1-11 Link Aggregation and LACP ConfigurationOverviewLink aggregation aggregates multiple physical Ethernet ports into one logical link, also called anaggregation group.It allows you to increase bandwidth by distributing traffic across the member ports in the aggregationgroup. In addition, it provides reliable connectivity because these member ports can dynamically backup each other.Basic Concepts of Link AggregationAggregate interfaceAn aggregate interface is a logical Layer 2 or Layer 3 aggregate interface.The current device only supports Layer 2 aggregation interface.Aggregation groupAn aggregation group is a collection of Ethernet interfaces. When you create an aggregate interface, anaggregation group numbered the same is created automatically depending on the type of the aggregateinterface:z If the aggregate interface is a Layer 2 interface, a Layer 2 aggregation group is created. You canassign only Layer 2 Ethernet interfaces to the group.z If the aggregate interface is a Layer 3 interface, a Layer 3 aggregation group is created. You canassign only Layer 3 Ethernet interfaces to the group.The current device only supports Layer 2 aggregation groupStates of the member ports in an aggregation groupA member port in an aggregation group can be in one of the following two states:z Selected: a selected port can forward user traffic.z Unselected: an unselected port cannot forward user traffic.
