Chapter 14: VRRP Configuration Guide

In VRRP, the router that owns the IP address associated with the virtual router is the Master. Any other routers that participate in this virtual router are Backups. In this configuration, Router R1 is the Master for virtual router VRID=1 because it owns 10.0.0.1/16, the IP address associated with virtual router VRID=1.

Configuration for Router R2

The following is the configuration file for Router R2 in Figure 17.

1:interface create ip test address-netmask 10.0.0.2/16 port et.1.1

2:ip-redundancy create vrrp 1 interface test

3:ip-redundancy associate vrrp 1 interface test address 10.0.0.1/16

4:ip-redundancy start vrrp 1 interface test

The configuration for Router R2 is nearly identical to Router R1. The difference is that Router R2 does not own IP address 10.0.0.1/16. Since Router R2 does not own this IP address, it is the Backup. It will take over from the Master if it should become unavailable.

Symmetrical Configuration

Figure 18 shows a VRRP configuration with two routers and two virtual routers. Routers R1 and R2 are both configured with two virtual routers (VRID=1 and VRID=2).

Router R1 serves as:

•Master for VRID=1

•Backup for VRID=2

Router R2 serves as:

•Master for VRID=2

•Backup for VRID=1

This configuration allows you to load-balance traffic coming from the hosts on the 10.0.0.0/16 subnet and provides a redundant path to either virtual router.

Note: This is the recommended configuration on a network using VRRP.

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Cabletron Systems 9032578-02 manual Symmetrical Configuration, Configuration for Router R2
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9032578-02 specifications

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