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by tptacek 254 days ago
There's going to be encryption either way in any modern protocol, and then the header manipulation stuff is already all done in hardware. It's probably more efficient in UDP than as a direct IP protocol, because UDP is fast-pathed in ways protocols other than 6 and 17 aren't.

Having a diversity of IP protocols isn't a nice thing. The designers of TCP/IP made a protocol specifically for doing the thing you wanted to see SCTP do: it was called UDP.
1 comments
IgorPartola 254 days ago
Why isn’t it a nice thing? And SCTP and UDP clearly provide different semantics. I am fine with experimenting with new protocols on top of UDP because it is simple to do but ultimately I think things like SCTP and QUIC should run directly on top of IP.
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tptacek 254 days ago
No. SCTP provides a superset of UDP's semantics. Every IP protocol does, because UDP doesn't do anything except multiplex raw IP.
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