White Papers

24 Intermediate System to Intermediate System...........................................................................................472
IS-IS Protocol Overview................................................................................................................................................472
IS-IS Addressing.............................................................................................................................................................472
Multi-Topology IS-IS.......................................................................................................................................................473
Transition Mode........................................................................................................................................................473
Interface Support.....................................................................................................................................................474
Adjacencies............................................................................................................................................................... 474
Graceful Restart.............................................................................................................................................................474
Timers........................................................................................................................................................................474
Implementation Information..........................................................................................................................................474
Conguration Information.............................................................................................................................................475
Conguration Tasks for IS-IS..................................................................................................................................476
Conguring the Distance of a Route.....................................................................................................................483
Changing the IS-Type.............................................................................................................................................. 484
Redistributing IPv4 Routes.....................................................................................................................................486
Redistributing IPv6 Routes..................................................................................................................................... 487
Conguring Authentication Passwords.................................................................................................................488
Setting the Overload Bit......................................................................................................................................... 488
Debugging IS-IS....................................................................................................................................................... 489
IS-IS Metric Styles.........................................................................................................................................................490
Congure Metric Values............................................................................................................................................... 490
Maximum Values in the Routing Table................................................................................................................... 491
Change the IS-IS Metric Style in One Level Only.................................................................................................491
Leaks from One Level to Another..........................................................................................................................492
Sample Congurations.................................................................................................................................................. 493
25 In-Service Software Upgrade.................................................................................................................. 496
ISSU Introduction.......................................................................................................................................................... 496
Warmboot Limitations.............................................................................................................................................496
Fastboot 2.0 (Zero Loss Upgrade).............................................................................................................................. 496
L2 ISSU........................................................................................................................................................................... 497
L3 ISSU........................................................................................................................................................................... 497
CoPP............................................................................................................................................................................... 498
Mirroring ow control packets..................................................................................................................................... 498
PFC..................................................................................................................................................................................498
QoS..................................................................................................................................................................................498
Tunnel Conguration..................................................................................................................................................... 498
26 Link Aggregation Control Protocol (LACP).............................................................................................. 500
Introduction to Dynamic LAGs and LACP.................................................................................................................. 500
Important Points to Remember............................................................................................................................. 500
LACP Modes.............................................................................................................................................................501
Conguring LACP Commands................................................................................................................................501
LACP Conguration Tasks............................................................................................................................................502
Creating a LAG.........................................................................................................................................................502
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