RUGGEDCOM RS930L
Contents
1. Order codes 6GK60930AD2 Base Unit includes 6 10 100 BaseTX Ethernet Ports PS1 Power Supply 1 1 24 VDC 10 36 VDC 2 48 VDC 36 72 VDC 3 87 264VAC or 88 300VDC Mount Mounting Options A No mounting option B DIN rail mounting C Panel mounting MOD Manufacturing Modifications O None 1 Conformal coating VV1 VDSL Interface AOO Standard reach under 2 5km A01 Long reach 5km Master CO A02 Long reach 5km CPE VV2 VDSL Interface BOO Standard reach under 2 5km BO1 Long reach 5km Master CO BO2 Long reach 5km CPE Power Cables 6GK6000 8BBO0 OAAO Bare wire 6GK6000 8BA00 0AA0 with lugs Example order codes 6GK6093 0AD21 OBA0 Z A00 B00 24VDC 10 36 VDC DIN Rail Mounting Standard reach under 2 5km VDSL 1 Interface Standard reach under 2 5km VDSL 2 Interface 6GK6093 0AD22 0CA1 Z A01 B00 48VDC 36 72 VDC Panel Mounting Conformal Coating Long Reach 5km Master CO VDSL 1 Interface Standard reach under 2 5km VDSL 2 Interface 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption RUGGEDCOM RS930L 11 Siemens Industry Inc 5300 Triangle Parkway Norcross GA 30092 1 800 241 4453 info us siemens com usa siemens com ruggedcom Subject to change without prior notice All rights reserved 2015 Siemens Industry Inc The information provided in this brochure contains descriptions or characteristics o2. synchronizes the internal clock of all ROS devices on the network This allows for correlation of time stamped events for troubleshooting SCADA and Industrial Automation ROS contains features that optimize network performance and simplify switch management based on the unique requirements found in SCADA and industrial automation applications Features such as Modbus TCP management for retrieval of switch data using the ubiquitous Modbus protocol and DHCP Option 82 a Rockwell Automation ODVA requirement for IP address assignment based on the location of the end device provide capabilities not found in typical commercial or office grade Ethernet switches Port Based Network Access Control 802 1x ROS supports the IEEE 802 1x standard that defines a mechanism for port based network access control which provides a means of authenticating and authorizing devices attached to LAN ports Port Rate Limiting ROS supports configurable rate limiting per port to limit unicast and multicast traffic This can be essential to managing precious network bandwidth for service providers It also provides edge security for denial of service DoS attacks Broadcast Storm Filtering Broadcast storms wreak havoc on a network and can cause attached devices to malfunction This could be disastrous on a network with mission critical equipment ROS limits this by filtering broadcast frames with a user defined threshold Port Mirroring ROS can b
3. 28 bit encryption SNMP v1 v2c v3 56 bit encryption Telnet VT100 SSH SFTP 128 bit encryption Command Line Interface CLI RSA key management 1024 bit key Authentication and accounting TACACS encrypted RADIUS client PPP Warranty m 5 Years Applicable to design and manufacturing related product defects 8 RUGGEDCOM RS930L EMI Immunity and Environmental Compliance m IEC 61000 6 2 Industrial Generic m IEC 61800 3 Industrial Variable Speed Drive Systems m IEC 61850 3 Electric Utility Substations m IEEE 1613 Electric Utility Substations m NEMA TS 2 Traffic Control Equipment m Hazardous Locations Class 1 Division 2 IEEE Compliance m 802 3 10Basel m 802 3u 100BaseTX 100BaseFX E 802 3x Flow Control m 802 3z 1000BaseLXx m 802 3ab 1000BaseTX m 802 3ad Link Aggregation m 802 1d MAC Bridges m 802 1d Spanning Tree Protocol m 802 1p Class of Service m 802 1Q VLAN Tagging m 802 1w Rapid Spanning Tree Protocol m 802 1x Port Based Network Access Control m 802 1Q 2005 formerly 802 1s MSTP IETF RFC Compliance m RFC768 UDP m RFC 783 TFIP m RFC791 IP m RFC792 ICMP m RFC793 TCP m RFC826 ARP m RFC854 Telnet m RFC894 IP over Ethernet m RFC1112 IGMP v1 m RFC1519 CIDR m RFC1541 DHCP client m RFC2030 SNTP m RFC2068 HTTP m RFC2236 IGMP v2 m RFC2284 EAP m RFC2475 Differentiated Services m RFC2865 RADIUS m RFC3414 SNMPv3 USM E RFC3415 SNMPv3 VACM IETF SNMP MIBS m RFC1493 BRIDG
4. D C power ports 1 5V DC N A A C power ports 2k V AC N A Signal ports 5kV Fail safe relay output N A IEC 60255 5 H V impulse D C Power ports 5kV N A A C Power ports 5kV N A IEEE C37 90 3 ESD Enclosure conieci 2kV 4kV l 8kV N A Enclosure air 4kV 8kV 15kV N A IEEE C37 90 2 Radiated RFI Enclosure ports 35 V m N A Signal ports 4kV 2 5kHz N A IEEE C37 90 1 Fast transient EPONA POTI cin NA A C power ports l 4kV N A Earth ground ports 3 l 4kV N A Signal ports 2 5kV common mode 1MHz N A IEEE C37 90 1 Oscillatory D C power ports 2 5kV common 1kV diff mode 1MHz N A A C power ports 2 5kV common 1kV diff mode 1MHz N A Signal ports 5kV Fail safe relay output N A IEEE C37 90 H V impulse D C power ports 5kV N A A C power ports 5kV N A Signal ports 2k V AC N A IEEE C37 90 Dielectric strength D C power ports 1 5k V DC N A A C power ports 2k V AC N A IEC 60068 2 1 Cold temperature Test Ad 40 C 16 hours N A IEC 60068 2 2 Dry heat Test Bd 85 C 16 hours N A IEC 60068 2 30 Humidity damp heat cyclic Test Db 95 non condensing 55 C 6 cycles N A IEC 60255 21 1 Vibration Test Fc 2g 10 150 Hz Class 2 2 IEC 60255 21 2 Shock Test Ea 30g 11mS Class 2 2 1 RUGGEDCOM specified severity levels 2 Class 2 refers to Measuring relays and protection equipment for which a very high security margin is required or where the vibration levels are very high e g shipboard application and for severe transportat
5. E MIB m RFC1907 SNMPv2 MIB m RFC2012 TCP MIB m RFC2013 UDP MIB m RFC2578 SNMPv2 SMI m RFC2579 SNMPv2 TC m RFC2819 RMON MIB m RFC2863 IF MIB m draft ietf bridge rstpmib 03 BRIDGE MIB m draft ietf bridge bridgemib smiv2 03 RSTP MIB m IANAifType MIB 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption Fiber Specifications and Dimension Drawings Fiber Optical Specifications Parameter Fiber Port Type Mode Multimode Singlemode Singlemode Singlemode Connector MTRJ ST SC LC SC ST iG SG Si LC SG ST Typical Dist km 2 20 50 90 Optical Wavelength nm 1310 1310 1310 1310 Cable Size Core Cladding um 50 125 or 62 5 125 8 1250r9 125 8 1250r9 125 8 1250r9 125 TX Power Min Max dBm 9 5 4 91 3 7 1 3 0 5 RX Sensitivity dBm 15 7 15 5 2 5 2 5 RX Saturation dBm 33 5 32 37 39 Typical Budget dB 17 16 5 34 5 41 5 Longer segment lengths dependent on fiber specifications Consult factory for further details 57600 N 8 1 FAILSAFE RESISTIVE FOR CLASS 2 CIRCUITS ONLY CONTACTS RATED 0VDC 1A BOVAG SA Overall dimensions All dimensions are in millimeters unless otherwise stated 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption RUGGEDCOM RS930L 9 Dimension drawings e M A TS 120 65 10 RUGGEDCOM RS930L 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption
6. Lx KA Na X Ave s F f A n and 48VDC power supply inputs for high availability applications requiring backup power inputs The embedded Rugged Operating System ROS provides advanced cyber security features and comprehensive networking functions providing a full array of intelligent functionality for high network availability and manageability Coupled with ruggedness and durability that is designed in from the onset the RS9OOL is ideal for creating mission critical real time control applications where high reliability and availability is of paramount importance All RUGGEDCOM products are backed by a five year warranty and unsurpassed technical support usa siemens com ruggedcom Features and Benefits Ethernet Ports m Up to two Ethernet over VDSL EoVDSL interfaces m 6 fast Ethernet ports 10 100BaseTX Ethernet Over VDSL Characteristics m Up to 5km LAN segments m Symmetric data rates up to 35Mbps m Asymmetric data rates up to 40Mbps 2 Automatically selects fastest data rate based on distance and quality of cable Software selectable to be master or slave m Frequency Division Multiplexing FDM Cyber Security Features Multi level user passwords SSH SSL SFTP 128 bit encryption Enable disable ports MAC based port security Port based network access control 802 1x VLAN 802 1Q to segregate and secure network traffic RADIUS centralized password management SNMPv3 authentication and 56 bit encrypt
7. ail rit ca er me A Product Overview The RUGGEDCOM RS930L from Siemens is a 6 port utility grade fully managed Ethernet switch supporting Ethernet over VDSL EoVDSL allowing up to 5km LAN segments over telephone grade cable or other legacy serial cabling at up to 35Mbps The RS930L allows for aggregation of Ethernet enabled devices at a remote location back to the central control room with EoVDSL using existing telephone grade cable or other legacy serial cabling The RS930L can be configured with dual EoVDSL interfaces and is ideal for ring or loop network architecture and is the perfect solution for bringing Ethernet networking to applications where existing telephone wiring is already present thus saving the considerable cost of installing new network cabling Designed to operate reliably in harsh environments the RS930L provides a high level of immunity to electromagnetic interference and heavy electrical surges typical of environments found in electric utility substations curb side traffic control cabinets and factory floors An operating temperature range of 40 C to 85 C coupled with hazardous location compliance optional conformal coating and a galvanized steel enclosure allows the RS930L to be placed in almost any location The RS930L provides an integrated power supply with a wide range of voltages 88 300VDC or 85 264VAC for worldwide operability or dual input reversible polarity 12VDC 24VDC ave LAN wes TX
8. cast storm detection and self test diagnostics among others Alarms provide a snapshot of recent events that have yet to be acknowledged by the network administrator An external hardware relay is de energized during the presence of critical alarms allowing an external controller to react if desired HTML Web Browser and Telnet SSH User Interfaces ROS provides a simple intuitive user interface for configuration and monitoring via a standard graphical web browser or via Telnet SSH All system parameters include detailed on line help to make setup a breeze ROS presents a common look and feel and standardized configuration process allowing easy migration to other RUGGEDCOM managed products Configuration Via ASCII Text File All configuration parameters are stored in an ASCII formatted text file that can easily be transferred via TFTP SFTP or Xmodem The configuration file can be saved for backup purposes and easily manipulated by a text editor The same text file can be downloaded to the switch at a later date in order to re configure or restore a previous configuration Command Line Interface CLI A command line interface can be used in conjunction with remote shell to automate data retrieval configuration updates and firmware upgrades A powerful SQL like capability allows expert users the ability to selectively retrieve or manipulate any parameters the device has to offer 6 port Managed Ethernet Switch With Dual Port Ethernet O
9. e configured to duplicate all traffic on one port to a designated mirror port When combined with a network analyzer this can be a powerful troubleshooting tool 6 RUGGEDCOM RS930L Loss of Link Management Some intelligent electronic devices IEDs have dual fiber optic ports with automatic failover to a backup port should the primary fail ROS ensures this mechanism works reliably under all failure modes by appropriately disabling link signals when required ROS also flushes learned MAC addresses to ensure the failover occurs quickly Port Configuration and Status ROS allows individual ports to be hard configured for speed duplex auto negotiation flow control and more This allows proper connection with devices that do not negotiate or have unusual settings Detailed status of ports with alarm and SNMP trap on link problems aid greatly in system troubleshooting Port Statistics and RMON Remote monitoring ROS provides continuously updating statistics per port that provide both ingress and egress packet and byte counters as well as detailed error figures Also provided is full support for the RMON statistics history alarms and event groups RMON allows for very sophisticated data collection analysis and detection of traffic patterns Event Logging and Alarms ROS records all significant events to a non volatile system log allowing forensic troubleshooting Events include link failure and recovery unauthorized access broad
10. f performance which in case of actual use do not always apply as described or which may change as a result of further development of the products An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract Availability and technical specifications are subject to change without notice All product designations may be trademarks or product names of Siemens AG or supplier companies whose use by third parties for their own purposes could violate the rights of the owners
11. ial role in mission critical applications and where high reliability is of paramount importance Key ROS features that address security issues at the local area network level include m Passwords Multi level user passwords secures switch against unauthorized configuration m SSH SSL Extends capability of password protection to add 128 bit encryption of passwords and data as they cross the network m Enable Disable ports Capability to disable ports so that traffic can not pass m 802 1Q VLAN Provides the ability to logically segregate traffic between predefined ports on switches m MAC based port security The ability to secure ports on a switch so only specific Devices MAC addresses can communicate via that port m 802 1x Port based network access control The ability to lock down ports on a switch so that only authorized clients can communicate via this port m RADIUS authentication service using MD5 hash and providing centralized password management m SNMPv3 encrypted authentication access security and data encryption CBC DES with 56 bit encryption key m Secure socket layer Web based management using SSL with data encryption 128 bit encryption key m RSA 1024 bit key for key management and key exchange m TACACS Terminal Access Control and Accounting Services Client provides encrypted authentication and authorization m Point to Point PPP using CHAP MD5 Hash authenticatio
12. ion Rugged Rated for Reliability in Harsh Environments Immunity to EMI and heavy electrical surges Meets IEEE 1613 electric utility substations Exceeds IEC 61850 3 electric utility substations Exceeds IEC 61800 3 variable speed drive systems Exceeds IEC 61000 6 2 generic industrial Exceeds NEMA TS 2 traffic control equipment 2 RUGGEDCOM RS930L 40 C to 85 C operating temperature no fans m 20 AWG galvanized steel enclosure m DIN or panel mounting options provide secure mechanical reliability m Hazardous Locations Class 1 Division 2 Rugged Operating System ROS Features Simple plug and play operation automatic learning negotiation and crossover detection MSTP 802 1Q 2005 formerly 802 1s RSTP 802 1D 2004 and Enhanced Rapid Spanning Tree eRSTP network fault recovery lt 5ms Quality of Service 802 1p for real time traffic VLAN 802 1Q with double tagging and GVRP support Link aggregation 802 3ad IGMP Snooping for multicast filtering Port Rate Limiting and Broadcast Storm Limiting Loss of link management on fiber ports SNTP time synchronization client and server Universal Power Supply Options Fully integrated power supply no external adaptors Popular low voltage DC ranges 24VDC 10 36VDC or 48VDC 36 72VDC Universal high voltage range 88 300VDC or 85 264VAC CSA UL 60950 safety approved to 85 C Screw connection terminal blocks ensure reliable mainte
13. ion conditions 3 Only applicable to functional earth connections separated from the safety earth connection 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption RUGGEDCOM RS930L 7 Technical Specifications Power Supply m Power consumption 10W max m 24VDC 10 36VDC 0 4A m 48VDC 36 72VDC 0 2A mw HI voltage AC DC 88 300VDC 85 264VAC 0 1A Critical Alarm Relay m Form C failsafe contact relay 1A 30VDC Physical Dimensions Height 7 4 188 mm Width 2 6 66 mm Depth 5 0 127 mm Weight 1 22 kg Ingress protection IP40 1mm objects Enclosure 20 AWG galvanized steel enclosure Mounting DIN rail or panel mounted Switch Properties Switching method Store and forward Switching latency 8 us 1OOMbps Switching bandwidth 1 8 Gbps MAC address table size 16kbytes Priority queues 4 Frame buffer memory 1 Mbit Simultaneous VLANs 255 VLAN ID range 1 to 4094 IGMP and static multicast groups 256 Port rate limiting 128kbps 256 512 4 8Mbps No head of line blocking Regulatory Approvals m ISO Designed and manufactured using a SO9001 2000 certified quality program m CE marking m Emissions FCC Part 15 Class A EN55022 CISPR22 Class A m Safety cCSAus Compliant with CSA C22 2 No 60950 UL 60950 EN60950 m Laser eye safety FDA CDRH Complies with 21 CFR Chapter 1 Subchapter J Network Management HTTPS graphical web based SSL 1
14. n service m SFTP Secure File Transfer Protocol using SSH encryption The ROS cyber security features are included to help address the various industry specific security standards such as NERC CIP ISA S99 AGA 12 IEC 62443 ISO 17799 2005 and PCSRF SPP ICS Enhanced Rapid Spanning Tree Protocol eRSTP RUGGEDCOM eRSTP allows the creation of fault tolerant ring and mesh Ethernet networks that incorporate redundant links that are pruned to prevent loops eRSTP yields worst case fault recovery of 5ms times the bridge diameter and allows rings of up to 160 switches For example a ring of ten switches will have fault recovery times under 50ms eRSTP implements both STP and RSTP to ensure interoperability with commercial switches unlike other proprietary ring solutions 1 eRSTP fault recovery times may be approximated as follows For 100 Mbps fault recovery performance is lt 5ms hop For 1 000 Mbps fault recovery performance is lt 5ms hop 20ms 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption Quality of Service IEEE 802 1p Some networking applications such as real time control or VoIP voice over IP require predictable arrival times for Ethernet frames Switches can introduce latency in times of heavy network traffic due to the internal queues that buffer frames and then transmit on a first come first serve basis ROS supports Class of Service in accordance
15. nance free connections 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption Operating Temperature gt 40 C to 85 C gt No fans SIEMENS EJ Power unka PETET i E Unke MASTER Fast Ethernet Ports gt 6 Fast Ethernet ports 10 100BaseTX Critical Alarm Relay gt Form C failsafe contact relay 1A 30VDC Mounting Options gt DIN rail gt Panel mount 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption The TRE ERE t n Ap aa a hi k a h i T F m oa E a fea nk Fa I Fie E Fl PER i ur T Wee Wee ea om airy a os ih EoVDSL Port gt Two EoVDSL ports standard gt RJ11 connector gt Symmetric data rates up to 35Mbps Rugged Construction gt 20 AWG galvanized steel enclosure gt Conformal coating optional Integrated Power Supply gt Universal high voltage range 88 300VDC or 85 264VAC gt Popular low voltage DC ranges 24VDC 48VDC gt Dual isolated DC power inputs RUGGEDCOM RS930L 3 Network Architecture Control Room RUGGEDCOM RUGGEDCOM RS930L Up to 40Mbps Up to 5km RS900L SCADA SCADA Servers Servers SCADA Servers E Industrial Ethernet Industrial Ethernet E Serial Copper Fiber Optic RSIOOL 8 Port Managed Switch with Ethernet over VDSL Uplink m 1 Ethernet over VDSL interface m Up to 8 fast Ethe
16. or from hosts on the network This reduces the load on network trunks and prevents packets from being received on hosts that are not involved ROS has a very powerful implementation of IGMP snooping that m Can be enabled on a per VLAN basis m Detects and filters all multicast streams regardless of whether subscribers exist m Supports router less operation by supporting an active mode m Restores traffic streams immediately after an RSTP topology change RUGGEDCOM RS930L 5 ROS Features SNMP Simple Network Management Protocol SNMP provides a standardized method for network management stations to interrogate devices from different vendors SNMP versions supported by ROS are v1 v2c and v3 SNMPv3 in particular provides security features such as authentication privacy with data encryption CBC DES with 56 bit encryption key and access control not present in earlier SNMP versions ROS also supports numerous standard MIBs Management Information Base allowing for easy integration with any network management system NMS A feature of SNMP supported by ROS is the ability to generate traps upon system events RUGGEDCOM NMS the RUGGEDCOM management solution can record traps from multiple devices providing a powerful network troubleshooting tool It also provides a graphical visualization of the network and is fully integrated with all RUGGEDCOM products SNTP Simple Network Time Protocol SNTP automatically
17. rnet ports m Copper and fiber options m Use to aggregate Ethernet enabled devices at remote locations back to a central point RS910L Serial and Ethernet Device Server with Ethernet over VDSL Uplink m 1 Ethernet over VDSL interface m 2 RS485 RS422 RS232 Serial ports DB9 or RJ45 E Optional 2 Ethernet ports copper of fiber m Use to network enable legacy serial devices at remote locations 4 RUGGEDCOM RS930L A E f Rs RUGGEDCOM Up to 100Mbps Up to 90km Video Servers Traffic Control Servers RUGGEDCOM RS920L RUGGEDCOM RS910L Up to 40Mbps Up to Skm Serial Serial Serial Serial SCADA Servers RS920L Dual Port Ethernet over VDSL with Integrated Dual Port Serial Server m 2 Ethernet over VDSL interfaces m 2 RS485 RS422 RS232 Serial ports DB9 or RJ45 m Use asa serial drop point for a ring or bus network topology RS930L 6 Port Managed Switch with Dual Port Ethernet over VDSL Uplink m 2 Ethernet over VDSL interfaces m 6 Port Managed Ethernet Switch copper interfaces m Use as an Ethernet drop point for a ring or bus network topology m Span over hundreds of kilometers using existing telephone grade cables 6 port Managed Ethernet Switch With Dual Port Ethernet Over VDSL Uplinks 128 bit Encryption ROS Features Cyber Security Cyber security is an urgent issue in many industries where advanced automation and communications networks play a cruc
18. ver VDSL Uplinks 128 bit Encryption EMI and Environmental Type Tests IEC 61850 3 EMI Type Tests IEC 61000 4 2 ESD Enclosure Sone 8kV 4 Enclosure air l 15kV 4 IEC 61000 4 3 Radiated RFI Enclosure ports 20 Vim Note 1 Signal ports l 4kV 2 5kHz Note 1 D C power ports l 4kV 4 IEC 61000 4 4 Burst fast transient ING Tagan cake TARN 5 Earth ground ports 3 l 4kV 4 Signal ports 4kV line to earth 2kV line to line 4 IEC 61000 4 5 Surge D C power ports 2kV line to earth 1kV line to line 3 A C power ports 4kV line to earth 2kV line to line 4 Signal ports 10V 3 D C power ports 10V 3 IEC 61000 4 6 Induced conducted RFI E 10V 3 Earth ground ports 3 10V 3 E 40 Alm continuous 1000 A m for 1 s Note 1 IEC 61000 4 8 Magnetic field Enclosure ports Tae aE 5 IEC 61000 4 29 l D C power ports 30 for 0 1s 60 for 0 1s 100 for 0 05s N A Voltage dips and interrupts E 30 for 1 period 60 for 50 periods N A IEC 61000 4 11 a 100 for 5 periods 100 for 50 periods N A Signal ports 2 5kV common 1kV diff mode 1MHz 3 IEC 61000 4 12 Damped oscillatory D C power ports 2 5kV common 1kV diff mode 1MHz 3 A C power ports 2 5kV common 1kV diff mode 1MHz 3 Signal ports 30V Continuous 300V for 1s 4 E Main sieduency voltige D C power ports 30V Continuous 300V for 1s 4 IEC 61000 4 17 Ripple on D C power supply D C power ports 10 3 Signal ports 2k V AC Fail safe relay output N A IEC 60255 5 Dielectric strength
19. with IEEE 802 1p that allows time critical traffic to jump ahead to the front of the queue thus minimizing latency and reducing jitter to allow such demanding applications to operate correctly ROS allows priority classification by port tags MAC address and IP type of service ToS A configurable weighted fair queuing algorithm controls how frames are emptied from the queues VLAN IEEE 802 1Q Virtual local area networks VLAN allow the segregation of a physical network into separate logical networks with independent broadcast domains A measure of security is provided since hosts can only access other hosts on the same VLAN and traffic storms are isolated ROS supports 802 1Q tagged Ethernet frames and VLAN trunks Port based classification allows legacy devices to be assigned to the correct VLAN GVRP support is also provided to simplify the configuration of the switches on the VLAN Link Aggregation 802 3ad The link aggregation feature provides the ability to aggregate several Ethernet ports into one logical link port trunk with higher bandwidth This provides an inexpensive way to set up a high speed backbone to improve network bandwidth This feature is also known as port trunking port bundling port teaming and Ethernet trunk IGMP Snooping ROS uses IGMP snooping Internet Group Management Protocol v1 amp v2 to intelligently forward or filter multicast traffic streams e g MPEG video to
Download Pdf Manuals
Related Search