EtherChannel

Combine multiple physical links into one logical connection with EtherChannel to increase bandwidth, provide redundancy, and simplify network management.

Why EtherChannel Matters

EtherChannel is a powerful technology that enhances both performance and reliability in switched networks. Instead of relying on a single link between devices, EtherChannel groups several physical interfaces into one logical channel. This increases available bandwidth and provides link redundancy, ensuring that traffic continues to flow even if one cable fails.

Configuring EtherChannel

In this topic, you’ll learn how to configure EtherChannel using static mode or dynamic negotiation protocols like LACP and PAgP. You’ll also explore Layer 3 EtherChannel, which extends these benefits to routed environments, allowing for efficient load balancing and fault tolerance across network paths.

Scalability and Resilience

Mastering EtherChannel will help you design networks that are both scalable and resilient. Understanding this concept will also strengthen your foundation for related technologies such as Spanning Tree Protocol and VLAN Trunking, where link aggregation plays a key role in optimizing performance and stability.