DELL N3000 User Manual

Configuring VRRP

In Figure 37-10, the VRRP priorities are configured so that Router A is the 

VRRP master, and Router B is the VRRP backup. Router A forwards IP traffic 

from clients to the external network through the VLAN 25 routing interface. 

The clients are configured to use the virtual IP address 192.168.10.15 as the 

default gateway. 

Without VRRP interface or route tracking, if something happened to VLAN 

25 or the route to the external network, as long as Router A remains up, it will 

continue to be the VRRP master even though traffic from the clients does not 

have a path to the external network. However, if the interface and/or route 

tracking features are configured, Router A can decrease its priority value when 

the problems occur so that Router B becomes the master.