Hi Steve, Thanks for the answer. But that will measure the total time it takes for a packet to traverse the network and reach it's destination. I think that will be a very useful benchmark further down the road to measure network performance. However, for now, i'm considering only the time it takes for the switch to actually send out the packet. I am experimenting different strategies to handle flow misses at the switch and need to benchmark them. For example, on detecting a link failure the switch could already have an alternative installed, or it could contact the controller and wait for the new flow rule; both cases would surely report very different benchmarks.
On Thu, Mar 6, 2014 at 11:47 PM, Steve Noble <[email protected]> wrote: > Hi, > > I have done this before using an IXIA traffic generator to time the > installation of the prefixes. > > I don't think you need to modify the code, just find a tool to generate > packets with time stamps and determine the time it takes from the first > packet sent to the first packet received at the destination. > On Mar 6, 2014 3:39 PM, "João Gomes" <[email protected]> wrote: > >> Hello all, >> >> I have a network setup in mininet using openvswitch. >> My switches are using the OpenFlow 1.3 protocol and i am using Ryu as my >> openflow controller. >> I am trying to calculate the elapsed time since a switch requests the >> controller for a new flow rule and the time the rule is installed in the >> switch. >> >> Is this something i can do with openvswitch without modifying any source >> code? If not, where do you recommend i start looking to be able to this? >> >> Any help is appreciated. Thanks. >> >> Best Regards! >> >> >> _______________________________________________ >> discuss mailing list >> [email protected] >> http://openvswitch.org/mailman/listinfo/discuss >> >>
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