A new Request for Comments is now available in online RFC libraries.
RFC 9466
Title: PIM Assert Message Packing
Author: Y. Liu, Ed.,
T. Eckert, Ed.,
M. McBride,
Z. Zhang
Status: Standards Track
Stream: IETF
Date: October 2023
Mailbox: [email protected],
[email protected],
[email protected],
[email protected]
Pages: 20
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-pim-assert-packing-12.txt
URL: https://www.rfc-editor.org/info/rfc9466
DOI: 10.17487/RFC9466
When PIM Sparse Mode (PIM-SM), including PIM Source-Specific
Multicast (PIM-SSM), is used in shared LAN networks, there is often
more than one upstream router. This can lead to duplicate IP
multicast packets being forwarded by these PIM routers. PIM Assert
messages are used to elect a single forwarder for each IP multicast
traffic flow between these routers.
This document defines a mechanism to send and receive information for
multiple IP multicast flows in a single PackedAssert message. This
optimization reduces the total number of PIM packets on the LAN and
can therefore speed up the election of the single forwarder, reducing
the number of duplicate IP multicast packets incurred.
This document is a product of the Protocols for IP Multicast Working Group of
the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
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