Deployment Guide

Table Of Contents
Chapter 24: Intermediate System to Intermediate System........................................................ 455
IS-IS Protocol Overview................................................................................................................................................455
IS-IS Addressing..............................................................................................................................................................455
Multi-Topology IS-IS...................................................................................................................................................... 456
Transition Mode.........................................................................................................................................................456
Interface Support......................................................................................................................................................456
Adjacencies.................................................................................................................................................................456
Graceful Restart..............................................................................................................................................................457
Timers.......................................................................................................................................................................... 457
Implementation Information..........................................................................................................................................457
Configuration Information.............................................................................................................................................458
Configuration Tasks for IS-IS.................................................................................................................................458
Configuring the Distance of a Route....................................................................................................................465
Changing the IS-Type.............................................................................................................................................. 465
Redistributing IPv4 Routes..................................................................................................................................... 468
Redistributing IPv6 Routes..................................................................................................................................... 468
Configuring Authentication Passwords............................................................................................................... 469
Setting the Overload Bit......................................................................................................................................... 469
Debugging IS-IS......................................................................................................................................................... 470
IS-IS Metric Styles...........................................................................................................................................................471
Configure Metric Values.................................................................................................................................................471
Maximum Values in the Routing Table..................................................................................................................471
Change the IS-IS Metric Style in One Level Only.............................................................................................. 471
Leaks from One Level to Another......................................................................................................................... 473
Sample Configurations...................................................................................................................................................473
Chapter 25: In-Service Software Upgrade................................................................................. 476
ISSU Introduction............................................................................................................................................................476
Fastboot 2.0 (Zero Loss Upgrade)............................................................................................................................. 476
L2 ISSU.............................................................................................................................................................................. 477
L3 ISSU.............................................................................................................................................................................. 477
CoPP.................................................................................................................................................................................. 477
Mirroring flow control packets.....................................................................................................................................478
PFC.....................................................................................................................................................................................478
QoS.....................................................................................................................................................................................478
Tunnel Configuration...................................................................................................................................................... 478
Chapter 26: Link Aggregation Control Protocol (LACP)............................................................. 479
Introduction to Dynamic LAGs and LACP................................................................................................................. 479
Important Points to Remember............................................................................................................................. 479
LACP Modes.............................................................................................................................................................. 480
Configuring LACP Commands............................................................................................................................... 480
LACP Configuration Tasks............................................................................................................................................480
Creating a LAG........................................................................................................................................................... 481
Configuring the LAG Interfaces as Dynamic....................................................................................................... 481
Setting the LACP Long Timeout............................................................................................................................ 481
Monitoring and Debugging LACP.......................................................................................................................... 482
Shared LAG State Tracking..........................................................................................................................................482
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