Virtual Router Redundancy Protocol

aliases:

• VRRP

Open-source standard protocol for configuring failover routers.

VRRP is highly similar to HSRP, with the main differences being terminology and packet formats. In VRRP, the active router is called the 'master,' and the standby routers are just called backup routers. There isn't a specific standby router that will step up should the master go down like in HSRP, but instead one is chosen only in the event of the master failing, based on a priority list.

One key difference between VRRP and HSRP is that VRRP doesn't require each router interface to have a unique IP address. Instead, it's possible to configure each router to use only the configured virtual IP address. This is useful in networks where the address space utilization is high.