Specifications

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Catalyst 4500 Se ries S wit ch C is co IO S C om mand R efer ence —Re lease I OS XE 3 .3.0 XO(1 5.1 (1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
errdisable recovery
Defaults Error disable rec overy is disabled.
The recovery interval is set to 300 seconds .
Command Modes Global configura tion mode
Usage Guidelines A cause (bpduguard, dtp-flap, l ink-flap , pagp-fl ap, udld) i s defined as the r eason why the erro r-disabled
state occurred. When a cause is detected on an interface, the interface is placed in error-disabled state
(an operational state that is similar to the link-down state). If you do not enable error-disable rec overy
for the cause, the interface stays in the error-disabled state until a shutd own and no shutdown occurs. If
you enable recovery for a cause, the int erface is brought out of the erro r-disabled state and allow ed 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 disa ble 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)#
This example shows how to enable the errdisable recovery for arp-inspection:
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
Timer interval: 300 seconds
Interfaces that will be enabled at the next timeout:
Switch#