Hi Yiannis, Thank you for your help! I don't have to use cbq, that's cause tc can not control bandwidth, so I just try it. Oh sorry, I didn't no describe clearly. I am using NetFPGA-based OF switch, and tc can not control the four ports belong to the NetFPGA.
Thank you for your explain, now I understand more clearly. So, if I want to use tc to control flow bandwidth, can it do the thing in the NetFPGA-based OF switch? Or can it just modify the queue that created by ./dpctl add-queue? Yi-Shou 2011/3/17 Yiannis Yiakoumis <[email protected]> > Hi Yi-Shou, > > Why do you use cbq? What OpenFlow switch to you use? Is this NetFPGA-based > OF switch or the reference implementation? > > Have you looked at the Slicing wikipage? ( > http://www.openflow.org/wk/index.php/Slicing) > It describes how to setup a test using 3 hosts, and 1 switch with the > reference 1.0 implementation. > > there is dpctl add-queue commands that lets you add queues, and therefore > you shouldn't run tc commands on your own. > > The only case where you have to run a "tc" command is in order to create an > "artificial" bottleneck. This is also documented at the wikipage. > > Hope this helps, > Yiannis > > > On Wed, Mar 16, 2011 at 7:52 AM, Yi-Shou < > [email protected]> wrote: > >> Hi, >> >> I have bandwidth control problem that detail is like the following: >> >> https://mailman.stanford.edu/pipermail/openflow-discuss/2011-March/001980.html >> >> I already trace many issues about bandwidth control, like the following: >> "rate limit with tc" >> https://mailman.stanford.edu/pipermail/openflow-discuss/2010-August/001314.html >> "[openflow-discuss] Help! About bandwidth slicing" >> https://mailman.stanford.edu/pipermail/openflow-discuss/2010-November/001480.html >> etc... >> But I can not solve the problem until now, So now I have a guess for the >> problem, >> does it no support bandwidth controll tools include tc, cbq or htb? >> >> But I still can not sure, because I find somebody was success in the >> issue, like the following: >> >> https://mailman.stanford.edu/pipermail/openflow-discuss/2010-June/001088.html >> >> And the web page also teach how to control bandwidth by tc tool >> http://www.openflow.org/wk/index.php/Slicing#Testing_without_FlowVisor >> >> So, can somebody can tell me how to solve this problem? >> Any suggest will be helpful, thank you! >> >> Yi-Shou >> >> _______________________________________________ >> openflow-discuss mailing list >> [email protected] >> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss >> >> > > > -- > Yiannis . >
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