Hello, On Thu, 20 Nov 2014 22:18:52 +0000 Llorente Santos Jesus <[email protected]> wrote:
> I am a researcher from the Aalto University of Finland. I'm particularly > interested in SDN and OpenFlow. I have been following you work for quite some > time already and I wanted to congratulate you for the great effort and > quality. We have chosen Ryu as the default SDN Controller in our research and > experiments. We hope to contribute in the future to its development too. > > After trying a number of OF software switches, I landed on your certification > site. It was actually quite amazing to see all the testing that has been done > on different software and hardware equipment. However, and this is the main > reason of my email, in my attempt to replicate your results I am hitting a > wall. > > I am using VirtualBox machines running Ubuntu server editions. The networking > uses Intel NICs (e1000 driver), compatible with Intel DPDK and also virtio. > The only difference between these 2 is performance, really. There is no VLAN > stripping in any of the interfaces and MPLS also works correctly. I have > configured 2 machines to serve as OF switches, following the instructions. > There are 3 interfaces between each other. The connection to the controller > is on a different interface (out-of-band). To avoid problems, the offloading > has been disabled from all interfaces via the ethtool package. > > I am testing Lagopus (DPDK), OpenvSwitch (kernel and userspace), CPqD > (ofsoftswitch13) and LINC. For example, I tried testing a Lagopus, so I chose > Lagopus for both test switch and auxiliary switch (for maximum compatibility, > or so I thought). The results obtained are far from what you have in your > website. The following tests were conducted just for the action and set > field; as you can see the results are quite bad (see figure below). > > Could you explain to me how did you do your tests? I'm afraid I must be doing > something really wrong to achieve these results... What have you used as > auxiliary switch? Have you already checked out the following? http://osrg.github.io/ryu-book/en/html/switch_test_tool.html We use OVS userspace mode as auxiliary switch. We might be able to tell something with an error log. > PS: I have some ideas that I'd like also to discuss with you about future > development of Ryu and extra functionality. This is the place for such discussion. ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
