- But it did not cover sysyem services such as NTP, TACPLUS, SNMP, SYSLOG, I am not sure if they use the same syntax on EX 4200 just like they do on EX 4300.
These services are the same in both switches the change between the two models is in layer 2 switching configurations called ELS (enhanced layer 2 services).
Check out these two free day one books for the next level configurations:
finishing Junos deploys
hardening Junos devices