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I like the explanation I've heard that rolling your own TCP stack is a very educational and worthwhile experience. But, what makes TCP so difficult in practice

I like the explanation I've heard that rolling your own TCP stack is a very educational and worthwhile experience. But, what makes TCP so difficult in practice is that there are so many home-rolled stacks out there in the wild that all have different quirks and errors. So yes, please roll your own. But no, please do not add to the wild zoo of errors by deploying it.

zik 9y ago
That's literally how the original TCP/IP implementations were tested: by running them against each other in "bake-offs": https://tools.ietf.org/html/rfc1025 https://tools.ietf.org/html/rfc1025 I think there's a lot to be said for testing network code against the myriad of real world implementations out there.
- saminiir 9y ago
  Very interesting and yes, interoperability is hard. https://www.snellman.net/blog/archive/2014-11-11-tcp-is-harder-than-it-looks.html https://www.snellman.net/blog/archive/2014-11-11-tcp-is-hard...