Broadcast like UDP with the reliability of TCP

Question

I\'m working on a .net solution that is run completely inside a single network. When users make a change to the system, I want to launch an announcement and have everyone else h

Answer 1

You might want to look into RFC 3208 "PGM Reliable Transport Protocol Specification".

Here is the abstract:

Pragmatic General Multicast (PGM) is a reliable multicast transport
protocol for applications that require ordered or unordered,
duplicate-free, multicast data delivery from multiple sources to
multiple receivers. PGM guarantees that a receiver in the group either receives all data packets from transmissions and repairs, or is able to detect unrecoverable data packet loss. PGM is specifically intended as a workable solution for multicast applications with basic reliability requirements. Its central design goal is simplicity of operation with due regard for scalability and network efficiency.