Chapter 9

Troubleshooting Intermediate System-Intermediate System (IS-IS)

This chapter covers the following topics:

Intermediate System-to-Intermediate System (IS-IS) is a link-state routing protocol that is commonly found in service providers and some enterprise networks. IS-IS provides fast convergence, supports a large number of networks, and can support multiple protocols. Cisco uses IS-IS in a lot of underlying technologies, such as Overlay Transport Virtualization (OTV), Application Centric Infrastructure (ACI), and Software Defined Access (SD-Access).

This chapter focuses on identifying and troubleshooting issues ...

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