Jim,

Thank you for the quick and verbose reply.  This gives me a very good 
place to start. 

--Gary
 



From:   "Pfleger, Jim" <[email protected]>
To:     Gary Blydenburgh/intd...@intdata, "Spectrum users" 
<[email protected]>
Date:   11/02/2010 06:52 PM
Subject:        Re: [spectrum] Counter Deltas



Gary-

You're not going to be able to do all that you want in just the watch
configuration. You'll also need to set up some event rules in the event
configuration editor (ECE). First, configure the watch to generate an 
event
whenever the delta is greater than zero, but don't generate an alarm. 
(Let's
call this event 1 for this discussion.) Also, assuming that you want to
check ifInErrors on each available interface, and not just one particular
one, you'll want to make sure to set the instance parameter of the watch 
to
"All" and change your watch expression to COUNTER_DELTA(ifInErrors.#). 
This
way you'll get one event per failed interface per device.

Then in the ECE, create event 1. On its alarms tab, you'll want this event
to generate your warning alarm (call it alarm 1). Again, since you want 
one
alarm per interface, you'll need to use an event discriminator.
Specifically, you'll want to set the discriminator to 8, which is the 
event
variable that contains the instance identifier - in this case the ifIndex.

Now, on the event rules tab, create an "event rate" rule that generates a
second event (event 2) when this one occurs two or more times in five
minutes. In the ECE, find and open event 2. On the alarms tab set its 
event
discriminator to 8, have it generate alarm 2, and also clear alarm 1 (so 
you
don't have both a warning and critical alarm).

Of course this is just a high-level pass, and I haven't tried to actually
implement this, but this should be enough to get you started. And don't
forget to set your watch to run more than once per five minutes or you'll
never get a critical alarm. :-)

HTH,
Jim


-- 
JIM PFLEGER  |  Application Architect  |  Insight  |  insight.com

t. 480.889.9680 f. 480.889.9599  [email protected]




On 11/2/10 1:50 PM, "Gary" <[email protected]> wrote:

> Greetings all,
> 
> I am trying to create a couter_delta watch on on the ifInErros 
attribute.  I
> want to generate a crtical alarm if I have two delta changes in a 5 
minute
> period, and generate a warning alarm if we only get 1 delta in 5 
minutes.  I
> can't figure out how to get this done in the "Create Watch" screen.
> 
> The expression I have is COUNTER_DELTA(ifInErrors), what I can't seem to 
find
> is how to get time associated with the expression.  I didn't see 
anything in
> the Thresholds tab that would help me.
> 
> Can anyone point me in the right direction?
> 
> --Gary
> ---
> To unsubscribe from spectrum, send email to [email protected] with the 
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