Cisco 4500M Command Reference

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Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
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Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches
errdisable recovery
Defaults Error disable recovery is disabled.
The recovery interval is set to 300 seconds.
Command Modes Configuration
Command History
Usage Guidelines A cause (bpduguard, dtp-flap, link-flap, pagp-flap, udld) is defined as the reason the error-disabled state
occurred. When a cause is detected on an interface, the interface is placed in error-disabled state (an
operational state similar to link-down state). If you do not enable error-disable recovery for the cause,
the interface stays in error-disabled state until a shutdown and no shutdown occurs. If you enable
recovery for a cause, the interface is brought out of error-disabled state and allowed to retry operation
again once all the causes have timed out.
You must enter the shutdown command and then the no shutdown command to recover an interface
manually from error disable.
Examples This example shows how to enable the recovery timer for the BPDU guard error disable cause:
Switch(config)# errdisable recovery cause bpduguard
Switch(config)#
This example shows how to set the timer to 300 seconds:
Switch(config)# errdisable recovery interval 300
Switch(config)#
To enable errdisable recovery for arp-inspection, do the following:
Switch(config)# errdisable recovery cause arp-inspection
Switch(config)# end
Switch# show errdisable recovery
ErrDisable Reason Timer Status
----------------- --------------
udld Disabled
bpduguard Disabled
security-violatio Disabled
channel-misconfig Disabled
vmps Disabled
pagp-flap Disabled
dtp-flap Disabled
link-flap Disabled
l2ptguard Disabled
psecure-violation Disabled
gbic-invalid Disabled
dhcp-rate-limit Disabled
unicast-flood Disabled
storm-control Disabled
arp-inspection Enabled
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.
12.1(19)EW Support for the storm-control feature.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English