Trans field and rahisto
Carter Bullard
carter at qosient.com
Sat Jul 18 12:22:35 EDT 2009
Looks like a big bad bug.
I'll look at it this weekend.
Carter
On Jul 17, 2009, at 2:13 PM, Nick Diel wrote:
> HI,
>
> I have a couple of questions and issues with the trans field.
>
> First exactly when does Argus set the trans count to 1? I noticed
> some simple 1 packet volleys have a trans count of 0, while other 1
> packet volleys have a trans count of 1. Of course all the other
> flows have a trans count of 1, just curious what differentiates the
> single packet flows.
>
> Second, it seems racluster isn't adding up the trans field
> correctly, here is an example
>
> ra -r file.argus -s saddr trans
> 27.8.77.166 1
> 27.8.77.166 1
> 18.9.27.219 1
> 18.9.27.219 1
> 18.86.96.147 1
> 18.86.96.147 1
> 19.32.203.136 1
> 19.32.203.136 1
>
> racluster -r file.argus -m saddr -s saddr trans
> 19.32.203.136 4
> 18.86.96.147 3
> 18.9.27.219 4
> 27.8.77.166 3
>
> Also I have been feeding this same data to rahisto and have been
> seeing some very strange data.
>
> If I feed the non racluster file (from above) into rahisto I get:
>
> rahisto -H trans 5:1 -r file.argus
> N = 9 mean = 1.000000 stddev = 0.000000 max = 1 min = 1
> median = 1 95% = 1
> Class Interval Freq Rel.Freq Cum.Freq
> 1 0.000000e+00-1.000000e+00 0 0.0000% 0.0000%
> 2 1.000000e+00-2.000000e+00 20 222.2222% 222.2222%
> 3 2.000000e+00-3.000000e+00 0 0.0000% 222.2222%
> 4 3.000000e+00-4.000000e+00 0 0.0000% 222.2222%
> 5 4.000000e+00-5.000000e+00 0 0.0000% 222.2222%
>
> N is off by 1, should be 8. Rel. Freq should be 8 not 20, and of
> course the percentages are off.
>
> Next I fed the cluster data into rahisto
>
> racluster -r file.argus -m saddr -w - | rahisto -r - -H trans 5:1
> N = 8 mean = 3.807943 stddev = 4.015635 max = 12 min = 0
> median = 3.500000 95% = 4
> mode = 3
> Class Interval Freq Rel.Freq Cum.Freq
> 1 0.000000e+00-1.000000e+00 0 0.0000% 0.0000%
> 2 1.000000e+00-2.000000e+00 0 0.0000% 0.0000%
> 3 2.000000e+00-3.000000e+00 0 0.0000% 0.0000%
> 4 3.000000e+00-4.000000e+00 5 62.5000% 62.5000%
> 5 4.000000e+00-5.000000e+00 -1798865444
> 31201273600.0000% 31201273600.0000%
>
> N should be 4, mean should 3.5, max should be 4, rel. freq should be
> 4 not 5, and of course the percentages are off here too.
>
>
> Nick
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