Configure Redundant Pairs - Dell S4048–ON Configuration Manual

S-series 10gbe switches

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Figure 73. 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 configured on the Dell Networking switch at the time that NIC teaming

is being configured on the server.

NOTE: If you have configured the no 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.

Figure 74. Configuring the mac-address-table station-move refresh-arp Command

Configure 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