Cisco Catalyst 3550 Command Reference Manual page 114

errdisable recovery
Command Modes
Global configuration
Command History Release
12.1(4)EA1
12.1(8)EA1
12.1(9)EA1
12.1(13)EA1
12.1(19)EA1
Usage Guidelines
A cause (bpduguard, dhcp-rate-limit, dtp-flap, gbic-invalid, l2ptguard, link-flap, loopback,
pagp-flap, psecure-violation, security-violation, udld, vmps) is defined as the reason why 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 errdisable
recovery for the cause, the interface stays in error-disabled state until you enter a shutdown and no
shutdown interface configuration command. If you enable the recovery for a cause, the interface is
brought out of the error-disabled state and allowed to retry the operation again when all the causes have
timed out.
Otherwise, you must enter the shutdown then no shutdown commands to manually recover an interface
from the error-disabled state.
Examples This example shows how to enable the recovery timer for the BPDU guard error-disable cause:
Switch(config)# errdisable recovery cause bpduguard
This example shows how to set the timer to 500 seconds:
Switch(config)# errdisable recovery interval 500
You can verify your settings by entering the show errdisable recovery privileged EXEC command.
Related Commands Command
show errdisable recovery
show interfaces
err-disabled
Catalyst 3550 Multilayer Switch Command Reference
2-88
Modification
This command was first introduced.
The rootguard keyword was deleted.
The gbic-invalid, l2ptguard, and psecure-violation keywords were added.
The channel-misconfig keyword was added.
The dhcp-rate-limit, loopback, security-violation, and vmps keywords
were added.
Description
Displays errdisable recovery timer information.
status Displays interface status or a list of interfaces in error-disabled
state.
Chapter 2 Cisco IOS Commands
78-11195-09