Administrator Guide

Figure 55. Redundant NICs with NIC Teaming
When you use NIC teaming, consider that the server MAC address is originally learned on Port 0/1 of the
switch (shown in the following) and Port 0/5 is the failover port. When the NIC fails, the system
automatically sends an ARP request for the gateway or host NIC to resolve the ARP and refresh the egress
interface. When the ARP is resolved, the same MAC address is learned on the same port where the ARP is
resolved (in the previous example, this location is Port 0/5 of the switch). To ensure that the MAC address
is disassociated with one port and re-associated with another port in the ARP table, configure the mac-
address-table station-move refresh-arp
command on the Dell Networking switch at the time
that NIC teaming is being configured on the server.
NOTE: If you do not configure the mac-address-table station-move refresh-arp
command, traffic continues to be forwarded to the failed NIC until the ARP entry on the switch
times out.
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