Re: [nv-l] (NV 7.1.2) Bandwidth Utilization Collects

[daniel.companeetz@clorox.com]

Hi David,

Is this WAN or LAN. What could be happening if it is the case on routers frame relay links, is that BW Utl is being reported on a PVC basis, but if you are constantly bursting over your PVC (due to a big port) it may appear that you are using, consistently more than the available BW.

So for example you tell your router that your PVC is 32K (bandwidth statement in the router's serial link) and Netview gets that from the SNMP discovery poll. Your port, however,  is 64K, and you constantly burst up to port speed because your network and service provide allows. Guess what happens with your utilization! Percentage wise is 200% over the PVC bandwidth.

More to investigate.

Regards,

Daniel Companeetz
Clorox..

David_Moon@lincolnelectric.com 09/26/02 12:05 PM

To:        nv-l@lists.tivoli.com         cc:                 Subject:        [nv-l] (NV 7.1.2) Bandwidth Utilization Collects

List,

I am using the Bandwidth Utilization In and Out expressions in the SNMP
Data Collect section of Netview 7.1.2. I have set this up to collect data
on my routers and switches. However, the results I am seeing are totally
confusing me. I show a total utilization on some switches of over 100%. If
I am correct in my assumption, the value returned during the BW Utilization
SNMP collect should show the % of total utilization. I am trying to figure
out how the utilization on some switches is beyond their physical
capabilities. Either my network regularly eats it's wheaties or I have done
something wrong! Does anybody have any input on this. I have had a running
discussion about this with Netview support but they seem to think that this
problem has to do with the way our Cisco devices are reporting their IF
In/Out Octets. Our Network administrator swears that everything is correct
on the Cisco side.

Here is one of my events from the data collection.

Thu Sep 26 14:51:42 2002 LINCOLN_B.lecis D BandwidthUtilOut 41 threshold
exceeded (>300.00): 412.67 BandwidthUtilOut

All ideas are welcome!

Thanks,
Dave Moon
Systems Architect
Lincoln Electric Company


**************************************************************
Note:  The information contained in this message may be
privileged and confidential and protected from disclosure.
If the reader of this message is not the intended recipient,
or an employee or agent responsible for delivering this
message to the intended recipient, you are hereby notified
that any dissemination, distribution or copying of this
communication is strictly prohibited. If you have received
this communication in error, please notify us immediately by
replying to the message and deleting it from your computer.
Thank you,
The Lincoln Electric Company
**************************************************************



---------------------------------------------------------------------
To unsubscribe, e-mail: nv-l-unsubscribe@lists.tivoli.com
For additional commands, e-mail: nv-l-help@lists.tivoli.com

*NOTE*
This is not an Offical Tivoli Support forum. If you need immediate
assistance from Tivoli please call the IBM Tivoli Software Group
help line at 1-800-TIVOLI8(848-6548)