Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Command Reference
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Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
interface port-channel
• If you do not assign a static MAC address on the port-channel interface, a MAC address is
automatically assigned. If you assign a static MAC address and then later remove it, the MAC
address is automatically assigned.
• Before enabling IEEE 802.1x authentication on a port, you must first remove it from the
EtherChannel. If you try to enable IEEE 802.1x authentication on an EtherChannel or on an active
port in an EtherChannel, an error message appears, and IEEE 802.1x authentication is not enabled.
Examples This example shows how to create a port-channel interface with a port channel number of 5:
Switch(config)# interface port-channel 5
You can verify your setting by entering the show running-config privileged EXEC or show
etherchannel channel-group-number detail privileged EXEC command.
Related Commands Command Description
channel-group Assigns an Ethernet interface to an EtherChannel group.
show etherchannel Displays EtherChannel information for a channel.
show running-config Displays the current operating configuration. For syntax information, select
Cisco IOS Release 12.2 Configuration Guides and Command References >
Cisco IOS Configuration Fundamentals Command Reference, Release
12.2 > File Management Commands > Configuration File Management
Commands.