From: Roy Dempsey (roy.dempsey@gmail.com)
Date: Sun Jun 12 2005 - 09:05:27 GMT-3
Georg,
It was actually a collegue, who had read it in a lab scenario. However
Brian McGahan from IE, in a reply to the group, seems to have
confirmed that I was indeed incorrect.
It relates to whether the value being monitored can only rise, or
whether it can rise and fall. For example, the amount of errors seen
on an interface will only increase, and should use delta.
Values which rise and fall like CPU utilisation should use absolute
values, because the rate of change which delta examines isn't useful
in these cases, only the currently measured value.
I think I have paraphrased Brian correctly. If not, I apologise.
Do I understand it? I'm not sure yet....:-)
Regards
Roy
On 6/11/05, Hotmail <pauwen@hotmail.com> wrote:
> Hello Roy,
>
> I would have said the same as you, exceed means absolute, and increase means
> delta. When you say you are being told otherwise, is that from an exercise,
> or solution book ?
>
> Regards,
>
> Georg
> ----- Original Message -----
> From: "Roy Dempsey" <roy.dempsey@gmail.com>
> To: "Cisco certification" <ccielab@groupstudy.com>
> Sent: Thursday, June 09, 2005 6:14 PM
> Subject: RMON: Absolute vs delta
>
>
> > If a question asks to generate an RMON alert when the number of input
> > errors on an interface exceeds 50 per second, should you use absolute
> > or delta? This sounds like an absolute event, rather than a delta
> > event.
> >
> > If it asked you to alert when the input errors *increased* by 50 per
> > second I would have thought this was a delta event. However, I'm being
> > told differently...
> >
> > Can anyone explain how you can differentiate between them?
> >
> > Thanks
> > Roy
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
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> >
>
-- Regards, Roy
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