Displays the link-flap detection status for ports.
ports | Physical ports. |
port_list | List of ports that you want to see link-flap detection information. |
all | Shows link-flap detection information for all ports in the system. |
disabled-ports | Displays ports disabled due to excessive link flapping. |
configuration | Displays link-flap detection configuration information: link-flap detection enabled status, link-flap detection actions enabled, threshold value, interval value. |
counters | Displays counters related to link flapping. |
refresh | Continuous refresh of output (default). |
no-refresh | Page by page display without continuous refresh. |
Output is refreshed by default.
The following example shows link-flap detection configuration for all ports:
show ports all link-flap-detection configuration Maximum threshold for interval of 10 seconds : 200 Port Link-Flap Actions Threshold Interval Disable Time Detection (secs) (secs) ========= ========= ======= ========== ============ ============= 1 E D-- 20 6 200 2 E D-- 20 6 200 3 D D-T 20 indefinitely until-cleared 4 E D-T 20 5 200 5 D D-T 20 5 200 6 D D-T 10 5 300 … ================================================================= > indicates Port Display Name truncated past 8 characters Link-Flap Detection: (E) Enabled, (D) Disabled Actions: (D) Disable port, (L) Generate log, (T) Generate SNMP trap
The following example shows link-flap detection counter information for all ports:
show ports all link-flap-detection counters Port Link-Flap Detection Counters Port Port Current Total Time Threshold State Link Flaps Link Flaps Elapsed Exceeded (secs) ========= ===== ========== ========== ========== ========== 1 E 0 0 0 0 2 E 0 0 0 0 3 D 0 0 0 0 4 D F 21 21 4 1 =========================================================== > indicates Port Display Name truncated past 8 characters Port State: E-Enabled, D-Disabled, F-Disabled by link-flap detection 0->Clear Counters U->page up D->page down ESC->exit
The following example shows ports disabled due to excessive link flapping:
show ports all link-flap-detection disabled-ports Ports disabled due to excessive link flapping Disabled Remaining Port(s) Disable Time (secs) =============== ============= 1 until-cleared 4 150 ============================= > indicates Port Display Name truncated past 15 characters
This command was first available in ExtremeXOS 22.1.
This command is available on ExtremeSwitching X435, X440-G2, X450-G2, X460-G2, X465, X590, X620, and X695 series switches.