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Understanding Virtual Chassis Port Link Aggregation

Note:

This topic applies to all EX Series and QFX Series Virtual Chassis, except for EX8200 Virtual Chassis. See Understanding Virtual Chassis Port Link Aggregation in an EX8200 Virtual Chassis for information about EX8200 Virtual Chassis link aggregation.

Within a Virtual Chassis, you can combine physical Ethernet ports to form a logical point-to-point link known as a link aggregation group (LAG) or bundle. The interfaces that are included in a LAG are sometimes referred to as member interfaces. Do not confuse this term with member switches, which refers to switches that are interconnected into a Virtual Chassis. A LAG in a Virtual Chassis can be composed of member interfaces located in different member switches in the Virtual Chassis, or composed of multiple redundant Virtual Chassis Port (VCP) links between two member switches in the Virtual Chassis, as described in the following sections.