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4-4-3. LACP
The Link Aggregation Control Protocol (LACP) provides a standardized
means for exchanging information between Partner Systems on a link to
allow their Link Aggregation Control instances to reach agreement on the
identity of the Link Aggregation Group to which the link belongs, move the link
to that Link Aggregation Group, and enable its transmission and reception
functions in an orderly manner. Link aggregation lets you group up to eight
consecutive ports into a single dedicated connection. This feature can expand
bandwidth to a device on the network. LACP operates in full-duplex mode
only. For more details on the protocol, refer to IEEE 802.3ad standard.