IS-IS Routing with Reverse Metric
RFC 8500, “IS-IS Routing with Reverse Metric”, is a Proposed Standard document published in February 2019 by N. Shen, S. Amante, M. Abrahamsson. The canonical text is published by the RFC Editor.
Abstract
This document describes a mechanism to allow IS-IS routing to quickly and accurately shift traffic away from either a point-to-point or multi-access LAN interface during network maintenance or other operational events. This is accomplished by signaling adjacent IS-IS neighbors with a higher reverse metric, i.e., the metric towards the signaling IS-IS router.
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 8500 is hosted at rfc-editor.org. Available in TXT,HTML.
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