Channel-Protocol - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

channel-protocol

To enable LACP or PAgP on an interface, use the channel-protocol command. To disable the protocols,
use the no form of this command.
Syntax Description
lacp
pagp
Defaults
pagp
Command Modes
Interface configuration mode
Command History Release
12.1(13)EW
Usage Guidelines
You can also select the protocol using the
If the interface belongs to a channel, the no form of this command is rejected.
All ports in an EtherChannel must use the same protocol; you cannot run two protocols on one module.
PAgP and LACP are not compatible; both ends of a channel must use the same protocol.
You can manually configure a switch with PAgP on one side and LACP on the other side in the on mode.
You can change the protocol at any time, but this change causes all existing EtherChannels to reset to
the default channel mode for the new protocol. You can use the channel-protocol command to restrict
anyone from selecting a mode that is not applicable to the selected protocol.
Configure all ports in an EtherChannel to operate at the same speed and duplex mode (full duplex only
for LACP mode).
For a complete list of guidelines, refer to the "Configuring EtherChannel" section of the Catalyst 4500
Series Switch Cisco IOS Software Configuration Guide.
Examples
This example shows how to select LACP to manage channeling on the interface:
Switch(config-if)# channel-protocol lacp
Switch(config-if)#
OL-25342 -01
channel-protocol {lacp | pagp}
no channel-protocol {lacp | pagp}
Enables LACP to manage channeling.
Enables PAgP to manage channeling.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0SG and IOS 15.1(1)SG)
channel-group command.
channel-protocol
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