SNOS or Satellite network operating system

• Satellites Runs Windriver Yocto Linux, Also called SNOS

https://www.juniper.net/documentation/en_US/junos/topics/concept/fusion-software.html

SNOS is like linecard firmware image

Fusion “brain”, which runs the actual control plane functionality

JFE supports PoE, .1x, and stacking/clustering for the SD Vchassis.

JFD has e.g. local switching capability in the SD etc.

JFD:

https://apps.juniper.net/feature-explorer/select-software.html?swName=Junos+OS&typ=1#family=&pid=30600004&platform=Junos+Fusion+Data+Center&rel=17.4R1&sid=881&stat=0.6889057398343955&swName=Junos+OS

JFE:

https://apps.juniper.net/feature-explorer/select-software.html?swName=Junos+OS&typ=1#family=&pid=30600005&platform=Junos+Fusion+Enterprise&rel=17.4R1&sid=881&stat=0.8226843942476941&swName=Junos+OS