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Download EPUBPort Link-Flap Detection
- Disables port—After the port is disabled due to excessive link flapping, the port either stays down for the configured disable time value or can be re-enabled manually.
- Reports issue to Syslog—Adds an entry in the log for a link down event.
- Generates SNMP trap—SNMP trap generated for a link down event.
You can configure the interval, threshold (maximum number of link down events), and disable time; and which of the preceding actions to take on a per port basis.
Supported Platforms
Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X620, X440-G2 series switches
New CLI Commands
configure ports [port_list | all] link-flap-detection [on | off]
configure ports [port_list | all] link-flap-detection [{interval [interval | indefinitely]} {threshold threshold} {disable-time [disable_time | untilcleared]}]
unconfigure ports [port_list | all] link-flap-detection {interval} {threshold} {disable-time}
configure ports [port_list | all] link-flap-detection action [add | delete] [{{disable-port} {log} {trap}} | all-actions]
clear ports [port_list | all] link-flap-detection status
clear ports [port_list | all] link-flap-detection counters
show ports [port_list | all] link-flap-detection [disabled-ports | configuration | counters {refresh | no-refresh}]
Changed CLI Commands
The following show commands are changed to provide link-flap detection information:
show ports {port_list | tag tag} {no-refresh | refresh}
show port {mgmt | port_list | tag tag} information {detail}