Ask a route to your junos device and obtain some detail.
To use it :
routeShow x.x.x.x/x or routeShow x.x.x.x
output :
Route To : x.x.x.x/x
Learn from : Device via Next-Hop
The Client is "Descritpion"
AS Path: ASXXXX ASXXXX I
Hop 0 : Description AS
Community : xxxx:xxxx or Community Name
Local Preference is XXXX
MED is XXX