Native Networking (Qnet)

Updated: October 26, 2022

In the Interprocess Communication (IPC) chapter earlier in this manual, we described message passing in the context of a single node. But the true power of the QNX Neutrino RTOS lies in its ability to take the message-passing paradigm and extend it transparently over a network of microkernels. This chapter describes QNX Neutrino native networking (via the Qnet protocol).

Note: You can have at most one instance of Qnet running on a node, even if you're running more than one instance of io-pkt.