Qnet or FLEET description needed

Is there any official/unofficial detailed description of qnet or fleet protocols, like one can find about tcp/ip?

I believe QNX offers some kind of TDK (maybe the Extended Networking TDK?) that contains even the source to QNET.

It’s not the extended networking TDK (this includes advanced public protocols), but there is a source kit for Qnet; it is called the “Transparent Distributed Processing Source Kit”.


Must cost an arm and a leg.