Vrrp Tracking Example - Alcatel-Lucent OmniSwitch AOS Release 7 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 10K A for clients
1 and 2 through IP address 10.10.2.250 and virtual router 2 serves as default gateway on OmniSwitch 10K
B for clients 3 and 4 through IP address 10.10.2.245. For example, if the port that provides access to the
Internet on OmniSwitch 10K 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 18-28
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 7 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
March 2011