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<div class="moz-cite-prefix">On 18/05/15 16:09, <a class="moz-txt-link-abbreviated" href="mailto:dpreed@reed.com">dpreed@reed.com</a>
wrote:<br>
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<p style="margin:0;padding:0;font-family: 'times new roman';
font-size: 10pt; word-wrap: break-word;">I'm curious as to why
one would need low priority class if you were using fq_codel?
Are the LEDBAT flows indistinguishable? Is there no
congestion signalling (no drops, no ECN)? The main reason I
ask is that end-to-end flows should share capacity well enough
without magical and rarely implemented things like diffserv
and intserv.</p>
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On Monday, May 18, 2015 8:30am, "Simon Barber"
<a class="moz-txt-link-rfc2396E" href="mailto:simon@superduper.net"><simon@superduper.net></a> said:<br>
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<p style="margin:0;padding:0;margin: 0 0 1em 0; color:
black;">I am likely out of date about Windows Update,
but there's many other programs that do background
downloads or uploads that don't implement LEDBAT or
similar protection. The current AQM recommendation draft
in the IETF will make things worse, by not drawing
attention to the fact that implementing AQM without
implementing a low priority traffic class (such as DSCP
8 - CS1) will prevent solutions like LEDBAT from
working, or there being any alternative. Would
appreciate support on the AQM list in the importance of
this.</p>
<p style="margin:0;padding:0;margin: 0 0 1em 0; color:
black;">Simon</p>
<p style="margin:0;padding:0;margin: 0 0 1em 0; color:
black;">Sent with AquaMail for Android<br>
<a moz-do-not-send="true"
href="http://www.aqua-mail.com">http://www.aqua-mail.com</a></p>
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<p style="margin:0;padding:0;color: black; font-size:
10pt; font-family: Arial, sans-serif; margin: 10pt 0;">On
May 18, 2015 4:42:43 AM "Eggert, Lars"
<a class="moz-txt-link-rfc2396E" href="mailto:lars@netapp.com"><lars@netapp.com></a> wrote:</p>
<blockquote class="gmail_quote" style="margin: 0 0 0
0.75ex; border-left: 1px solid #808080; padding-left:
0.75ex;">On 2015-5-18, at 07:06, Simon Barber <<a
moz-do-not-send="true" class=""
href="mailto:simon@superduper.net">simon@superduper.net</a>>
wrote:
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<blockquote class="">
<div class=""><span class="" style="font-family:
Menlo-Regular; font-size: 12px; font-style:
normal; font-variant: normal; font-weight:
normal; letter-spacing: normal; line-height:
normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing:
0px; -webkit-text-stroke-width: 0px;
background-color: #ffffff; float: none; display:
inline !important;">Windows update will kill
your Skype call.</span></div>
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<br class="">
<div class="">Really? AFAIK Windows Update has been
using a LEDBAT-like scavenger-type congestion control
algorithm for years now.</div>
<div class="">Lars</div>
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