JET Service Process Overview
To support application interaction with Junos OS, the JET service process (jsd), by default, uses TCP port 32767 to listen for and receive requests from applications to execute APIs. Whenever a request comes on the TCP port, jsd creates a separate thread to service the JET application request. The session remains established as long as the client and server are both up and able to communicate with each other. Over the lifetime of a session, jsd can execute many APIs, and it can execute APIs from multiple sessions in parallel. You can have a maximum of 8 active client sessions connected at any given time.
JET does not support ECDSA or DSA SSL certificates. For secure communications with jsd, use RSA certificates, specifically TLSv1.