Advanced Traffic Management Guide K/KA/KB.15.15

Removing a Member or the Standby..............................................................................295
Removing the Commander...........................................................................................295
Renumbering stack members.............................................................................................295
Restoring the operation of a stack......................................................................................296
Restoring operation after disconnecting a power cord......................................................296
Restoring operation after disconnecting a stacking cable..................................................296
Replacing a failed stack member...................................................................................297
Replacing a failed stacking module...............................................................................297
Merging stack fragments...................................................................................................297
Modifying the stack topology............................................................................................298
Downloading new software to the stack..............................................................................298
Monitoring stacking..............................................................................................................298
Troubleshooting stacking........................................................................................................301
Troubleshooting OOBM and split stack issues......................................................................301
Using fault recovery/troubleshooting tools...........................................................................304
Troubleshooting installation and deployment issues...............................................................304
Troubleshooting issues with adding or removing members in the stack.....................................304
Troubleshooting a strictly provisioned, mismatched MAC address...........................................306
Troubleshooting a mismatched stack-ID...............................................................................308
Troubleshooting logging...................................................................................................310
Troubleshooting a strictly provisioned, mismatched type........................................................310
Troubleshooting maximum stack members exceeded.............................................................312
Troubleshooting a bad cable.............................................................................................313
Troubleshooting when a switch crashes and reboots.............................................................316
Troubleshooting an unresponsive reboot..............................................................................317
Troubleshooting an unexpected Commander or Standby switch selection.................................317
Managing interactions with other switch features......................................................................318
Managing SSH or Telnet sessions.......................................................................................318
Managing switch-level configuration interactions..................................................................318
Managing port-level configuration interactions.....................................................................318
LACP support..............................................................................................................319
Managing OOBM ports...................................................................................................319
Understanding stacking election.............................................................................................320
Electing a Commander.....................................................................................................320
Electing a Standby...........................................................................................................320
9 QinQ (Provider bridging)........................................................................322
Introduction..........................................................................................................................322
How QinQ works............................................................................................................322
Features and benefits........................................................................................................323
Configuring QinQ................................................................................................................323
QinQ Configuration example.................................................................................................324
QinQ Configuration example: provider Edge 2 switch..........................................................325
Configuring example: provider core 1 switch.......................................................................326
Verifing the configuration..................................................................................................326
Enabling QinQ....................................................................................................................327
Setting up S-VLANs...............................................................................................................327
Configuring per-port S-VLAN membership................................................................................327
In QinQ mixed VLAN mode..............................................................................................328
Configuring port-types...........................................................................................................328
Disabling QinQ...................................................................................................................329
Changing VLAN port memberships (mixed VLAN mode)...........................................................329
Moving ports between C-VLANs and S-VLANs (mixed VLAN mode)............................................330
Viewing QinQ configuration and status...................................................................................330
Viewing a switch VLAN configuration......................................................................................331
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