Explicit Reverse Path Forwarding Vector
RFC 7891, “Explicit Reverse Path Forwarding Vector”, is a Proposed Standard document published in June 2016 by J. Asghar, IJ. Wijnands, S. Krishnaswamy, A. Karan, V. Arya. The canonical text is published by the RFC Editor.
Abstract
The PIM Reverse Path Forwarding (RPF) Vector TLV defined in RFC 5496 can be included in a PIM Join Attribute such that the RPF neighbor is selected based on the unicast reachability of the RPF Vector instead of the source or Rendezvous Point associated with the multicast tree.
This document defines a new RPF Vector Attribute type such that an explicit RPF neighbor list can be encoded in the PIM Join Attribute, thus bypassing the unicast route lookup.
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 7891 is hosted at rfc-editor.org. Available in TXT,HTML.
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