Interface Port-Channel - Cisco 4500M Command Reference Manual

2 2
Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches

interface port-channel

To access or create a port channel interface, use the interface port-channel command.
Syntax Description
channel-group
Defaults
This command has no default settings.
Command Modes
Global configuration
Command History Release
12.1(8a)EW
Usage Guidelines
You do not have to create a port channel interface before assigning a physical interface to a channel
group. A port channel interface is created automatically when the channel group gets its first physical
interface, if it is not already created.
You can also create port channels by entering the
Layer 3 port channel. To change the Layer 3 port channel into a Layer 2 port channel, use the
command before you assign physical interfaces to the channel group. A port channel cannot be changed
from Layer 3 to Layer 2 or vice versa when it contains member ports.
Only one port channel in a channel group is allowed.
Caution
The Layer 3 port channel interface is the routed interface. Do not enable Layer 3 addresses on the
physical Fast Ethernet interfaces.
If you want to use CDP, you must configure it only on the physical Fast Ethernet interface and not on
the port-channel interface.
Examples
This example creates a port channel interface with a channel group number of 64:
Switch(config)# interface port-channel 64
Switch(config)#
Related Commands
channel-group
show etherchannel
78-16201-01
interface port-channel channel-group
Port channel group number; valid values are from 1 to 64.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
interface port-channel command. This will create a
interface port-channel
switchport
2-107