Thanks for the suggestion on sampling and polling interval. And the mininet dashboard looks great, will definitely try in a couple of days.
Thanks a lot. On Tue, Sep 20, 2016 at 11:39 PM, Peter Phaal <peter.ph...@inmon.com> wrote: > It looks like you are using Mininet. You might find following real-time > dashboard useful for visualizing the sFlow data: > > http://blog.sflow.com/2016/05/mininet-dashboard.html > > You were originally sampling at 1-in-1. This will impact performance and > limit the size of network you can build and monitor with Mininet. Backing > off to 1-in-10 greatly reduces the monitoring overhead. In production OVS > deployments sampling rates of 1-in-1000 are more reasonable. > > A polling interval of 1 second tends to be inaccurate since the switch > port counters are only updated every second. Backing off to a 10 second > polling interval will give less noisy results and also reduce overhead. > > > > On Sep 20, 2016, at 12:23 PM, Syed Faraz Ali <farazal...@gmail.com> wrote: > > Thanks a lot. > Just tested and both sFlow collectors are receiving the traffic. > > On Tue, Sep 20, 2016 at 9:06 PM, Peter Phaal <peter.ph...@inmon.com> > wrote: > >> >> > On Sep 20, 2016, at 11:18 AM, Ben Pfaff <b...@ovn.org> wrote: >> > >> > On Tue, Sep 20, 2016 at 08:06:19PM +0200, Syed Faraz Ali wrote: >> >> Is there a way to configure multiple sFlow instances running on the >> OVS? >> >> I configured an instance below: >> >> >> >> *ovs-vsctl -- --id=@sflow create sflow agent=eth0 target=\" >> 192.168.1.1:6343 >> >> <http://192.168.1.1:6343>\" header=128 sampling=1 polling=1 -- set >> bridge >> >> s1 sflow=@sflow* >> >> >> >> However, the instance gets overwritten if i configure another instance >> >> (though with a different IP and port). >> >> >> >> Multiple sFlow instances are not supported by OVS? >> > >> > Each bridge can have one sFlow instance. >> >> You can send sFlow from the single instance to multiple destinations: >> >> sudo ovs-vsctl -- --id=@sflow create sflow agent=eth0 target=[\" >> 10.0.0.70:6343\",\”10.0.0.72:6343\"] header=128 sampling=10 polling=10 >> -- set bridge s1 sflow=@sflow >> >> > >
_______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
