[c-nsp] VTY Lines

[Clinton Work]

Sound like a bug similiar to CSCee62455.  From experience with the bug, 
once all the VTY lines are locked up, the console port would not respond 
either.  The only way to clear the VTY lines was with SNMP, but it would 
cause crashes from time to time.  "service tcp-keepaliaves in/out" 
didn't help either. 

Clinton. 

Dale Shaw wrote:
> Hmm, I guess it might come in useful if you're accessing the vty line
> via a firewall with particularly aggressive idle TCP session timers?
>
> Having said that though, it's not like "service tcp-keepalives
> (in|out)" can be tuned. The DocCD is quiet on how often the keepalives
> are sent, too.
>
>