RFC 3488 (rfc3488) - Page 1 of 17
Cisco Systems Router-port Group Management Protocol (RGMP)
Alternative Format: Original Text Document
Network Working Group I. Wu
Request for Comments: 3488 T. Eckert
Category: Informational Cisco Systems
February 2003
Cisco Systems
Router-port Group Management Protocol (RGMP)
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2003). All Rights Reserved.
Abstract
This document describes the Router-port Group Management Protocol
(RGMP). This protocol was developed by Cisco Systems and is used
between multicast routers and switches to restrict multicast packet
forwarding in switches to those routers where the packets may be
needed.
RGMP is designed for backbone switched networks where multiple, high
speed routers are interconnected.
1. Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in BCP 14, RFC 2119 [2].
2. Introduction
IGMP Snooping is a popular, but not well documented mechanism to
restrict multicast traffic, in switched networks, to those ports that
want to receive the multicast traffic. It dynamically establishes
and terminates multicast group specific forwarding in switches that
support this feature.
Wu & Eckert Informational
