Not able to clear idle vty lines

Unanswered Question
Jul 23rd, 2009

Hello Guys,

Some of my cisco devices I am not able to clear idle vty lines. if I give clear line it is asking for confirmation but those lines are not getting cleared.

the IOS version is cat4000-i5k91s-mz.122-20.EW4.bin

TCP keepalive services are aliready enabled

Could somebody provide any solution

Thanks in advance

I have this problem too.
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Lucien Avramov Thu, 07/23/2009 - 22:26

how about :

show tcp brief ?

and then clear the tcp session?


2611# show tcp brief

TCB Local Address Foreign Address (state)


2611#clear tcp tcb 81FC42B0



harish.ab Fri, 07/24/2009 - 00:19

It worked . The state was 'CLOSEWAIT'. why is it so..? is there any permanent solution for the same.


glen.grant Fri, 07/24/2009 - 03:28

You should have exec-timeout parameters set for all your vty lines that any idle lines will drop after say 15 minutes.

harish.ab Fri, 07/24/2009 - 03:34

exec-timeout is already configured as 5 min. but still there are idle line for weeks..

jbrenesj Fri, 07/24/2009 - 14:52

This is a known bug, there are actually plenty of them so you can do the manual clear, reload or do an IOS upgrade to finally resolve this


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