Configuration restrictions and guidelines

The following information describes restrictions and guidelines that you must follow when you configure link aggregations.

Aggregation member interface restrictions

Layer 3 Ethernet subinterface restrictions

For a Layer 3 aggregate interface, the member interfaces in the aggregation group must be Layer 3 Ethernet interfaces or subinterfaces, but not both.

If you are assigning a Layer 3 Ethernet interface to an aggregation group, make sure it does not have subinterfaces. You cannot create subinterfaces on a Layer 3 Ethernet interface after it is assigned to an aggregation group.

If you are assigning a Layer 3 Ethernet subinterface to an aggregation group, follow these restrictions and guidelines:

For a Layer 3 aggregate interface, aggregate subinterfaces and Layer 3 subinterfaces cannot coexist.

Configuration consistency requirements

Miscellaneous

Deleting an aggregate interface also deletes its aggregation group and causes all member ports to leave the aggregation group.