juniper authentication with freeradius

Hi, I am trying to do juniper m7i router authentication with freeradius. Can someone provide me some documentation? I have configured juniper but i suppose i missing something on radius side. added following in dictionary file. VENDOR Juniper 2636 ATTRIBUTE Juniper-Local-User-Name 1 string Juniper ATTRIBUTE Juniper-Allow-Commands 2 string Juniper ATTRIBUTE Juniper-Deny-Commands 3 string Juniper Thanks