Topic summary
Intermediate System to Intermediate System
Extracted from the Wikipedia article IS-IS.
Intermediate System to Intermediate System (IS-IS, also written ISIS) is a link-state interior gateway protocol (IGP), typically deployed within a single autonomous system, and is used in large enterprise and service-provider networks to exchange routing information. The IS-IS protocol is defined in ISO/IEC 10589:2002 as an international standard in the Open Systems Interconnection (OSI) model.