Chapter 10. Troubleshooting the IS-IS Routing Protocol
This chapter covers common problems that might result in faulty operation of the IS-IS protocol, and discusses procedures to troubleshoot them. Most of the time, faulty operation results from misconfigurations, which could be easily discerned by carefully reviewing configurations of the routers involved and the output of basic CLNS- and IS-IS-related show commands. However, some issues might present more of a challenge. Such issues might require advanced knowledge of the IS-IS protocol architecture and capabilities, evaluation of packet captures, and complicated network-wide debugging procedures.
To quickly evaluate and resolve problems, in every case, you need a solid technical understanding ...
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