Hi, Siraj. Did you type "--with-l26=/path/to/linux-2.6/" in directly or did you give it the correct path to your kernel headers? On Debian, you'd probably want to run it like this:

        ./configure --with-l26=/lib/modules/`uname -r`/build

The OpenFlow wiki has full instructions for Debian:

        http://openflowswitch.org/wk/index.php/Debian_Install

By the way, this mailing list is really focused on NOX, which is a controller for OpenFlow. There are a lot of OpenFlow developers on this mailing list, but questions specific to OpenFlow should probably go to them. It doesn't appear that there's a general mailing list at openflowswitch.org, so I'll ping them about that...

Also, you'll need a newer version of OpenFlow than is available on openflowswitch.org. I'd recommend the following:

        http://noxrepo.org/releases/openflow-0.9.0~b1.tar.gz

In the very near future, the OpenFlow consortium will be releasing v0.8.9, which will be compatible with NOX. Until then, you'll need to use the tarball shown above.

Good luck.  Let me know if you continue to have issues.

--Justin


On Nov 23, 2008, at 2:14 PM, siraj rathore wrote:

Dear Sir

I am PhD student at Royal Institute of technology Sweden. I am interested to learn about openflow switches and to do research in this field. I am facing problem regarding Kernel based open flow installation. i am using Debian unstable kernel 2.6.26. To build open flow switch in kernel space i executed following commands according to instructions given on the nox and open flow websites.
( i am using openflow version 0.8.2)

./configure --with-l26=/path/to/linux-2.6/
make

In result following binaries are created

openflow-v0.8.2/secchan/secchan
openflow-v0.8.2/utilities/dpctl
openflow-v0.8.2/controller/controller

But
openflow-v0.8.2/datapath/linux-2.6/openflow_mod.ko
"openflow_mod.ko" is not present there. Therefore i could not load kernel space switch.

Can you guide me to solve this issue.


Regards
Siraj







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