PIM Flooding Mechanism (PFM) and Source Discovery (SD)
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: The IESG <email@example.com>, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, Mike McBride <firstname.lastname@example.org>, email@example.com, firstname.lastname@example.org Subject: Document Action: 'PIM Flooding Mechanism and Source Discovery' to Experimental RFC (draft-ietf-pim-source-discovery-bsr-12.txt) The IESG has approved the following document: - 'PIM Flooding Mechanism and Source Discovery' (draft-ietf-pim-source-discovery-bsr-12.txt) as Experimental RFC This document is the product of the Protocols for IP Multicast Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-pim-source-discovery-bsr/
Technical Summary PIM Sparse-Mode (PIM-SM) uses a Rendezvous Point (RP) and shared trees to forward multicast packets from new sources. Once last hop routers receive packets from a new source, they may join the Shortest Path Tree for the source for optimal forwarding. This draft defines a new mechanism that provides a way to support PIM-SM without the need for PIM registers, RPs or shared trees. Multicast source information is flooded throughout the multicast domain using a new generic PIM flooding mechanism. This allows last hop routers to learn about new sources without receiving initial data packets. Working Group Summary There has only been positive feedback for moving this draft to an experimental RFC. We have complete consensus for progressing this document after face to face meeting discussions and on the list. Document Quality There is at least one implementation and a couple of deployments. Personnel Mike McBride, PIM WG co-chair is the Shepherd. Alvaro Retana is the Area Director.