A network administrator is analyzing first-hop router redundancy protocols. What is a characteristic of VRRPv3?

Characteristic of VRRPv3

Virtual Router Redundancy Protocol version 3 (VRRPv3) is an IETF standard designed to increase the availability of the default gateway serving hosts on the same subnet. One key characteristic of VRRPv3 is its support for IPv6. This version of the protocol is specifically designed to work with both IPv4 and IPv6 addresses, allowing for improved redundancy in modern network environments where both IP versions are in use.

Additional Details

1. Redundancy and High Availability: VRRPv3 allows multiple routers to work together to present the appearance of a single virtual router to the hosts on a subnet. This minimizes downtime since hosts will automatically switch to a backup router if the primary fails.

2. Priority Levels: Routers participating in VRRPv3 can be assigned different priority levels. The router with the highest priority becomes the master, while others act as backups. In the event the master router fails, the one with the next highest priority takes over.

3. Preemption: VRRPv3 supports preemption, which means that if a higher priority router comes online, it can take over as the master router from a lower priority one, thus maintaining optimal network performance.

In summary, VRRPv3 enhances gateway redundancy by catering to both IPv4 and IPv6, thus providing a modern solution for increasing network resilience and reliability.