Re: [nv-l] problem with realtime plotting of expressions with graph.exe

["Alaa Farrag" <alaahelmy1@hotmail.com>]

Dear James

 

>> (1) If you query this same device for BandwidthUtilIn using the MIB Browser, does it respond with data?

 

actually I do not know how to use expressions with MIB Browser. I think that MIB browser accepts MIB objects only ( because it returns absolute values without any delta calculations)

this device responds to any MIB object query using MIB Browser

 

>>  (2) Have you already been collecting BandwidthUtilIn data with snmpCollect?

 

Yes, data collection for BandwidthUtilIn is working correctly

 

actually james I don't see any difference between graphing  a MIB object like ifInOctets and graphing an _expression_ like BandwidthUtilIn regarding the delta Calculations. the only difference in my view is that in the second case two MIB objects ( ifInOctets & ifSpeed ) will be queried in stead of one MIB object.

 

I read in this forum that some guys can plot expressions in real-time using xnmgraph on Linux environment so what I want to know is whether I can do this on windows platform  or not.

 

thanks for your time and help

 

Alaa Farrag

 

 

----- Original Message -----

From: James Shanks

To: nv-l@lists.us.ibm.com

Sent: Thursday, June 10, 2004 2:01 PM

Subject: Re: [nv-l] problem with realtime plotting of expressions with graph.exe

Two questions:

(1) If you query this same device for BandwidthUtilIn using the MIB Browser, does it respond with data?
(2) Have you already been collecting BandwidthUtilIn data with snmpCollect? To draw a graph of something like BandwidthUtilIn you need a value for the delta, for change over unit time, which means you'd need at least two data points to begin with.

James Shanks
Level 3 Support for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group
"Alaa Farrag" <alaahelmy1@hotmail.com>

"Alaa Farrag" <alaahelmy1@hotmail.com>
Sent by: owner-nv-l@lists.us.ibm.com

06/10/04 03:40 AM

Please respond to
nv-l

To	"The nv-l mailing list" <nv-l@lists.us.ibm.com>
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Subject	[nv-l] problem with realtime plotting of expressions with graph.exe

Hi all

we are using netview 7.1.4 over windows 2000 server

when I apply the following command:
graph.exe -mib 1.3.6.1.2.1.2.2.1.10::1:::::: 10.10.1.1

graph.exe window is opened and plots ifInOctets of instance 1 for 10.10.1.1 node

when I put instead of mib OID an _expression_ like following command

graph.exe -mib BandwidthUtilIn::1:::::: 10.10.1.1

graph.exe window is opened for about 10 seconds then it is closed with out giving any error message or logging any thing in nv.log
when I use a wrong _expression_ name it gives an error "could not convert _expression_ or mib variable"
this means that graph resolves the BandwidthUtilIn correctly.

thanks for your help

Alaa Farrag