Re: [Devmon] devmon.cfg best way to set it up

[Joshua K. <fo...@tr...>]

What I am wondering is why that when I went from 10 forks to 30 forks did my
average poll time not go down?  

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Byam,
Charles R
Sent: Saturday, May 10, 2008 9:17 AM
To: dev...@li...
Subject: Re: [Devmon] devmon.cfg best way to set it up

On 5/9/08 4:47 PM, "Joshua Krause" <fo...@tr...> wrote:

> I know a lot of the people in this group are using devmon to poll a lot of
> cisco equipment along with others.  I am trying to see what is the setup
of
> other people on there devmon.cfg.  I am using devmon to monitor 283 hosts
> which are mostly all cisco.  Most of my devices are 2950¹s and 4948¹s but
I
> also have some 2970¹s, 3500¹s, 4500¹s, and 4 6509¹s, which are fully
loaded.
> The 6500¹s have probably 3-4 48 port gig blades and then 2-3 24-48 port
sfp
> ports.  And I notice devmon is exceeding cycle times, so I¹ve up¹d the
cycle
> time to 120 from 60.  I have changed the number of forks from 10-30 and
still
> having trouble exceeding cycle times.  I have recently converted over my
> if_stat and if_load to use the 64 bit counters for all my switches.  And I
am
> noticing a new entry in my devmon.log ³Timed out waiting for delta
transform
> on oid ifOutOps_T for gsonc-spg-6509-2 to complete² which is from one of
the
> if_load template for the 64 bit counters.
>  
> My server I am using is an IBM i346 series with 4 Intel(R) Xeon(TM) CPU
> 3.20GHz and 4-8 gig ram.  I use my server to run hobbit and devmon off of
it.
> So I am trying to see what is the best way to setup my devmon.cfg to allow
me
> to poll at a descent rate and not use up the cpu and load.  I know some
people
> may be monitoring more or might have just tweaked there devmon.cfg where
it is
> better utilized.  As you can tell I am not using the database function and
if
> that is a better way to do it I will go that route.  Here is mine:
>  
<< snip, snip >>

I'm monitoring about 1500 devices/route points and currently have 5 devmon
monitors reporting to a single hobbit display.  I think you'll find that
spreading the snmp load across several devmon instances will improve your
performance.  Think virtualization.

-- 
Chuck Byam
Network Engineer
University of Virginia Health System
O: 434.924.1686
C: 434.566.1485


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