Cisco Systems Configuring Cisco Err-Disabled Auto Recovery for Layer 2 Interfaces

Configuring Layer 2 Interfaces

Enabling the Error-Disabled Recovery

	Command or Action
Step 4	no shutdown

Example:

switch(config)# no shutdown switch(config)#

Purpose

Brings the interface up administratively and enables the interface to recover manually from the err-disabled state.

Step 5	show interface status err-disabled	Displays information about err-disabled
		interfaces.
	Example:
	switch(config)# show interface status
	err-disabled
Step 6	copy running-config startup-config	(Optional) Copies the running configuration to
		the startup configuration.
	Example:
	switch(config)# copy running-config
	startup-config

This example shows how to enable the err-disabled detection in all cases:

switch(config)#errdisable detect cause all switch(config)#

Enabling the Error-Disabled Recovery

You can specify the application to bring the interface out of the error-disabled (err-disabled) state and retry coming up. It retries after 300 seconds, unless you configure the recovery timer (see the errdisable recovery interval command).

Procedure

	Command or Action	Purpose
Step 1	config t	Enters configuration mode.
	Example:
	switch#config t
	switch(config)#

Step 2 errdisable recovery cause {all udld bpduguard link-flap failed-port-state pause-rate-limit}

Example:

switch(config)#errdisable recovery cause all

switch(config-if)#

Specifies a condition under which the interface automatically recovers from the err-disabled state, and the device retries bringing the interface up. The device waits 300 seconds to retry. The default is disabled.

Cisco Nexus 5000 Series NX-OS Interfaces Configuration Guide, Release 5.2(1)N1(1)

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