Specifying a link aggregation management subnet

By default, when an aggregate interface receives an ARP packet, the aggregate interface will create the corresponding ARP entry. When the aggregate interface receives packets with the matching destination address, the packets are load shared among all Selected ports of the aggregate interface.

To manage traffic with the specified destination addresses, you can specify a link aggregation management subnet.

When a subnet is specified and an aggregate interface receives an ARP packet of the subnet, the device uses the IP address of the packet to match ARP entries.

• If no match is found, the aggregate interface creates an ARP entry only on the member port receiving the packet. Then, packets that access the subnet through the aggregate interface are forwarded through the specified member port and are not load shared.

• If a MAC address moves, the output interface of the matching ARP entry changes. The device does not update the ARP entry. Instead, the device sends the ARP request throughout the network, and the ARP entry for the MAC address is re-learned.

When an aggregate interface sends ARP requests of the specified subnet, the requests are sent out of all member ports of the aggregate interface.

To specify a link aggregation management subnet: