https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/xe-16-8/fhp-xe-16-8-book/fhrp-vrrpv3-obj-trk.html
First Hop Redundancy Protocols Configuration Guide, Cisco IOS XE Fuji 16.8.x - VRRPv3: Object...
VRRPv3: Object Tracking Integration