IS-IS Multi-Instance, December 2012
- Canonical URL:
- File formats:
- PROPOSED STANDARD
- Obsoleted by:
- RFC 8202
- S. Previdi, Ed.
- isis (rtg)
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This document describes a mechanism that allows a single router to share one or more circuits among multiple Intermediate System to Intermediate System (IS-IS) routing protocol instances.
Multiple instances allow the isolation of resources associated with each instance. Routers will form instance-specific adjacencies. Each instance can support multiple topologies. Each topology has a unique Link State Database (LSDB). Each Protocol Data Unit (PDU) will contain a new Type-Length-Value (TLV) identifying the instance and the topology (or topologies) to which the PDU belongs.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.