show ports link-flap-detection
Description
Displays the link-flap detection status for ports.
Syntax Description
| 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. |
Default
Output is refreshed by default.
Examples
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
History
This command was first available in ExtremeXOS 22.1.
Platform Availability
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.