HP 7500 Switch Series FAQ

Transcription

1 HP 7500 Switch Series FAQ Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Part number:

2 Contents Hardware... 1 Q. What models does the HP 7500 Switch Series include?... 1 Q. What MPUs does the switch support?... 1 Q. What MPUs should I choose for the switch?... 2 Q. Can different MPU models be used on the same switch?... 3 Q. What are the specifications for the CPU, memory, and flash of the MPUs supported by the switch?... 3 Q. Does the switch support CF cards? Are the CF cards hot swappable?... 3 Q. Are there any compatibility issues between the switch's MPUs and LPUs?... 4 Q. How do I identify a card name?... 4 Q. What is wire speed?... 4 Q. What LPUs does the switch support?... 4 Q. What 7500 LPUs support PoE? What PoE types can these LPUs provide?... 6 Q. Do any 7500 LPUs provide 40G interfaces? What transceiver modules and cables are available for 40G interfaces?... 7 Q. What transceiver modules and cables are available for the 10-Gigabit fiber interface cards on the switch?... 8 Q. What transceiver modules are available for the Gigabit fiber interface cards on the switch? Q. What transceiver modules are available for the 100-Mbps fiber interface cards on the switch? Q. Does the switch support hot swapping of LPUs, fans, and power supplies? Q. What power supplies does the switch support? Q. Can DC power supplies and AC power supplies be used on the same switch? Q. How is the intelligent power management function implemented? Q. What protective measures do the switch power supplies adopt? Q. What is the maximum power consumption for each switch model?... 15

3 Q. Can the switch automatically adjust the fan speed? Q. What are the operating temperature and upper and lower temperature thresholds of the switch? Q. What are the requirements for grounding the switch? Q. How do I ground the switch? Q. What are the dust concentration and harmful gas limits in the equipment room of the switch? Q. How is the switch immune to EMI? Q. How is the switch designed for high availability? System software Q. How do I obtain the software version of the switch? Q. Can I delete the running system software image file? Q. What patch types does the switch support? Q. What are the differences between hotfixes and coldfixes? Q. How do I collect system operating information for diagnosis or troubleshooting? Software specifications Q. How many MAC address entries does the switch support? Q. How many ARP entries does the switch support? Q. How many VLAN IDs does the switch support? Q. How many VLAN interfaces does the switch support? Q. How many route entries does the switch support? Q. How many ACLs does the switch support? Link layer features Q. Does the switch support port mirroring? Q. Does the switch support traffic mirroring? Q. Does the switch support Ethernet link aggregation? Q. Can the switch forward traffic without any delay, packet loss, or error? Q. What spanning tree protocols does the switch support? Q. How do I bulk-configure ports on the switch? Q. What is QinQ? Does the switch support QinQ?... 23

4 Q. What is selective QinQ? Does the switch support selective QinQ? IP routing Q. What dynamic routing protocols does the switch support? Q. How are dynamic routing protocols operating in the TCP/IP protocol stack? Q. How are the dynamic routing protocols classified? Q. What is the principle of optimal route selection? Q. What is the compatibility between routing protocols and GR, NSR, FRR, and BFD features? Q. What are the differences between GR and NSR? QoS and ACL Q. What ACL and QoS functions does the switch support? Q. Which directions and destinations can a QoS policy apply to? Q. Which match criteria are supported for QoS traffic classification? Q. What match criteria does a QoS policy support in the inbound and outbound directions? Q. Which actions are supported in a traffic behavior? Q. What actions does a QoS policy support in the inbound and outbound directions? Q. What congestion avoidance features does the switch support? Security features and high availability features Q. What security features does the switch support? Q. What authentication methods does the switch support for 802.1X? Q. What are the differences between the supported HWTACACS and RADIUS? Q. If the source MAC address of an EAPOL-Start packet is a multicast or broadcast MAC address, can the packet trigger 802.1X authentication? Q. If the IP address of a client is a multicast or broadcast IP address, can the client trigger 802.1X authentication? Q. What's the EAD fast deployment feature supported by 802.1X? Q. What is the dot1x timer tx-period command used for? Q. What is the dot1x timer supp-timeout command used for? Q. What is the dot1x timer server-timeout command used for? Q. What is the dot1x timer handshake-period command used for?... 32

5 Q. What is the dot1x timer quiet-period command used for? Q. What are the VLAN features supported by 802.1X? Q. How do I use Windows XP 802.1X client for 802.1X authentication? Q. When does the switch add a user to a MAC authentication guest VLAN? Q. When does the switch add a user to a MAC authentication critical VLAN? Q. What are the typical causes for MAC authentication failures? Q. What are the port security modes? Q. What high availability features does the switch support? Q. Does the switch support Graceful Restart? Network management and monitoring Q. What methods are available for managing the switch? Q. What SNMP versions does the switch support? Q. How is SNMP related to RMON? Q. What are the sampling mechanisms of sflow? IP multicast Q. What IP multicast protocols does the switch support? Q. What networking modes and solutions are available for IPTV application? Q. What are the multicast specifications of the switch? Q. How do I deploy multicast services for users in different VLANs? Q. What benefits does the multicast VLAN feature provide? Q. What types of multicast VLANs are available? MPLS Q. What MPLS features are supported by the switch? Q. What L2VPN features are supported by the switch? IRF Q. Do all HP 7500 models support IRF? Q. How many chassis can an HP 7500 IRF fabric have? Q. What are the basic hardware and software requirements for setting up an IRF fabric? Q. Can HP 7500 switches form an IRF fabric if they run different software versions?... 39

6 Q. Can MPUs in an IRF fabric run different software versions? Q. Can IRF member chassis use duplicate member IDs? Q. What member IDs can I assign to member chassis? Q. Are there any special requirements for connecting IRF member chassis? Q. Why must I bind physical ports to an IRF port? Q. What ports can I use as IRF physical ports? Q. What are the differences between the normal mode and enhanced mode for an IRF physical port? Q. What types of transceiver modules and cables can I use to connect IRF physical ports? Q. Can one HP 7500 model form an IRF fabric with other HP 7500 models? Q. Are there any restrictions for MPUs in an IRF fabric? Q. Are there any restrictions for LPUs in an IRF fabric? Q. What topologies does IRF support? Q. How does a chassis in a daisy-chained IRF fabric determine the forwarding path for a cross-chassis unicast frame? Q. How does a chassis in a ring-topology IRF fabric choose a forwarding path from multiple paths for a cross-chassis unicast frame? Q. How does an IRF member chassis process broadcast, multicast, and unknown unicast traffic? Q. How does the interface number of a physical interface change after IRF mode is enabled on the chassis? Q. How do the MPUs in an IRF fabric operate? Q. Can I remove all the MPUs in a subordinate chassis? Q. Can I install only one MPU in each IRF member chassis? Q. Why must I reboot the master chassis instead of rebooting only global active MPU for a manual master/subordinate switchover between chassis? Q. What methods are available for detecting IRF splits? Q. What are the differences between LACP MAD and BFD MAD? Q. Can I use LACP MAD and BFD MAD in the same IRF fabric? Q. Can I use any LACP-capable device as the intermediate device for LACP MAD? Q. What devices can be used as an intermediate device for LACP MAD?... 45

7 Q. Can I run LACP MAD on any Ethernet link aggregation? Q. What should I do if the intermediate device for LACP MAD is also in an IRF fabric? Q. How do I deploy links for BFD MAD? Q. Can I use VLAN 1 as a BFD VLAN? Q. Can I configure other features on the BFD MAD VLAN? Q. Can different IRF fabrics in a network use the same BFD MAD VLAN? Q. How does MAD handle an IRF split? Q. How do I recover an IRF fabric? Q. Why are ports that were shut down by MAD still down after an IRF merge? Q. What is local-first load sharing?... 46

8 HP 7500 Switch Series FAQ Hardware This section contains the most frequently asked questions about the switch hardware. Q. What models does the HP 7500 Switch Series include? A. The HP 7500 Switch Series includes the following models: Product code JD242B JD243B JD240B JD239B JD241B JD238B Description HP 7502 Switch Chassis HP 7503-S Switch Chassis HP 7503 Switch Chassis HP 7506 Switch Chassis HP 7506-V Switch Chassis HP 7510 Switch Chassis Q. What MPUs does the switch support? A. The switch supports the following MPUs: Product code Description MPU model JD196A JC697A JD220A JC701A JD222A JC698A JD193B JC699A HP 7502 Main Processing Unit HP 7502 TAA-compliant Main Processing Unit HP Gbps Fabric / Main Processing Unit HP Gbps TAA-compliant Fabric / Main Processing Unit HP 7503-S 144 Gbps Fabric / Main Processing Unit with 16 GbE SFP Ports and 8 GbE Combo Ports HP 7503-S 144 Gbps TAA Fabric / Main Processing Unit with 16 GbE SFP Ports and 8 GbE Combo Ports HP Gbps Fabric / Main Processing Unit with 2 10-GbE XFP Ports HP Gbps TAA-compliant Fabric / Main Processing Unit with 2 10-GbE XFP Ports LSQ1MPUA0 LSQ1SRPD0 LSQ1CGP24TSC0 LSQ1SRP2XB0 1

9 Product code Description MPU model JD194B JC700A HP Gbps Fabric / Main Processing Unit HP Gbps TAA-compliant Fabric / Main Processing Unit LSQ1SRPB0 JD195A HP Gbps Fabric / Advanced Main Processing Unit LSQ1SRP1CB0 JC666A HP 7503-S 144 Gbps Fabric / Main Processing Unit with PoE-upgradable 20p Gig-T / 4p GbE Combo LSQ1CGV24PSC0 Q. What MPUs should I choose for the switch? A. Use the following matrix when you choose MPUs for a 7500 switch: MPU S V LSQ1MPUA0 Yes No No No No No LSQ1CGP24TSC0 No Yes No No No No LSQ1CGV24PSC0 No Yes No No No No LSQ1SRPB0 (Salience VI) LSQ1SRPD0 (Salience VI-Plus) LSQ1SRP1CB0 (Salience VI-Turbo) LSQ1SRP2XB0 (Salience VI-10GE) No No Yes Yes Yes Yes No No Yes Yes Yes Yes No No Yes Yes Yes Yes No No Yes Yes Yes Yes NOTE: You can install two MPUs of the same model for redundancy on all 7500 switches except the 7503-S. The 7503-S switch supports only one MPU. 2

10 Q. Can different MPU models be used on the same switch? A. No. Different MPU models cannot be used on the same switch. Q. What are the specifications for the CPU, memory, and flash of the MPUs supported by the switch? A. The specifications for the CPU, memory, and flash of the MPUs supported by the switch are shown in the following table: MPU CPU Memory Flash LSQ1MPUA0 600 MHz 512 MB 64 MB LSQ1CGP24TSC0 400 MHz 512 MB 64 MB LSQ1CGV24PSC0 400 MHz 512 MB 64 MB LSQ1SRPB0 (Salience VI) 600 MHz 512 MB 64 MB LSQ1SRPD0 (Salience VI-Plus) 600 MHz 512 MB 64 MB LSQ1SRP1CB0 (Salience VI-Turbo) 600 MHz 512 MB 64 MB LSQ1SRP2XB0 (Salience VI-10GE) 600 MHz 512 MB 64 MB Q. Does the switch support CF cards? Are the CF cards hot swappable? A. Yes. All MPUs, except LSQ1CGV24PSC0 and LSQ1CGP24TSC0, support CF cards. All CF cards are hot swappable. CAUTION: Before you remove a CF card from the system, use the umount command to unmount the CF card to avoid damaging the CF card. 3

11 Q. Are there any compatibility issues between the switch's MPUs and LPUs? A. No. There are no compatibility issues between the switch's MPUs and LPUs. Q. How do I identify a card name? A. For an MPU, the name is on the upper-left corner of the card panel. For an LPU, the name is on the upper-right corner of the card panel. Q. What is wire speed? A. Wire speed means that data is transmitted on a physical medium at the maximum rate defined by the industry standard. For example, the wire speed of a fast Ethernet link is 100 Mbps. Q. What LPUs does the switch support? A. The switch supports the following LPUs: Product code Description LPU model JD197B HP port 100Base-FX SA Module LSQ1FP48SA0 JD198B HP port 10/100Base-TX PoE-upgradable SA Module LSQ1FV48SA0 JD199B HP port Gig-T PoE-upgradable SA Module LSQ1GV48SA0 JC667A HP port GbE SFP / 8-port GbE Combo SA Module LSQ1GP24TSA0 JC668A HP port Gig-T / 4-port GbE PoE-upgradable Combo SA Module LSQ1GV24PSA0 JD201A HP port 10-GbE XFP SC Module LSQ1TGX2SC0 JD203B JC704A HP port GbE SFP SC Module HP port GbE SFP SC TAA-compliant Module LSQ1GP24SC0 JD204B HP port Gig-T SC Module LSQ1GT24SC0 JD205A HP port GbE SFP / 2-port 10-GbE XFP SC Module LSQ1P24XGSC0 JD206A HP port Gig-T / 2-port 10-GbE XFP SC Module LSQ1T24XGSC0 JD207A HP port GbE SFP SC Module LSQ1GP12SC0 JD210A JC709A JG663A JG664A HP port Gig-T PoE-upgradable SC Module HP port Gig-T PoE-upgradable SC TAA-compliant Module HP port 1000BASE-T PoE+ SC Module HP port 1000BASE-T PoE+ SC TAA-compliant Module LSQ1GV48SC0 LSQ3GV48SC0 JD228B HP port Gig-T / 8-port GbE SFP PoE-upgradable SC LSQ1GV40PSC0 4

12 Product code Description LPU model Module JC710A HP port Gig-T / 8-port GbE SFP PoE-upgradable SC TAA-compliant Module JD223A HP port GbE SFP / 8-port GbE Combo SC Module LSQ1GP24TSC0 JD211B HP port GbE SFP SC Module LSQ1GP48SC0 JF290A JC723A JC669A HP port 10-GbE SFP+ SC Module HP port 10-GbE SFP+ SC TAA-compliant Module HP port Gig-T / 4-port GbE Combo PoE-upgradable SC Module LSQ1TGS8SC0 LSQ1GV24PSC0 JC792A HP port 40GbE QSFP+ SC Module LSQ1QGS4SC0 JG373A HP port 40GbE CFP SC Module LSQ1QGC4SC0 JD191A JC713A JD229B JC712A JD230A JC714A HP port 10-GbE XFP SD Module HP port 10-GbE XFP SD TAA-compliant Module HP port Gig-T PoE+ SD Module HP port Gig-T PoE+ SD TAA-compliant Module HP port GbE SFP / 2-port 10-GbE XFP SD Module HP port GbE SFP / 2-port 10-GbE XFP SD TAA-compliant Module LSQ1TGX8SD0 LSQ1GV48SD0 LSQ1GP24TXSD0 JD236A HP port 10-GbE XFP SD Module LSQ1TGX2SD0 JD234A JC718A JD235A JC719A JD237A JC721A HP port GbE SFP / 8-port GbE Combo SD Module HP port GbE SFP / 8-port GbE Combo SD TAA-compliant Module HP port 10-GbE XFP SD Module HP port 10-GbE XFP SD TAA-compliant Module HP port GbE SFP SD Module HP port GbE SFP SD TAA-compliant Module LSQ1GP24TSD0 LSQ1TGX4SD0 LSQ1GP48SD0 JD221A HP port GbE SFP EB Module LSQ1GP48EB0 JD231A JC715A HP port GbE SFP / 8-port GbE Combo EB Module HP port GbE SFP / 8-port GbE Combo EB TAA-compliant Module LSQ1GP24TEB0 JD232A HP port 10-GbE XFP EB Module LSQ1TGX4EB0 5

13 Product code Description LPU model JC716A HP port 10-GbE XFP EB TAA-compliant Module JD233A HP port 10-GbE XFP EB Module LSQ1TGX2EB0 JG639A JG645A HP 10500/ G Unified Wired-WLAN Module HP 10500/ G Unified Wired-WLAN TAA-compliant Module LSU3WCMD0 JG372A HP 10500/11900/ Gbps VPN Firewall module LSU1FWCEA0 JD249A HP 7500 VPN Firewall Module LSQ1FWBSC0 JD252A HP 7500 Load Balancing Module LSQ1LBSC0 JD254A HP 7500 NetStream Monitoring Module LSQ1NSMSC0 JD253A HP 7500 SSL VPN Module with 500-user License LSQ1SSLSC0 Q. What 7500 LPUs support PoE? What PoE types can these LPUs provide? A. The PoE powering types include type 1 and type 2. Type 1 A port provides power of 0 to 15.4 W, voltage of 44 V to 57 V, and maximum current of 350 ma. This type is applicable to class 0 through class 3 PDs. Type 2 A port provides power of 0 to 30 W, voltage of 50 V to 57 V, and maximum current of 600 ma. This type is applicable to class 0 through class 4 PDs. The following table describes 7500 LPUs that support PoE as well as the PoE types that these LPUs can provide: PoE LPU Number of PoE-capable ports Compatible PoE DIMM module PoE type LSQ1GV48SD0 48 No PoE DIMM is needed for supplying LSQ3GV48SC0 48 power through PoE Type1, Type2 LSQ1CGV24PSC0 24 LSQ1GV24PSC0 24 HP port PoE DIMM(JC671A) LSQ1GV24PSA0 24 LSQ1FV48SA0 48 Type 1 LSQ1GV48SA0 48 LSQ1GV48SC0 48 HP port PoE DIMM(JD192B) LSQ1GV40PSC0 40 6

14 CAUTION: The maximum PoE output power provided by the LSQ1GV48SD0 and LSQ3GV48SC0 is 806 W. The total PoE power provided by the ports on the card cannot exceed 806 W. Q. Do any 7500 LPUs provide 40G interfaces? What transceiver modules and cables are available for 40G interfaces? A. Yes. The following table describes LPUs that provide 40G interfaces as well as transceiver modules and cables available for 40G interfaces: LPU model Description Connector Number of interfaces Interface transmission rate Available transceiver modules and cables 4-port 40-G LSQ1QGS4S C0 optical Ethernet interface (QSFP+, MPO) card MPO 4 40 Gbps QSFP+ module QSFP+ cable QSFP+ to SFP+ cable LSQ1QGC4S C0 4-port 40-G optical interface (CFP) card LC 4 40 Gbps CFP module The transceiver module and cable specifications are as follows: CFP module specifications: Product code Description Central wavelength(nm) Fiber diameter (μm) Maximum transmission distance JC857A HP X140 40G CFP LC LR4 10km SM Transceiver / km (6.21 miles) QSFP+ module specifications: Product code Description Connector Fiber specifications Multimode fiber modal bandwidth (MHz*km) Maximum transmission distance JG325A HP X140 40G QSFP+ MPO SR4 Transceiver MPO MULTIMODE 50/125μm OM m ( ft) QSFP+ cable specifications: 7

15 Product code Description Cable length Remarks JG326A HP X240 40G QSFP+ QSFP+ 1m Direct Attach Copper Cable 1 m (3.28 ft) JG327A HP X240 40G QSFP+ QSFP+ 3m Direct Attach Copper Cable 3 m (9.84 ft) Used for connecting 40 G QSFP+ ports. JG328A HP X240 40G QSFP+ QSFP+ 5m Direct Attach Copper Cable 5 m (16.40 ft) QSFP+ to SFP+ cable specifications: Product code Description Cable length Remarks HP X240 40G QSFP+ to 4x10G JG329A SFP+ 1m Direct Attach Copper 1 m (3.28 ft) Splitter Cable HP X240 40G QSFP+ to 4x10G Used for connecting 40 GE JG330A SFP+ 3m Direct Attach Copper 3 m (9.84 ft) QSFP+ ports and 10 GE SFP+ Splitter Cable ports. HP X240 40G QSFP+ to 4x10G JG331A SFP+ 5m Direct Attach Copper 5 m (16.40 ft) Splitter Cable Q. What transceiver modules and cables are available for the 10-Gigabit fiber interface cards on the switch? A. 10-Gigabit fiber interfaces include XFP interfaces and SFP+ interfaces. An XFP interface supports the following XFP transceiver modules: Product Code Description Central wavelength (nm) Fiber diameter (μm) Multimode fiber modal bandwidth (MHz*km) Max transmission distance JD117B HP X130 10G XFP LC SR Transceiver / m ( ft) m( ft) m( ft) 62.5/ m ( ft) m (85.3 ft) JD108B HP X130 10G XFP LC LR Transceiver /125 N/A 10 km (6.21 miles) 8

16 Product Code Description Central wavelength (nm) Fiber diameter (μm) Multimode fiber modal bandwidth (MHz*km) Max transmission distance JD121A HP X135 10G XFP LC ER Transceiver /125 N/A 40 km (24.86 miles) JD107A HP X130 10G XFP LC ZR Transceiver /125 N/A 80 km (49.71 miles) JG226A HP X180 10G XFP LC LH 80km nm DWDM Transceiver /125 N/A 80 km (49.71 miles) JG227A HP X180 10G XFP LC LH 80km nm DWDM Transceiver /125 N/A 80 km (49.71 miles) JG228A HP X180 10G XFP LC LH 80km nm DWDM Transceiver /125 N/A 80 km (49.71 miles) JG229A HP X180 10G XFP LC LH 80km nm DWDM Transceiver /125 N/A 80 km (49.71 miles) JG230A HP X180 10G XFP LC LH 80km nm DWDM Transceiver /125 N/A 80 km (49.71 miles) JG231A HP X180 10G XFP LC LH 80km nm DWDM Transceiver /125 N/A 80 km (49.71 miles) JG232A HP X180 10G XFP LC LH 80km nm DWDM Transceiver /125 N/A 80 km (49.71 miles) JG233A HP X180 10G XFP LC LH 80km nm DWDM Transceiver /125 N/A 80 km (49.71 miles) NOTE: The 9/125μm single-mode fibers used by modules JG226A through JG233A should conform to ITU-T G.655. Fibers used by other modules should conform to ITU-T G.652. An SPF+ interface supports the following SPF+ transceiver modules and SPF+ cables: SPF+ transceiver modules: 9

17 Product Code Description Central wavelength (nm) Fiber diameter (μm) Multimode fiber modal bandwidth (MHz*km) Maximum transmission distance JD092B HP X130 10G SFP+ LC SR Transceiver / m ( ft) m ( ft) m ( ft) 62.5/ m ( ft) m (85.3 ft.) m ( JD093B HP X130 10G SFP+ LC LRM Transceiver / ft) 100 m ( ft) 62.5/ m ( ft) JD094B HP X130 10G SFP+ LC LR Transceiver /125 N/A 10 km (6.21 miles) JG234 A HP X130 10G SFP+ LC ER 40km Transceiver /125 N/A 40 km (24.86 miles) SFP+ cables: Product Code Description Cable length Cable type Description JD096C HP X240 10G SFP+ SFP+ 1.2m Direct Attach Copper Cable 1.2 m (3.94 ft) JD097C JG081C HP X240 10G SFP+ SFP+ 3m Direct Attach Copper Cable HP X240 10G SFP+ SFP+ 5m Direct Attach Copper Cable 3 m (9.84 ft) 5 m (16.40 ft) SFP+ cable Used for connecting SFP+ ports JC784C HP X240 10G SFP+ SFP+ 7m Direct Attach Copper Cable 7m (22.97 ft) 10

18 Q. What transceiver modules are available for the Gigabit fiber interface cards on the switch? A. The following transceiver modules are available for Gigabit fiber interface cards on the switch: Product Code Description Central wavelength (nm) Fiber diameter (μm) Multimode fiber modal bandwidth (MHz*km) Maximum transmission distance JD089B HP X120 1G SFP RJ45 T Transceiver N/A Category-5 twisted pair N/A 100 m ( ft) JD118B HP X120 1G SFP LC SX Transceiver / / m ( ft) m ( ft) m ( ft) m ( ft) 9/125 N/A 10 km (6.21 miles) JD119B HP X120 1G SFP LC LX Transceiver / m ( ft) JD061A JD062A JD063B HP X125 1G SFP LC LH nm Transceiver HP X120 1G SFP LC LH nm Transceiver HP X125 1G SFP LC LH70 Transceiver 62.5/ m ( ft) /125 N/A 40 km (24.86 miles) /125 N/A 40 km (24.86 miles) /125 N/A 70 km (43.50 miles) JD103A HP X120 1G SFP LC LH100 Transceiver /125 N/A 100 km (62.14 miles) HP X120 JD098B 1G SFP LC BX 10-U Transceiver The two modules must TX: 1310nm RX: 1490nm 9/125 N/A 10 km (6.21 miles) JD099B HP X120 1G SFP LC BX 10-D Transceiver be used together. TX: 1490nm RX: 1310nm 9/125 N/A 10 km (6.21 miles) JD113A HP X170 1G SFP LC LH Transceiver /125 N/A 70 km (43.50 miles) 11

19 Product Code Description Central wavelength (nm) Fiber diameter (μm) Multimode fiber modal bandwidth (MHz*km) Maximum transmission distance JD114A JD115A JD116A JD109A JD110A JD111A JD112A HP X170 1G SFP LC LH Transceiver HP X170 1G SFP LC LH Transceiver HP X170 1G SFP LC LH Transceiver HP X170 1G SFP LC LH Transceiver HP X170 1G SFP LC LH Transceiver HP X170 1G SFP LC LH Transceiver HP X170 1G SFP LC LH Transceiver /125 N/A 70 km (43.50 miles) /125 N/A 70 km (43.50 miles) /125 N/A 70 km (43.50 miles) /125 N/A 70 km (43.50 miles) /125 N/A 70 km (43.50 miles) /125 N/A 70 km (43.50 miles) /125 N/A 70 km (43.50 miles) NOTE: The 100/1000-Mbps SFP port of a combo interface does not support transceiver module JD089B. Q. What transceiver modules are available for the 100-Mbps fiber interface cards on the switch? A. The following transceiver modules are available for the 100-Mbps fiber interface cards on the switch: Product Code Description Central wavelength (nm) Fiber diameter (μm) Maximum transmission distance JD102B HP X M SFP LC FX Transceiver / /125 2 km (1.24 miles) JD120B JD090A JD091A HP X M SFP LC LX Transceiver HP X M SFP LC LH40 Transceiver HP X M SFP LC LH80 Transceiver / km (9.32 miles) / km (24.86 miles) / km (49.71 miles) JD100A HP X M SFP The TX: / km (9.32 miles) 12

20 Product Code Description Central wavelength (nm) Fiber diameter (μm) Maximum transmission distance LC BX 10-U Transceiver two modu RX: 1550 les must JD101A HP X M SFP LC BX 10-D Transceiver be used in pairs TX: 1550 RX: / km (9.32 miles). Q. Does the switch support hot swapping of LPUs, fans, and power supplies? A. Yes. The switch supports hot swapping of LPUs, fans, and power supplies. Q. What power supplies does the switch support? A. The switch supports the following power supplies: Product code Description Alias JD218A HP W AC Power Supply 1400W AC JD208A HP W DC Power Supply 1400W DC JD217A HP W AC Power Supply 650W AC JD209A HP W DC Power Supply 650W DC JD226A HP W AC Power Supply 300W AC JD225A HP W DC Power Supply 300W DC JD219A HP W AC Power Supply 2800W AC JD227A HP W AC Power Supply 6000W AC The specifications of the power supplies are as follows: Power supply model Height Input Support for PoE Rated voltage range Maximu m output power Maximum PoE output power 300W AC 1 RU AC No 100 VAC to 240 VAC, 50/60 Hz 300 W N/A 300W DC 1 RU DC No 48 VDC to 60 VDC 300 W N/A 650W AC 1 RU AC No 100 VAC to 240 VAC, 650 W N/A 13

21 Power supply model Height Input Support for PoE Rated voltage range Maximu m output power Maximum PoE output power 50/60Hz 650W DC 1 RU DC No 48 VDC to 60 VDC 650 W N/A 1150 W 1400W AC 3 RU AC No 100 VAC to 240 VAC, 50/60Hz at 110 V 1400 W N/A at 220 V 1400W DC 3 RU DC Yes 48 VDC to 60 VDC 1400 W 6720 W 1150 W 2800W AC 3 RU AC Yes 100 VAC to 240 VAC, 50/60Hz at 110 V 1400 W 1150 W at 110 V 1400 W at 220 V at 220 V One PoE input: 1200 W 1150 W Two PoE inputs: 2400 at 110 V W Three PoE inputs: 6000W AC 3 RU AC Yes 100 VAC to 240 VAC 50/60Hz 3600 W One PoE input: 1800 W 1400 W Two PoE inputs: 3600 at 220 V W Three PoE inputs: 5300 W NOTE: The rack unit (RU) specifies the rack height, and 1 RU is mm (1.75 inch). 14

22 Q. Can DC power supplies and AC power supplies be used on the same switch? A. No. DC power supplies and AC power supplies cannot be used on the same switch. Q. How is the intelligent power management function implemented? A. When the switch starts up, the total power that can be provided by all power supplies is calculated. Then the power required by fans and MPUs is deducted from the total power. The remaining power is used for LPUs. When a new LPU is added, the switch compares the remaining power to the power required by the LPU. If the remaining power is sufficient, the device provides power to the LPU. Otherwise, the device does not provide power to the LPU. Q. What protective measures do the switch power supplies adopt? A. The switch power supplies adopt the following protective measures: Input protection Input over-voltage protection, input under-voltage protection, and input over-current protection. Output protection Output over-voltage protection, output over-current protection, output short-circuit protection, and output over-temperature protection. Q. What is the maximum power consumption for each switch model? A. The maximum power consumption for each switch model is as follows: W 7503-S 365 W W W 7506-V 900 W W Q. Can the switch automatically adjust the fan speed? A. Yes. The switch can automatically adjust the fan speed depending on the temperature in the chassis. Q. What are the operating temperature and upper and lower temperature thresholds of the switch? A. The operating temperature of the switch is in the range of 0 C (32 F) to 45 C (113 F). You can use the display environment command to display the temperature statistics of the cards, including the current temperature and temperature thresholds. When the card temperature drops below the lower warning threshold or reaches the upper warning threshold, the switch displays a log message and a trap. 15

23 When the card temperature reaches the alarm threshold, the switch repeatedly displays log and trap messages. It also alerts the user to the high-temperature condition through LEDs on the panel. When the card temperature reaches the shutdown threshold, the switch generates a log message and a trap, and the card automatically powers off. Q. What are the requirements for grounding the switch? A. Before using the switch, connect the grounding cable properly to guarantee lightning protection and anti-interference of the switch. When you ground the switch, make sure the resistance between the chassis and the ground is less than 1 ohm. Q. How do I ground the switch? A. You can ground the switch in the following ways: If a grounding strip is available at the installation site, connect the switch to the ground trip through the grounding cable: a. Unpack the grounding cable provided with the switch. b. Remove the grounding screws from the grounding holes at the rear of the chassis. c. Fasten the grounding screws, which are attached with the dual-hole terminals of the grounding cable, into the grounding holes of the chassis. d. Connect the ring terminal of the grounding cable to the grounding post of the grounding strip, and fasten the grounding cable to the grounding strip with the hex nut. If the switch is AC powered and no grounding strip is available at the installation site, you can ground the switch through the PE wire of the AC power supply. Make sure the following requirements are met: The AC power supply uses a three-wire cable with a protection wire. The PE wire of the AC power supply is well grounded at the power distribution room or AC power supply transformer side. The PE connector on the switch is well connected to the PE wire of the AC power supply. If the switch is powered by a 48 VDC power supply and no grounding strip is available at the installation site, you can ground the switch through the return (RTN) wire of the DC power supply. Make sure the RTN wire is well grounded from the DC egress of the DC power cabinet. Q. What are the dust concentration and harmful gas limits in the equipment room of the switch? A. The dust concentration limit in the equipment room is as follows: Substance Dust particles Concentration limit (particles/m³) 3 x 104 (No visible dust on desk in three days.) 16

24 NOTE: Dust particle diameter 5 μm The equipment room must also meet limits on salts, acids, and sulfides to eliminate corrosion and premature aging of components. The harmful gas limits in the equipment room are as follows: Gas Max. (mg/m³) SO H 2 S NH Cl Q. How is the switch immune to EMI? A. The switch design is compliant to the EMC specifications. Its performance is not degraded under the following EMI levels: Level Interference wave frequency Radiation field strength of the interference source Modulation amplitude Modulation wave frequency 1 80 to 800 MHz 3 V/m 80% AM 1 KHz to 960 MHz 10 V/m 80% AM 1 KHz to 1000 MHz 3 V/m 80% AM 1 KHz to 2000 MHz 10 V/m 80% AM 1 KHz Q. How is the switch designed for high availability? A. The switch is designed as follows for high availability: MPU Active/standby backup. Power system redundancy. Fan tray FRU. Other functional components FRU. Card PCB Derated, simplified, and failure-separated. Software Failure locating, detection, and isolation. All module designs are verified in environment simulation tests and HALTs. 17

25 System software This section contains the most frequently asked questions about system software. Q. How do I obtain the software version of the switch? A. Use the display version command to display system version information. This command displays information including software version, chassis model, MPU type, and interface card type. Q. Can I delete the running system software image file? A. HP recommends that you not delete the running system software image file. Deleting the file does not affect system operations. However, the switch or card will be unable to start up if the switch or a card reboots before you respecify a startup system software image file. Q. What patch types does the switch support? A. The switch supports hotfixes and coldfixes. Q. What are the differences between hotfixes and coldfixes? A. Hotfixes repair software defects without requiring a reboot. Coldfixes require a card reboot to be activated. Q. How do I collect system operating information for diagnosis or troubleshooting? A. The following diagnosis and troubleshooting methods are available: Use feature-specific display commands to collect running status data feature by feature. Use the display diagnostic-information command in any view to bulk collect running status data for multiple features. Using the display diagnostic-information command can take a long period of time, depending on the amount of data in the system. To save time, choose to save data to a file at the prompt instead of choosing to display data on the screen. Software specifications This section contains the most frequently asked questions about software specifications. Q. How many MAC address entries does the switch support? A. The number of MAC addresses entries supported on the switch varies by card, as follows: EB cards 512K 18

26 SA cards 8K Salience VI (LSQ1SRPB0) 32K Salience VI-10GE (LSQ1SRP2XB0) 32K Salience VI-Plus (LSQ1SRPD0) 32K Salience VI-Turbo (LSQ1SRP1CB0) 128K SC cards (excluding SC cards providing 40-Gbps ports) 32K SC cards providing 40-Gbps ports 128K SD cards 128K Q. How many ARP entries does the switch support? A. The total number of ARP entries of the switch cannot exceed 16K. The number of ARP entries that a card supports varies by card as follows: EB cards 16K SA cards 2K SC cards (excluding SC cards providing 40-Gbps ports) 8K SC cards providing 40-Gbps ports 16K SD cards 16K Q. How many VLAN IDs does the switch support? A. The switch supports VLAN IDs 1 to Q. How many VLAN interfaces does the switch support? A. The switch supports 1024 VLAN interfaces. Q. How many route entries does the switch support? A. The number of routes supported on the switch varies by card, as follows: EB cards (8K IPv6) SA cards 512 (shared by IPv4 and IPv6; 512 for IPv4 and 256 for IPv6) Salience VI (LSQ1SRPB0) card 12K (shared by IPv4 and IPv6; 12K for IPv4 and 6K for IPv6) Salience VI-10GE (LSQ1SRP2XB0) card 12K (shared by IPv4 and IPv6; 12K for IPv4 and 6K for IPv6) Salience VI-Plus (LSQ1SRPD0) card 12K (shared by IPv4 and IPv6; 12K for IPv4 and 6K for IPv6) Salience VI-Turbo (LSQ1SRP1CB0) card (shared by IPv4 and IPv6; for IPv4 and for IPv6) SC cards 12K (shared by IPv4 and IPv6; 12K for IPv4 and 6K for IPv6) SD cards (8K IPv6) 19

27 Q. How many ACLs does the switch support? A. The number of ACLs supported on the switch varies by card, as follows: In the inbound direction: 24-port SA cards port SC cards 3K 48-port SA cards port SC cards (excluding SC cards providing 40-Gbps ports) 6K EB/SD cards 6K SC cards providing 40-Gbps ports 1K In the outbound direction: EB/SD cards 1024 SC cards 512 Link layer features This section contains the most frequently asked questions about link layer features. Q. Does the switch support port mirroring? A. Yes. The switch supports local port mirroring, Layer 2 remote port mirroring, and Layer 3 port mirroring. The following are the port mirroring specifications: Multi-card port mirroring is supported. A maximum of four mirroring groups. Mirroring inbound traffic, outbound traffic, or both. A port can be configured as the source port of multiple mirroring groups. However, the source port of a mirroring group cannot be configured as the reflector port, egress port, or monitor port of any mirroring group. 20

28 Q. Does the switch support traffic mirroring? A. The switch supports traffic mirroring. Traffic mirroring includes local traffic mirroring and remote traffic mirroring. Q. Does the switch support Ethernet link aggregation? A. Yes. The switch supports static link aggregation and dynamic link aggregation. Q. Can the switch forward traffic without any delay, packet loss, or error? A. Yes. Table 1 through Table 4 show the results of testing variable-length packets on 40-GE ports, 10-GE ports, and GE ports. Table 1 Layer 2 forwarding delay for FE ports Packet length (bytes) Throughput (%) Average delay (μs) Minimum delay (μs) Maximum delay (μs) Table 2 Layer 2 forwarding delay for GE ports Packet length (bytes) Throughput (%) Average delay (μs) Minimum delay (μs) Maximum delay (μs)

29 Table 3 Layer 2 forwarding delay for 10-GE ports Packet length (bytes) Throughput (%) Average delay (μs) Minimum delay (μs) Maximum delay (μs) Table 4 Layer 2 forwarding delay for 40-GE ports Packet length (bytes) Throughput (%) Average delay (μs) Minimum delay (μs) Maximum delay (μs) Q. What spanning tree protocols does the switch support? A. The switch supports STP, RSTP, PVST, and MSTP: STP Provides slowest network convergence among the supported spanning tree protocols. RSTP An enhancement to STP. RSTP shortens the delay for a port to change its state from blocking to forwarding after the port is elected the root or designated port. MSTP Adds the support for multiple instances on the basis of RSTP. MSTP supports instances 0 to 31. Instance 0 is the default instance. When the spanning tree protocol is operating in MSTP mode, you must configure VLAN-to-instance mappings in MST region view. Multiple VLANs can be mapped to an instance. PVST Refers to Cisco Rapid PVST. PVST is supported in Release 6626 and later versions. PVST supports instances 0 through 128. Instance 0 is the default instance. PVST instances are divided based on VLANs. The switch dynamically assigns an instance to a VLAN, and each VLAN corresponds to one instance. 22

30 To modify the spanning tree mode, use the stp mode command in system view and then use the stp mcheck command. Q. How do I bulk-configure ports on the switch? A. Use the interface range command in system view to enter interface range view to bulk configure multiple interfaces with the same feature. You can add multiple interfaces of different types (for example, Ethernet interfaces and VLAN interfaces) to an interface range. The interface-range name command allows you to define an alias for an interface range and add interfaces to the interface range multiple times. You can define different aliases for different interface ranges to differentiate them. Additionally, you can enter the interface range name to enter the view of the interface range, rather than enter an interface list. This command reduces the configuration workload. Q. What is QinQ? Does the switch support QinQ? 802.1Q-in-802.1Q (QinQ) delivers the following benefits: Enables a service provider to use a single SVLAN to convey multiple CVLANs for a customer. Enables customers to plan CVLANs without conflicting with SVLANs. Provides an easy-to-implement Layer 2 VPN solution of small-sized MANs and enterprise networks. Figure 1 shows the single-tagged Ethernet frame header and double-tagged Ethernet frame header. Figure 1 single-tagged Ethernet frame header and double-tagged Ethernet frame header The inner VLAN tag is the CVLAN tag of a customer network, and the outer VLAN tag is the SVLAN tag that the service provider assigns to the customer network. The devices in the service provider network forward a tagged frame according to its SVLAN tag only. They transmit the CVLAN tag as part of the frame's payload. The MAC address of the packet is learned into the MAC address entries for the SVLAN. The switch supports basic QinQ and selective QinQ. 23

31 Q. What is selective QinQ? Does the switch support selective QinQ? A. Selective QinQ is implemented based on basic QinQ. Selective QinQ can be configured to process the incoming frames on a port based on the CVLAN tags. It allows you to do the following: Add different SVLAN tags to the incoming frames based on the CVLAN tags of the incoming frames. Set the 801.1p priority values in the SVLAN tags according to the 802.1p priority values in the CVLAN tags. Modify the CVLAN tags after the incoming port adds SVLAN tags to the incoming frames. IP routing This section contains the most frequently asked questions about IP routing. Q. What dynamic routing protocols does the switch support? A. The switch supports RIP, RIPng, OSPF, OSPFv3, IS-IS, IS-ISv6, BGP, and BGP4+. Q. How are dynamic routing protocols operating in the TCP/IP protocol stack? A. All dynamic routing protocols operate on the application layer of the TCP/IP stack. For examples, OSPF, BGP, and RIP use different lower layer protocols: OSPF encapsulates its messages inside IP packets with the IP protocol number 89. OSPF also guarantees data delivery reliability. BGP employs TCP, which provides reliable data delivery, to exchange routing information through port 179. RIP employs UDP, which does not provide reliable data delivery, to exchange routing information through port 520. Q. How are the dynamic routing protocols classified? A. Distance-vector protocols include RIP and BGP. Shortest path first (link-state) protocols include OSPF and IS-IS. Q. What is the principle of optimal route selection? A. If routing protocols find multiple routes to the same destination, the route management module selects the optimal route by using the following process: 1. Selects the route with the highest preference. A smaller value represents a higher preference. You can configure a preference for each static route and each dynamic routing protocol. 24

32 2. Selects the route with the highest default preference if two routes have equal preference. Different protocol routes cannot be used to implement ECMP load balancing even if they are configured with the same preference. Table 5 lists the route types and default preferences. 3. Selects the route with the lowest cost between routes of the same protocol. On a switch, the redistributed OSPF ASE and OSPF NSSA routes inherit the OSPF route preference. Table 5 Route types and default route preferences Route type Preference Direct route 0 OSPF 10 IS-IS 15 Unicast static route 60 RIP 100 OSPF ASE 150 OSPF NSSA 150 IBGP 255 EBGP 255 Unknown (route from an untrusted source) 256 Q. What is the compatibility between routing protocols and GR, NSR, FRR, and BFD features? A. The following matrix describes the GR, NSR, FRR, and BFD features and routing protocol compatibility: Route type GR NSR FRR BFD IPv4 static route N/A N/A Yes Yes IPv6 static route N/A N/A N/A No RIP No No Yes Yes RIPng No No No No OSPF Yes Yes Yes Yes OSPFv3 Yes No No Yes IS-IS Yes No Yes Yes IS-ISv6 Yes No No Yes BGP Yes No No Yes BGP4+ Yes No No Yes 25

33 Q. What are the differences between GR and NSR? A. Graceful Restart (GR), also called non-stop forwarding (NSF), ensures forwarding continuity when an active/standby switchover occurs. GR does not back up routing information. After an active/standby switchover, the MPU of the GR restarter obtains routing information from its neighbors. GR has the following disadvantages: GR requires the cooperation of neighboring devices to recover routing information. After an active/standby switchover, the routing process in the MPU must learn all the routes. During the switchover, removed routes cannot be deleted immediately from the FIB until the corresponding entries in the FIB age out, which can result in blackhole routes. Non-stop routing (NSR) backs up routing information (including static and dynamic data) from the active MPU to the standby MPU. The active MPU and the standby MPU own the same basic system operating data, dynamic data, and status. When an active/standby switchover occurs, the standby MPU seamlessly takes over without requiring the cooperation of other devices. NSR applies to more application scenarios than GR and improves the high availability of the system. QoS and ACL Q. What ACL and QoS functions does the switch support? A. The switch supports the following ACL functions: Basic, advanced, and Ethernet frame header ACLs. Ingress and egress ACLs. VLAN ACL. Global ACL. The switch supports the following QoS functions: Diff-Serv QoS model. SP, WRR, WFQ, SP+WRR, and SP+WFQ queuing. Traffic shaping. Congestion avoidance. Priority marking. Priority mapping for 802.1p, ToS, DSCP, and EXP. 26

34 Q. Which directions and destinations can a QoS policy apply to? A. A QoS policy can apply to the inbound or outbound direction of the system, an interface, or a VLAN. A QoS policy can also apply to the inbound direction of the control plane. Q. Which match criteria are supported for QoS traffic classification? A. Traffic classification supports the following match criteria: Basic ACLs, advanced ACLs, and Ethernet frame header ACLs. Source and destination MAC addresses. Inner and outer VLAN tags p priorities of inner and outer VLAN tags, DSCP values, and IP precedence. Protocol types. Local QoS IDs. System indexes (predefined match criteria for packets sent to the control plane). Q. What match criteria does a QoS policy support in the inbound and outbound directions? A. A QoS policy supports the following match criteria in the inbound and outbound directions: Match criteria Inbound Outbound destination-mac Supported Supported source-mac Supported Supported customer-vlan-id Supported Supported service-vlan-id Supported Supported customer-dot1p Supported Supported service-dot1p Supported Supported dscp Supported Supported ip-precedence Supported Supported protocol Supported Supported qos-local-id Supported Not supported system-index Supported Not Supported 27

35 Q. Which actions are supported in a traffic behavior? A. The switch supports the following actions in a traffic behavior: Action type Action Traffic mirroring Mirroring traffic to physical ports, aggregate interfaces, and the CPU. Many-to-two traffic mirroring. Redirecting traffic to physical ports, aggregate interfaces, and the CPU. Traffic redirection Redirecting traffic to the next hop IPv4 or IPv6 address to implement policy-based routing. Actions after a redirection failure. Traffic accounting Traffic accounting by packet. Traffic accounting by byte. DSCP marking p marking. Local precedence marking. Priority marking Drop precedence marking. Local QoS ID marking. Priority marking for green, yellow, and red packets. IP precedence. Actions on VLAN tags VLAN tag adding. CVLAN marking VLAN and SVLAN marking. Common CAR. Traffic policing Aggregate CAR. Hierarchical CAR. 28

36 Q. What actions does a QoS policy support in the inbound and outbound directions? A. A QoS policy supports the following actions in the inbound and outbound directions: Action Inbound Outbound Packet filtering Permit Supported Supported Deny Supported Supported Mirroring traffic to physical ports Supported Supported Traffic mirroring Mirroring traffic to the CPU Supported Not supported Mirroring traffic to aggregate interfaces Redirecting traffic to physical ports Supported Supported Supported Not supported Traffic redirection Redirecting traffic to the CPU Supported Redirecting traffic to Supported aggregate interfaces Not supported Not supported Redirecting traffic to the next IPv4 or IPv6 address Supported Not supported Common CAR Supported Supported Traffic policing Aggregate CAR Supported Not supported Hierarchical CAR Supported Not supported Traffic accounting Traffic accounting by packet or byte Supported Supported DSCP Supported Supported 802.1p Supported Supported Priority marking Local precedence Supported Not supported Drop precedence Supported Not supported IP precedence Supported Supported VLAN VLAN tag marking Supported Supported VLAN tag adding Supported Not supported Local QoS ID Local QoS ID marking Supported Not supported 29

37 Q. What congestion avoidance features does the switch support? The switch supports tail drop and WRED. Security features and high availability features This section contains the most frequently asked questions about security and high availability features. Q. What security features does the switch support? A. The switch supports the following security features: Authentication modes of scheme, password, and none to control console login. Local user configuration. SSH 1.5 and SSH 2.0 protocols. RADIUS and HWTACACS protocols X authentication, MAC authentication, and portal authentication. Port security. Q. What authentication methods does the switch support for 802.1X? A. The switch supports the CHAP, PAP, and EAP authentication methods for 802.1X. When the switch uses EAP termination mode, it performs either CHAP or PAP authentication with the RADIUS server. If EAP relay mode is used, it performs EAP authentication. EAP supports EAP-TLS, EAP-MD5, PEAP, and EAP-TTLS. In this mode, the user-name-format command configured in RADIUS scheme view does not take effect. The switch sends the authentication data from the client to the server without any modification. Q. What are the differences between the supported HWTACACS and RADIUS? A. Table 6 lists the primary differences between HWTACACS and RADIUS. Table 6 Differences between HWTACACS and RADIUS Item RADIUS HWTACACS Encryption Secures the user password by using MD5. Secures the entire packet except for the HWTACACS header by using MD5. Upper layer protocol used Uses UDP, which provides high transport efficiency. Uses TCP, which provides reliable network transmission. Authentication The authorization and authentication Authorization is independent of authentication and 30