Hi Burton, thanks for your hint. It seems to me you mean the COUNTERSAMPLE and FLOWSAMPLE packets, is that correct? i am pretty sure my switch sends flowsamples, because ntop does show graphics and divides the traffic by protocol etc etc, the relation of the traffic seems to be absolutely correct, only it seems that ntop forgets to multiply the sflow traffic by the sampling interval :/ regards, johannes
Am Sonntag, den 02.11.2008, 07:54 -0600 schrieb Burton Strauss III: > There are two types of sFlow records and ntop only reads one of them. (The > details are in the FAQ). You may need to change your router/switch to send > the other type along too. > -----Burton > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of > Gerhard Mourani > Sent: Friday, October 31, 2008 1:34 PM > To: ntop@unipi.it > Subject: [Ntop] sFlow data not accurate > > 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
