Why do the hard work? Point MRTG at it and let it graph it all for you.
Here are some examples:
http://artoo.net/mrtg/
Download from:
http://ee-staff.ethz.ch/~oetiker/webtools/mrtg/
--
Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+
List email: [EMAIL PROTECTED]
Homepage: http://jason.artoo.net/
Cisco resources: http://r2cisco.artoo.net/
""John Neiberger"" <[EMAIL PROTECTED]> wrote in message
sac8456a.085@fsutil01">news:sac8456a.085@fsutil01...
> I'll try to restate this in a way that makes sense, but the text you
> quoted says it pretty well. The MIB data you are accessing is stored as
> a counter that increments for each byte transmitted and received. Let's
> say you polled the router and got this information:
>
> InOctets: 543980
> OutOctets: 234095
>
> Does that tell you anything? Not really. However if you wait a minute
> and poll it again you could see the amount of traffic in and out of that
> interface over a period of time, which gives you a rate. A single poll
> will not give you any usefull information. To get a rate, you need to
> sample the data over time. In this case the data is stored in bytes so
> you multiply times eight to get the rate in bits per second.
>
> Does that help? If not, I'll try again later after some more coffee.
> <g>
>
> John
>
> >>> "Luong, David" <[EMAIL PROTECTED]> 4/2/01 8:50:40 AM >>>
> Hi Techies,
>
> I have recenty been reading Cisco Press' new book called "Peformance
> and
> Fault Management" and they stated to measure utilization on a WAN
> interface
> (full-duplex); it is recommended to use the following formula:
>
> max ( delta(ifInOctets), delta(ifOutOctets) x 8 x 100)
> ------------------------------------------------------
> (number of seconds in delta) x ifSpeed
>
> They state because of "MIB II variables are stored as counters, you
> must
> take two poll cycles and figure the difference between the two" hence
> the
> delta number. I don't understand why two poll cycles are needed and why
> is
> using "counters" attributed to this?
>
> Thanks,
>
> David
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