What Is a LACP?

LACP (Link Aggregation Control Protocol) is a protocol that supports the exchange of link aggregation information between two switches of the said aggregation. This exchange of Link Aggregation control information provides for the mutual confirmation of the link aggregation configuration and the detection of a link failure within the link aggregation group (LAG) by both switches. LACP is defined in IEEE 802.1ax or IEEE 802.3ad.