Fred Baker (fred) <[email protected]> wrote:
> 
> ... We also carried the recommendation into the draft:
> 
>> 4.4.  AQM algorithms SHOULD respond to measured congestion, not
>>       application profiles.
>> 
>> ...
>>    An AQM algorithm should not deliberately try to prejudice the size of
>>    packet that performs best (i.e.  Preferentially drop/mark based only
>>    on packet size).  Procedures for selecting packets to mark/drop
>>    SHOULD observe the actual or projected time that a packet is in a
>>    queue (bytes at a rate being an analog to time).  When an AQM
>>    algorithm decides whether to drop (or mark) a packet, it is
>>    RECOMMENDED that the size of the particular packet should not be
>>    taken into account [Byte-pkt].
> 
> ...
> We might, however, need to rethink the wording there. What we're trying
> to say, following 7141, is that one shouldn't try to target data packets
> or some such thing. A packet is a packet; if the time comes to hit one,
> hit the one you're looking at.

   That's the way I read it...

> But now that I read it, I could imagine someone thinking that means we
> can't measure bit rates, only packet rates. Mumble.

   I can't see that interpretation as reasonable, given the phrase
] (bytes at a rate being an analog to time).

   It would be possible for someone to argue that restating a recommendation
from another document weakens both statements; but I disagree: We should
clearly state what we mean in this document, and I believe this wording
does so.

--
John Leslie <[email protected]>

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