Service Manual

Figure 60. 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, congure the mac-address-table
station-move refresh-arp
command on the Dell Networking switch at the time that NIC teaming is being congured on the
server.
NOTE: If you do not congure the mac-address-table station-move refresh-arp command, trac continues
to be forwarded to the failed NIC until the ARP entry on the switch times out.
Figure 61. Conguring the mac-address-table station-move refresh-arp Command
Congure 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
Layer 2
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