RE: [Devmon] Beta 0.1.1 incorrect load reported

[Schwimmer, E. E *H. <EE...@hs...>]

Okay, found the problem.  I was assuming that the upper counter limits
were 2^32 or 2^64, which they were, if I hadnt already transformed
the data (multiplying the ifOctets aliases by 8 to render the number
of bits, and THEN doing a delta on that).

So, lesson learned.  Do your deltas only on non-transformed snmp
data, if you can help it.  I've changed the templates to reflect
this, but I've also added an optional "upper limit" variable to
the DELTA transform, which lets you set the value at which=20
at the alias you are transforming will counter-wrap.  Use this
option when you cant avoid using a delta on data that has
already been transformed.

The updated files are available on the sf website.  Sorry for
making you guys download and re-download this stuff.

-Eric=20

> -----Original Message-----
> From: dev...@li...=20
> [mailto:dev...@li...] On Behalf=20
> Of Schwimmer, Eric E *HS
> Sent: Tuesday, February 28, 2006 4:55 PM
> To: dev...@li...
> Subject: RE: [Devmon] Beta 0.1.1 incorrect load reported
>=20
>=20
> Are you sure that isnt the right value?  Hah hah!  I kill me.
>=20
> It's probably a bug /w the counter-wrap code I just implemented.
> I'll take a look at it.
>=20
> -Eric Schwimmer
> Network Engineer
> UVA HSCS Network Engineering =20
>=20
> > -----Original Message-----
> > From: dev...@li...=20
> > [mailto:dev...@li...] On Behalf=20
> > Of Craig Boyce
> > Sent: Tuesday, February 28, 2006 4:47 PM
> > To: dev...@li...
> > Subject: [Devmon] Beta 0.1.1 incorrect load reported
> >=20
> > Hi,=20
> >=20
> > I have just put down the latest beta which has resolved the=20
> > ioctl errors, Thanks for that fix.=20
> > I have now seen an issue with the Cisco 3750 and 2950=20
> > switches that I am monitoring, One of the Gig ports on the=20
> > 3750 is periodically reporting a load of 275324.54 Tbps=20
> > (27532453791.15%) which seems a little high.
> >=20
> > Thanks=20
> >=20
> > Craig=20
> >=20
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