Next time you telnet to a switch, do a show line, and see if there are any zombie telnet sessions taking up all the vty lines. It could simply be an operational problem, especially if you have no timeout and no keepalive on the telnet sessions. Do all the operators remember to disconnect the telnet session when they have finished with it?
I logged into one of them and it shows 16 vty sessions. Now, correct me if I'm wrong, but shouldn't the default exec-timeout 10 in the line vty disconnect these sessions? If not how to I get these sessions to automatically disconnect? How many bad sessions like this will stop me from being able to telnet?
on second look only one of those lines was being used and it was the one I was on. When looking at any of the switches I can get to if I do a sh users I see only 1 vty being used. So it appears that there are no orfan sessions.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...