HPE FlexNetwork HSR6800 series Configuration Manual page 146

1. The master assigns virtual MAC addresses to all members, including itself. This example
assumes that the virtual IP address of the VRRP group is 10.1.1.1/24, Router A is the master,
and Router B is the backup. Router A assigns 000f-e2ff-0011 to itself and 000f-e2ff-0012 to
Router B.
Figure 39 Virtual MAC address assignment
2. When an ARP request arrives, the master (Router A) selects a virtual MAC address based on
the load balancing algorithm to answer the ARP request. In this example, Router A returns the
virtual MAC address of itself in response to the ARP request from Host A. It returns the virtual
MAC address of Router B in response to the ARP request from Host B (see
Figure 40 Answering ARP requests
Virtual MAC: 000f-e2ff-0011
ARP request
Target IP: 10.1.1.1/24
Gateway IP: 10.1.1.1/24
Host A
3. Each host sends packets to the returned MAC address. As shown in
packets to Router A and Host B sends packets to Router B.
Network
Router A
Master
Virtual IP: 10.1.1.1/24
ARP reply
Target MAC: 000f-e2ff-0011
139
Router B
Backup
Virtual MAC: 000f-e2ff-0012
ARP request
Target IP: 10.1.1.1/24
Host B
Figure 40).
ARP reply
Target MAC: 000f-e2ff-0012
Gateway IP: 10.1.1.1/24
Figure 41, Host A sends