14.1 Flow/Route of the Message14.2 Contiki CCN Layer14.3 6LoWPAN MAC Layer14.4 6LoWPAN Adaptation Layer14.5 6LoWPAN Network (IP) Layer14.6 Implementation of uIP Layer (FreeRTOS and Nanostack)14.7 Implementation of fIP Layer (FreeRTOS and Nanostack)14.8 6LoWPAN Transport Layer14.9 Network Routing Protocol (NRP)14.10 Contiki Stack of Transport Layer14.10.1 TCP Functions Which May Be Internal to TCP Process TCP_Process ()14.10.2 UDP Functions Which May Be Internal to UDP Process UDP_Process ()14.11 6LoWPAN Application Layer14.11.1 Socket Function Calling14.11.2 TCP Socket Calls14.12 6LoWPAN Border Router (LBR)14.13 IoT Design Aspects