> On Feb 19, 2018, at 11:36 AM, Toke Høiland-Jørgensen <t...@toke.dk> wrote:
> 
> Pete Heist <petehe...@gmail.com> writes:
> 
>> I liked the simplicity of RFC 795 (https://tools.ietf.org/html/rfc795) from 
>> 1981 :) so, mostly in jest, I’ll propose a new system, call it "Deferential 
>> Services", summed up by this:
>> 
>> - Bits 0-2: Anti-precedence: 000 = normal, 111 = least important
>> - Bit 3: 0 = normal delay, 1 = high delay ok
>> - Bit 4: 0 = normal reliability, 1 = low reliability ok
>> - Bit 5: Always 1, identifies deferential services, rarely used for DiffServ 
>> in practice, I think
>> - Bits 6-7 ECN
>> 
>> Bit 5 will usually be 0 so deferential services won’t be used, and if
>> it happens to be 1 for the wrong reason, 000 in bits 0-2 is still best
>> effort so it won’t end up that bad in most cases. And with that I wipe
>> my hands and slip out the side exit… :)
> 
> Don't forget RFC3514 compliance ;)
> 
> https://www.ietf.org/rfc/rfc3514.txt

:)

Humor aside, I do think a system based on voluntary de-prioritization would be 
better than what we have today. Although, any system which is universally 
respected also holds the potential for abuse, which is probably why DiffServ 
ended up like it did in both design and practice.
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