News for hackers. Stuff that matters.

A comment on WebTransport is almost here to allow UDP-like exchange in the browser. Parent comment

Re:WebTransport is almost here to allow UDP-like exchange in... by greenavocado on Monday November 17, 2025 @02:19PM (#45957032)
SCTP: The FORWARD-TSN chunk was introduced to support selective unreliability: it allows the sender to tell the receiver that it will not retransmit some number of chunks, and requests that the receiver consider all these chunks as received.
[ Parent | on HN ]
Re:WebTransport is almost here to allow UDP-like exchange in... by kixelated on Monday November 17, 2025 @03:22PM (#45957836)
QUIC has a much better alternative to FORWARD-TSN, either via RESET_STREAM or QUIC datagrams.

I've implemented SCTP before to hack in "datagram" support by spamming FORWARD-TSN. Fun fact: you can't use FORWARD-TSN if there's still reliable data outstanding. TSN is sequential after all, you have to drop all or nothing.

QUIC as a protocol is significantly better than SCTP. I really recommend the RFC

[ Parent | on HN ]
Re:WebTransport is almost here to allow UDP-like exchange in... by greenavocado on Monday November 17, 2025 @06:08PM (#45959493)
Wow thanks for the tip
[ Parent | on HN ]