 0 0W Remaining Available Guaranteed 180 0 This will allocate 29 6 Watts from the overall power budget O Guarantee avaliable Selected Ports Configuring Port Settings Using the Web interface you can configure the speed duplex flow control and link aggregation settings of each port You can also view the current connection status of each port or shut down or disable ports The Port menu includes three items m Administration m Li
79. lt 60 seconds m Transmit Period Sets the time period during an authentication session that the switch waits before re transmitting an EAP packet Range 1 65535 Default 30 seconds After you have filled in the parameters click Apply to save your changes Monitoring 69 Figure 64 802 1X Setup Screen ECCUNN mm 1 802 1X System Setting System Authentication Enabled Port Settings Operation Mode Single Host Default Single Host Admin Port Control Auto Default Force Authorized ModeReauthentication Enabled v Default Disable v Maximum Request 2 Default 2 v Max Count 5 Default 5 MReauthentication Period 3600 Default 3600 seconds v Quiet Period 60 Default 60 seconds 7 Transmit Period 30 Default 30 seconds CEST TR seer Sai CH Comi Monitoring Using the Web interface you can display address table information set up port mirroring and perform cable diagnostics The Monitoring menu includes three items m Address Table m Port Mirroring m Cable Diagnostics Address Table The Switch s address table contains the MAC addresses learned by monitoring the source address for traffic 70 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE entering the Switch You can display the address table to find specific MAC addresses or view MAC addresses associated with a sp
80. n aC Modify VLAN Modify Port Rename MEL TT MN rie men Deel Choose a VLAN to rename 1D Name Selected ID 1 Enter new name Defaultvlan Apply 48 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE 1 Enter a set of VLANs or select all VLANs to add to the rename list then click Select 2 From the list of selected VLANs choose a VLAN to rename Enter a new VLAN name and click Apply Remove Use the Remove screen to remove a VLAN Figure 35 Remove Screen Modify Port GEILE Remove PortDetail VLAN Detail Setup Modify VLAN Select the VLANs to remove ID Name 1 DefaultVlan Select All Select None 1 Enter a set of VLANs or select all VLANs to add to the remove list then click Select 2 From the list of selected VLANs choose a VLAN to remove or click the Select All button to select all the VLANs Click Remove to remove the VLAN To delete a VLAN all port members must first be i gt removed from the VLAN Setup Select Port ae Port Detail Choose a port to display the tagged and untagged VLAN memberships it is associated with Figure 36 Port Detail Screen Modify VLAN Modify Port Rename Remove Port Detail VLAN Detail II CACA Untagged member of VLAN s Tagged member of VLAN s 1 VLAN Detail Use this screen to display detailed VLAN informatio
81. n 1 Enter a set of VLANs or select all VLANs to add to the details list then click Se ect 2 From the drop down menu choose a VLAN to display the associated tagged and untagged member ports Figure 37 VLAN Detail Screen ModivVLAN ModivPot Rename oo Selecta VLAN to display 1 vj Membership type Untagged Tagged Not A Member Untagged member s Tagged member s Porti Port2 Port3 Port4 Ports Ports Port Porto Ports Porti Portii Porti2 Porti3 Port14 Porti5 Porti6 Port17 Port18 Porti9 Port20 Port21 Port22 ud Port24 Port25 Port26 Forwarding Tagged Untagged Frames Each port on the Switch is capable of passing tagged or untagged frames The following describes how the Switch will handle tagged and untagged frames Configuring VLANs 49 m When a port receives a tagged frame with a VLAN ID and the port is a member untagged or tagged of that VLAN the frame is accepted Otherwise the if the port is not a member of that VLAN the frame is discarded m When a port receives an untagged frame and the port is an untagged member of a VLAN the frame is accepted and assigned to that VLAN ID Otherwise if the port is not an untagged member of any VLAN the frame is discarded The Switch will only forward a frame to ports that are members tagged or untagged of the VLAN to which the frame is assigned If the port is an untagged member the egress frame
82. n The 802 1X settings menu includes two tabs m Summary m Setup 68 Curent Port Period Reauthentication Authenticator CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE Summary Use the Summary tab to display the 802 1X authentication settings for all the ports Figure 63 802 1X Summary Screen C Eun T Authenticator Authenticator p thenticator Authenticator Authenticator por Reauthentication Period State ia Tere Max Count Quiet Period Visi 1 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 80 30 2 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 0 3 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 0 30 4 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 60 w 5 Unauthorzed Disabled 3600 Force Authorized Single Host E 5 60 6 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 80 7 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 80 8 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 80 9 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 0 10 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 80 11 Authorized Disabled 3600 Force Authorized Single Host 2 5 80 12 Unauthorized Disabled 3600 Fore Aufhonzed Single Host 2 5 CE 13 Unauthorized Disabled 3600 Force Authori
83. nd passes on traffic based on MAC addresses Link Aggregation See Trunking MAC Media Access Control A protocol specified by the IEEE for determining which devices have access to a network at any one time MAC Address Media Access Control Address Also called the hardware physical or Ethernet address A layer 2 address associated with a particular network device Most devices that connect to a LAN have a MAC address assigned to them as they are used to identify other devices in a network MAC addresses are 6 bytes long Network A Network is a collection of computers and other computer equipment that are connected for the Ping purpose of exchanging information or sharing resources Networks vary in size some are within a single room others span continents Packet Internet Groper An Internet utility used to determine whether a particular IP address is online It is used to test and debug a network by sending out a packet and waiting for a response Power over Ethernet PoE technology describes a system to transmit electrical power along with data to remote devices over standard twisted pair cable in an Ethernet network This technology is useful for powering IP telephones wireless LAN access points network cameras network hubs embedded computers and other appliances where it would be inconvenient expensive or infeasible to supply power separately It works with an unmodified Ethernet cabling infrastructu
84. nk Aggregation m Statistics Administration Three tabs are available on the Port Administration page m Summary m Detail m Setup Summary Use the Summary tab to display Port State Flow Control Speed Default VLAN ID and Duplex for all the ports Figure 54 Port Administration Summary Screen Summary Detail Setup Port State Flow Control Speed Duplex PVID 1 Enabled Disabled Auto Auto 1 2 Enabled Disabled Auto Auto 1 3 Enabled Disabled Auto Auto 1 4 Enabled Disabled Auto Auto 1 5 Enabled Disabled Auto Auto 1 B Enabled Disabled Auto Auto 1 7 Enabled Disabled Auto Auto 1 8 Enabled Disabled Auto Auto 1 9 Enabled Disabled Auto Auto 1 10 j Enabled Disabled Auto Auto 1 11 Enabled Disabled Auto Auto 1 12 Enabled Disabled Auto Auto 1 13 Enabled Disabled Auto Auto 1 14 Enabled Disabled Auto Auto 1 15 Enabled Disabled Auto Auto 1 16 Enabled Disabled Auto Auto 1 17 Enabled Disabled Auto Auto 1 18 Enabled Disabled Auto Auto 1 19 Enabled Disabled Auto Auto 1 20 Enabled Disabled Auto Auto 1 21 Enabled Disabled Auto Auto 1 22 Enabled Disabled Auto Auto 1 23 Enabled Disabled Auto Auto 1 24 Enabled Disabled Auto Auto 1 25 Enabled Disabled Auto Auto 1 26 Enabled Disabled Auto Auto 1 Configuring Port Settings 61 Detail Use the Detail tab to display detailed port setting information for a por
85. nloaded the firmware use the Browse button to locate the file on your computer and then click OK Cancel 2 Click Browse to locate the backup file on your computer to restore the configuration settings displayed by your Web browser to to be able to see the file You may need to change the file type in the dialog box 3 Click OK to copy the configuration back to the Switch D For security purposes restoring the configuration does not change the password The file will be copied to the Switch and once this has completed the Switch will restart Although the upgrade process has been designed to preserve your Firmware Upgrade configuration settings 3Com recommends that you The Upgrade facility allows you to install on the Switch any new releases of system firmware that 3Com may make available Newer versions of firmware can be downloaded via HTTP and copied to the Switch the Switch will restart and apply the newer system firmware version make a backup of the configuration beforehand in case the upgrade process fails for any reason for example the connection between the computer and the Switch is lost while the new firmware is being copied to the Switch 40 Reset CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE A progress screen displays while the upgrade is taking place The upgrade procedure can take a few minutes and is complete when the progress bar has finished running and the Power LED ha
86. ntained between spanning tree compliant networked devices by m Disabling redundant paths when the main paths are operational m Enabling redundant paths if the main paths fail Spanning tree uses a distributed algorithm to select a bridging device that serves as the root of the spanning 52 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE tree network The bridging device known as the Root Summary Bridge generates bridge protocol data units BPDUs on all ports at a regular interval known as the Hello Time All other spanning tree compliant devices on the network have a designated Root Port This is the Port Figure 40 Spanning Tree Summary Screen nearest the Root Bridge and it is used for receiving the s EEE OT cCINSEEESEENNNNN BPDUs initiated by the Root Bridge If a bridge does not Use the Summary tab to display Status Edged Port Link Type Path Cost State or Port Priority for all the ports get a Hello BPDU after a predetermined interval the EE DU se ee Ee eee Ee vps DIM OTA i n i 1 Enabled 100000 Enabled Discarding Auto Point to Point 128 bridge assumes that the link to the Root Bridge is 2 Enabled 100000 Enabled Discarding Auto Pointto Point 128 down This bridge will then initiate negotiations with 3 Enabled 100000 Enabled Discarding Auto Point to Point 128 f P 4 Enabled 100000 Enabled Discarding Auto Point to Point
87. ommand Example Select menu option logout Password The Password command changes the user s password Syntax password Default Configuration This command has no default configuration User Guidelines The user needs to login to the session in order to change the password Example Select menu option password Old password Enter new password Retype password The command line interface password has been successfully changed Select menu option REGULATORY NOTICES FCC Statement This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a commerical environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference to radio communications in which case the user will be required to correct the interference at their own expense Information to the User If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures W
88. pagate information about VLAN groups used on this Switch to external devices you must specify a VLAN ID for each VLAN By default all ports belong to VLAN 1 as untagged members However they can belong to multiple VLANs as tagged members Also newly created VLANs will Fig re 31 Setup Sereen initially have no ports associated with them Setup EEE Modify Port Rename Remove Port Detail VLAN Detail Modify VLAN Create VLANs L ID s te i Example3 5 10 Use the Modify VLAN screen to change the VLAN to which a port belongs and configure the port to P Name communicate with all other VLANs or a selected VLAN Figure 32 Modify VLAN Screen Setup Modify VLAN S Rename Remove Pon Detail VLAN Detail Select VLAN to modity 1 v Select membership type o Oo Untagged Tagged NotAMember Not available for selection Available options on the Setup screen include m VLAN ID ID of configured VLAN 1 4094 no GateciNene leading zeroes NOTE You may set different membership types on multiple ports before applying For examples on setting up VLANs refer to n Sample e To remove a portin a Link aggregation please select all the ports in the group VLAN Configurations Untagged Member s Tagged Member s Port Port2 Ports Porta Pores A SCS r Port6 Port Port8 Port9 Porti0 CAUTION At least one port must always be an Poetis Portie Porti Portie Porti9 Port20 Port2
89. pport tools posted on the 3Com Web site at www 3com com 3Com Knowledgebase helps you troubleshoot 3Com products This query based interactive tool is located at http knowledgebase 3com com and contains thousands of technical solutions written by 3Com support engineers Access Software Downloads Software Updates are the bug fix maintenance releases for the version of software initially purchased with the product In order to access these Software 80 APPENDIX A OBTAINING SUPPORT FOR YOUR PRODUCT Updates you must first register your product on the 3Com Web site at http eSupport 3com com First time users will need to apply for a user name and password A link to software downloads can be found at http eSupport 3com com or under the Product Support heading at www 3com com Software Upgrades are the feature releases that follow the software version included with your original product In order to access upgrades and related documentation you must first purchase a service contract from 3Com or your reseller Telephone Technical Support and Repair To obtain telephone support as part of your warranty and other service benefits you must first register your product at http eSupport 3com com Warranty and other service benefits start from the date of purchase so it is important to register your product quickly to ensure you get full use of the warranty and other service benefits available to you
90. r Gigabit Ethernet over 9 125 micron core single mode fiber cable 1000BASE SX IEEE 802 3z specification for Gigabit Ethernet over two strands of 50 125 or 62 5 125 micron core multimode fiber cable 1000BASE T IEEE 802 3ab specification for Gigabit Ethernet over 100 ohm Category 5 5e or 6 twisted pair cable using all four wire pairs Auto negotiation Auto negotiation is where two devices sharing a link automatically configure to use the best common speed The order of preference best first is 1000BASE T full duplex 100BASE TX full duplex 100BASE TX half duplex 10BASE T full duplex and 10BASE T half duplex Auto negotiation is defined in the IEEE 802 3 standard for Ethernet and is an operation that takes place in a few milliseconds Auto negotiation must be enabled for the 1000BASE T ports to operate at 1000 Mbps full duplex Bandwidth The information capacity measured in bits per second that a channel can transmit The bandwidth of Ethernet is 10 Mbps the bandwidth of Fast Ethernet is 100 Mbps and Gigabit Ethernet is 1000 Mbps BPDU Bridge Protocol Data Unit A type of information packet that ensures that data is efficiently exchanged between Switches in a LAN BPDU messages detect loops in a network and remove them by shutting down the bridge causing the loop 102 GLOSSARY Category 3 Cables One of five grades of Twisted Pair TP cabling defined by the EIA TIA 568 standard Category 3 is voic
91. re Protocol RJ 45 A set of rules for communication between devices on a network The rules dictate format timing sequencing and error control A standard connector used to connect Ethernet networks The RJ stands for registered jack Server A computer in a network that is shared by multiple end stations Servers provide end stations with access to shared network services such as computer files and printer queues SFP Small Form Factor Pluggable SFP Connectors are based on an open standard that enables hot swapping of various type of fiber optic and copper based transceivers into the host equipment Subnet Address An extension of the IP addressing scheme that allows a site to use a single IP network address for multiple physical networks Subnet Mask A subnet mask which may be a part of the TCP IP information provided by your ISP is a set of four numbers configured like an IP address It is used to create IP address numbers used only within a particular network as opposed to valid IP address numbers recognized by the Internet which must assigned by InterNIC Subnets A network that is a component of a larger network 105 Switch A device that interconnects several LANs to form a single logical LAN that comprises of several LAN segments Switches are similar to bridges in that they connect LANs of a different type however they connect more LANs than a bridge and are generally more sophisti
92. reating 51 maximum supported 45 sample configurations 49 W Web interface accessing using the CLI 25 buttons 31 connecting 25 logging on 27 menu 28 navigating 28 requirements for accessing 25
93. rious failures and downtime in your network Ensure that the power input to your system is clean and free from sags and surges to avoid unforeseen network outages 3Com recommends that you install power conditioning especially in areas prone to blackout power dips and electrical storms The unit is intended to be grounded Ensure it is connected to earth ground during normal use Installing proper grounding helps to avoid damage from lightning and power surges Before powering on the Switch verify that the network cables and the power cable are securely connected CAUTION The Switch has no ON OFF switch The only AN way to power on and power off the Switch is by connecting and disconnecting the power cord This is called power cycling To power on the Switch 1 Plug the power cord into the power socket on the rear panel of the Switch Refer to 9 Power Socket on page 15 for more information 2 Plug the other end of the power cord into a power outlet When the Switch is powered on the Power LED lights up If the Power LED does not light up refer to 7 Power LED on page 15 for more information Checking for Correct Operation After you power on the Switch it automatically performs a power on self test POST During POST the Power LED on the front panel of the Switch flashes green When POST is complete the Power LED turns green If the Power LED turns yellow after POST it means that POST failed and the Sw
94. rk adapters select the adapter that connects the computer to the network or Switch click Next You will then be offered the choice of searching the same subnet that your PC is on for a connected switch default or specifying an IP range Note that specifying a large range may take some time for the search to complete Figure 13 The 3Com Switch Detect Search Screen Discovery Network Range Perform discovery on subnet Perform discovery on IP range From 192 Tor 192 168 Loewe 4 Once your Switch or Switches have been located you will be presented with a list Figure 14 Select the Switch to which you want to connect and click on Open Your default Web browser will open and con nect to the home page of the Switch Accessing the Switch using the 3Com Switch Detect Application 33 Figure 14 The 3Com Switch Detect Discovered Devices 3Com Detect v1 1 Please choose a Device to configure 3CBLSF26PWR 3Com Baseline Switch 2426 192 168 1 15 Select the keinem oaee oo N Paoa ari ea oon on to launch web browser for web management of selected device oo 34 CHAPTER 3 CONNECTING TO THE WEB INTERFACE 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE This chapter provides information on how to configure m Upgrade the firmware the Switch s advanced features Topics include m Device Summary Information Device Summary Information The Device Summary screen which a
95. roadcast 10000 25 Broadcast 10000 26 Broadcast 10000 55 56 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE Modify m Setup Use the Modify tab to set the Switch s broadcast storm m Port Setup control and threshold limits m Port Detail The settings include m OUI Summary m OUI Modify m Status Enables and disables broadcast storm control Summary m Packet Rate Threshold Sets the broadcast storm threshold 64 to 1000000 kilobits per second Use the Summary tab to display the Voice VLAN settings for all the ports Figure 45 Broadcast Storm Modify Screen 34 Figure 46 QoS VolP Summary Screen O Summary Setup Port Setup Port Detail OUI Summary OUI Modify Broadcast Storm Control Port Mode Security Voice Client Detected 1 None Disabled No Status Enabled v 2 None Disabled No 3 None Disabled No Packet Rate Threshold 64 1000000 10000 Kbits sec 4 None Disabled No 5 None Disabled No Note Packet threshold is ignored if Broadcast Storm Control is Disabled 5 A None Disabled No 7 None Disabled No 8 None Disabled No g None Disabled No ay 10 None Disabled No 11 None Disabled No 12 None Disabled No 13 None Disabled No 14 None Disabled No 16 None Disabled No 16 None Disabled No QoS VoIP Traffic Settings 17 None Disabled No
96. runs on Windows NT Server Ethernet A LAN specification developed jointly by Xerox Intel and Digital Equipment Corporation Ethernet networks use CSMA CD to transmit packets at a rate of 10 Mbps and 100 Mbps over a variety of cables Ethernet Address See MAC address Fast Ethernet An Ethernet system that is designed to operate at 100 Mbps Gigabit Ethernet An Ethernet system that is designed to operate at 1000 Mbps Full Duplex A system that allows packets to be transmitted and received at the same time and in effect doubles the potential throughput of a link Half Duplex IEEE A system that allows packets to be transmitted and received but not at the same time Half duplex is not supported for 1000 Mbps Contrast with full duplex Institute of Electrical and Electronics Engineers This American organization was founded in 1963 and sets standards for computers and communications IEEE 802 1D Specifies a general method for the operation of MAC bridges including the Spanning Tree Protocol IEEE 802 1Q VLAN Tagging Defines Ethernet frame tags which carry VLAN information It allows switches to assign endstations to different virtual LANs and defines a standard way for VLANs to communicate across switched networks IEEE 802 3ad A standard that defines link aggregation 802 3ad is now incorporated into the relevant sections of the IEEE Std 802 3 2002 IETF 103 Internet Engineering Task Forc
97. s operating sys tems 32 CHAPTER 3 CONNECTING TO THE WEB INTERFACE Running the 3Com Switch Detect Application The 3Com Baseline Switch CD ROM contains in addi tion to the documentation the 3Com Switch Detect Application To use 3Com Switch Detect to connect to the Web interface of your Switch do the following On the computer that is connected to your Switch either directly or on a network that is on the same sub net insert the CD ROM into its CD drive If you have autorun enabled you will be presented with a menu showing the contents of the CD ROM Select the 3Com Detect Application link to install the utility Follow the onscreen instructions If the auto run program does not start you should browse to your CD ROM drive go to the switch detect directory and double click on setup exe Follow the prompts that will take you through the installation pro cess Once installed the 3Com Switch Detect Application can be accessed from the Windows Start Programs list When the 3Com Detect application starts you will be see the Welcome Screen Figure 12 Figure 12 The 3Com Switch Detect Welcome Screen 3Com Detect v1 1 Welcome This application will help you to find and configure your 3Com product Please select the network interface that your product is connected to lintel R PRO 1000 MT Mobile Connection Packet Sid IP address of adapter 192 168 1 100 2 Ifthe computer has multiple netwo
98. s stopped flashing and is permanently green CAUTION Do not interrupt power to the Switch during the upgrade procedure If you do the firmware may be corrupted and the Switch may not start up properly afterwards To reset the Switch to factory default settings click Administration then Reset on the menu Reboot Clicking on Reboot will reset the Switch the equivalent of power cycling it No configuration settings will be lost Initialize keep IP setting Clicking on Initialize keep IP setting will return the Switch to the factory default configuration i e any configuration parameters you may have set up will be deleted However the IP address of the switch will not be altered meaning you will not have to go through the process of establishing what IP address the Switch has taken The Switch shall be reset b Initialize discard IP setting Clicking on nitialize discard IP setting will return the Switch to the factory default configuration including the IP address mode which shall be returned to DHCP enabled The Switch shall be reset Selecting any of the 3 options above will result in the Switch resetting During this period any users connected to the Switch will lose connectivity to the rest of the network System Access Click Administration then System Access on the menu A screen appears with four system access tabs m Summary m Setup m Modify m Remove To prevent unauthorized users from ac
99. sion list select the session to remove 2 Click Remove Cable Diagnostics The Switch provides a cable diagnostic utility which helps you detect and resolve issues with the attached cables The Cable Diagnostics menu includes two tabs m Summary m Diagnostics Summary Use the Summary tab to display information on Test Result Cable Fault Distance or Last Update for every port on the switch Figure 69 Cable Diagnostic Summary Screen Summary Diagnostics Port Test Result Cable Fault Distance Last Update 1 Failed 14 2001 1 1 4 33 47 2 Nottested yet 3 Nottested yet 4 Nottested yet 5 Not tested yet B Nottested yet 7 Not tested yet 8 Not tested yet 8 Nottested yet 10 Nottested yet 11 OK 0 0 2001 1 1 4 33 10 12 Nottested yet 13 Nottested yet 14 Nottested yet 15 Nottested yet 16 Nottested yet 17 Nottested yet 18 Nottested yet 19 Nottested yet 20 Nottested yet 21 Nottested yet 22 Nottested yet 23 Nottested yet 24 Nottested yet 25 Not supported 26 Not supported Note The pair number from the row of cable fault distance represents Tx and Rx The cable length unit is in meter and the pair number has a margin error less than 2 meters Diagnostics Use the Diagnostics tab to display individual port information on Test Result Cable Fault Distance in meters and Last Update Figure 70 C
100. ss has been assigned it will not revert back to the DHCP mode on subsequent re boots You will now know either the DHCP or manual IP address and you can now move on to using the Web interface Figure 7 CLI Summary with Assigned IP Address 3Com Baseline Switch 2226 SFP Plus 2426 PWR Plus 2250 SFP Plus HyperTerminal 38400 8 1 Logging On to the Web Interface Using the IP address you have obtained in the previous section enter this into the URL field of your preferred Web browser There is no need to add http before the Logging On to the Web Interface 27 IP address After the Web interface loads in your Web browser the first page that appears is the logon screen On this screen you need to enter the administration user name and password to gain access to the Web interface The browser s address bar also displays the IP address that the Switch is currently using Figure 8 Logon Dialog Box Web user login UserName admin Password 1 To log on to the Web interface In User name type admin 2 Leave the Password field blank 3 Click OK 28 CHAPTER 3 CONNECTING TO THE WEB INTERFACE Navigating the Web Interface The Web interface has been designed to enable you to easily perform advanced configuration tasks and view information about the Switch Menu The menu is located on the left side of the Web interface When you click an item on the menu the related screen
101. sword is invalid the following message appears and Login process restarts Incorrect Password Automatic Logout The user session is automatically terminated after 30 minutes in which no device configuration activity has occurred The following message is displayed Session closed by automatic logout Concurrent CLI Sessions The command line interface supports one CLI session CLI Commands This Command section contains the following commands a m Ping Summary m ipSetup m Upgrade a Initialize m Reboot m Logout m Password m The command displays a list of CLI commands on the device Syntax Default Configuration This command has no default configuration User Guidelines There are no user guidelines for this command Example The following displays the list presented for the command CLI Commands 93 Select menu option This command line console allows you to configure and manage your system by making selections from the displayed menu You can enter successive menu choices on the same line instead of pressing the Return key after each selection For example if you are at the top level menu and wish to display the system configuration enter system summary To specify a menu choice you need only type a unique abbreviation For example system summary can be abbreviated sy s To return to a previous menu type q To re
102. t Figure 55 Port Administration Detail Screen Port State Enabled PVID 1 Flow Control Disabled Link Type Hybrid Speed Auto 100 Duplex Auto Full Values in brackets indicate the current operating value for the chosen port Setup Use the Setup tab to configure the port settings The following options are available m Port State Enables and disables the port m Flow Control Enables and disables flow control on the port When flow control is enabled for the port the Switch regulates the packet flow so that a sending device does not transmit more packets than a receiving device can process If flow control is 62 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE disabled packets may be dropped under certain periods of high traffic Flow control is disabled by default m Speed Sets the speed mode of the port Available options include auto 10 100 and 1000 For 1000 Mbps connections see Speed Duplex for 1000 Mbps Connections below Auto or autonegotiation sets the optimum combination of speed and duplex that can be supported by both ends of the link m Duplex Sets the duplex mode of the port Available options include Auto Half and Full ports that will be connected to telephony and other time sensitive traffic as it may hamper the QoS performance CAUTION It is advised not to enable Flow Control on
103. t authenticates on the port the port is unlocked and other non authenticated hosts can send and receive data Mode Sets the authentication mode to one of the following options m Auto Requires a dot1x aware client to be authorized by the authentication server Clients that are not dot1x aware will be denied access m Force Authorized Forces the port to grant access to all clients either dot1x aware or otherwise m Force Unauthorized Forces the port to deny access to all clients either dot1x aware or otherwise Maximum Request Sets the maximum number of times the switch port will retransmit an EAP request packet to the client before it times out the authentication session Range 1 10 Default 2 Mode Reauthentication Sets the client to be re authenticated after the interval specified by the Re authentication Period Re authentication can be used to detect if a new device is plugged into a switch port Default Disabled m Max Count The maximum number of hosts that can connect to a port when the Multi Host operation mode is selected Range 1 1024 Default 5 m Reauthentication Period Sets the time period after which a connected client must be re authenticated Range 1 65535 seconds Default 3600 seconds m Quiet Period Sets the time that a switch port waits after the Max Request Count has been exceeded before attempting to acquire a new client Range 1 65535 seconds Defau
104. t type is not faulty and is inserted correctly If these checks do not identify the cause of the problem it may be that the unit or the device connected to the port is faulty Contact your supplier for further advice Physical Features 13 5 10 100BASE TX Duplex Status LEDs 3CBLSF26 and 3CBLSF26PWR Only The second and fourth row of LEDs which are colored yellow show the duplex status of the related ports Table 2 10 100BASE TX Duplex Status LEDs Status Meaning Yellow The link is operating in full duplex mode Off The link is operating in half duplex mode m The duplex status of the ports on 3CBLSF50 and 3CBLSF26 3CBLSF26PWR can also be monitored from the user interface 6 Gigabit Combo Port and Duplex Status LEDs Each Gigabit combo port has two status LEDs which indicate functions dependant upon whether a connection has been made to the fixed 1000BASE T port or if an SFP Module has been inserted 14 INTRODUCING THE BASELINE SWITCH 1000BASE T Mode Table 3 1000BASE T Link Activity Status LEDs Link Activity Meaning Green Yellow The link is operating at 1000 Mbps The link is operating at 10 or 100 Mbps Flashing Green Packets are being received or ransmitted on the port at 1000 Mbps Flashing Yellow Packets are being received or Off Table 4 ransmitted on the port at 10 or 100 bps The link has not been established nothing is connected to the port or
105. tats Multi cast Input 2 Multi cast Output 5682 Broadcast Input 177 Broadcast Output 3 Ether like Stats Alignment Errors 0 FCS Errors O Single Collision Frames 0 Multiple Collision Frames 0 SQE Test Errors 0 Deferred Transmissions 0 Late Collisions 0 Excessive Collisions 0 Internal Mac Transmit Errors 0 Internal Mac Receive Errors O Frames Too Long 0 Carrier Sense Errors 0 Symbol Errors 0 RMON Stats Drop Events 0 Octets 361336 Packets 3354 Broadcast PKTS 177 Multi cast PKTS 2 Undersize PKTS 0 Oversize PKTS 0 Fragments 0 Jabbers 0 CRC Align Errors 0 Collisions 0 Packet Size lt 64 Octets 2451 Packet Size 65 to 127 Octets 507 To display statistics for a port 1 Access the Web interface Click Port then Statistics on the menu The Port Statistics Screen appears 2 Select one port multiple ports or choose Select All and enter a refresh interval 3 Click Apply Click Select None to remove all ports statistics Click Clear All Counters to set all port statistic counters back to zero Security Using the Web interface you can configure the RADIUS Client and 802 1X settings The Security menu includes two items m RADIUS Client m 802 1X Settings RADIUS Client Remote Authentication Dial in User Service RADIUS is a logon authentication protocol that uses software running on a central server to control access to RADIUS aware devices on the networ
106. te with LA Light Blue LX ZX SFP Link detected i M the Switch the Switch will either obtain an IP address Light Gray Port has been setto inactive by User or r cod uis Fall ness from a DHCP server default operation or if this is not r3 Bl pese Pornos been selected by user successful will allocate itself an IP address You can use E Bl ione nas ateg POST ormosue is not the console interface or the 3Com Switch Detect recognized 1 A application with certain limitations to see what IP Description of port number address the Switch will use Underline Aggregation number Automatic IP Configuration m 7 When you power on the Switch for the first time it will Administration Settings for a period of approximately 2 minutes automatically request an IP address from a DHCP server This is referred to as auto mode If at the end of this period The Administration menu includes eight administration items there has been no response from the DHCP server if m IP Setup one is present in the network it will allocate itself an m Backup amp Restore Auto IP address m Firmware Upgrade The Switch will use the default IP address 169 254 x y m Reset where x and y are the last two bytes of its MAC address m System Access 38 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE assigns to itself during auto IP configuration refer to the label on the top cover of the Switch This label contains the MA
107. to the LEDs on the front panel of the Switch For information on basic LED checks refer to the following topics in Chapter 1 m 2 Gigabit Combo Ports RJ 45 SFP m 4 10 100BASE TX Link Activity Status LEDs m 7 Power LED A link is connected but the Link Activity LED for the port is off There is a problem with this connection Verify that m The device being connected to is powered on and operating correctly m The cable is connected at both ends m The cable is not damaged m Ifthe connection is to a workstation that the work station s network interface is installed and config ured correctly m The correct category of cable is being used for the required link speed Category 3 cables can be used for TOBASE T operation only Category 5 cable is required for 100BASE TX or 1000BASE T 3Com rec ommends Category 5e or 6 cables for 1000BASE T operation A fiber cable is connected but the Module Active LED is off Verify that m The fiber cable is in good condition m The SFP module is correctly inserted m A3Com SFP module is being used Refer to Approved SFP Transceivers on page 22 for details m The equipment at the far end is installed and cor rectly configured The Link Activity LED is on but network performance is poor The Switch supports full duplex autonegotiation If the connected device does not support autonegotiation ensure that it is configured for half duplex operation only
108. to those ports containing multicast group hosts or multicast routers switches instead of flooding traffic to all ports in the subnet VLAN Choose Enabled or Disabled from the IGMP Snooping Mode drop down menu Figure 43 IGMP Snooping amp Query Setup Screen IGMP Snooping Mode Enabled v IGMP Query Mode Disabled v Broadcast Storm A broadcast storm occurs when an incorrect packet is sent out on a network causing most hosts to respond all at once and typically with wrong answers that start the process over again Broadcast storms use substantial network bandwidth and may cause network time outs Two tabs are available on the Broadcast Storm page m Summary m Modify Summary Use the Summary tab to display the broadcast mode and rate for all the ports Configuring VLANs Figure 44 Broadcast Storm Summary Screen Summary Port Broadcast Mode Broadcast Rate Threshold Kbits sec 1 Broadcast 10000 2 Broadcast 10000 3 Broadcast 10000 4 Broadcast 10000 5 Broadcast 10000 6 Broadcast 10000 T Broadcast 10000 8 Broadcast 10000 9 Broadcast 10000 10 Broadcast 10000 11 Broadcast 10000 12 Broadcast 10000 13 Broadcast 10000 14 Broadcast 10000 15 Broadcast 10000 18 Broadcast 10000 17 Broadcast 10000 18 Broadcast 10000 19 Broadcast 10000 20 Broadcast 10000 21 Broadcast 10000 22 Broadcast 10000 23 Broadcast 10000 24 B
109. turn to the top level menu or abort an action press the Esc key Enter CR to continue Menu options 3Com Baseline Switch 2426 PWR Plus Displays Help information initialize Reset the device to factory default except IP ipSetup Configures IP address logout Logout from this session ping Ping a remote station password Change password reboot Power cycles the device summary Summarises IP setup and software versions upgrade Software upgrade over TFTP Type for help mEETTOTTenceR T 3Com Baseli 1 Select menu option 94 Ping APPENDIX D 3COM CLI REFERENCE GUIDE The Ping command sends ICMP echo request packets to another node on the network Syntax ping P address URL hostname Parameters wm P Address IP address to ping m URL URL address to ping w hostname hostname to ping Range 1 158 characters Default Configuration This command has no default configuration User Guidelines There are no user guidelines for this command Example The following displays the result of a Ping command Select menu option ping 192 168 1 9 Starting ping resolution of displayed time is 10 milli seconds Response from 192 168 1 9 TTL 128 time 20ms Select menu option Summary The Summary command displays the current IP configuration and software versions running on the device
110. undant paths if the main paths fail Spanning tree uses a distributed algorithm to select a bridging device that serves as the root of the spanning tree network The bridging device known as the Root Bridge generates BPDUs Bridge Protocol Data Units on all ports at a regular interval known as the Hello Time All other spanning tree compliant devices on the network have a designated Root Port This is the Port nearest the Root Bridge and it is used for receiving the BPDUS initiated by the Root Bridge If a bridge does not get a Hello BPDU after a predetermined interval the bridge assumes that the link to the Root Bridge is down This bridge will then initiate negotiations with other bridges to reconfigure the network to re establish a valid network topology After all the bridges on the network have determined the configuration of their ports each bridge only forwards traffic between the Root Port and the ports that are the Designated Bridge Ports for each network segment All other ports are blocked which means that they are prevented from forwarding traffic Use the Port Setup tab to configure the spanning tree settings for each port The following options are available 54 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE m Status Enables and disables spanning tree for the port m Edged Port Enables and disables edged port for the port m Link Type Choose between Point to Point Shared or Auto for
111. utomatically loads after you log on to the Web interface provides a m Administration Settings m Configuring VLANs m Configuring Port Settings snapshot of the Switch s basic settings and versions of m Securit current components m Monitoring Click Device Summary on the menu A screen appears with three tabs that include z s m Device View Configuration Overview The Switch is shipped ready for use If you only want the Switch to function as a basic Layer 2 switch you do not need to access the Web interface and configure the Switch m Polling Interval m Color Key You only need to access the Web interface if you want to m Setthe administration password to the Web interface m Assign an IP address to the Switch m Configure the Switch s advanced features 36 Device View CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE Device View Contains fields that display the system switch and management information to identify the Switch The fields include Product Description System Location System Contact Serial Number Product 3C Number MAC Address Software Version Unit Uptime Bootroom Version and Hardware Version Figure 15 Device View Polling Interval ColorKey E mo PAPARA Poll Now Device Information Product Description 3Com Baseline Switch 2426 PWR Plus System Name Baseline
112. y supply the required DC power up to a maximum of 29 6 W measured at the PD assuming 100 m Cat 5E cable connected between the PD and the Switch 2426 PWR subject to power being available from the overall power budget 2 Gigabit Combo Ports RJ 45 SFP The Gigabit combo ports RJ 45 Small Form Factor Pluggable SFP ports are numbered 25 and 26 on 3CBLSF26 and 3CBLSF26PWR 49 and 50 on 3CBLSF50 If the link connection on the SFP port is active the associated RJ 45 port of the same number is disabled The two SFP ports support fiber Gigabit Ethernet short wave SX 3CSFP91 and long wave LX 3CSFP92 SFP transceivers in any combination This offers you the flexibility of using SFP transceivers to provide connectivity between the Switch and remote 1000 Mbps workgroups or to create a high capacity aggregated link backbone connection The default active port is the SFP port The selection of active ports can be configured via the Web interface The SFP port supports full duplex mode only SEP ports are numbered 25 and 26 on 3CBLSF26 and 3CBLSF26PWR 49 and 50 on 3CBLSF50 When an SFP port is active it has priority over the 10 100 1000 port of the same number The corresponding 10 100 1000 port is disabled when an SFP link connection is active 3 Console Port The console port allows out of band access to the Switch s built in Command Line Interface CLI that you can use to reset the Switch to factory defaults change th
113. zed Single Host 2 5 80 30 14 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 80 15 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 0 16 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 0 17 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 80 18 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 80 30 19 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 60 30 20 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 80 30 21 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 80 30 22 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 60 30 23 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 80 24 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 80 25 Unauthorized Disabled 3600 Force Authorized Single Host 2 5 0 26 Unauthorzed Disabled 3600 Force Authorized Single Host 2 5 80 Setup Use the Setup tab to configure the 802 1X authenticaion settings The following fields are available m System Authentication Sets the global setting for 802 1X Default Disabled Operation Mode Allows single or multiple hosts clients to connect to an 802 1X authorized port Options Single Host Multi Host Default Single Host m Single Host Only one host may authenticate and pass traffic on a port a Multi Host If at least one hos

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