EtherChannels

An 802.3ad EtherChannel is a logical interface, called a port-channel interface) that consists of a bundle of individual Ethernet links, known as a channel group. This approach increases the bandwidth for a single network. A port channel interface is used in the same way as a physical interface when you configure interface-related features.

You can configure up to 48 EtherChannels, depending on how many interfaces your model supports.