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Connectivity Guide

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When the detect cause option is enabled, the port is shut down whenever there is a BPDU guard
violation.
When the option is disabled, the port is not shut down but moved to BLOCKING state whenever there is
a BPDU guard violation. In this case, the port is operationally DOWN in spanning-tree mode and when the
recovery timer expires, the port is UP irrespective of the recovery cause configuration.
The no version of the command disables the detect cause option.
Example
OS10(config)# errdisable detect cause bpduguard
Supported
Releases
10.4.2.0 or later
errdisable recovery cause bpduguard
Enables to recover the ports shut down due to BPDU Guard violation.
Syntax
errdisable recovery cause bpduguard
Parameters None
Default Disabled
Command Mode CONFIGURATION
Usage
Information
This command applies only to STP-enabled ports. The command takes effect only when BPDU guard is
configured on a port and errdisable detect cause bpduguardis enabled on the port.
When the recovery option is enabled, the port is brought up after the recovery timer expires.
When the recovery option is disabled, the port is shut down indefinitely. You must manually bring up the
port using the shutdown and no shutdown commands.
The no version of the command disables the recovery option.
Example
OS10(config)# errdisable recovery cause bpduguard
Supported
Releases
10.4.2.0 or later
errdisable recovery interval
Configures recovery interval timer to delay the recovery of ports when there is a BPDU Guard violation.
Syntax
errdisable recovery interval interval-value
Parameters interval-value—Enter the time interval in seconds. The range is from 30 to 65535.
Default 300 seconds
Command Mode CONFIGURATION
Usage
Information
This command applies only to STP-enabled ports. The command takes effect only when BPDU guard is
configured on a port.
The recovery timer starts whenever there is a BPDU guard violation.
The no version of the command resets the timer to default value.
Example
OS10(config)# errdisable recovery interval 45
Supported
Releases
10.4.2.0 or later
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