Nic Teaming - Dell C9000 Series Networking Configuration Manual

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NIC Teaming

NIC teaming is a feature that allows multiple network interface cards in a server to be represented by one

MAC address and one IP address in order to provide transparent redundancy, balancing, and to fully utilize

network adapter resources.

The following illustration shows a topology where two NICs have been teamed together. In this case, if the

primary NIC fails, traffic switches to the secondary NIC because they are represented by the same set of

Figure 69. 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.