OK I compiled it. It built as a package. <br><br><div class="gmail_quote">On Wed, May 4, 2011 at 10:16 AM, Nick Feamster <span dir="ltr"><<a href="mailto:feamster@cc.gatech.edu">feamster@cc.gatech.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">As Srikanth said, not needed for capetown.<br>
<br>
Some possibilities we've been thinking about using it for:<br>
<br>
* enforcing per-user or per-device usage caps (in capped settings)<br></blockquote><div><br>In this particular case, using SFB on a per IP address basis may work.<br><br>(not that SFB is in the build)<br> <br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
* rate-limiting and QoS functionality<br></blockquote><div><br>I incorporated the QoS scripts which use tc and the hsfc QoS algorithm + SFQ to do that job. It works well in iscwrt, in combination with a lowered txqueue (to 16), I observed latencies peaking at 66ms on a DSL connection that can't do better than 26ms. (vs over half a second)<br>
<br>(these are disabled by default (I think) as they will mess up your measurements)<br> <br>But do try 'em out!<br><br>They seem pretty good on the outgoing interface. To do rate limitation on a per user basis in conjunction with that I would think about SFB on the inner interfaces.<br>
<br>So I'm back to wondering what to do, exactly, with openflow.<br><br>If you aren't already aware of the iscwrt subproject, see:<br><br><a href="http://www.bufferbloat.net/projects/iscwrt/wiki">http://www.bufferbloat.net/projects/iscwrt/wiki</a><br>
<br>One of the principal maintainers of bind (Evan Hunt) is hacking on it - even running it now using the wndr3700v2 as his main router. <br><br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
* remote management, troubleshooting, or security services. See this, for example:<br>
<a href="http://www.gtnoise.net/papers/2010/feamster:homenets2010.pdf" target="_blank">http://www.gtnoise.net/papers/2010/feamster:homenets2010.pdf</a><br>
<br></blockquote><div><br>nagios + snmp are common for some of that.<br><br>I'll read the paper on the plane.<br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
I'd love to get this into the build sometime soon-ish, so I could encourage people to use it in my class this coming fall. :-)<br>
<font color="#888888"><br>
-Nick<br>
</font><div><div></div><div class="h5"><br>
<br>
On May 4, 2011, at 11:33 AM, Dave Taht wrote:<br>
<br>
> 3) What is the need for openflow? I am meeting with the folk at stanford at 2PM PDT and although I get what openflow is for, I'm not sure of the intended use. Is it needed for capetown?<br>
><br>
><br>
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> Dave Täht<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Dave Täht<br>SKYPE: davetaht<br>US Tel: 1-239-829-5608<br><a href="http://the-edge.blogspot.com" target="_blank">http://the-edge.blogspot.com</a> <br>