Interface Port-Channel - Cisco Catalyst 3560-X Command Reference Manual

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interface port-channel

Syntax Description

Command Modes

Command History

Usage Guidelines

Catalyst 3750-X and 3560-X Switch Command Reference

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Use the interface port-channel global configuration command on the switch stack or on a standalone

switch to access or create the port-channel logical interface. Use the no form of this command to remove

the port-channel.

interface port-channel port-channel-number

no interface port-channel port-channel-number

port-channel-number

Port-channel number. The range is 1 to 48.

No port-channel logical interfaces are defined.

Global configuration

Modification

This command was introduced.

For Layer 2 EtherChannels, you do not have to create a port-channel interface first before assigning a

physical port to a channel group. Instead, you can use the channel-group interface configuration

command. It automatically creates the port-channel interface when the channel group gets its first

physical port. If you create the port-channel interface first, the channel-group-number can be the same

as the port-channel-number, or you can use a new number. If you use a new number, the channel-group

command dynamically creates a new port channel.

You create Layer 3 port channels by using the interface port-channel command followed by the no

switchport interface configuration command. You should manually configure the port-channel logical

interface before putting the interface into the channel group.

Only one port channel in a channel group is allowed.

When using a port-channel interface as a routed port, do not assign Layer 3 addresses on the physical

ports that are assigned to the channel group.

Do not assign bridge groups on the physical ports in a channel group used as a Layer 3 port-channel

interface because it creates loops. You must also disable spanning tree.

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