Networking 101 : Link aggregation or Interface teaming
Link aggregation is a way of grouping two or more physical interfaces into one logical interface, to get more throughput and also to provide a "failover" option in case one of the physical interface fails.
For the logical teaming interface, we use two interfaces on a host "eth0" and "eth1" and we "team" them up.
Creating a "team interface":
We create the logical "teaming" interface as below:
We associate "eth0" and "eth1" with the team interface "team":
Or using the below command, we can check the interfaces: