Alcatel-Lucent 6850-48 Guida Di Rete

OmniSwitch AOS Release 6 Network Configuration Guide

page 32-1

The Virtual Router Redundancy Protocol (VRRPv2/VRRPv3) is a standard router redundancy protocol 
supported in IPv4/IPv6, based on RFC 3768 and RFC 2787. It provides redundancy by eliminating the 
single point of failure inherent in a default route environment

.

 

The VRRPv2/VRRPv3 router, which 

controls the IPv4/IPv6 address associated with a virtual router

 

is called the master router, and is responsi-

ble for forwarding virtual router advertisements. If the master router becomes unavailable, the highest 
priority backup router will transition to the master state. The Alcatel-Lucent implementation of VRRP also 
supports the collective management of virtual routers on a switch.

Note. This VRRPv3 implementation is based on the latest Internet Draft, Virtual Router Redundancy 
Protocol for IPv6, September 2004.

Note. RFC 3768, which obsoletes RFC 2338, does not include support for authentication types. As a 
result, configuring VRRP authentication is no longer supported in this release.

This chapter describes VRRPv2/VRRPv3 and how to configure it through the Command Line Interface 
(CLI). CLI commands are used in the configuration examples; for more details about the syntax of 
commands, see the OmniSwitch CLI Reference Guide.

This chapter provides an overview of VRRP and includes information about the following:

• Virtual routers—see 

.

• IP addresses for virtual routers—see 

• VRRP advertisement interval—see 

• Virtual router priority—see 

.

• Preempting virtual routers—see 

.

• VRRP traps—see 

.

• Configuring Collective Management Functionality—

• Verifying the VRRP configuration—see 

.

• VRRPv3 Virtual routers—see 

.

• IPv6 addresses for VRRPv3 virtual routers—see