set class-of-service pfc-watchdog threshold period

The set class-of-service pfc-watchdog threshold period command configures the period for PFC deadlock occurrences. When PFC watchdog functionality is enabled and the restore mode for a port is set to automatic recovery, and the number of PFC deadlocks reaches the upper limit within the specified period, the PFC function on that port will be disabled. The command set class-of-service pfc-watchdog threshold count <count> can be used to configure the upper limit number of PFC deadlocks occurrences.

The delete class-of-service pfc-watchdog threshold period command deletes the configuration.

Command Syntax

set class-of-service pfc-watchdog threshold period <time>

delete class-of-service pfc-watchdog threshold period

Parameter

Usage Guidelines

When PFC watchdog functionality is enabled and the restore mode for a port is set to automatic recovery, the PFC watchdog continuously monitors the PFC activity on the port. If deadlocks repeatedly occur and the count exceeds the configured threshold within the specified time period, the system determines that the port is in an unstable state and will automatically disable the PFC feature to prevent further network disruption.

Once PFC is disabled, the port will no longer use PFC to manage congestion until it is manually reset by using the following command:

run clear class-of-service interface <interface-name> pfc-watchdog auto

This ensures that persistent deadlocks do not degrade network performance.

Example

• Configure the period for PFC deadlock occurrences.