Switchport going into err-disabled. Reason 'link-flap'

Dear experts

I have a specific switchport which goes into err-disabled mode around once a week and i'm trying to uncover why it is doing so.

show run
show port-security
Doing a show interfaces status err-disabled says that the reason is 'link-flap,' which i am not familiar with, i am hoping someone could shed some light on.

BTW end device is a windows pc.
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

link-flap usually means the network connection is being repeatedly disconnected and reconnected.

You can set thresholds for this and auto recovery for this type of error.

I would check the networking cable and sockets between the PC and switch to see if there are any loose connections.
Bladey001Author Commented:
How do i setup the thresholds and auto recovery?
you must be in configure mode to enable recovery.


errdisable recovery cause link-flap
errdisable recovery interval timer_interval_in_seconds

you can check the status using
show errdisable recovery

dont forget to "copy run start"

for further information, look at http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b.shtml

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Bladey001Author Commented:
Thank you!
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Switches / Hubs

From novice to tech pro — start learning today.