Clear Errdisable; Command History Release 12.2(52)Sg - Cisco Catalyst 4500 Series Command Reference Manual

clear errdisable

clear errdisable
To re-enable error-disabled VLANs on an interface, use the clear errdisable command.
Syntax Description
interface name
vlan
range
Defaults
This command has no default settings.
Command Modes
Global configuration mode
Command History Release
12.2(52)SG
Usage Guidelines
If a VLAN range is not specified, all VLANs on the specified interface are re-enabled. The clear
errdisable command recovers the disabled VLANs on an interface.
Clearing the error-disabled state from a virtual port does not change the link state of the physical port,
and it does not affect other VLAN ports on the physical port. It does post an event to STP, and spanning
tree goes through its normal process of bringing that VLAN port to the appropriate blocking or
forwarding state.
Examples This example shows how to re-enable a range of disabled VLANs on an interaface:
Switch# clear errdisable interface ethernet2 vlan 10-15
Switch#
Related Commands Command
errdisable detect
show errdisable detect
show interfaces status
switchport port-security
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0SG and IOS 15.1(1)SG)
2-100
clear errdisable interface {name} vlan [range]
Specifies the interface of the VLAN(s) to recover.
Specifies all VLANs on the interface be recovered.
(Optional) Specifies the VLAN range to be recovered.
Modification
Added support for per-VLAN error-disable detection.
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
Description
Enables error-disable detection.
Displays the error-disable detection status.
Displays the interface status or a list of interfaces in
error-disabled state.
Enables port security on an interface.
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