07-23-2009 10:15 PM - edited 03-06-2019 06:55 AM
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
07-23-2009 10:26 PM
how about :
show tcp brief ?
and then clear the tcp session?
Example:
2611# show tcp brief
TCB Local Address Foreign Address (state)
81FC42B0 10.0.0.15.23 161.108.216.38.1660 ESTAB
2611#clear tcp tcb 81FC42B0
[confirm]
[OK]
07-24-2009 12:19 AM
It worked . The state was 'CLOSEWAIT'. why is it so..? is there any permanent solution for the same.
Thanks
07-24-2009 03:28 AM
You should have exec-timeout parameters set for all your vty lines that any idle lines will drop after say 15 minutes.
07-24-2009 03:34 AM
exec-timeout is already configured as 5 min. but still there are idle line for weeks..
07-24-2009 02:52 PM
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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