What are the supported channel-group numbers for port channels?

The range of supported channel-group numbers for port channels in Cisco networking devices is from 1 to 4096. This range accommodates the need for multiple port channels to be configured on a device, enabling the aggregation of several physical interfaces into a single logical channel.

Port channel configuration allows for improved bandwidth and redundancy, as traffic can be distributed across multiple physical links. The design choice to allow up to 4096 channel groups provides flexibility for network engineers to create numerous port channels as needed for robust network designs, especially in larger or more complex networks.

While the other ranges listed might seem plausible, they do not reflect the actual maximum defined by Cisco for channel-group numbers. Understanding these specifics can help when configuring and troubleshooting EtherChannel configurations in real-world scenarios.