From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-x234.google.com (mail-pa0-x234.google.com [IPv6:2607:f8b0:400e:c03::234]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id B4EA321F733 for ; Mon, 19 Oct 2015 07:59:28 -0700 (PDT) Received: by pacfv9 with SMTP id fv9so97936996pac.3 for ; Mon, 19 Oct 2015 07:59:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=3QotzGixNteIzMaGN71DvUd8SqrQXP+czJetN79mX/0=; b=BRZzzbV49xe/yoNbZzREvex3cerPb+CYozaPHiLIXpl8JT4gJunBp1IxV8r2KPSBBY 0hktdsM0HKxrMFYikRDJlb7ITAmi3uEgp80h9gOJGAwTmL7g43lsuP5d4VUpomVOFoIi MFKso6Kw1umwnsXCd6H3i3YjqzkuzYPPXMxhBsLr3vVYkjz4Vp5rUDzKW/V/RyOBDjeT S7ekmCU2iPJxOeOCVFyZEbrhqPhESvEEgZzLjKBkS69qtj6kLN5E0HfOnv91Uc4wMU9b 72pfs4By1Y1YTqcMl1HQRAMVdrscCrAe4iFUYKjvg7+wlRLQ7Bc8PsII2B4PJRJ44rsn SYEQ== MIME-Version: 1.0 X-Received: by 10.66.61.205 with SMTP id s13mr34448759par.96.1445266767672; Mon, 19 Oct 2015 07:59:27 -0700 (PDT) Received: by 10.66.23.38 with HTTP; Mon, 19 Oct 2015 07:59:27 -0700 (PDT) In-Reply-To: References: Date: Mon, 19 Oct 2015 14:59:27 +0000 Message-ID: From: Loganaden Velvindron To: Noven Purnell-Webb Content-Type: multipart/alternative; boundary=001a11362d864afe8b0522766461 Cc: cake@lists.bufferbloat.net Subject: Re: [Cake] Cake over satellite X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Oct 2015 14:59:51 -0000 --001a11362d864afe8b0522766461 Content-Type: text/plain; charset=UTF-8 On Mon, Oct 19, 2015 at 2:55 PM, Noven Purnell-Webb wrote: > I'm about to go on a mission to the outback, with one objective being to > tune a disappointing satellite link. Theoretically 6/1mbps, with RTTs > ranging from 700 - 1200ms. From the cake technical page > Hi Noven. This has happened: using tc-adv, you now have the RTT parameter. The page needs to be updated to reflect that. > "The AQM layer has no configuration options. However, it is planned to add > simple tuning options for different prevailing RTTs that may be > significantly different from the Internet-scale 100ms currently assumed. > Satellite links tend to impose longer RTTs, and enclosed LANs tend to have > much shorter RTTs." Does this imply cake is not yet ready for use on > satellite links? Or merely that I'll get sub-optimal results but it's still > worth testing? > I see I could set the interval in sch_cake.c and recompile - is there any > reason why this would be a bad idea? Am I right in thinking with such > observed variation I'll get better results setting for the lower limit > (700) rather than the upper (1200)? > Any suggestions for a more sane target to set while I'm doing this? > Has anyone here already done testing on satellite links? > > - Noven > > -- > - Noven Purnell-Webb > Creative Technology Consultant > +61 448 841 091 > http://onecardme.com/NovenPWebb > > > > _______________________________________________ > Cake mailing list > Cake@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cake > > --001a11362d864afe8b0522766461 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


On Mon, Oct 19, 2015 at 2:55 PM, Noven Purnell-Webb &= lt;noven@liberan= t.com.au> wrote:
I'm about to go on a mission to the outback, with one obj= ective being to tune a disappointing satellite link. Theoretically 6/1mbps,= with RTTs ranging from 700 - 1200ms. From the cake technical page

Hi Noven.

This h= as happened:

using tc-adv, you now have the RTT parameter= .

The page needs to be updated to reflect that.

=C2=A0
"The AQM layer has no configuration options. However, it is planne= d to=20 add simple tuning options for different prevailing RTTs that may be=20 significantly different from the Internet-scale 100ms currently assumed. Satellite links tend to impose longer RTTs, and enclosed LANs tend to=20 have much shorter RTTs." Does this imply cake is not yet ready for use= on satellite links? Or merely that I'll get sub-optimal results but it= 's still worth testing?
I see I could set the interval in sch= _cake.c and recompile - is there any reason why this would be a bad idea? A= m I right in thinking with such observed variation I'll get better resu= lts setting for the lower limit (700) rather than the upper (1200)?
Any = suggestions for a more sane target to set while I'm doing this?
Has anyone here already done testing on satellite links?

- Noven

--
- Noven Purnell-Webb
Cr= eative Technology Consultant


<= /div>

_______________________________________________
Cake mailing list
Cake@lists.= bufferbloat.net
https://lists.bufferbloat.net/listinfo/cake


--001a11362d864afe8b0522766461--