SWRA826 August 2025 CC1312R7 , CC1314R10 , CC1352P7 , CC1354P10 , CC1354R10
Router nodes are able to join the network by sending the PAN advertisement solicit in the area, which allows them to get an image of the networks around. The router node selects the network to join using the PAN ID of the network, which starts the authentication process through the EAPOL layer. Once authenticated, a security exchange is performed, which results in the router node receiving GTKs. Further PAN configuration is done securely, using the GTKs to decrypt incoming configuration messages. With the PAN configuration completed, the router node exchanges routing information with the network. If this is done successfully, then the joining device becomes an operational router node in the network. The joining router node can add new router nodes to the network. Figure 4-2 shows the steps in the process. Each state is explained in more detail in the TI Wi-SUN Stack User's Guide.
Figure 4-2 Router Node Join
Process