Concept Guide
Figure 61. 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 reassociated with another port in the ARP table, the no mac-address-table station-move refresh-arp command
should not be congured on the Dell EMC Networking switch at the time that NIC teaming is being congured on the server.
NOTE
: If you have congured the no mac-address-table station-move refresh-arp command, trac continues to
be forwarded to the failed NIC until the ARP entry on the switch times out.
Figure 62. Conguring the mac-address-table station-move refresh-arp Command
Congure Redundant Pairs
Networks that employ switches that do not support the spanning tree protocol (STP) — for example, networks with digital subscriber line
access multiplexers (DSLAM) — cannot have redundant links between switches because they create switching loops (as shown in the
Layer 2
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