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A comment on Now that we have IPv6 – do we need TCP/UDP port numbers anymore?. Parent comment

Re:Now that we have IPv6 – do we need TCP/UDP port numbers a... by coroutines on Tuesday July 14, 2015 @04:09AM (#9883445)
A year or so ago it seemed like SCTP was actually going to be a thing someday.

If SCTP did become the protocol we transition TCP/UDP to - should port numbers stay? (iyo)

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Re:Now that we have IPv6 – do we need TCP/UDP port numbers a... by dozzie on Tuesday July 14, 2015 @04:27AM (#9883499)
Port numbers will stay, because SCTP defines them.

If you want to get rid of port numbers, you will need to roll a new protocol, and nobody will go this way merely because of four bytes per packet.

Also, there would probably be vast amount of unexpected traps and pitholes without port numbers. We already know well how to work with port numbers. We don't know too well how to work without them.

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