EtherChannel allows switches to bundle multiple physical Ethernet links into one logical connection called a Port-Channel. In this video, we explain why switches use EtherChannel, how it helps with bandwidth and redundancy, how it works with Spanning Tree, and why it is not simply “one big cable” for every single traffic flow.
We cover link aggregation, Port-Channels, STP, bottlenecks, redundancy, LACP, PAgP, and common EtherChannel misunderstandings.