The best 3 way handshake illustration :
source : http://jvmblog.tistory.com/1 [...]
3 way handshake
Posted by fanie on Friday, March 29, 2013
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Privilege Router Switch Mode
Posted by fanie on Saturday, March 23, 2013
Router> (this is user exec mode -> privilege 1)
Router# (this is enable exec mode -> privilege 15)
Router(conf) (this is global config)
Show history (show all commands that we have typed before)
The history size is up to 256 buffer
command [...]
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