IS-IS Multi-Instance
RFC 8202, “IS-IS Multi-Instance”, is a Proposed Standard document published in June 2017 by L. Ginsberg, S. Previdi, W. Henderickx. It obsoletes RFC 6822. The canonical text is published by the RFC Editor.
Abstract
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.
This document obsoletes RFC 6822.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8202 is hosted at rfc-editor.org. Available in TXT,HTML.
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