[e2e] Answer to Dave Reed Re: Fwd: Re: Question the other way round:

[Detlef Bosau]

Am 01.12.2013 22:16, schrieb Andrew Mcgregor:
> I mean sojourn time, one way in the particular queue, as per CoDel,
> rather than anything TCP-related.  Clearance rate is fairly simply
> related to sojourn time, of course, given enough integration time for
> the statistics to converge.

What will "converge"?

Either we talk completely at cross purposes or our views are incompatible.

Particularly: As long as we talk about IP, we have to talk about
clearance times for IP packets - and the observed packet corruption rate
should be negligible.


>
>
> On 2 December 2013 02:57, Detlef Bosau <detlef.bosau at web.de
> <mailto:detlef.bosau at web.de>> wrote:
>
>     Am 01.12.2013 06:05, schrieb Andrew Mcgregor:
>     > The actual clearance rate from the queue (or the sojourn time),
>     if that
>     > matters for your AQM scheme.  That way you are not assuming a
>     known line
>     > rate.
>     Clearance rate or sojourn time?
>
>     Clearance rate may apply for a packet delivery rate. From a TCP
>     point of
>     view, the sojourn time is the difference between the arrival of the
>     according ACK and the time a data packet left the sender.
>
>     So you omit any recovery latency.
>
>
>
>     >
>     > On 30 November 2013 00:13, Detlef Bosau <detlef.bosau at web.de
>     <mailto:detlef.bosau at web.de>> wrote:
>     >
>     >>  Am 29.11.2013 00:24, schrieb Andrew Mcgregor:
>     >>
>     >> In which case... measure, don't assume.  Served us well for 802.11
>     >> modulation selection, I don't see why it shouldn't work for AQM.
>     >>
>     >>
>     >> What do you want to measure?
>     >>
>     >
>     >
>
>
>     --
>     ------------------------------------------------------------------
>     Detlef Bosau
>     Galileistraße 30
>     70565 Stuttgart                            Tel.:   +49 711 5208031
>     <tel:%2B49%20711%205208031>
>                                                mobile: +49 172 6819937
>     <tel:%2B49%20172%206819937>
>                                                skype:     detlef.bosau
>                                                ICQ:          566129673
>     detlef.bosau at web.de <mailto:detlef.bosau at web.de>                  
>       http://www.detlef-bosau.de
>
>
>
>
> -- 
> Andrew McGregor | SRE | andrewmcgr at google.com
> <mailto:andrewmcgr at google.com> | +61 4 8143 7128


-- 
------------------------------------------------------------------
Detlef Bosau
Galileistraße 30   
70565 Stuttgart                            Tel.:   +49 711 5208031
                                           mobile: +49 172 6819937
                                           skype:     detlef.bosau
                                           ICQ:          566129673
detlef.bosau at web.de                     http://www.detlef-bosau.de