We are seeing the error message below on a cisco 7300 device. Now this has only appeared once but we are keen to finf out why. Cisco erro decoder does not have much to go by. It seems this error is something to do with the VTY lines
SYS-3-DUP_TIMER: Same tty[t-line] in linewatch_timers, type
Cisco discription of this message is very verge
Explanation A tty has appeared twice in a timer list in which it should have appeared only once.
Recommended Action Copy the error message exactly as it appears on the console or in the system log, contact your Cisco technical support representative, and provide the representative with the gathered information.
I have seen this error where Ethernet or Fastethernet was not working. I think that this is a software problem. Some IOS may have a bug like this please ensure it. If it is bug then you will have to do an IOS upgrade
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