Avaya 8800 Troubleshooting Manual page 13

Viewing multicast group trace information for IGMP snoop...................................................................... 411
Viewing PGM interface errors................................................................................................................... 412
Viewing PGM negative acknowledgement errors..................................................................................... 413
Viewing multicast routes........................................................................................................................... 414
Showing the hardware resource usage.................................................................................................... 416
Viewing multicast routing process statistics.............................................................................................. 417
Determing the protocol configured on the added VLAN........................................................................... 419
Determining the data stream learned when IP multicast over SPBM is configured on the VLAN............ 421
Showing the SPBM multicast database.................................................................................................... 423
Defining the IS-IS trace flag for IP multicast............................................................................................. 423
Chapter 27: Troubleshooting the Unified Access solution.............................................
Troubleshooting WCP and AP problems.................................................................................................. 425
Enabling the wireless system........................................................................................................... 425
Joining the mobility domain.............................................................................................................. 426
Checking CPU and memory utilization............................................................................................. 427
Managing a WSP............................................................................................................................. 427
Troubleshooting a failed WSP.......................................................................................................... 428
Managing an AP............................................................................................................................... 429
Troubleshooting a failed AP............................................................................................................. 430
Connecting clients to an AP............................................................................................................. 430
Troubleshooting WSP problems............................................................................................................... 431
Using WSP show commands........................................................................................................... 431
Using WSP dump commands.......................................................................................................... 433
Troubleshooting tunnel problems..................................................................................................... 434
Tracing packet flows......................................................................................................................... 435
Chapter 28: Upper layer troubleshooting.........................................................................
SNMP troubleshooting.............................................................................................................................. 437
DHCP troubleshooting.............................................................................................................................. 438
Troubleshooting IPv6 DHCP Relay........................................................................................................... 438
IPv6 DHCP Relay switch side troubleshooting................................................................................. 439
IPv6 DHCP Relay server side troubleshooting................................................................................. 440
IPv6 DHCP Relay client side troubleshooting.................................................................................. 440
Enabling trace messages for IPv6 DHCP Relay.............................................................................. 440
Troubleshooting BFD................................................................................................................................ 440
BFD session stays in down state..................................................................................................... 441
BFD enabled on OSPF or BGP, but session not created................................................................. 441
BFD session flaps............................................................................................................................ 442
BFD session goes down when MLT member ports are enabled or disabled................................... 443
BFD with trace on............................................................................................................................. 444
Troubleshooting IPv6 VRRP..................................................................................................................... 444
VRRP transitions.............................................................................................................................. 444
Backup master enabled but not routing packets.............................................................................. 446
Enabling trace messages for IPv6 VRRP troubleshooting............................................................... 446
Risks associated with enabling trace messages.............................................................................. 447
VRRP with higher priority running as backup................................................................................... 448
Troubleshooting IPv6 RSMLT................................................................................................................... 448
Configuration considerations............................................................................................................ 448
Troubleshooting
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July 2013 13