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RFC 5798
Title: Virtual Router Redundancy Protocol (VRRP)
Version 3 for IPv4 and IPv6
Author: S. Nadas, Ed.
Status: Standards Track
Date: March 2010
Mailbox: [email protected]
Pages: 40
Characters: 90322
Obsoletes: RFC3768
I-D Tag: draft-ietf-vrrp-unified-spec-05.txt
URL: http://www.rfc-editor.org/rfc/rfc5798.txt
This memo defines the Virtual Router Redundancy Protocol (VRRP) for
IPv4 and IPv6. It is version three (3) of the protocol, and it is
based on VRRP (version 2) for IPv4 that is defined in RFC 3768 and in
"Virtual Router Redundancy Protocol for IPv6". VRRP specifies an election
protocol that dynamically assigns responsibility for a virtual router to one of
the VRRP routers on a LAN. The VRRP router controlling the IPv4 or
IPv6 address(es) associated with a virtual router is called the Master, and it
forwards packets sent to these IPv4 or IPv6 addresses. VRRP Master
routers are configured with virtual IPv4 or IPv6 addresses, and VRRP
Backup routers infer the address family of the virtual addresses being
carried based on the transport protocol. Within a VRRP router, the
virtual routers in each of the IPv4 and IPv6 address families are a
domain unto themselves and do not overlap. The election process provides
dynamic failover in the forwarding responsibility should the Master become
unavailable. For IPv4, the advantage gained from using VRRP is a higher-
availability default path without requiring configuration of dynamic
routing or router discovery protocols on every end-host. For IPv6, the
advantage gained from using VRRP for IPv6 is a quicker switchover to
Backup routers than can be obtained with standard IPv6 Neighbor Discovery
mechanisms. [STANDARDS TRACK]
This document is a product of the Virtual Router Redundancy Protocol Working
Group of the IETF.
This is now a Proposed Standard Protocol.
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 Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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