Hi,

i looking qnet source code. i want to know how exactly qnet detects the remote node is their or not.
io-net uses "ndp" to detect the remote node or neighbour nodes. please give me an idea how exactly ndp detect the 
neighbour nodes.
1) how ndp identifies the neighbour node?
2) how qnx knows about this (source code)?
3) As soon as the remote node disconnected how the ndp gets the information and how it gives to qnet.

Thanks,
raj.