Vrrpv3 Configuration Overview; Basic Vrrpv3 Virtual Router Configuration; Creating/Deleting A Vrrpv3 Virtual Router - Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual

Configuring VRRP

VRRPv3 Configuration Overview

During startup, VRRPv3 is loaded onto the switch and is enabled. Virtual routers must be configured first
and enabled as described in the sections. Since VRRPv3 is implemented on multiple switches in the
network, some VRRPv3 parameters must b6e identical across switches:
•
VRRPv3 and ACLs
If QoS filtering rules (Access Control Lists) are configured for Layer 3 traffic on a VRRP router, all of
the VRRP routers on the LAN must be configured with the same filtering rules; otherwise the security
of the network will be compromised. For more information about filtering, see
ing ACLs."
•
Conflicting VRRPv3 Parameters Across Switches
All virtual routers with the same VRID on the LAN should be configured with the same advertisement
interval and IP addresses. If the virtual routers are configured differently, it may result in more than
one virtual router acting as the master router. This in turn would result in duplicate IP and MAC
address messages as well as multiple routers forwarding duplicate packets to the virtual router MAC
address. Use the show vrrp statistics
about configuring VRRPv3 parameters, see the remaining sections of this chapter.

Basic VRRPv3 Virtual Router Configuration

At least two VRRPv3 virtual routers must be configured on the LAN—a master router and a backup
router. The VRRPv3 virtual router is identified by a number called the Virtual Router ID (VRID), the
VLAN on which the VRRPv3 virtual router is configured, and the IPv6 address or addresses associated
with the router. Multiple VRRPv3 virtual routers may be configured on a single physical VRRP router.
Basic commands for setting up VRRPv3 virtual routers include:
vrrp3
vrrp3 address
The next sections describe how to use these commands.

Creating/Deleting a VRRPv3 Virtual Router

To create a VRRPv3 virtual router, enter the
VLAN ID. The VRID must be a unique number in the range from 1 to 255. The VLAN must already be
created on the switch through the vlan command. For information about creating VLANs, see
"Configuring VLANs."
-> vrrp3 6 4
This command creates VRID 6 on VLAN 4.
When you create a new VRRPv3 virtual router, the VRID ID and a VLAN ID are required. Optionally,
you may also specify:
•
Priority (in the range from 1 to 255); use the priority keyword with the desired value. The default is
100. Note that the IP address owner is automatically assigned a value of 255, which overrides any
value that you may have already configured. See
on page 32-21 for more information about how priority is used.
OmniSwitch AOS Release 6 Network Configuration Guide
command to check for conflicting parameters. For information
vrrp3
For example:
command with the desired VRID and the relevant
"Configuring the VRRPv3 Virtual Router Priority"
September 2009
VRRPv3 Configuration Overview
Chapter 41, "Configur-
Chapter 4,
page 32-19