This read-write InetAddress object specifies the destination IP address of the vPC peer device that keepalive hello messages are sent to, with its format determined by cVpcPeerKeepAliveDestAddrType. Administrators configure this to establish the out-of-band path used to detect whether the vPC peer switch is still alive, which is critical for split-brain (dual-active) detection in a vPC domain. For example, misconfiguring this destination address would cause peer-keepalive messages to never reach the actual peer switch, risking an undetected dual-active condition if the peer-link itself also fails.