Since these counters are cumulative you have to get the delta, for that
divide by 8 for the bits, then divide by the time period to get bits per
second (how transmission lines are usually rated).

(Inoctects[t2] - inoctets[t1]) / 8  =  bits counted in the time period.
For a one minute time period you'd divide this number by 60 to get bits per
second.

If you gathered your example info in one-minute increments, you'd get appx
640Kbps or about 32% utilization of a 2mbps line.

_marlon hickey
nemch
sr network engineer


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jeremy and Imogen
Thomas
Sent: Monday, January 13, 2003 6:41 AM
To: [EMAIL PROTECTED]
Subject: [WhatsUp Forum] Bits bytes and Octets - Newbie

Dear all

I am trying to get an alert out of WUP when usage on a 2Mb line goes over a
certain amount.  'Get' commands return this value:

ifInOctets.23=2178299753

ifOutOctets.23=2485229334

Can anyone number crunch this, (10 digit figure),to help me understand the
present usage ?
It does not match what appears in our MRTG graph of that interface.  Which
equals about 1Mb of traffic at peak this morning.

Thanks

Jeremy.T

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