From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 8D02121F100 for ; Mon, 6 May 2013 09:46:24 -0700 (PDT) Received: from compute6.internal (compute6.nyi.mail.srv.osa [10.202.2.46]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id BF5A0208DB; Mon, 6 May 2013 12:46:00 -0400 (EDT) Received: from frontend2.nyi.mail.srv.osa ([10.202.2.161]) by compute6.internal (MEProxy); Mon, 06 May 2013 12:46:00 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=imap.cc; h=from :content-type:subject:date:references:to:message-id :mime-version; s=mesmtp; bh=Gcu+tLKG7dhzKd8XM9CxkZeZzME=; b=Z+Bm i5Z72MmIgLQ/qULeXN5lzAPxjZMq4HcY5q3Cj7t3klbgwcg90Kyu00mEPjA94R2G GHE1VsAbV7B5FC8qSdEFLoyvWb2jXL7sxSNcKESHO98CrWFrWNmR93KTi/lK5s/c MREfUO4Ztim094/5pTGSzvsIFf4R8Qf3zGgq54g= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=from:content-type:subject:date:references :to:message-id:mime-version; s=smtpout; bh=Gcu+tLKG7dhzKd8XM9Cxk ZeZzME=; b=qKYbF6kccvIR/su1xgQZxJzqq/BKm42wWrKGxQH3/+W1PohBFXsg8 qv51Q976+635pjnzJHpRBWxx5A5aggelFPmp4OWbl8N0K+rqIzQnRSQgj1+LnsfF v4f78P3OsyoqGrKeGQAAQFOQl/lDdIsfF5OY6t97sSHUtOZYaUXqk0= X-Sasl-enc: S/+isHvJj6ZZSVorzWM6eoxQJIqXLzZ0tY2+JE/PYgYT 1367858760 Received: from [172.30.42.15] (unknown [188.221.232.223]) by mail.messagingengine.com (Postfix) with ESMTPA id 2BA992001D7 for ; Mon, 6 May 2013 12:46:00 -0400 (EDT) From: Fred Stratton Content-Type: multipart/alternative; boundary="Apple-Mail=_0095E01A-4AD2-4418-85DE-20150E9560EA" Date: Mon, 6 May 2013 17:45:58 +0100 References: <3C25DAFB-0098-4168-A4C7-CE561D0CACCE@imap.cc> To: "cerowrt-users@lists.bufferbloat.net" Message-Id: <96E43EA3-C016-42E0-ACD3-61CFBE645010@imap.cc> Mime-Version: 1.0 (Mac OS X Mail 6.3 \(1503\)) X-Mailer: Apple Mail (2.1503) Subject: [Cerowrt-users] dnsmasq lease renewal and other issues with Berlin current X-BeenThere: cerowrt-users@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Support for user problems regarding cerowrt List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 May 2013 16:46:24 -0000 --Apple-Mail=_0095E01A-4AD2-4418-85DE-20150E9560EA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 Begin forwarded message: > From: Fred Stratton > Subject: Re: [Cerowrt-users] dnsmasq lease renewal and other issues = with Berlin current > Date: 6 May 2013 17:39:01 BST > To: "cerowrt-users-request@lists.bufferbloat.net" = >=20 >=20 > On 6 May 2013, at 16:46, Dave Taht wrote: >=20 >> The wiki is editable with a registration and the vast majority of = bufferbloat folk are not native English speakers. Please feel free to = correct whatever you may. >>=20 > I shall attempt to sparingly edit the wiki, after surmounting the = learning curve. The linguistic complaint is about the native English = speakers. >> I have subscOn May 6, 2013 10:42 AM, "Fred Stratton" = wrote: >> > >> > I have subscribed to this list because I am irritated by the = incorrect spelling of 'its' as 'it's' on the developer list. So much for = the educational system in North America. You do not understand the = possessive. >> > >> > dnsmasq is used in other router software, including the shabby = builds of tomatousb. It performs as expected in that context. >> > >> > On both the Modena and Berlin builds of Cerowrt, dnsmasq fails to = renew dhcp leases after an unknown period on a given radio network. If a = different network is used, a new lease can be obtained as evidenced by = the return of internet connectivity. A remedy is to restart dnsmasq from = the command line via ssh. >>=20 >> Hmm. I have not seen this behavior but I do not run wireless much = right now... >>=20 >>=20 > The understanding I had was that a primary focus was on improving the = problem on wireless. I have therefore configured the local network with = that goal in mind, disconnecting the wired component. >> > dnsmasq also points to dns servers supplied by the ISP. It is = difficult, or impossible, to substitute other server addresses. >>=20 >> You just override the default for ge00. >>=20 >=20 > Shall retry. >> > >> > The wiki, apart from using the possessive incorrectly, like the = developers, does not cover the setup of AQM on the Berlin build at all. >>=20 >> Berlin is presently a development build. Documentation lags. >>=20 >> Stable is Modena. =20 >> > It does not mention that activation requires modifying = /etc/hotplug.d to specify a device, and that simple_qos.sh, and the QoS = panel, both should not be used. >>=20 >> Discussed on the list. All you have to do with Berlin is set it up = via the AQM tab. >>=20 > I also has to set up /etc/hotplug.d appropriately, or the chosen AQM = values do not load, as evidenced by running=20 >=20 > tc disc show=20 >=20 >=20 >>=20 >> > I have an ADSL line, subject to RFI, with the target SNR set to 12 = decibel. >> > >> > AQM with efq_codel and simplest.qos reduce uplink delay from 5000ms = to 700ms. There are massive delays and breaks in streaming video when = attempting to run traffic streams concurrently. >>=20 >> The core numbers we care about are your uplink and downlink settings. >>=20 >> Which are? >>=20 >>=20 > originally uplink latency 5000ms, downlink latency 700ms >=20 > best values with efq_codel/simplest.qos >=20 > uplink latency 700ms downlink latency 40 ms >=20 > 8100 kb/s down, 750 mob/s up with AQM off. >> Rule of thumb is to try 85% of your rated bandwidth for those and = work up from there. >>=20 >> Enable the ADSL option. >>=20 >>=20 > I understood that the ADSL option just decremented the input values by = fifteen per cent. >=20 > Further decrements do not really alter the latencies. >> Also on this list on berlin was discussed that perhaps htb is = malfunctioning at very low rates. >> > >> > This is is the exact opposite of the Taeht roadshow demo. >>=20 >> The roadshow is on cable at 20 Mbit down 5 up. There is no magic = solution for ever lower bandwidths than that. >>=20 >> I have been fiddling with much despair with a model for under 4 Mbit. >>=20 >> Lastly efq-codel is emphatically the wrong thing in this case. It is = just where i stick the crazier ideas. >>=20 >> Please stick to fq-codel or nfq codel. >>=20 >>=20 > Appreciate that I have tried all three. I note what you say about = efq_codel. >=20 > I am staying with ADSL, and not moving to cable, which is = traffic-shaped, and tainted by the hand of Branson. FTTC is currently a = quasi-monopoly, and therefore out of consideration also. >=20 > I submit that cable is irrelevant for most of the world, as its = installation cost is prohibitive. Cable does not make money outside = America. The majority of users are likely to be using ADSL, with a = proportion moving to fibre in time, or to 4G, pace higher download = allowances. >=20 > Yes, Modena behaves far better than Berlin on an ADSL line at present, = but saying that serves no purpose in the forward progress of the = project. >=20 > I shall test further configurations, and repost when I find something = positive or informative. >=20 >> > >> > _______________________________________________ >> > Cerowrt-users mailing list >> > Cerowrt-users@lists.bufferbloat.net >> > https://lists.bufferbloat.net/listinfo/cerowrt-users >=20 --Apple-Mail=_0095E01A-4AD2-4418-85DE-20150E9560EA Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=iso-8859-1
From: Fred Stratton = <fredstratton@imap.cc>
Subject: = Re: [Cerowrt-users] dnsmasq lease renewal and = other issues with Berlin current
Date: 6 May 2013 17:39:01 = BST

dave.taht@gmail.com> = wrote:

The wiki is editable with a registration = and the vast majority of bufferbloat folk are not native English = speakers. Please feel free to correct whatever you = may.

I shall attempt to sparingly edit the = wiki, after surmounting the learning curve. The linguistic complaint is = about the native English speakers.

I have subscOn May 6, 2013 10:42 AM, "Fred Stratton" <fredstratton@imap.cc> = wrote:
>
> I have subscribed to this list because I am irritated by the = incorrect spelling of 'its' as 'it's' on the developer list. So much for = the educational system in North America. You do not understand the = possessive.
>
> dnsmasq is used in other router software, including the shabby = builds of tomatousb. It performs as expected in that context.
>
> On both the Modena and Berlin builds of Cerowrt,  dnsmasq = fails to renew dhcp leases after an unknown period on a given radio = network. If a different network is used, a new lease can be obtained as = evidenced by the return of internet connectivity. A remedy is to restart = dnsmasq from the command line via ssh.

Hmm. I have not = seen this behavior but I do not run wireless much right = now...


The understanding I had was that a = primary focus was on improving the problem on wireless. I have therefore = configured the local network with that goal in mind, disconnecting the = wired component.

> = dnsmasq also points to dns servers supplied by the ISP. It is difficult, = or impossible, to substitute other server addresses.

You= just override the default for = ge00.


Shall retry.

>
> The wiki, apart from using the possessive incorrectly, like the = developers, does not cover the setup of AQM on the Berlin build at = all.

Berlin is presently a development build. = Documentation lags.

Stable is Modena. 
> It does not mention that activation requires modifying = /etc/hotplug.d to specify a device, and that simple_qos.sh, and the QoS = panel, both should not be used.

Discussed on the list. = All you have to do with Berlin is set it up via the AQM = tab.

I also has to set up  /etc/hotplug.d = appropriately, or the chosen AQM values do not load, as evidenced by = running 

tc disc = show 



> I have an ADSL line, subject to = RFI, with the target SNR set to 12 decibel.
>
> AQM with efq_codel and simplest.qos reduce uplink delay from 5000ms = to 700ms. There are massive delays and breaks in streaming video when = attempting to run traffic streams concurrently.

The = core numbers we care about are your uplink and downlink settings.

Which are?


originally uplink = latency 5000ms, downlink latency 700ms

best = values with efq_codel/simplest.qos

uplink = latency 700ms downlink latency 40 ms

8100 kb/s = down, 750 mob/s up with AQM off.

Rule of thumb is to try 85% of your rated bandwidth for = those and work up from there.

Enable the ADSL = option.


I understood that the ADSL option = just decremented the input values by fifteen per = cent.

Further decrements do not really alter = the latencies.

Also on this = list on berlin was discussed that perhaps htb is malfunctioning at very = low rates.
>
> This is is the exact opposite of the Taeht roadshow demo.

The roadshow is on cable at 20 Mbit down 5 up. There is no = magic solution for ever lower bandwidths than that.

I = have been fiddling with much despair with a model for under 4 = Mbit.

Lastly efq-codel is emphatically the wrong thing = in this case. It is just where i stick the crazier ideas.

Please stick  to fq-codel or nfq = codel.


Appreciate that I have tried all = three.  I note what you say about = efq_codel.

I am staying with ADSL, and not = moving to cable, which is traffic-shaped, and tainted by the hand of = Branson. FTTC is currently a quasi-monopoly, and therefore out of = consideration also.

I submit that cable is = irrelevant for most of the world, as its installation cost is = prohibitive. Cable does not make money outside America. The majority of = users are likely to be using ADSL, with a proportion moving to fibre in = time, or to 4G, pace higher download = allowances.

Yes, Modena behaves far better than = Berlin on an ADSL line at present, but saying that serves no purpose in = the forward progress of the project.

I shall = test further configurations, and repost when I find something positive = or informative.

>
> _______________________________________________
> Cerowrt-users mailing list
> Cerowrt-users@lists.bu= fferbloat.net
> https://list= s.bufferbloat.net/listinfo/cerowrt-users



= --Apple-Mail=_0095E01A-4AD2-4418-85DE-20150E9560EA--