Path Computation Element Communication Protocol Extension for Label Switched Path Diversity Constraint Signaling
RFC 8800, “Path Computation Element Communication Protocol Extension for Label Switched Path Diversity Constraint Signaling”, is a Proposed Standard document published in July 2020 by S. Litkowski, S. Sivabalan, C. Barth, M. Negi. It has since been updated by RFC 9756. The canonical text is published by the RFC Editor.
Abstract
This document introduces a simple mechanism to associate a group of Label Switched Paths (LSPs) via an extension to the Path Computation Element Communication Protocol (PCEP) with the purpose of computing diverse (disjointed) paths for those LSPs. The proposed extension allows a Path Computation Client (PCC) to advertise to a Path Computation Element (PCE) that a particular LSP belongs to a particular Disjoint Association Group; thus, the PCE knows that the LSPs in the same group need to be disjoint from each other.
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 8800 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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