RFC 5120 · PROPOSED STANDARD · 2008

M-ISIS: Multi Topology Routing in Intermediate System to Intermediate Systems

Overview

RFC 5120, “M-ISIS: Multi Topology Routing in Intermediate System to Intermediate Systems”, is a Proposed Standard document published in February 2008 by T. Przygienda, N. Shen, N. Sheth. The canonical text is published by the RFC Editor.

Abstract

This document describes an optional mechanism within Intermediate System to Intermediate Systems (IS-ISs) used today by many ISPs for IGP routing within their clouds. This document describes how to run, within a single IS-IS domain, a set of independent IP topologies that we call Multi-Topologies (MTs). This MT extension can be used for a variety of purposes, such as an in-band management network "on top" of the original IGP topology, maintaining separate IGP routing domains for isolated multicast or IPv6 islands within the backbone, or forcing a subset of an address space to follow a different topology. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

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.

Read this RFC

The canonical text of RFC 5120 is hosted at rfc-editor.org. Available in TXT,HTML.

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