Considering it is private i would say security?
Answer:
Link Aggregation Control Protocol
Explanation:
Link Aggregation Control Protocol can be used to assist in the formation of port channel bundles of physical links.
Link Aggregation Control Protocol is an IEEE standard defined in IEEE 802.3ad. LACP lets devices send Link Aggregation Control Protocol Data Units (LACPDUs) to each other to establish a link aggregation connection.
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