Vrrp Configuration Example; Configuring A Single Vrrp Standby Group - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide

3.4 VRRP Configuration Example

3.4.1 Configuring a Single VRRP Standby Group

I. Network requirements
Host A uses the VRRP standby group formed by Router A and Router B as its default
gateway for accessing Host B on the Internet.
The VRRP standby group is defined by VRID 1 and virtual IP address 202.38.160.111.
In the group, Router A is the master and Router B is the backup; preemption is allowed.
II. Network diagram
Router A Router A
E1/0/0:202.38.160.1 E1/0/0:202.38.160.1
Figure 3-3 Network diagram for single VRRP standby group configuration
III. Configuration procedure
Configure Router A:
[3Com-Ethernet1/0/0] vrrp vrid 1 virtual-ip 202.38.160.111
[3Com-Ethernet1/0/0] vrrp vrid 1 priority 120
[3Com-Ethernet1/0/0] vrrp vrid 1 preempt-mode timer delay 5
Configure Router B:
[3Com-Ethernet1/0/0] vrrp vrid 1 virtual-ip 202.38.160.111
The standby group can be used immediately after configuration. On Host A, set the
address of the default gateway to 202.38.160.111.
Host B Host B
203.2.3.1 203.2.3.1
Internet Internet
Virtual IP address Virtual IP address
202.38.160.111 202.38.160.111
Host A Host A
3Com Corporation
Chapter 3 VRRP Configurations
Router B Router B
E1/0/0:202.38.160.2 E1/0/0:202.38.160.2
202.38.160.3 202.38.160.3
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