Hello Justin, I would like to find delay between two OVS switches that have been connected. So, I need to have the timestamp of the packets that have been entering the switch. I would like to store the timestamp of the packets in a file by uniquely representing the packets. Could I do this by altering the code in datapath module or can I query the database of OVS and flow tables ?
Thank you, Ajeeth Kannan On Tue, Oct 18, 2016 at 8:24 PM, Ajeeth Kannan (RIT Student) <ak5...@rit.edu > wrote: > Hello Justin, > > I would like to uniquely identify a packet that is being going through the > switch and store it in a file with the timestamp when it reaches an OVS. > This is what I mentioned as capturing timestamps initially. Could I do this > by altering the code in datapath module? > > Thank you, > Ajeeth Kannan > > On Tue, Oct 18, 2016 at 7:29 PM, Justin Pettit <jpet...@ovn.org> wrote: > >> As I mentioned before, please don't drop the mailing list. >> >> It's open source, so you're free to modify the datapath. Once again, I >> don't know what you're storing or where you'd store it, but you can modify >> the code on your system as much as you'd like. It's not clear whether the >> patches would be accepted upstream due to the questions I mentioned earlier. >> >> --Justin >> >> >> > On Oct 19, 2016, at 12:58 AM, Ajeeth Kannan (RIT Student) < >> ak5...@rit.edu> wrote: >> > >> > Hello Justin, >> > >> > Could I alter the code in datapath module to store the timestamp ? >> > >> > Thank you, >> > Ajeeth Kannan >> > >> > On Tue, Oct 18, 2016 at 6:45 PM, Justin Pettit <jpet...@ovn.org> wrote: >> > Please don't drop the list. >> > >> > The dataplane is just forwarding packets through it, so I'm not sure >> what it would store. For a particular datapath flow, we keep the last time >> that a packet hit it, but that's about it. As I mentioned, if you want to >> send copies of packets to a collector, you could look at sFlow or IPFIX. >> > >> > --Justin >> > >> > >> > > On Oct 18, 2016, at 8:04 PM, Ajeeth Kannan (RIT Student) < >> ak5...@rit.edu> wrote: >> > > >> > > Hello Justin, >> > > >> > > I am trying to store the timestamp of the packets that go through >> OVS. Is there a way to do it ? >> > > >> > > Thank you, >> > > Ajeeth Kannan >> > >> > >> >> >
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