Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
spanning-tree etherchannel guard misconfig
spanning-tree etherchannel guard misconfig
To display an error message when a loop due to a channel misconfiguration is detected, use the
spanning-tree etherchannel guard misconfig command. To disable the feature, use the no form of this
command.
spanning-tree etherchannel guard misconfig
no spanning-tree etherchannel guard misconfig
Syntax Description This command has no arguments or keywords.
Defaults Spanning-tree EtherChannel guard is enabled.
Command Modes Global configuration mode
Command History
Usage Guidelines When an EtherChannel guard misconfiguration is detected, this message is displayed:
%SPANTREE-2-CHNL_MISCFG:Detected loop due to etherchannel misconfig of interface
Port-Channel1
To determine which local ports are involved in the misconfiguration, enter the show interfaces status
err-disabled command. To verify the EtherChannel configuration on the remote device, enter the show
etherchannel summary command on the remote device.
After you correct the configuration, enter the shutdown and the no shutdown commands on the
associated port-channel interface.
Examples This example shows how to enable the EtherChannel guard misconfiguration feature:
Switch(config)# spanning-tree etherchannel guard misconfig
Switch(config)#
Related Commands
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.
Command Description
show etherchannel Displays EtherChannel information for a channel.
show interfaces status Displays the interface status or a list of interfaces in
error-disabled state.
shutdown (refer to Cisco IOS
documentation)
Disables a port.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E