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Transition Mode........................................................................................................................................................470
Interface Support......................................................................................................................................................471
Adjacencies................................................................................................................................................................471
Graceful Restart............................................................................................................................................................. 471
Timers........................................................................................................................................................................ 471
Implementation Information...........................................................................................................................................471
Conguration Information............................................................................................................................................. 472
Conguration Tasks for IS-IS..................................................................................................................................473
Conguring the Distance of a Route.....................................................................................................................480
Changing the IS-Type...............................................................................................................................................481
Redistributing IPv4 Routes.....................................................................................................................................483
Redistributing IPv6 Routes.....................................................................................................................................484
Conguring Authentication Passwords.................................................................................................................485
Setting the Overload Bit......................................................................................................................................... 485
Debugging IS-IS....................................................................................................................................................... 486
IS-IS Metric Styles.........................................................................................................................................................487
Congure Metric Values................................................................................................................................................487
Maximum Values in the Routing Table...................................................................................................................487
Change the IS-IS Metric Style in One Level Only................................................................................................ 487
Leaks from One Level to Another..........................................................................................................................489
Sample Congurations..................................................................................................................................................490
25 In-Service Software Upgrade...................................................................................................................492
ISSU Introduction...........................................................................................................................................................492
Warmboot Limitations............................................................................................................................................. 492
Fastboot 2.0 (Zero Loss Upgrade).............................................................................................................................. 492
L2 ISSU........................................................................................................................................................................... 493
L3 ISSU........................................................................................................................................................................... 493
CoPP............................................................................................................................................................................... 494
Mirroring ow control packets..................................................................................................................................... 494
PFC..................................................................................................................................................................................494
QoS..................................................................................................................................................................................494
Tunnel Conguration..................................................................................................................................................... 494
26 Link Aggregation Control Protocol (LACP).............................................................................................. 496
Introduction to Dynamic LAGs and LACP.................................................................................................................. 496
Important Points to Remember............................................................................................................................. 496
LACP Modes............................................................................................................................................................ 497
Conguring LACP Commands............................................................................................................................... 497
LACP Conguration Tasks............................................................................................................................................498
Creating a LAG.........................................................................................................................................................498
Conguring the LAG Interfaces as Dynamic........................................................................................................498
Setting the LACP Long Timeout........................................................................................................................... 499
Monitoring and Debugging LACP..........................................................................................................................499
Shared LAG State Tracking..........................................................................................................................................500
Conguring Shared LAG State Tracking...............................................................................................................500
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