Re: [ovs-discuss] Capturing timestamp in a switch

2016-10-18 Thread Ajeeth Kannan (RIT Student)
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 alte

Re: [ovs-discuss] Capturing timestamp in a switch

2016-10-18 Thread Ajeeth Kannan (RIT Student)
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

Re: [ovs-discuss] Capturing timestamp in a switch

2016-10-18 Thread Justin Pettit
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

Re: [ovs-discuss] Capturing timestamp in a switch

2016-10-18 Thread Justin Pettit
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 coul

Re: [ovs-discuss] Capturing timestamp in a switch

2016-10-18 Thread Justin Pettit
> On Oct 18, 2016, at 12:43 AM, Ajeeth Kannan (RIT Student) > wrote: > > Hi Team, > > I would like to get the timestamp for the packets that are being captured by > an OVS. Is there any possible command to do it or should I need to modify the > OVS code to do this ? > > Should I query the D

[ovs-discuss] Capturing timestamp in a switch

2016-10-17 Thread Ajeeth Kannan (RIT Student)
Hi Team, I would like to get the timestamp for the packets that are being captured by an OVS. Is there any possible command to do it or should I need to modify the OVS code to do this ? Should I query the DB or flow-tables to get the timestamps of the captured packets ? Thank you, Ajeeth Kannan