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RE: [nv-l] Difference between Demand Poll and Object Information

To: "'nv-l'" <nv-l@lists.tivoli.com>
Subject: RE: [nv-l] Difference between Demand Poll and Object Information
From: "Allison, Jason (JALLISON)" <JALLISON@arinc.com>
Date: Mon, 30 Dec 2002 16:01:51 -0500
Maybe you should post the source of demandpoll and we can walkthrough it ;)

Have a great New Year!

Jason Allison
Principal Engineer
ARINC Incorporated
Office:  (410) 266-2006
FAX:  (410) 573-3026


-----Original Message-----
From: James Shanks [mailto:jshanks@us.ibm.com]
Sent: Monday, December 30, 2002 3:49 PM
To: nv-l@lists.tivoli.com
Subject: Re: [nv-l] Difference between Demand Poll and Object
Information


I don't quite understand, and perhaps I am not the right person to 
respond, as this is not my area of expertise.
But originally you said demand poll timed out but snmpwalk did not.  Now 
you are saying that they both work, but one returns something the other 
does not.  That's a big difference in my book. 

I don't know what is going on, and I am not certain that anyone could 
without a detailed analysis of what you get back in each case, but demand 
poll asks for certain specific SNMP information, while snmpwalk just 
starts at a certain value and does SNMP Get Next requests until the agent 
indicates there is nothing more to get.  So offhand, it sounds to me like 
a router configuration problem, as though this 4th interface is in one 
table on the router, which you can see with snmpget, but not in the tables 
that netmon specifically queries with demand poll.  Not being very netmon 
savvy, I cannot tell you what those are.  So I am done at this point.  But 
if you want someone to look at this in detail, I'd suggest you capture the 
output and call Support.

James Shanks
Level 3 Support  for Tivoli NetView for UNIX and NT
Tivoli Software / IBM Software Group




"M.Haseneder" <Martina.Haseneder@datev.de>
12/30/2002 09:45 AM

 
        To:     <nv-l@lists.tivoli.com>
        cc: 
        Subject:        Re: [nv-l] Difference between Demand Poll and Object
Information




 The nmdemandpoll brings out the same information, like the GUI-demand 
poll:
 I can see a Router with 3 Interfaces ,what I miss is a fourth existing
 interface.
 The SNMP Connectivity Test is successful.
 With a snmpwalk from the command line I can see an interface definition.
 I reach the interface with a ping.

 What else could help?

 M. Haseneder


> ----- Original Message -----
> From: "James Shanks" <jshanks@us.ibm.com>
> To: <nv-l@lists.tivoli.com>
> Sent: Friday, December 27, 2002 5:30 PM
> Subject: Re: [nv-l] Difference between Demand Poll and Object 
Information
>
>
> > Todd is suggesting that you try to narrow down the differences.  We 
can
> > only guess the details from what you have posted so far.
> >
> > Do you specify the community name with snmpwalk or use what's in
> > xnmsnmpconf as the GUI version of demand poll does?
> >
> > Does it time out with the command line "nmdemandpoll <nodename>" or 
just
> > from the GUI?
> > If nmdemandpoll works from the command line, but demand poll fails 
from
> > the GUI, then I suspect that your firewall is doing it.
> >
> >
> > James Shanks
> > Level 3 Support  for Tivoli NetView for UNIX and NT
> > Tivoli Software / IBM Software Group
> >
> >
> >
> >
> > "M.Haseneder" <Martina.Haseneder@datev.de>
> > 12/27/2002 10:52 AM
> >
> >
> >         To:     <nv-l@lists.tivoli.com>
> >         cc:
> >         Subject:        Re: [nv-l] Difference between Demand Poll and
> Object Information
> >
> >
> >
> > Hi Todd,
> > this is the thing:
> > - the snmpwalk works good
> > - the demand poll snmp-request times out
> >
> > The firewall and router people say (haven't sworn yet) their
> > configurations
> > are fine.
> >
> >
> > Martina
> >
> >
> >
> >
> >
> > Todd wrote:
> >
> > Display object information is just querying NetView's database, so
> > that's a red herring.
> >
> > Does snmpwalk done from the command line work?  If not, there is an
> > snmp communication problem with the device--either a route
> > unavailable, snmp traffic being blocked by the firewall, or a wrong
> > community name.
> >
> >
> >
> >
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> >
> > *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)
> >
> >
> >
> >
> >
> > ---------------------------------------------------------------------
> > 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)
> >
> >
>


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