A network engineer needs to design a highly available data center to meet these requirements:
• ensure network resilience
• reduce network instability for Layer 3 gateway devices
• provide interoperability in multivendor environments
• support IPv4 and IPv6 address families
Which FHRP meets these requirements?
To meet the requirements of ensuring network resilience, reducing network instability for Layer 3 gateway devices, providing interoperability in multivendor environments, and supporting both IPv4 and IPv6 address families, VRRPv3 is the most suitable FHRP. VRRPv3 supports both IPv4 and IPv6 address families and provides the needed interoperability and resilience in a multivendor environment. HSRP and HSRPv2 do not offer the same level of support for IPv6. VRRP (without the version specified) typically refers to VRRPv2, which does not support IPv6.
It is my understanding that IPv6 virtual routers support only VRRPv3. The default is version 2 which only supports IPv4 addresses.