I have faced a problem regarding AAA line:
aaa authorization exec default group tacacs+ local
if i add this line in my cisco 4948 switch running on 122-46.SG.. The next time i telnet to the switch i get an automatic restart of the switch and all configs are lost.
IOS used:
cat4500-ipbase-mz.122-46.SG.bin
WS-C4948-10GE