Cisco Catalyst 2950C-24
Contents
1. 25 to 70 C e Operating relative humidity 10 to 85 percent noncondensing Operating altitude Up to 10 000 ft 3000 m e Storage altitude Up to 15 000 ft 4500 m e Not intended for use on top of desktops or in open office environments e Power consumption 30W maximum 102 BTUs per hour Cisco Catalyst 2950T 24 2950C 24 2950G 12 and 2950G 24 e Power consumption 45W maximum 154 BTUs per hour Cisco Catalyst 2950G 48 e AC input voltage 100 to 127 200 to 240 VAC autoranging e AC input frequency 47 to 63 Hz e DC input voltages for Cisco RPS 675 12V 4 5A e ISO 7779 bystander position operating to an ambient temperature of 30 C e WS C2950 24 WS C2950 12 WS C2950C 24 and WS C2950T 24 46 dBa e WS C2950G 12 WS C2950G 24 46 dBa e WS C2950G 48 48 dBa e 482 776 hours Cisco Catalyst 2950G 12 e 475 184 hours Cisco Catalyst 2950G 24 e 479 086 hours Cisco Catalyst 2950G 24 DC e 256 446 hours Cisco Catalyst 2950G 48 e 574 284 hours Cisco Catalyst 2950T 24 e 477 080 hours Cisco Catalyst 2950C 24 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 14 of 18 Feature Fiber Port Specifications for Cisco Catalyst 2950C 24 Switch Description Fiber port power levels e Optical transmitter wavelength 1300 nm Optical receiver sensibility 33 5 to 11 8 decibel milliwatt dBm e Optical2. e Enables proactive or expedited issue resolution e Lowers cost of ownership by using Cisco expertise and knowledge e Minimizes network downtime 24 LRE ports two fixed 10 100 1000BASE T ports and two SFP ports Eight LRE ports two fixed 10 100 1000BASE T ports and two SFP ports Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 16 of 18 Corporate Headquarters Cisco Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA www cisco com Tel 408 526 4000 European Headquarters Cisco Systems International BV Haarlerbergpark Haarlerbergweg 13 19 1101 CH Amsterdam The Netherlands www europe cisco com Tel 31 0 20 357 1000 Cisco SYSTEMS Americas Headquarters Cisco Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA www cisco com Tel 408 526 7660 Fax 408 527 0883 Asia Pacific Headquarters Cisco Systems Inc 168 Robinson Road 28 01 Capital Tower Singapore 068912 www cisco com Tel 65 6317 7777 Fax 65 6317 7799 800 553 NETS 6387 Fax 408 526 4100 Fax 31 0 20 357 1100 Cisco Systems has more than 200 offices in the following countries and regions Addresses phone numbers and fax numbers are listed on the Cisco Web site at www cisco com go offices Argentina Australia Austria Belgium Brazil Bulgaria Canada Chile China PRC Colombia Costa Rica Croatia Cyprus Czech Repub
3. other switches for rapid network deployments Bandwidth graphs and link reports provide useful diagnostic information and the topology map gives network administrators a quick view of the network status Cisco Network Assistant supports a wide range of Cisco Catalyst intelligent switches from Cisco Catalyst 2950 through Cisco Catalyst 4506 Through a user friendly GUI users can configure and manage a wide array of switch functions and start the device manager of Cisco routers and Cisco wireless access points The Cisco Network Assistant Software Guide Mode leads the user step by step through the configuration of advanced features and provides enhanced online help for context sensitive assistance Cisco AVVID Architecture for Voice Video and Integrated Data Wizards provide automated configuration of the switch to optimally support video streaming or video conferencing voice over IP VoIP and mission critical applications In addition Smartports offers a set of verified feature macros per connection type in an easy to apply manner With these macros users can consistently and reliably configure essential security availability quality of service and manageability features recommended for Cisco Business Ready Campus solutions with minimal effort and expertise These Wizards and Smartports can save hours of time for network administrators eliminate human errors and ensure that the configuration of the switch is optimized for these applications
4. switch Cisco Catalyst 2950 Series switches support four egress outgoing port queues per port which allows the network administrator to be more discriminating and specific in assigning priorities for the various applications on the LAN At the egress level the switch performs scheduling which is an algorithm process that determines the order in which the queues are processed The switches support Weighted Round Robin WRR scheduling or strict priority scheduling The WRR scheduling algorithm ensures that lower priority packets are not entirely starved for bandwidth and are serviced without compromising the priority settings administered by the network manager Strict priority scheduling ensures that the highest priority packets will always get serviced ahead of all other traffic and that the other three queues will be serviced using WRR best effort These features allow network administrators to prioritize mission critical and or bandwidth intensive traffic such as enterprise resource planning ERP Oracle SAP and so on voice IP telephony traffic and CAD CAM over less time sensitive applications such as FTP or e mail Simple Mail Transport Protocol SMTP For example it would be highly undesirable to have a large file download destined to one port on a wiring closet switch and have quality implications such as increased latency in voice traffic destined to another port on this switch This condition is avoided by ensuring that voice traf
5. transmitter power 20 dBm to 14 dBm Regulatory Agency Approvals Safety Certifications Electromagnetic Emissions Certifications e UL 1950 CSA 22 2 No 950 e TEC 950 EN 60950 e AS NZS 3260 TSOO1 e CE Marking e FCC Part 15 Class A e EN 55022 1998 Class A CISPR22 Class A e EN 55024 1998 CISPR24 e VCCI Class A e AS NZS 3548 Class A e CE Marking e CNS 13438 e BSMI Class A e MIC Network e Bellcore Equipment e GR 1089 CORE Building e GR 63 CORE Standards SR 3580 Level 3 NEBS for WS C2950G 24 EI DC only Warranty e Limited lifetime warranty SERVICE AND SUPPORT The services and support programs described in the following table are available as part of the Cisco Desktop Switching Service and Support solution and are available directly from Cisco and through resellers Service and Support Features Advanced Services Total Implementation Solutions TIS e Project management available direct from Cisco Packaged Total Implementation Solutions Packaged TIS available through resellers e Installation text and cutover e Training e Major MAC e Design review and product staging 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 15 of 18 e Site survey configuration deployment Benefits e Supplements existing staff e Ensures that functions meet client needs e Mitigates ris
6. trunk configuration across all ports on the switch Port Aggregation Protocol PAgP automates the creation of Cisco Fast EtherChannel or Gigabit EtherChannel groups enabling linking to another switch router or server Link Aggregation Control Protocol LACP allows the creation of Ethernet channeling with devices that conform to IEEE 802 3ad This is similar to Cisco s EtherChannel and PAgP IEEE 802 3z compliant 1OOOBASE SX 1000BASE LX LH 1000BASE ZX and 1000BASE T physical interface support through a field replaceable GBIC module provides customers with unprecedented flexibility in switch deployment The default configuration stored in Flash helps to ensure that the switch can be quickly connected to the network and can pass traffic with minimal user intervention The switches support nonstandard Ethernet frame sizes mini giants up to 1542 bytes configurations with GBIC ports only 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 10 of 18 PRODUCT SPECIFICATIONS Feature Performance Management Description 13 6 Gbps switching fabric Catalyst 2950G 48 8 8 Gbps switching fabric Catalyst 2950G 24 2950G 24 DC 2950T 24 2950C 24 2950G 12 Cisco Catalyst 2950G 48 13 6 Gbps maximum forwarding bandwidth Cisco Catalyst 2950G 24 8 8 Gbps maximum forwarding bandwidth Cisco Catalyst 2950G 24 DC 8 8 Gb
7. 000BASE CWDM GBIC 1610nm e RMON I and II standards e SNMPv1 SNMPv2c SNMPv3 planned future support for v3 e Y2K compliant e 10BASE T ports RJ 45 connectors two pair Category 3 4 or 5 unshielded twisted pair UTP cabling e 100BASE TX ports RJ 45 connectors two pair Category 5 UTP cabling e 1000BASE T ports RJ 45 connectors four pair Category 5 UTP cabling e 100BASE FX ports MT RJ connectors 50 125 or 62 5 125 micron multimode fiber optic cabling e 1000BASE T 1000BASE SX LX LH ZX GBIC based ports SC fiber connectors single mode or multimode fiber e Cisco GigaStack GBIC ports copper based Cisco GigaStack cabling e Management console port 8 pin RJ 45 connector RJ 45 to RJ 45 rollover cable with RJ 45 to DB9 adapter for PC connections for terminal connections use RJ 45 to DB25 female data terminal equipment DTE adapter can be ordered separately from Cisco part number ACS DSBUAS YN Type of cable Cisco part number e j meter MT RJ to SC multimode cable CAB MTRJ SC MM 1M e 3 meter MT RJ to SC multimode cable CAB MTRJ SC MM 3M e 5 meter MT RJ to SC multimode cable CAB MTRJ SC MM 5M e 1 meter MT RJ to ST multimode cable CAB MTRJ ST MM 1M e 3 meter MT RJ to ST multimode cable CAB MTRJ ST MM 3M e 5 meter MT RJ to ST multimode cable CAB MTRJ ST MM 5M 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com P
8. Cisco SYSTEMS DATA SHEET CISCO CATALYST 2950 SERIES SWITCHES WITH ENHANCED IMAGE SOFTWARE PRODUCT OVERVIEW Cisco Catalyst 2950 Series switches are fixed configuration models that provide wire speed Fast Ethernet and Gigabit Ethernet connectivity for small and medium sized networks The Cisco Catalyst 2950 Series is an affordable product line that brings intelligent services such as enhanced security high availability and advanced quality of service QoS to the network edge while maintaining the simplicity of traditional LAN switching Embedded in all Cisco Catalyst 2950 Series switches is the Cisco Device Manager software which allows users to easily configure and monitor the switch using a standard Web browser eliminating the need for more complex terminal emulation programs and knowledge of the command line interface CLI Customers can easily initialize the switch with web based Cisco Express Setup without using the CLI In addition with Cisco Network Assistant a standalone network management software customers can simultaneously configure and troubleshoot multiple Cisco Catalyst desktop switches Cisco Device Manager Cisco Express Setup and Cisco Network Assistant reduce the cost of deployment by enabling less skilled personnel to set up switches quickly Furthermore Cisco Catalyst 2950 Series switches provide extensive management tools using Simple Network Management Protocol SNMP network management platforms such as Cis
9. Cisco Systems Inc can be found on cisco com Page 6 of 18 Feature Security Network Security Features Benefit Filtering of incoming traffic flows based on Layer 2 Layer 3 or Layer 4 access control parameters ACPs prevents unauthorized data flows The following Layer 2 ACPs or a combination can be used for security classification of incoming packets source Media Access Control MAC address destination MAC address and 16 bit Ethertype The following Layer 3 and Layer 4 fields or a combination can be used for security classification of incoming packets source destination IP address TCP source destination port number User Datagram Protocol UDP source or destination port number ACLs can also be applied to filter based on DSCP values Time based ACLs allow configuration of differentiated services based on time periods Private VLAN edge provides security and isolation between ports on a switch ensuring that voice traffic travels directly from its entry point to the aggregation device through a virtual path and cannot be directed to a different port Support for the IEEE 802 1x standard allows users to be authenticated regardless of which LAN port they are accessing and provides unique benefits to customers who have a large base of mobile wireless users accessing the network IEEE 802 1x with VLAN assignment allows a dynamic VLAN assignment for a specific user regardless of where the user is connected IEEE 802 1x with voice
10. In addition to Cisco Network Assistant Software Cisco Catalyst 2950 Series switches provide extensive management tools using Simple Network Management Protocol SNMP network management platforms such as CiscoWorks Managed with CiscoWorks Cisco Catalyst switches can be configured and managed to deliver end to end device VLAN traffic and policy management Coupled with CiscoWorks Cisco Resource Manager 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 5 of 18 Essentials a Web based management tool offers automated inventory collection software deployment easy tracking of network changes views into device availability and quick isolation of error conditions PRODUCT FEATURES AND BENEFITS Benefit Feature Availability Superior Redundancy for Fault Backup Integrated Cisco IOS Software Features for Bandwidth Optimization IEEE 802 1D Spanning Tree Protocol support for redundant backbone connections and loop free networks simplifies network configuration and improves fault tolerance Support for Cisco Spanning Tree Protocol enhancements such as UplinkFast BackboneFast and PortFast technologies helps to ensure quick fail over recovery enhancing overall network stability and availability IEEE 802 1w Rapid Spanning Tree Protocol RSTP provides rapid convergence of the spanning tree independent of spanning tree time
11. VLAN to permit an IP phone access to the voice VLANirrespective of the authorized or unauthorized state of the port IEEE 802 1x with port security for authenticating the port and managing network access for all MAC addresses including that of the client IEEE 802 1x with Guest VLAN allows guests without 802 1x clients to have limited network access on the Guest VLAN SSHv2 and SNMPv3 provide network security by encrypting administrator traffic during Telnet and SNMP sessions SSHv 2 and the crypto version of SNMPv3 require a special crypto software image due to US export restrictions Port Security and unicast MAC filtering secures the access to a port based on MAC addresses The aging feature of port security removes the MAC address from the switch after a specific timeframe to allow another device to connect to the same port Unicast MAC filtering allows non IP packets to be filtered as well With unknown unicast multicast port blocking the switch will not flood packets with unknown destination MAC addresses to all Ethernet ports Unknown unicast multicast port blocking disables flooding on a per port basis Catalyst 2950G24 2950G48 2950G12 2950G24DC only MAC Address Notification allows administrators to be notified of new users added or removed from the network Spanning tree root guard STRG prevents edge devices not in the network administrator s control from becoming Spanning Tree Protocol root nodes The Spanning Tree Protocol PortFast
12. age 13 of 18 Feature Power Connectors Indicators Environmental Ranges Power Requirements Acoustic Noise Predicted Mean Time Between Failure MTBF Description Customers can provide power to a switch by using the internal power supply the Cisco RPS 675 The connectors are located at the back of the switch o Internal Power Supply Connector The internal power supply is an autoranging unit The internal power supply supports input voltages between 100 and 240 VAC Use the supplied AC power cord to connect the AC power connector to an AC power outlet e Cisco RPS 675 Connector The connector offers connection for an optional Cisco RPS 675 that uses AC input and supplies DC output to the switch The connector offers a 675 watt redundant power system that supports one of up to six external network devices and provides power to one failed device at a time The connector automatically senses when the internal power supply of a connected device fails and provides power to the failed device preventing loss of network traffic Attach only the Cisco RPS 675 model PWR675 AC RPS NI to the redundant power supply receptacle with this connector e Per port status LEDs link integrity disabled activity speed and full duplex indications e System status LEDs system RPS and bandwidth utilization indications e Operating temperature 32 to 113 F 0 to 45 C e Storage temperature 13 to 158 F
13. ast VLAN Network Management Customers can configure one switch at a time with the embedded Cisco Device Manager or configure and troubleshoot multiple switches with Cisco Network Assistant a standalone network management software application optimized for LANs of small and medium sized businesses with up to 250 users Cisco Device Manager offers a simple and intuitive GUI interface for configuring and monitoring the switch The software is Web based and embedded in Cisco Catalyst 3750 3650 3550 2970 2950 and 2940 Switches Cisco Express Setup simplifies the switch initialization Users now have the option to set up the switch through a Web browser eliminating the need for more complex terminal emulation programs and knowledge of the CLI Cisco Device Manager and Cisco Express Setup reduce the cost of deployment by enabling less skilled personnel to quickly and simply set up switches Cisco Network Assistant Software provides an integrated management interface for delivering intelligent services such as multilayer switching QoS multicast and security ACLs Cisco Network Assistant Software allows administrators to take advantage of benefits formerly reserved for only the most advanced networks without having to learn the CLI or even the details of the technology With Cisco Network Assistant customers can configure multiple ports and switches simultaneously perform software updates across multiple switches at once and copy configurations to
14. bridge protocol data unit BPDU guard feature disables access ports with SpanningTree Protocol PortFastenabled upon reception of a BPDU and increases network reliability manageability and security Multilevel security on console access prevents unauthorized users from altering the switch configuration TACACS and RADIUS authentication enable centralized control of the switch and restrict unauthorized users from altering the configuration The user selectable address learning mode simplifies configuration and enhances security Trusted Boundary provides the ability to trust the QoS priority settings if an IP phone is present and to disable the trust settings in the event that the IP phone is removed This prevents a rogue user from overriding prioritization policies in the network IGMP Filtering provides multicast authentication by filtering out nonsubscribers and limits the number of concurrent multicast streams available per port 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 7 of 18 Feature Benefit Support for dynamic VLAN assignment through implementation of VLAN Membership Policy Server VMPS client provides flexibility in assigning ports to VLANs Dynamic VLAN enables fast assignment of IP address SPAN support of Intrusion Detection Systems IDSs to monitor repel and report network security violations Cisco Netw
15. cation of network errors and alarm thresholds 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 9 of 18 Feature Support for CiscoWorks Ease of Use and Ease of Deployment Benefit Manageable through CiscoWorks network management software on a per port and per switch basis providing a common management interface for Cisco routers switches and hubs Simple Network Management Protocol SNMP v1 v2 and v3 noncryptographic and Telnet interface support delivers comprehensive in band management and a CLI based management console provides detailed out of band management Cisco Discovery Protocol Versions 1 and 2 enable a CiscoWorks network management station to automatically discover the switch in a network topology Supported by the CiscoWorks 2000 LAN Management Solution Cisco Device Manager is an embedded web based software that allows the customer to easily configure and troubleshoot the switch eliminating the need for more complex terminal emulation programs and CLI knowledge and reducing the cost of deployment by enabling less skilled personnel to quickly and simply set up switches Cisco Express Setup allows the customer to quickly and easily initialize a switch with a web browser Smartports offers a set of verified feature macros per connection type in an easy to apply manner With these macros users can consiste
16. coWorks This product line offers two distinct sets of software features and several configurations to allow small medium sized and enterprise branch offices to select the right combination for the network edge Cisco Standard Image software offers Cisco IOS Software capabilities for basic data voice and video services For networks that require additional security advanced QoS and high availability Cisco Enhanced Image software delivers intelligent services such as rate limiting QoS reclassifying and security filtering for deployment at the network edge Cisco Catalyst 2950 Series switches consist of the following devices which are only available with Enhanced Image software for the Cisco Catalyst 2950 Series e Cisco Catalyst 2950G 48 48 10 100 ports and 2 Gigabit Interface Converter GBIC based Gigabit Ethernet ports e Cisco Catalyst 2950G 24 24 10 100 ports and 2 GBIC ports Cisco Catalyst 2950G 24 DC 24 10 100 ports 2 GBIC ports DC power Cisco Catalyst 2950G 12 12 10 100 ports and 2 GBIC ports Cisco Catalyst 2950T 24 24 10 100 ports and 2 fixed 10 100 1000BASE T uplink ports Cisco Catalyst 2950C 24 24 10 100 ports and 2 fixed 1OOBASE FX uplink ports All contents are Copyright 1992 2004 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 1 of 2 Figure 1 Cisco Catalyst 2950 Series Switches This complete set of switches offers network managers flexibility when selecting a m
17. cription CISCO STACKMAKER MIB CISCO STP EXTENSIONS MIB CISCO SYSLOG MIB CISCO TC CISCO TCP MIB CISCO VLAN MEMBERSHIP MIB CISCO VTP MIB ENTITY MIB IANAifType MIB IF MIB RFC 1573 OLD CISCO CHASSIS MIB OLD CISCO CPU MIB OLD CISCO INTERFACES MIB OLD CISCO IP MIB OLD CISCO MEMORY MIB OLD CISCO SYSTEM MIB OLD CISCO TCP MIB OLD CISCO TS MIB RFC1213 MIB MIB II RFC1398 MIB ETHERNET MIB RMON MIB RFC 1757 RS 232 MIB SNMPv2 MIB SNMPv2 SMI SNMPv2 TC TCP MIB UDP MIB TEEE 802 1x support IEEE 802 1w IEEE 802 1s IEEE 802 3x full duplex on 1OBASE T 10OBASE TX and 1000BASE T ports IEEE 802 1D Spanning Tree Protocol IEEE 802 1p class of service CoS prioritization IEEE 802 1Q VLAN IEEE 802 3 10BASE T specification IEEE 802 3u 1OOBASE TX specification IEEE 802 3ab 1000BASE T specification IEEE 802 3ad IEEE 802 3z 1000BASE X specification 1000BASE X GBIC 1000BASE T GBIC 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 12 of 18 Feature Y2K Connectors and Cabling MT RJ Patch Cables for the Cisco Catalyst 2950C 24 Switch Description e 1000BASE SX e 1000BASE LX LH e 1000BASE ZX e 1000BASE CWDM GBIC 1470nm e 1000BASE CWDM GBIC 1490nm e 1000BASE CWDM GBIC 1510nm e 1000BASE CWDM GBIC 1530nm e 1000BASE CWDM GBIC 1550nm e 1000BASE CWDM GBIC 1570nm e 1000BASE CWDM GBIC 1590nm e 1
18. er 3 and Layer 4 fields or a combination can be used to classify incoming packets to define QoS flows source destination IP address TCP source destination port number or UDP source destination port number Support for metering and policing of incoming packets restricts incoming traffic flows to a certain rate The switches support up to six policers per Fast Ethernet port and 60 policers on a Gigabit Ethernet port The switches offer granularity of traffic flows at 1 Mbps on Fast Ethernet ports and 8 Mbps on Gigabit Ethernet ports The switches support marking and remarking packets based on the state of policers and meters The switches support marking and remarking based on the following mappings from DiffServ Code Point DSCP to 802 1p and 802 1p to DSCP The switches support 14 well known and widely used DSCP values The switches support classifying or reclassifying packets based on default DSCP per port They also support classification based on DSCP values in the ACL The switches support classifying or reclassifying frames based on default 802 1p value per port The switches support 802 1p override at ingress Four queues per egress port are supported in hardware The WRR queuing algorithm ensures that low priority queues are not starved Strict priority queue configuration via Strict Priority Scheduling ensures that time sensitive applications such as voice always follow an expedited path through the switch fabric The swi
19. ers to extend intelligent services over traditional wiring Category 1 2 3 to distances up to 5000 feet Cisco is the only company with the breadth of technologies that allows customers to 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 2 of 18 deliver intelligent network services across any combination of wired and wireless infrastructures Refer to the Cisco Catalyst 2950 LRE Series Data Sheet for more information INTELLIGENCE IN THE NETWORK Networks of today are evolving to address four new developments at the network edge e Increase in desktop computing power e Introduction of bandwidth intensive applications e Expansion of highly sensitive data on the network e Presence of multiple device types such as IP phones and LAN access points These new demands are contending for resources with many existing mission critical applications As a result IT professionals must view the edge of the network as critical to effectively manage the delivery of information and applications As companies increasingly rely on the network as the strategic business infrastructure it is more important than ever to ensure their high availability security scalability and control By adding Cisco intelligent functions to the wiring closet customers can now deploy network wide intelligent services that address these requirements in a consisten
20. ess resolution with user defined device names Trivial File Transfer Protocol TFTP reduces the cost of administering software upgrades by downloading from a centralized location Network Timing Protocol NTP provides an accurate and consistent time stamp to all switches within the intranet Layer 2 traceroute eases troubleshooting by identifying the physical path that a packet takes from the source device to a destination device Crash information support enables switches to generate a crash file for improved troubleshooting Show interface capabilities provide information on configuration capabilities of any interface RTTMON MIB allows users to monitor network performance between a Cisco Catalyst switch and a remote device Multifunction LEDs per port for port status half duplex full duplex 1OBASE T 100BASE TX 1000BASE T indication as well as switch level status LEDs for system redundant power supply and bandwidth utilization provide a comprehensive and convenient visual management system Cisco Network Assistant Software is a free standalone network management application software that simplifies the administration of networks of up to 250 users It supports a wide range of Cisco Catalyst intelligent switches from Cisco Catalyst 2950 through Cisco Catalyst 4506 With Cisco Network Assistant users can manage Cisco Catalyst switches plus launch the device managers of Cisco integrated services routers ISRs and Cisco Aironet WLAN acces
21. fic is properly classified and prioritized throughout the network Other applications such as Web browsing can be treated as low priority and handled on a best effort basis Cisco Catalyst 2950 Series switches are capable of allocating bandwidth based on several criteria including MAC source destination address IP source destination address and TCP UDP port number Bandwidth allocation is essential in network environments requiring service level agreements or when it is necessary for the network manager to control the bandwidth given to certain users Cisco Catalyst 2950 Series switches support up to six policers per Fast Ethernet port and up to 60 policers on a Gigabit Ethernet port This gives the network administrator granular control of LAN bandwidth Network Availability To provide efficient use of resources for bandwidth intensive applications like multicasts Cisco Catalyst 2950 Series Intelligent Ethernet Switches support Internet Group Management Protocol Version 3 IGMPv3 snooping in hardware Through the support and configuration of IGMP snooping 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 4 of 18 through Cisco Network Assistant Software Cisco Catalyst 2950 Series switches deliver outstanding performance and ease of use in administering and managing multicast applications on the LAN The IGMPv3 snooping feature al
22. igration path to Gigabit Ethernet The two built in Gigabit Ethernet ports on the Cisco Catalyst 2950G 12 2950G 24 and 2950G 48 accommodate several GBIC transceivers including the Cisco GigaStack 1000BASE SX 1000BASE LX LH 1000BASE ZX 1000BASE T and coarse wavelength division multiplexing CWDM GBICs The dual GBIC based Gigabit Ethernet implementation provides customers with tremendous deployment flexibility giving them increased availability with redundant uplinks In sum the configuration permits customers to implement one type of stacking and uplink configuration today while preserving the option to migrate to another configuration in the future High levels of stack resiliency can also be implemented by deploying dual redundant Gigabit Ethernet uplinks a redundant Cisco GigaStack GBIC loopback cable UplinkFast and CrossStack UplinkFast technologies for high speed uplink and stack interconnection failover and Per VLAN Spanning Tree Plus PVST for uplink load balancing In addition the Cisco Catalyst 2950T 24 offers small and medium sized enterprises server connectivity and an easy migration path to Gigabit by using existing copper cabling infrastructure Implementing Gigabit Ethernet over copper allows network managers to boost network performance and maximize infrastructure investments in Category 5 copper cabling Maximum power availability for a converged voice and data network is attainable when a Cisco Catalyst 2950 Switch is c
23. k Service and Support Technical Support Services Cisco SMARTnet and SMARTnet Onsite available direct from Cisco Packaged Cisco SMARTnet support available through resellers ORDERING INFORMATION Model Numbers WS C2950G 48 EI Configuration Features e 24x7 access to software updates e Web access to technical repositories e Telephone support through the Cisco Technical Assistance Center TAC e Advance replacement of hardware parts 48 10 100 ports two LOOOBASE X ports e Enhanced Image software installed WS C2950G 24 EI 24 10 100 ports two 1000BASE X ports e Enhanced Image software installed WS C2950G 24 EI DC i 24 10 100 ports two 1000BASE X ports DC power e Enhanced Image software installed WS C2950G 12 EI 12 10 100 ports two LOOOBASE X ports e Enhanced Image software installed WS C2950T 24 K 24 10 100 ports two 1000BASE T ports e Enhanced Image software installed WS C2950C 24 g 24 10 100 ports two 100BASE FX ports e Enhanced Image software installed WS C2950ST 24 LRE e Enhanced Image software installed WS C2950ST 8 LRE g e Enhanced Image software installed ADDITIONAL INFORMATION For more information about Cisco Products contact United States and Canada 800 553 NETS 6387 Europe 32 2 778 4242 Australia 612 9935 4107 Other 408 526 7209 http www cisco com 2004 Cisco Systems Inc All rights reserved Benefits
24. lic Denmark Dubai UAE e Finland France Germany Greece e Hong Kong SAR Hungary India Indonesia Ireland Israel Italy Japan Korea Luxembourg Malaysia Mexico The Netherlands New Zealand Norway e Peru Philippines Poland Portugal Puerto Rico Romania Russia Saudi Arabia Scotland Singapore Slovakia Slovenia South Africa Spain Sweden Switzerland Taiwan Thailand Turkey Ukraine United Kingdom United States Venezuela Vietnam Zimbabwe Copyright 2004 Cisco Systems Inc All rights reserved Aironet Catalyst Cisco Cisco Systems the Cisco Systems logo EtherChannel and SMARTnet are registered trademarks of Cisco Systems Inc and or its affiliates in the United States and certain other countries All other trademarks mentioned in this document or Web site are the property of their respective owners The use of the word partner does not imply a partnership relationship between Cisco and any other company 0402R 204108 ck_ETMG_MS_12 04 Printed in the USA 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 18 of 18
25. lows the switch to listen in on the IGMP conversation between hosts and routers When a switch hears an IGMP join request from a host for a given multicast group the switch adds the host s port number to the Group Destination Address GDA list for that group And when the switch hears an IGMP leave request it removes the host s port from the Content Addressable Memory CAM table entry PVST allows users to implement redundant uplinks while also distributing traffic loads across multiple links This is not possible with standard Spanning Tree Protocol implementations Cisco UplinkFast technology helps to ensure immediate transfer to the secondary uplink much better than the traditional 30 to 60 second convergence time This is yet another enhancement of the Spanning Tree Protocol implementation An additional feature that enhances performance is Voice VLAN This feature allows network administrators to assign voice traffic to a VLAN dedicated to IP telephony simplifying phone installations and providing easier network traffic administration and troubleshooting Multicast VLAN Registration MVR is designed for applications using wide scale deployment of multicast traffic across an Ethernet ring based service provider network for example the broadcast of multiple television channels over a service provider network MVR allows a subscriber on a port to subscribe and unsubscribe to a multicast stream on the network wide multic
26. ms performance Per virtual LAN VLAN Spanning Tree Plus PVST allows for Layer 2 load sharing on redundant links to efficiently use the extra capacity inherent in a redundant design IEEE 802 1s Multiple Spanning Tree Protocol MSTP allows a spanning tree instance per VLAN enabling Layer 2 load sharing on redundant links VLAN Trunking Protocol VTP pruning limits bandwidth consumption on VTP trunks by flooding broadcast traffic only on trunk links required to reach the destination devices Dynamic Trunking Protocol DTP enables dynamic trunk configuration across all ports in the switch Internet Group Management Protocol version 3 IGMPv3 snooping provides for fast client joins and leaves of multicast streams and limits bandwidth intensive video traffic to only the requestors Multicast VLAN Registration MVR IGMP filtering and fast join and immediate leave are available as enhancements The number of IGMP groups can be limited with IGMP throttling IGMP Snooping time can be adjusted to optimize the performance of multicast data flows MVR continuously sends multicast streams in a multicast VLAN while isolating the streams from subscriber VLANs for bandwidth and security reasons Supports additional frame formats Ethernet II tagged and untagged and 802 3 Subnetwork Access Protocol SNAP encapsulated tagged and untagged frames 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of
27. ntly and reliably configure essential security availability quality of service and manageability features recommended for Cisco Business Ready Campus solutions with minimal effort and expertise The Cisco GigaStack Gigabit Interface Converter GBIC delivers a hardware based independent stacking bus with up to 2 Gbps forwarding rate in a point to point configuration or 1 Gbps of forwarding bandwidth when daisy chained with up to nine switches Auto configuration eases deployment of switches in the network by automatically configuring multiple switches across a network via a boot server Automatic QoS Auto QoS greatly simplifies the configuration of QoS in VoIP networks by issuing interface and global switch commands that allow the detection of Cisco IP phones the classification of traffic and egress queue configuration Auto sensing on each non GBIC port detects the speed of the attached device and automatically configures the port for 10 100 or 1000 Mbps operation easing the deployment of the switch in mixed 10 100 and 1O00BASE T environments Auto negotiating on all ports automatically selects half or full duplex transmission mode to optimize bandwidth Cisco VTP supports dynamic VLANs and dynamic trunk configuration across all switches Voice VLAN simplifies telephony installations by keeping voice traffic on a separate VLAN for easier network administration and troubleshooting Dynamic Trunking Protocol DTP enables dynamic
28. ombined with the Cisco Redundant Power System 675 for protection against internal power supply failures and an uninterruptable power supply UPS system to safeguard against power outages ADDITIONAL CISCO CATALYST 2950 SERIES SWITCHES Cisco Catalyst 2950 Series with Standard Image Software The Cisco Catalyst 2950SX 48 SI 2950T 48 SI 2950SX 24 2950 24 and 2950 12 are standalone fixed configuration managed 10 100 switches providing basic workgroup connectivity for small to medium sized companies These wire speed desktop switches come with Cisco Standard Image software features and offer Cisco IOS Software functions for basic data video and voice services at the edge of the network Cisco Catalyst 2950 Series Long Reach Ethernet LRE Switches Cisco Catalyst 2950ST 24 LRE 24 LRE ports 2 fixed 10 100 1000BASE T ports and 2 Small Form Factor Pluggable SFP ports two of the four uplinks active at one time Cisco Catalyst 2950ST 8 LRE Eight LRE ports two fixed 10 100 1000BASE T ports and two SFP ports two of the four uplinks active at one time The Cisco Catalyst 2950 Series LRE solution delivers cost effective high performance broadband access over existing phone wiring in enterprise campus environments and multi tenant buildings for example hotels apartment buildings and office buildings Cisco Catalyst 2950 LRE switches include the Cisco Enhanced Image software features enabling enterprise and service provider custom
29. ork Assistant Software Security Wizards ease the deployment of security features for restricting user access to a server a portion of the network or access to the network Quality of Service QoS Overview QoS Classification Support at Ingress QoS Metering and Policing at Ingress QoS Marking at Ingress QoS Scheduling Support at Egress Sophisticated Traffic Management Cisco Catalyst 2950 Series switches support the aggregate QoS model by enabling classification policing metering and marking functions on a per port basis at ingress and the queuing scheduling function at egress The switches support configuring QoS ACPs on all ports to ensure proper policing and marking on a per packet basis using ACPs Up to four ACPs per switch are supported in configuring either QoS ACPs or security filters Auto QoS greatly simplifies the configuration of QoS in VoIP networks by issuing interface and global switch commands that allow the detection of Cisco IP phones the classification of traffic and egress queue configuration The switches support QoS classification of incoming packets for QoS flows based on Layer 2 Layer 3 and Layer 4 fields The following Layer 2 fields or a combination can be used for classifying incoming packets to define QoS flows source destination MAC address or 16 bit Ethertype The switches support identification of traffic based on Layer 3 type of service ToS field DSCP values The following Lay
30. ps maximum forwarding bandwidth Cisco Catalyst 2950G 12 6 4 Gbps maximum forwarding bandwidth Cisco Catalyst 2950T 24 8 8 Gbps maximum forwarding bandwidth Cisco Catalyst 2950C 24 5 2 Gbps maximum forwarding bandwidth Forwarding rates based on 64 byte packets Cisco Catalyst 2950G 48 10 1 Mpps wire speed forwarding rate Cisco Catalyst 2950G 24 6 6 Mpps wire speed forwarding rate Cisco Catalyst 2950G 24 DC 6 6 Mpps wire speed forwarding rate Cisco Catalyst 2950G 12 4 8 Mpps wire speed forwarding rate Cisco Catalyst 2950T 24 6 6 Mpps wire speed forwarding rate Cisco Catalyst 2950C 24 3 9 Mpps wire speed forwarding rate 8 MB memory architecture shared by all ports Up to 16 MB SDRAM and 8 MB Flash memory Configurable up to 8000 MAC addresses Configurable maximum transmission unit MTU of up to 1530 bytes Cisco Catalyst 2950G switches only BRIDGE MIB CISCO BULK FILE MIB CISCO 2900 MIB CISCO CDP MIB CISCO CLASS BASED QOS MIB CISCO CONFIG COPY MIB CISCO CONFIG MAN MIB CISCO ENVMON MIB CISCO FLASH MIB CISCO FTP CLIENT MIB CISCO IMAGE MIB CISCO IPMROUTE MIB CISCO MAC NOTIFICATION MIB CISCO MEMORY POOL MIB CISCO PAGP MIB CISCO PING MIB CISCO PORT SECURITY MIB CISCO PROCESS MIB CISCO PRODUCTS MIB CISCO RTTMON MIB CISCO SMI 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 11 of 18 Feature Standards Des
31. regation device through a virtual path and cannot be directed to another port Local Proxy Address Resolution Protocol ARP works in conjunction with Private VLAN Edge to minimize broadcasts and maximize available bandwidth Port based Access Control Parameters ACPs restrict sensitive portions of the network by denying packets based on source and destination MAC addresses IP addresses or TCP UDP ports ACP lookups are done in hardware therefore forwarding performance is not compromised when implementing this type of security in the network In addition Time based Access Control Lists ACLs allow configuration of differentiated services based on time periods ACLs can also be applied to filter traffic based on Differentiated Services Code Point DSCP values Port security provides another means to ensure that the appropriate user is on the network by limiting access based on MAC addresses For authentication of users with a Terminal Access Controller Access Control System TACACS or RADIUS server 802 1x provides port level security 802 1x in conjunction with a RADIUS server allows for dynamic port based user authentication 802 1x based user authentication can be extended to dynamically assign a VLAN based on a specific user regardless of where they connect on the network With 802 1x with Guest VLAN guests are allowed access to the Internet via the Guest VLAN but cannot access the customer s internal network This intelligent adaptabili
32. rs Per VLAN Rapid Spanning Tree PVRST allows rapid spanning tree reconvergence on a per VLAN spanning tree basis without requiring the implementation of spanning tree instances Cisco CrossStack UplinkFast technology extends UplinkFast to a stack to ensure quick fail over recovery enhancing network stability and availability Support for Cisco s optional RPS 675 675 watt redundant AC power system which provides a backup power source for one of six switches for improved fault tolerance and network uptime Redundant stacking connections provide support for a redundant loopback connection for top and bottom switches in an independent stack backplane cascaded configuration Provides unidirectional link detection UDLD and Aggressive aggressive UDLD for detecting and disabling unidirectional links on fiber optic interfaces caused by incorrect fiber optic wiring or port faults Bandwidth aggregation up to 4 Gbps two ports full duplex through Gigabit EtherChannel technology and up to 16 Gbps eight ports full duplex through Fast EtherChannel technology enhances fault tolerance and offers higher speed aggregated bandwidth between switches to routers and individual servers Port Aggregation Protocol PAgP is available to simplify configuration VLAN 1 minimization allows VLANI to be disabled on any individual VLAN trunk link Per port broadcast multicast and unicast storm control prevent faulty end stations from degrading overall syste
33. s points by simply clicking on its icon in the topology map Cisco Architecture for Voice Video and Integrated Data AVVID Wizards use just a few user inputs to automatically configure the switch to optimally handle different types of traffic voice video multicast and or high priority data A security wizard is provided to restrict unauthorized access to servers and networks and to restrict certain applications on the network One click software upgrades can be performed across multiple switches simultaneously and configuration cloning enables rapid deployment of networks Cisco Network Assistant Software supports multilayer feature configurations such as ACPs and QoS parameters Cisco Network Assistant Software Guide Mode assists users in the configuration of powerful advanced features by providing step by step instructions Cisco Network Assistant Software provides enhanced online help for context sensitive assistance Easy to use GUI provides both a topology map and front panel view of the switches Multidevice and multiport configuration capabilities allow network administrators to save time by configuring features across multiple switches and ports simultaneously User personalized interface allows users to modify polling intervals table views and other settings within Cisco Network Assistant Software and to retain these settings the next time they use Cisco Network Assistant Alarm notification provides automated e mail notifi
34. ssible manner Configuration of QoS is greatly simplified through automatic QoS auto QoS a feature that detects Cisco IP phones and automatically configures the switch for the appropriate classification and egress queuing This optimizes traffic prioritization and network availability without the challenge of a complex configuration Cisco Catalyst 2950 Series switches can classify reclassify police determine if the packet is in or out of predetermined profiles and affect actions on the packet and mark or drop the incoming packets before the packet is placed in the shared buffer Packet classification allows the network elements to discriminate between various traffic flows and to enforce policies based on Layer 2 and Layer 3 QoS fields To implement QoS these switches first identify traffic flows or packet groups and classify or reclassify these groups using the DiffServ Code Point DSCP field in the IP packet and or the 802 1p class of service CoS field in the Ethernet packet Classification and reclassification can also be based on criteria as specific as the source destination IP address source destination MAC address or the Layer 4 Transmission Control Protocol TCP User Datagram Protocol UDP ports At the ingress incoming port level the Catalyst switches also perform policing and marking of the packet After the packet goes through classification policing and marking it is assigned to the appropriate queue before exiting the
35. t way from the desktop to the core and through the WAN With Cisco Catalyst switches Cisco enables companies to realize the full benefits of adding intelligent services into their networks Capabilities that make the network infrastructure highly available to accommodate time critical needs scalable to accommodate growth secure enough to protect confidential information and capable of differentiating and controlling traffic flows are critical to further optimizing network operations Network Security Through Advanced Security Features Cisco Catalyst 2950 Series switches offer enhanced data security through several security features These features allow customers to enhance LAN security with capabilities to secure network management traffic through the protection of passwords and configuration information to provide options for network security based on users ports and MAC addresses and to enable more immediate reactions to intruder and hacker detection These enhancements are available free of charge by downloading the latest software release for the Cisco Catalyst 2950 Series Secure Shell version 2 SSHv2 and Simple Network Management Protocol version 3 SNMPv3 protect information from being eavesdropped or being tampered with by encrypting information being passed on the network thereby guarding administrative information Private VLAN Edge isolates ports on a switch ensuring that traffic travels directly from the entry point to the agg
36. tch offers the ability to limit data flows based on MAC source destination address IP source destination address TCP UDP port numbers or any combination of these fields The switch offers the ability to manage data flows asynchronously upstream and downstream from the end station or on the uplink 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 8 of 18 Feature Management Superior Manageability Cisco Network Assistant Software Benefit An embedded Remote Monitoring RMON software agent supports four RMON groups history statistics alarms and events for enhanced traffic management monitoring and analysis The switch supports all nine RMON groups through the use of a Cisco SwitchProbe Analyzer Switched Port Analyzer SPAN port permitting traffic monitoring of a single port a group of ports or the entire switch from a single network analyzer or RMON probe A SPAN port monitors traffic of a single port from a single network analyzer or RMON probe Remote SPAN RSPAN allows network administrators to locally monitor ports in a Layer 2 switch network from any other switch in the same network Bidirectional RSPAN is supported when the switch is used as a source switch only DHCP Snooping Option 82 enables more sophisticated IP address assignment by the DHCP server The Domain Name System DNS provides IP addr
37. ty allows IT departments to offer greater flexibility and mobility to their stratified user populations By combining access control and user profiles with secure network connectivity services and applications enterprises can more effectively manage user mobility and drastically reduce the overhead associated with granting and managing access to network resources 2004 Cisco Systems Inc All rights reserved Important notices privacy statements and trademarks of Cisco Systems Inc can be found on cisco com Page 3 of 18 With multilayer Cisco Catalyst 2950 Series switches network managers can implement high levels of console security Multilevel access security on the switch console and the Web based management interface prevent unauthorized users from accessing or altering switch configurations TACACS or RADIUS authentication enables centralized access control of the switch and restricts unauthorized users from altering the configuration Security can be deployed through Cisco Network Assistant Software security wizards which ease the deployment of security features that restrict user access to a server a portion of the network or access to the network Network Control Through Advanced Quality of Service and Rate Limiting The Cisco Catalyst 2950 Series offers superior highly granular QoS based on Layer 2 to 4 information helping to ensure that network traffic is classified and prioritized and that congestion is avoided in the best po
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