New topicLink-Flap Detection Syslog Messages

If you've configured link-flap detection to send log messages, the following messages are sent after excessive flapping:

  • If the threshold is exceeded, and the log action is set, and the disable port action is not set, then a log message similar to the following appears:
    03/31/2016 15:56:36.52 <Noti:vlan.msgs.PortLinkFlapActLogEvent> Port 1 link-flap detection operational status is UP. Link has flapped more than 3 times in 60 seconds. 
  • If the log action and disable port action are set, and the threshold is exceeded, then a log message similar to the following appears:
    03/31/2016 15:51:13.61 <Noti:vlan.msgs.PortLinkFlapActLogEvent> Port 2 link-flap detection operational status is DOWN. Link has flapped more than 3 times in 60 seconds. 
  • This log message appears when all of the following conditions are met:
    • Disable port action is set on a port.
    • The number of link-flaps on the port exceeds the threshold.
    • You issue the command enable log debug-mode.
    • You add the event to the log filter (for example: "conf log filter "DefaultFilter" add events vlan.msgs.PortLinkFlapActDsblPort")
    03/31/2016 15:51:13.61 <Summ:vlan.msgs.PortLinkFlapActDsblPort> Port 2 is disabled for excessive link flapping. Link has flapped more than 3 times in 60 seconds.