Mesh - Peer Channel
One feature of WCF that doesn’t seem to have been blogged about much is Peer Channel’s - there are a few MSDN bloggers here, here and here, together with a few samples here.
Why am I interested in Peer Channel? If you look at Sandeep’s P2P PDC presentation you see an interesting demo that’s very investment bank centric 
Where is the basics of the Peer-to-peer communication
in Windows Communication Foundation.
I have seen number of examples available on sites.’
but I could not find basics like
1)How to create MESH (With code sample)
2)How to join MESH (With code sample)
3)How to send Message to one node (With code sample)
4)How to broadcast message (With code sample)
5)otherthings…..