command FLapping

[MUNIR_ENG]

which a command can show a flapping in extreme switch ?

[Patrick_Voss]

Hi Munir,

Flapping implies that the port is going up and down very quickly. The logs should show this with a time stamp. The commands provided above will also provide the last time it went down and came up along with a counter for how many times. This data is typically cleared after a reboot or if the command "clear counters" is entered.

[davidj_cogliane]

If you're talking about a port. Sho port #:## info detail Just above the vlans it shows link UPS and link downs

[MUNIR_ENG]

great full, how i can following a flapping and fix it ?

[Henrique]

Hi Munir, if you are using LAG you can also use the command show ports sharing em check the values for Link Up Transitions as follows: