Aggregation group, member port, and aggregate interface
An aggregation group is a group of Ethernet interfaces bundled together. These Ethernet interfaces are called member ports of the aggregation group. Each aggregation group has a corresponding logical interface (called an aggregate interface).
When an aggregate interface is created, the device automatically creates an aggregation group of the same type and number as the aggregate interface.
An aggregate interface can be one of the following types:
Layer 2—A Layer 2 aggregate interface is created manually. The member ports of the corresponding Layer 2 aggregation group can only be Layer 2 Ethernet interfaces.
Layer 3—A Layer 3 aggregate interface is created manually. The member ports of the corresponding Layer 3 aggregation group can only be Layer 3 Ethernet interfaces.
On a Layer 3 aggregate interface, you can create subinterfaces.
The port rate of an aggregate interface equals the total rate of its Selected member ports. Its duplex mode is the same as that of the Selected member ports. For more information about Selected member ports, see "Aggregation states of member ports in an aggregation group."