Hi Ralf-
Are you running both the controller(s) and cbench locally on the same
machine? Have you checked to ensure nothing else is running on the
controller port before launching the controller under test? Did you
check out the latest oflops from git, and compile it against the correct
OpenFlow version (1.0)? What command line are you using for both the
controller(s) and cbench? And can you attach logs from both?
-David
On 1/14/2013 12:27 PM, [email protected] wrote:
Hello Openflow Mailinglist :),
i am relatively new to openflow so if this question has already been
asked some times i am sorry, but i couldnt find any further info on
this issue on the net than this link (which has no solution and is nox
specific -> https://github.com/noxrepo/nox/issues/5)
I have setup a small openflow testbed using a server installed with
Ubuntu 11.10, I set up the beacon, floodlight and nox controller
(compiled from source) to get an idea on starting with openflow. My
first goal was to get to a point where i can do my own tests for
applications - as a basic idea i started with the benchmarks pointed
out at
http://www.openflow.org/wk/index.php/Controller_Performance_Comparisons .
I followed the instructions and settings outlined on the page and all
controllers are initially running, but upon running cbench i am
getting output similar to the following after a few seconds:
controller msgbuf_read() = -1: msgbuf_read: Connection reset by peer
the controller is still receiving messages at this point and ends with
disconnecting the switches still running the controller, cbench
terminates.
At first i thought this related to memory issues on the controller
side so i increased this memory, same effect.
same relates to setting up the nox controller - cbench terminates with
the similar message after a few seconds, on the controllerside a
"boost::asio::streambuf too long" exception is thrown. (i am using the
default switch implementation as outlined on the performance
comparison page)
floodlight also has the same behaviour as beacon
I also tried to set up a debian sid installation on the same hardware
and ran into the same issues. Also a virtual setup using ubuntu on a
virtualbox install has the same issue
Testbench Server:
HP DL380G5
2x Xeon 2.84Ghz Quadcore
20GB DDR2
running Ubuntu 11.10 x64
what am i doing wrong? any hint is appreciated.
regards,
Ralf Leichter
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