Channel-Protocol - Cisco Catalyst 3550 Command Reference Manual

channel-protocol

channel-protocol
Use the channel-protocol interface configuration command to configure an EtherChannel for the Port
Aggregation Protocol (PAgP) or Link Aggregation Control Protocol (LACP). Use the no form of this
command to disable PAgP or LACP on the EtherChannel.
Syntax Description
lacp
pagp
Defaults No protocol is assigned to the EtherChannel.
Command Modes
Interface configuration
Command History Release
12.1(12c)EA1
Usage Guidelines
Use the channel-protocol command only to restrict a channel to LACP or PAgP.
You must use the channel-group interface command to configure the EtherChannel parameters. The
channel-group command can also set the EtherChannel for a channel.
You cannot enable both PAgP and LACP modes on an EtherChannel group.
Note
Do not enable Layer 3 addresses on the physical EtherChannel interfaces. To prevent loops, do not assign
Caution
bridge groups on the physical EtherChannel interfaces.
Examples
This example shows how to set an EtherChannel into PAgP mode:
Switch(config-if)# channel-protocol pagp
This example shows how to set an EtherChannel into LACP mode:
Switch(config-if)# channel-protocol lacp
You can verify your settings by entering the show running-config privileged EXEC command.
Catalyst 3550 Multilayer Switch Command Reference
2-30
channel-protocol {lacp | pagp}
no channel-protocol
Modification
This command was first introduced.
Configure an EtherChannel with the LACP protocol.
Configure an EtherChannel with the PAgP protocol.
Chapter 2 Cisco IOS Commands
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