There are conditions when even a single application will suffer from bloat.
For instance, several ABR video players use multiple TCP/HTTP sessions to fetch
data. Some of the data boils down to large video chunks, and some of the data
boils down to small pieces of control information. Think of a
On 2015-5-18, at 07:06, Simon Barber
mailto:si...@superduper.net>> wrote:
Windows update will kill your Skype call.
Really? AFAIK Windows Update has been using a LEDBAT-like scavenger-type
congestion control algorithm for years now.
Lars
___
Cerowrt-d
That would be OK for ledbat-like vs TCP
Real time vs ledbat-like isn't that clear to me why real time should be
protected.
I'd say that Skype would suffer against any protocol probing for bandwidth.
Original message
From: "Eggert, Lars"
Date:18/05/2015 1:49 PM (GMT+01:00)
To
I am likely out of date about Windows Update, but there's many other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
implementin
> On 18 May, 2015, at 15:30, Simon Barber wrote:
>
> implementing AQM without implementing a low priority traffic class (such as
> DSCP 8 - CS1) will prevent solutions like LEDBAT from working
I note that the LEDBAT RFC itself points out this fact, and also that an AQM
which successfully “def
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 impleme
LEDBAT is often used for scavenger traffic - things that should not detract
from normal Internet use. There are two effects, latency and bandwidth.
While AQM solves the latency problem, it removes the ability of LEDBAT to
not impact bandwidth during peak usage.
Simon
Sent with AquaMail for An
> On 18 May, 2015, at 18:09, dpr...@reed.com wrote:
>
> 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
> shoul
Hi Jonathan,
On May 18, 2015 5:40:30 PM GMT+02:00, Jonathan Morton
wrote:
>
[...]
>
>Adding Diffserv and recommending that LEDBAT applications use the
>“background” traffic class (CS1 DSCP) solves this problem more
>elegantly. The share of bandwidth used by BitTorrent (say) is then
>independent
> On 18 May, 2015, at 20:03, Sebastian Moeller wrote:
>
>> Adding Diffserv and recommending that LEDBAT applications use the
>> “background” traffic class (CS1 DSCP) solves this problem more
>> elegantly. The share of bandwidth used by BitTorrent (say) is then
>> independent of the number of fl
On Mon, May 18, 2015 at 8:32 AM, Simon Barber wrote:
> LEDBAT is often used for scavenger traffic - things that should not detract
> from normal Internet use. There are two effects, latency and bandwidth.
> While AQM solves the latency problem, it removes the ability of LEDBAT to
> not impact band
HI Jonathan,
On May 18, 2015, at 19:17 , Jonathan Morton wrote:
>
>> On 18 May, 2015, at 20:03, Sebastian Moeller wrote:
>>
>>> Adding Diffserv and recommending that LEDBAT applications use the
>>> “background” traffic class (CS1 DSCP) solves this problem more
>>> elegantly. The share of ban
On Mon, May 18, 2015 at 11:14 AM, Sebastian Moeller wrote:
> HI Jonathan,
>
> On May 18, 2015, at 19:17 , Jonathan Morton wrote:
>
>>
>>> On 18 May, 2015, at 20:03, Sebastian Moeller wrote:
>>>
Adding Diffserv and recommending that LEDBAT applications use the
“background” traffic class
Last Saturday, I heard a piece on CBC Radio's Spark program about the CIRA in
Canada and their effort to map out network performance in order to get better
Internet service for everyone across Canada. You can listen to the piece at:
http://www.cbc.ca/radio/spark/286-empathy-games-intangible-art-
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