If you forget the root password for the switch, don't worry, Juniper gives you a password recovery procedure to reset the root password. You need physical access to the switch to recover the root password. This is done by direct console access or th...
http://www.ebrahma.com/2013/09/recovering-root-password-on-juniper-ex-series-switches/Labels: ex-series-password, Juniper-EX-series, juniper-password-recovery, password-recovery