How to Enable SSH on Cisco Switch, Router and ASA

http://www.thegeekstuff.com/2013/08/enable-ssh-cisco/

To disable telnet

myswitch#configure terminal
myswitch(config)#line VTY 0 15
myswitch(config-line)#Transport preferred ssh

tec support log

sh tech
sh switch detail
sh switch neighbors
sh switch stack-ring speed