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Configuring EtherChannels
How to Configure EtherChannels
How to Configure EtherChannels
Note: After you configure an EtherChannel, configuration changes applied to the port-channel interface apply to all the
physical ports assigned to the port-channel interface, and configuration changes applied to the physical port affect only
the port where you apply the configuration.
Configuring Layer 2 EtherChannels
You configure Layer 2 EtherChannels by assigning ports to a channel group with the channel-group interface
configuration command. This command automatically creates the port-channel logical interface.
This required task explains how to configure a Layer 2 Ethernet port to a Layer 2 EtherChannel.
Command Purpose
1. configure terminal Enters global configuration mode.
2. interface interface-id Specifies a physical port, and enter interface configuration
mode.
Valid interfaces include physical ports.
For a PAgP EtherChannel, you can configure up to eight ports of
the same type and speed for the same group.
For a LACP EtherChannel, you can configure up to 16 Ethernet
ports of the same type. Up to eight ports can be active, and up
to eight ports can be in standby mode.