Patrick, this is done on the switch, if it supports it. My switches (HP ProCurve) won't let me sample any more often than every 20st packet :/ regards, johannes
Am Montag, den 03.11.2008, 08:18 -0800 schrieb Patrick Topping: > Gerhard, > > I am suffering from the same issue.... Where did you make the change > for this --> I've configured the rate to 1 on all ports. > > Thanks in advance. > > -Patrick > > -------------------------- > > > Gerhard Mourani wrote: > > Hello Luca, > > > > > How did you configure sflow in your foundry? > > I've configured the rate to 1 on all ports. After doing this, I can see > > that captured informations are better accurate but not 100%. For > > example, if I transfers 100 MB now, I will see around 90 MB. I think I > > cannot do better than that because it use sampling as you said. > > > > Gerhard, > > > > Luca Deri wrote: > > > > > Gerhard > > > sflow uses sampling. hence if you send let's say 100 you will see 1 > > > using sflow. How did you configure sflow in your foundry? > > > > > > Luca > > > > > > On Oct 31, 2008, at 7:33 PM, Gerhard Mourani wrote: > > > > > > > > > > > > > Hello List, > > > > > > > > I've activated the sFlow plugin into my ntop version 3.3.8 to capture > > > > and display sFlow data coming from my "Foundry Network FastIron Edge > > > > 9604" model. If I check inside the plugin page of sFlow about 'sFlow > > > > Interface Statistics' everything are correct and reported data > > > > transfers > > > > for 'Administrative' or 'Operational' status are ok. But now my > > > > problem > > > > is when I check inside the ntop web interface and especially about > > > > collected data, here the problem is that returned informations about > > > > amount of data are wrong, I mean the amount of data doesn't correspond > > > > to what have really been transfered. So for example if I transfer 135 > > > > MBytes I can only see 295.0 KBytes in ntop. Someone know how to fix > > > > this? > > > > > > > > Thanks for your helps, > > > > Gerhard, > > > > _______________________________________________ > > > > Ntop mailing list > > > > Ntop@unipi.it > > > > http://listgateway.unipi.it/mailman/listinfo/ntop > > > > > > > > > > > _______________________________________________ > > > Ntop mailing list > > > Ntop@unipi.it > > > http://listgateway.unipi.it/mailman/listinfo/ntop > > > > > > > > _______________________________________________ > > Ntop mailing list > > Ntop@unipi.it > > http://listgateway.unipi.it/mailman/listinfo/ntop > > > > > > > _______________________________________________ > Ntop mailing list > Ntop@unipi.it > http://listgateway.unipi.it/mailman/listinfo/ntop _______________________________________________ Ntop mailing list Ntop@unipi.it http://listgateway.unipi.it/mailman/listinfo/ntop
