<br><div class="gmail_quote">On 6 September 2012 17:20, Dave Taht <span dir="ltr"><<a href="mailto:dave.taht@gmail.com" target="_blank">dave.taht@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
The ubnt builds are a bit out of date (part of my test deployment of<br>
fq_codel at a campground here - the yurtlab!<br>
<a href="http://snapon.lab.bufferbloat.net/%7Ed/lupin/yurtlab.jpg" target="_blank">http://snapon.lab.bufferbloat.net/~d/lupin/yurtlab.jpg</a> which is<br>
blessedly free<br>
of competing wifi signals)<br>
<br>
They are also a little specialized. Among other things, they have my<br>
ssh public key in them,<br>
and are keyed to local dns, they rely on the babel protocol to route<br>
and mesh together, although they do come up presently on a fixed ip<br>
address that needs to be changed, instead of relying on AHCP for their<br>
IPs and dns.<br>
<br>
All of quagga (including OSPF) IS built, it's just that babel is the default.<br>
<br>
In working with this build and test deployment I exposed some problems<br>
with memory usage in codel and the ath9k driver. Quagga will get<br>
OOM-killed under heavy loads, such as RTP and UDP flooding across<br>
multiple diffserv values, on the 2HP boxes in AP mode. The p2p<br>
backbone (nanostation M5s) has never crashed on me.<br>
<br>
This points long term towards developing a "mfq_codel", which would<br>
have one qdisc and *one* set of buffers that controls all four<br>
hardware queues. However, try as I might, I haven't wrapped my head<br>
around how to merge the code for sch_mq and sch_fq_codel, in a way<br>
that would work. (?)<br>
<br>
Aside from that it's working rather well, and the hacks I have in<br>
place now to reduce skb size seem to help a lot.<br>
<br>
Now that the memory problems are mostly beaten I will be doing a<br>
respin and re-deployment towards the end of the month. If I can build<br>
something a little more generic and easy to deploy on ubnt for others,<br>
I will do so, getting to where all this code runs well in 32MB is<br>
rather important to me.<br>
<br>
Let me know.<br>
<div><div class="h5"><br>
On Thu, Sep 6, 2012 at 4:17 AM, Andy S <<a href="mailto:andys@bristolwireless.net">andys@bristolwireless.net</a>> wrote:<br>
> I see that there are UBNT builds available for specific deployment<br>
> scenarios; we use Ubiquiti Bullet M5's on some parts of our (city-wide)<br>
> 5.8Ghz wireless network, but they don't support OSPF, so if any of the<br>
> builds of Cerowrt support Bullet M5 and OSPF (I see the Quagga-ospf modules<br>
> available in the main devel builds) - we would be interested to hear/test!<br>
><br>
> Cheers,<br>
><br>
> A<br>
> --<br>
> <a href="http://www.bristolwireless.net/" target="_blank">http://www.bristolwireless.net/</a> | <a href="tel:0117%20325%200067" value="+441173250067">0117 325 0067</a> |<br>
> <a href="mailto:sip%3Ainfo@bristolwireless.net">sip:info@bristolwireless.net</a><br>
> Bristol Wireless<br>
> Windmill Hill City Farm<br>
> Philip Street<br>
> Bedminster<br>
> Bristol BS3 4EA<br>
><br>
><br>
</div></div>> _______________________________________________<br>
> Cerowrt-devel mailing list<br>
> <a href="mailto:Cerowrt-devel@lists.bufferbloat.net">Cerowrt-devel@lists.bufferbloat.net</a><br>
> <a href="https://lists.bufferbloat.net/listinfo/cerowrt-devel" target="_blank">https://lists.bufferbloat.net/listinfo/cerowrt-devel</a><br>
><br>
<span class="HOEnZb"><font color="#888888"><br>
<br>
<br>
--<br>
Dave Täht<br>
<a href="http://www.bufferbloat.net/projects/cerowrt/wiki" target="_blank">http://www.bufferbloat.net/projects/cerowrt/wiki</a> - "3.3.8-17 is out<br>
with fq_codel!"<br>
</font></span></blockquote></div><br><font color="#000066"><font face="verdana,sans-serif">Sounds great, still none the wiser as to whether your builds will work on the Bullet or not, as the Bullet and NanoStation run different software by default.<br>
<br>
Most of what you guys do is waaay over my head, but I'm keen to try
stuff out, although this may necessitate a sacrificial Bullet!<br>
<br>
Keep us posted!<br>
<br>
A<br></font></font><br clear="all"><br>-- <br><font size="1"><a href="http://www.bristolwireless.net/" target="_blank"><b><font color="#000099">http://www.bristolwireless.net/</font></b></a><b><font color="#000099"> | </font></b><span style="font-family:Helvetica,Arial,sans-serif;line-height:24px"><b><font color="#000099">0117 325 0067 | </font></b></span><span style="font-family:Helvetica,Arial,sans-serif;line-height:24px"><b><a href="mailto:sip%3Ainfo@bristolwireless.net" target="_blank"><font color="#000099">sip:info@bristolwireless.net</font></a></b></span></font><div>
<span style="font-family:Helvetica,Arial,sans-serif;line-height:24px"><b style="background-color:transparent;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;vertical-align:baseline;font-family:Helvetica,Arial,sans-serif"><font size="1" color="#000099">Bristol Wireless</font></b><b><font color="#000099"><font size="1"><br>
Windmill Hill City Farm<br>Philip Street<br>Bedminster</font><br><font size="1">Bristol BS3 4EA</font></font></b></span></div><br>