Hello,When I try to implement udp or tcp hole punching in real world (e.g. bittorrent), an scalability issue pops up. UDP/TCP hole punching Hole punching requires peer A and B to sent packet to each other almost "at same time" to build the connection. It also requires server S keep a UDP/TCP connection with "every" peer to forward connection request. It could be very costly to build such a server S to serve millions of peers. Any solution? It looks to me the connection request forwarding could be standardized into a P2P control protocol (besides the data transfer protocols). could anyone tell me if there is an effort to standardize this (a draft version is great too)?
Greatly appreciated If you could point me to any document, source code, library or examples on implementation of hole punching. Thanks a lot, Shidong
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