Spanning-Tree Etherchannel Guard Misconfig - Cisco ME 3400 Command Reference Manual

Ethernet access switch

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spanning-tree etherchannel guard misconfig

Use the spanning-tree etherchannel guard misconfig global configuration command to display an

error message when the switch detects an EtherChannel misconfiguration. Use the no form of this

command to disable the feature.

Syntax Description

This command has no arguments or keywords.

EtherChannel guard is enabled on the switch.

Command Modes

Global configuration

Command History

Usage Guidelines

Spanning Tree Protocol (STP) is not supported on user network interfaces (UNIs). This command affects

only network node interfaces (NNIs) or enhanced network interfaces (ENIs) on which STP has been

enabled. To set a port as an NNI or ENI, enter the port-type {nni | eni} interface configuration

command. To enable STP on an ENI, enter the spanning-tree interface configuration command.

When the switch detects an EtherChannel misconfiguration, this error message appears:

PM-4-ERR_DISABLE: Channel-misconfig error detected on [chars], putting [chars] in

err-disable state.

To show switch ports that are in the misconfigured EtherChannel, 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.

This example shows how to enable the EtherChannel guard misconfiguration feature:

Switch(config)# spanning-tree etherchannel guard misconfig

You can verify your settings by entering the show spanning-tree summary privileged EXEC command.

Cisco ME 3400 Ethernet Access Switch Command Reference

spanning-tree etherchannel guard misconfig

no spanning-tree etherchannel guard misconfig

Modification

This command was introduced.

Chapter 2 Cisco ME 3400 Ethernet Access Switch Cisco IOS Commands