VRRP Application Example Configuring VRRP
page 18-28 OmniSwitch AOS Release 7 Network Configuration Guide March 2011
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.
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
VRRP Router
OmniSwitch A
VRRP Router
OmniSwitch B
Virtual Routers
VRID 1
10.10.2.250
VRID 2
10.10.2.245
VRRP Tracking Example
Master 1
10.10.2.24510.10.2.250
default gateway 10.10.2.250
default gateway 10.10.2.245
clients 3 and 4clients 1 and 2
Backup 2
Backup 1
Master 2
VLAN 5
port 3/1
port 3/1
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