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Catalyst 3750-X and 3560-X Switch Command Reference
OL-29704-01
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
interface port-channel
interface port-channel
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
Syntax Description
Defaults No port-channel logical interfaces are defined.
Command Modes Global configuration
Command History
Usage Guidelines 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.
Caution 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.
Caution 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.
port-channel-number Port-channel number. The range is 1 to 48.
Release Modification
12.2(53)SE2 This command was introduced.
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