MLAG is an advanced link aggregation technology that enables a device (such as a server or switch) to connect to two independent switches simultaneously. To the connected device, these two switches appear as a single logical system. Link aggregation increases total bandwidth beyond what a single connection could sustain, and provides redundancy where all but one of the physical links. An aggregation layer usually comprises a few blocks of two switches in MCLAG. By design, it therefore provides resiliency because it will always be deployed in pairs of switches and comes with a recommendation to deploy only dual hot swappable power supplies and redundant fans in each switch to. Switch aggregation, also known as link aggregation or trunking, is a method used in computer networking to combine (aggregate) multiple network connections in parallel. Imagine transforming multiple network cables into one giant, super-speed "data highway. " That's exactly what link aggregation does.
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