Creating Port Channels

A port channel, also known as a LAG (Link Aggregation Group), allows you to combine multiple full-duplex Ethernet links into a single logical link. Network devices treat the aggregation as if it were a single link, which increases fault tolerance and provides load sharing. You assign the port channel LAG VLAN membership after you create a port channel. The port channel by default becomes a member of the management VLAN.

A port channel (LAG) interface can be either static or dynamic, but not both. All members of a port channel must participate in the same protocols. A static port channel interface does not require a partner system to be able to aggregate its member ports.

Note

If you configure the maximum number of dynamic port channels (LAGs) that your platform supports, additional port channels that you configure are automatically static.

Static LAGs are supported. When a port is added to a LAG as a static member, it neither transmits nor receives LACPDUs.