Wikipedia
In computer networking, link aggregation is the combining (aggregating) of multiple network connections in parallel by any of several methods, in order to increase throughput beyond what a single connection could sustain, to provide redundancy in case one of the links should fail, or both A link aggregation group (LAG) is the combined collection of physical ports Other umbrella terms used to describe the concept include trunking, bundling, bonding, channeling or teaming Implementation may follow vendor-independent standards such as Link Aggregation Control Protocol (LACP) for Ethernet, defined in IEEE 8021AX or the previous IEEE 8023ad, but also proprietary protocols
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