Vrrp Tracking Example - Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual

VRRP Application Example

VRRP Tracking Example

The figure below shows two VRRP routers with two virtual routers backing up one IP address on each
VRRP router respectively. Virtual router 1 serves as the default gateway on OmniSwitch A for clients 1
and 2 through IP address 10.10.2.250 and virtual router 2 serves as default gateway on OmniSwitch B for
clients 3 and 4 through IP address 10.10.2.245. For example, if the port that provides access to the Inter-
net on OmniSwitch A fails, virtual router 1 will continue to be the default router for clients 1 and 2, but
clients 1 and 2 will not be able to access the Internet.
port 3/1
10.10.2.250
VLAN 5
clients 1 and 2
default gateway 10.10.2.250
In this example, the master for virtual router 1 has a priority of 100 and the backup for virtual router 1 has
a priority of 75. The virtual router configuration for VRID 1 and 2 on VRRP router A is as follows:
-> vrrp 1 5 priority 100 preempt
-> vrrp 2 5 priority 75
The virtual router configuration for VRID 1 and 2 on VRRP router B is as follows:
-> vrrp 1 5 priority 75
-> vrrp 2 5 priority 100 preempt
To ensure workstation clients 1 and 2 have connectivity to the internet, configure a tracking policy on
VRRP router A to monitor port 3/1 and associate the policy with VRID 1.
-> vrrp track 1 enable priority 50 port 3/1
-> vrrp 1 5 track-association 1
page 32-28
VRRP Router
OmniSwitch A
VRID 1
Master 1
10.10.2.250
VRID 2
Backup 2
10.10.2.245
VRRP Tracking Example
OmniSwitch AOS Release 6 Network Configuration Guide
VRRP Router
OmniSwitch B
Backup 1
Master 2
10.10.2.245
clients 3 and 4
default gateway 10.10.2.245
Configuring VRRP
port 3/1
Virtual Routers
September 2009