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Catalyst 3550 Multilayer Switch Command Reference
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Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
spanning-tree etherchannel guard misconfig
spanning-tree etherchannel guard misconfig
Use the spanning-tree etherchannel guard misconfig global configuration command to display an
error message when the switch detects a loop that occurred because of an EtherChannel
misconfiguration. Use the no form of this command to disable the feature.
spanning-tree etherchannel guard misconfig
no spanning-tree etherchannel guard misconfig
Syntax Description This command has no arguments or keywords.
Defaults EtherChannel guard is enabled on the switch.
Command Modes Global configuration
Command History
Usage Guidelines When the switch detects a loop that is caused by an EtherChannel misconfiguration, this error message
appears:
PM-4-ERR_DISABLE: Channel-misconfig error detected on [chars], putting [chars] in
err-disable state.
To determine which switch ports are in EtherChannel misconfiguration, use the show interfaces status
err-disabled privileged EXEC command. To verify the EtherChannel configuration on a remote device,
use the show etherchannel summary privileged EXEC command on the remote device.
When a port is in the error-disabled state because of an EtherChannel misconfiguration, you can bring
it out of this state by entering the errdisable recovery cause channel-misconfig global configuration
command, or you can manually re-enable it by entering the shutdown and no shut down interface
configuration commands.
Examples This example shows how to enable the EtherChannel guard feature:
Switch(config)# spanning-tree etherchannel guard misconfig
You can verify your settings by entering the show spanning-tree summary privileged EXEC command.
Release Modification
12.1(13)EA1 This command was introduced.
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