Basic Vrrp Configuration; Configuration Of Router R1 - Cabletron Systems SmartSwitch Router User's Reference Manual

Chapter 7: VRRP Configuration Guide

Basic VRRP Configuration

Figure 4 shows a basic VRRP configuration with a single virtual router. Routers R1 and R2
are both configured with one virtual router (
Router R2 serves as the Backup. The four end hosts are configured to use 10.0.0.1/16 as
the default route. IP address 10.0.0.1/16 is associated with virtual router
Interface Addr. = 10.0.0.1/16
VRID=1; Addr. = 10.0.0.1/16
If Router R1 should become unavailable, Router R2 would take over virtual router
and its associated IP addresses. Packets sent to 10.0.0.1/16 would go to Router R2. When
Router R1 comes up again, it would take over as Master, and Router R2 would revert to
Backup.

Configuration of Router R1

The following is the configuration file for Router R1 in
1: interface create ip test address-netmask 10.0.0.1/16 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
Line 1 adds IP address 10.0.0.1/16 to interface test, making Router R1 the owner of this IP
address. Line 2 creates virtual router
10.0.0.1/16 with virtual router
96
Master
R1
H1 H2
Default Route = 10.0.0.1/16
Figure 4. Basic VRRP Configuration
VRID=1
. Line 4 starts VRRP on interface test.
VRID=1
). Router R1 serves as the Master and
VRID=1
Backup
R2
VRID=1
Interface Addr. = 10.0.0.2/16
VRID=1; Addr. = 10.0.0.1/16
10.0.0.1/16
H3
Figure 4.
on interface test. Line 3 associates IP address
SmartSwitch Router User Reference Manual
.
VRID=1
H4
VRID=1