jbase

JUNOS software package containing updates to the kernel.

jbundle

JUNOS software package containing all possible software package files.

j-cell

A 64-byte data unit used within the Packet Forwarding Engine. All IP packets processed by a Juniper Networks router are segmented into J-cells.

jdocs

JUNOS software package containing the documentation set.

jitter

Small random variation introduced into the value of a timer to prevent multiple timer expirations from becoming synchronized. In real-time applications such as VoIP and video, variation in the rate at which packets in a stream are received that can cause quality degradation.

jkernel

JUNOS software package containing the basic components of the software.

Join message

PIM message sent hop-by-hop upstream towards a multicast source or the RP of the domain. It requests that multicast traffic be sent downstream to the router originating the message.

jpfe

JUNOS software package containing the embedded OS software for operating the Packet Forwarding Engine.

jroute

JUNOS software package containing the software used by the Routing Engine.