Extensions to IS-IS for Layer-2 Systems
Amarnath Banerjee, D. Ward · 2011
This document specifies the Intermediate System to Intermediate System (IS-IS) extensions necessary to support link state routing for any protocols running directly over Layer-2.While supporting this concept involves several pieces, this document only describes extensions to IS-IS.Furthermore, the Type, Length, Value pairs (TLVs) described in this document are generic Layer-2 additions, and specific ones as needed are defined in the IS-IS technology-specific extensions.We leave it to the systems using these IS-IS extensions to explain how the information carried in IS-IS is used.