H3C Technologies H3C MSR 5600 User Manual
Page 15
7
Figure 5 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, and returns the virtual MAC
address of Router B in response to the ARP request from Host B. See
.
Figure 6 Answering ARP requests
3.
Each host sends packets to the returned MAC address. As shown in
, Host A sends packets
to Router A and Host B sends packets to Router B.
Gateway IP: 10.1.1.1/24
Gateway IP: 10.1.1.1/24
Virtual MAC: 000f-e2ff-0012
Host A
Host B
Router A
Master
Router B
Backup
Virtual IP: 10.1.1.1/24
Network
Virtual MAC: 000f-e2ff-0011
Allocate Virtual MAC
000f-e2ff-0012 to Router B