+-----------------------------------+
|  Constrained Join Protocol (CoJP) |
+-----------------------------------+
+-----------------------------------+  \
|         Requests / Responses      |  |
|-----------------------------------|  |
|               OSCORE              |  | CoAP
|-----------------------------------|  |
|           Messaging Layer         |  |
+-----------------------------------+  /
+-----------------------------------+
|                UDP                |
+-----------------------------------+