hang on! we deprecated IPv5 some time ago - this is a hijack! v On Wed, Mar 31, 2021 at 3:16 AM Pete Heist wrote: > Since April 1 is upon us, I thought I'd let the list know that the ECN > debate has finally been resolved, pending a few details to work out... > > IPv5 > ==== > > Codename: IP "Regret" > > # Header Format > > ----------------------------------------------------------------- > | Ver | Reserved | Protocol | Hop Limit | > ----------------------------------------------------------------- > | Payload Length | Flow Label | > ----------------------------------------------------------------- > | | > | Source Address | > | | > ----------------------------------------------------------------- > | | > | Destination Address | > | | > ----------------------------------------------------------------- > > (Ver)sion (4 bits): > Protocol version, set to 5 > > Reserved (12 bits): > Reserved for fun, MBZ on open Internet > > Protocol (1 byte): > Protocol number as per IANA > > Hop Limit (1 byte): > As per IPv6 > > Payload Length (16 bits): > Length of payload- fragmentation not supported > > Flow Label (16 bits): > Flow label- next to addresses for fast hashing > > Source Address (8 bytes): > 64-bit source address > > Destination Address (8 bytes): > 64-bit destination address > > # Rationale > > * provides more than adequate address space > * reduces IPv6 complexity > * reduces header size to 24 bytes, down from 40 for IPv6 > * leaves 12 bits of header space for experiments and future use > * makes the Internet fun again > > > _______________________________________________ > Ecn-sane mailing list > Ecn-sane@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/ecn-sane > -- Please send any postal/overnight deliveries to: Vint Cerf 1435 Woodhurst Blvd McLean, VA 22102 703-448-0965 until further notice