[Ecn-sane] IPv5

[Vint Cerf]

hang on! we deprecated IPv5 some time ago - this is a hijack!

v


On Wed, Mar 31, 2021 at 3:16 AM Pete Heist <pete at heistp.net> 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
>
>
> _______________________________________________
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> Ecn-sane at 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
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