What Does VRRP Mean in 200-301?
Full form: Virtual Router Redundancy Protocol
Also known as: Virtual Router Redundancy Protocol
Quick Definition
An open-standard FHRP where routers elect a Master that owns the virtual IP and responds to ARP requests.
Full Definition
VRRP (RFC 5798) is an open-standard alternative to Cisco's HSRP. A group of routers elect one Master router that owns and advertises the virtual IP address. Backup routers monitor the Master and take over if it fails. VRRP uses the multicast address 224.0.0.18 for hello messages. Unlike HSRP, the router with the highest IP can automatically become Master (preemption is enabled by default in some implementations).
Exam Trap — Don't Get Fooled
HSRP uses the term Active for its primary router; VRRP uses Master. These are functionally similar but different protocols. VRRP is vendor-neutral; HSRP is Cisco-only.
Related 200-301 Terms
A Cisco proprietary FHRP that provides a virtual IP gateway shared by an active and standby router.
A category of protocols that provide a virtual gateway IP shared across multiple routers for redundancy.
A Cisco proprietary FHRP that provides redundancy and load balancing using multiple virtual MACs.
Frequently Asked Questions
What does VRRP mean on the 200-301 exam?
VRRP (RFC 5798) is an open-standard alternative to Cisco's HSRP. A group of routers elect one Master router that owns and advertises the virtual IP address. Backup routers monitor the Master and take over if it fails. VRRP uses the multicast address 224.0.0.18 for hello messages. Unlike HSRP, the router with the highest IP can automatically become Master (preemption is enabled by default in some implementations).
How does VRRP appear as a trap on the 200-301?
HSRP uses the term Active for its primary router; VRRP uses Master. These are functionally similar but different protocols. VRRP is vendor-neutral; HSRP is Cisco-only.
How important is VRRP on the 200-301 exam?
VRRP falls under the Routing domain of the 200-301 exam. Understanding it in context with related terms like hsrp and fhrp is essential for answering scenario-based questions correctly.