IS-IS

networking

Stands for: Intermediate System to Intermediate System

A link-state routing protocol, used in large networks and Ethernet fabrics.

Intermediate System to Intermediate System (ISO/IEC 10589) is a link-state interior gateway protocol, a peer to OSPF, favored in large service-provider cores and used as the control plane for SPBM fabrics.

Also known as: is-is, isis

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