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12-4 Riverstone Networks RS Switch Router User Guide Release 8.0
Configuring VRRP VRRP Configuration Guide
Figure 12-2 Symmetrical VRRP configuration
In this configuration, half the hosts use 10.0.0.1/16 as their default route, and half use 10.0.0.2/16. IP address
10.0.0.1/16 is associated with virtual router
VRID=1
, and IP address 10.0.0.2/16 is associated with virtual router
VRID=2
.
If Router R1, the Master for virtual router
VRID=1
, goes down, Router R2 would take over the IP address 10.0.0.1/16.
Similarly, if Router R2, the Master for virtual router
VRID=2
, goes down, Router R1 would take over the IP address
10.0.0.2/16.
Configuration of Router R1
The following is the configuration file for Router R1 in Figure 12-2.
Router R1 is the owner of IP address 10.0.0.1/16. Line 4 associates this IP address with virtual router
VRID=1
, so
Router R1 is the Master for virtual router
VRID=1
.
On line 5, Router R1 associates IP address 10.0.0.2/16 with virtual router
VRID=2
. However, since Router R1 does not
own IP address 10.0.0.2/16, it is not the default Master for virtual router
VRID=2
.
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 create vrrp 2 interface test
!
4: ip-redundancy associate vrrp 1 interface test address 10.0.0.1/16
5: ip-redundancy associate vrrp 2 interface test address 10.0.0.2/16
!
6: ip-redundancy start vrrp 1 interface test
7: ip-redundancy start vrrp 2 interface test
R1 R2
H1 H2 H3 H4
Default Route = 10.0.0.1/16
Master for VRID=1
Default Route = 10.0.0.2/16
Backup for VRID=2
Master for VRID=2
Backup for VRID=1
Interface Addr. = 10.0.0.1/16
VRID=1Addr. = 10.0.0.1/16
VRID=2Addr. = 10.0.0.2/16
VRID=1
10.0.0.1/16
Interface Addr. = 10.0.0.2/16
VRID=1Addr. = 10.0.0.1/16
VRID=2Addr. = 10.0.0.2/16
VRID=2
10.0.0.2/16