Avaya 8800 Troubleshooting Manual page 11

Starting system message logging to a PCMCIA or external flash card.................................................... 329
Configuring system message control........................................................................................................ 330
Extending system message control.......................................................................................................... 331
Configuring ACLI logging.......................................................................................................................... 332
Chapter 19: Recovery trees and procedures....................................................................
Recovery trees.......................................................................................................................................... 335
IST failure......................................................................................................................................... 335
DHCP Relay failure.......................................................................................................................... 336
SNMP failure.................................................................................................................................... 337
Flash failure...................................................................................................................................... 338
Licensing problems and recovery............................................................................................................. 339
Job aid: general tips and information............................................................................................... 340
Issue: license will not install............................................................................................................. 340
Issue: cannot transfer license........................................................................................................... 341
Issue: license file generation does not succeed............................................................................... 342
Issue: licensed features cannot be configured................................................................................. 342
Chapter 20: Layer 1 troubleshooting................................................................................
Troubleshooting fiber optic links............................................................................................................... 345
Troubleshooting DWDM XFPs.................................................................................................................. 346
Additional useful commands............................................................................................................ 347
Chapter 21: Layer 2 troubleshooting................................................................................
Troubleshooting SMLT failure using the CLI or ACLI............................................................................... 349
Troubleshooting IST failure using the CLI................................................................................................. 351
Troubleshooting IST failure using the ACLI.............................................................................................. 352
Troubleshooting IstSessionDown message using CLI or ACLI................................................................ 353
Troubleshooting BPDU filtering................................................................................................................. 353
No packets received on the port....................................................................................................... 353
SNMP trap not received................................................................................................................... 354
Displaying BPDU filtering records.................................................................................................... 355
Chapter 22: Unicast routing troubleshooting...................................................................
Routing and licensing: protocol will not run............................................................................................... 357
IP Multinetting troubleshooting.................................................................................................................. 358
OSPF troubleshooting............................................................................................................................... 358
Viewing OSPF errors........................................................................................................................ 358
OSPF neighbor state problems........................................................................................................ 360
OSPF down state or no state problems........................................................................................... 361
OSPF Init state problems................................................................................................................. 362
OSPF ExStart/Exchange problems.................................................................................................. 363
BGP+ troubleshooting............................................................................................................................... 363
Neighbors not established between the BGP peers......................................................................... 363
BGP routes not coming up in the switch routing table...................................................................... 364
Routes are not advertised to a BGP peer........................................................................................ 365
General BGP+ troubleshooting........................................................................................................ 366
Enabling trace and debugging for BGP+ troubleshooting................................................................ 366
Route policy problems...................................................................................................................... 367
IP VPN Lite troubleshooting...................................................................................................................... 367
Chapter 23: Multicast feature troubleshooting................................................................
Troubleshooting
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July 2013 11