Operation Manual – VRRPH3C S5600 Series Ethernet Switches Chapter 1 VRRP Configuration1-8z A backup starts the advertisement interval timer after it receives the advertisementto wait for the next one from the master. If the backup does not receive VRRPadvertisements from the master after the timer expires, it considers that themaster fails and starts the election process to elect a new master for forwardingpackets.1.1.6 Periodical sending of ARP packets in a VRRP GroupIf a VRRP group exists on a network, the master sends gratuitous ARP packetsperiodically to hosts on the network, which then update their local ARP tables, ensuringthat no device on this network uses the same IP address with the VRRP virtual router.As you can create mappings between the IP address and MAC address of the VRRPvirtual router, there are two cases:z If the IP address of the virtual router corresponds to a virtual MAC address, thesource MAC address in the gratuitous ARP packet will be the virtual MAC address.z If the IP address of the virtual router corresponds to an actual MAC address, thesource MAC address in the gratuitous ARP packet will be the VLAN interface’sMAC address of the master in the VRRP group.Note:For more information about ARP, refer to the ARP section in the part discussingARP-MFF in this manual.1.2 VRRP Configuration1.2.1 Configuring Basic VRRP FunctionsFollow these steps to configure the basic VRRP functions:To do… Use the command… RemarksEnter system view system-view —Configure response of thevirtual router to the pingoperationsvrrp ping-enableOptionalBy default, the virtual IPaddress cannot bepinged.Map the virtual router IPaddress to a MACaddressvrrp method { real-mac |virtual-mac }OptionalBy default, the virtual IPaddress of a VRRP groupis mapped to the virtualMAC address.
