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Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
78-16201-01
Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches
errdisable detect
errdisable detect
To enable error disable detection, use the errdisable detect command. To disable the error disable
detection feature, use the no form of this command.
errdisable detect cause {all | arp-inspection | dhcp-rate-limit | dtp-flap | gbic-invalid |
l2ptguard | link-flap | pagp-flap}
no errdisable detect cause {all | arp-inspection | dhcp-rate-limit | dtp-flap | gbic-invalid |
l2ptguard | link-flap | pagp-flap}
Syntax Description
Defaults All error disable causes are detected.
Command Modes Global configuration
Command History
Usage Guidelines A cause (dtp-flap, link-flap, pagp-flap) 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).
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 error disable detection for the link-flap error disable cause:
Switch(config)# errdisable detect cause link-flap
Switch(config)#
cause Specifies error disable detection to detect from a specific cause.
all Specifies error disable detection for all error-disable causes.
arp-inspection Specifies detection for the ARP inspection error-disable cause.
dhcp-rate-limit Specifies detection for the DHCP rate limit error-disable cause.
dtp-flap Specifies detection for the DTP flap error-disable cause.
gbic-invalid Specifies detection for the GBIC invalid error-disable cause.
l2ptguard Specifies detection for the Layer 2 protocol-tunnel error-disable cause.
link-flap Specifies detection for the link flap error-disable cause.
pagp-flap Specifies detection for the PAgP flap error-disable cause.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.
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