This doens't help, no trafic at all are seem. If I look inside the sFlow plugin page, I can see this at the end of the page:
Number of Flows with Bad Data 0 Total Number of Flows Processed 0 The sFlow Interface Statistics appears correctly. It's look like the plugins work and receive data from the switch but Ntop doesn't procced them. > Check the back traffic - this has come up before - IIRC there are two > kinds > of sFlow packets, one is some sort of summary which ntop sees and ignores. > So you may not really be getting data. But I'm fuzzy on the details - > google for it. Or check the FAQ and see if this makes sense: > > Q. sFlow doesn't work. > A. Check this out: > > This talks about a bad experience I had setting up sFlow reception. > For > the longest > time, I could see that ntop was getting sflow packets, but no data > would show up. > It turns out the switch I was exporting from didn't see any real > traffic, and it was > just sending COUNTERSAMPLE packets..... > > - - - - - - - - I figured out that it was indeed "invalid" sflow > packets. > > Apparently, sflow sends COUNTERSAMPLE and FLOWSAMPLE packets. > COUNTERSAMPLE packets > give a quick look at interface counters on the machine, whereas > FLOWSAMPLE packets > are actual packet fragments from IP connections. Ntop seems to simply > parse, > debug_print, and discard COUNTERSAMPLE packets...which made it > confusing to look at > the debug output and say "wow, lots of sflow coming in!" when in fact > it was just for > show, as Burton suggested. I added more switches (with active > connections) to the > switches sending sflow packets and I now have hosts with pretty > graphs. > > > > -----Burton > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: Tuesday, March 29, 2005 8:14 AM > To: [email protected] > Subject: [Ntop] sFlow not working! > > Hello, > > I'm trying to activate sFlow with Ntop 3.1 and it's not working, no trafic > visible. Here my config: > > sFlow version: 2.99 > Local Collector UDP Port: 6343 > Virtual sFlow Interface network Address: 172.16.0.0/255.255.0.0 > > Flow Senders IP is: 172.16.2.251 > Flow Collector (Ntop) IP is: 172.16.1.215 > > Thanks, > > _______________________________________________ > Ntop mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop > > _______________________________________________ > Ntop mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop > _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop
