nv-l

RE: [NV-L] Demandpoll Problems

2006-07-11 08:50:16
Subject: RE: [NV-L] Demandpoll Problems
From: "Liu, David" <david.liu AT eds DOT com>
To: "Tivoli NetView Discussions" <nv-l AT lists.ca.ibm DOT com>
Date: Tue, 11 Jul 2006 14:42:04 +0200
Mark,
 
Thank you for your advice.
 
I have tried the snmpwalk command with -d option and found that the failure one was using the community string index! e.g. the good one using the string "private" and the failure one using the string "private@10". I didn't specify with the -c option.
 
Both switches configured VLAN1, VLAN10 and VLAN300. The good one was using VLAN1 IP address and the failure one was using VLAN10 IP address (different subnets). I have changed now the failure one with the VLAN1 IP address (same subnet as the good ones). Then the -d option showed the community string is right ("private"). Up to now (two hours past), Netview has not discovered it (my Netview machine was low configured (cpu and mem) with quite big database). Let me verify tomorrow.
 
Another difference was the good one has configured a virtual loopback interface (without IP address assigned) and the failure one not. I added a virtual loopback interface to the failure one too to make them "identical".
 
Regards,
David


From: nv-l-bounces AT lists.ca.ibm DOT com [mailto:nv-l-bounces AT lists.ca.ibm DOT com] On Behalf Of Mark Sklenarik
Sent: Monday, July 10, 2006 6:07 PM
To: Tivoli NetView Discussions
Subject: Re: [NV-L] Demandpoll Problems


Hi David,
Are both machines defined correctly in "xnmsnmpconf", specifically the community string?

Did you try a "mib browser" of failing device to make sure NetView is using correct community name?  Select the working device, browser it, then enter the address or name of other device and attempt to browser same mib,  does the browser show the correct community name being used?

Also, did you check the 3550 to ensure that NetView machine is allowed to query snmp on it?  It is a problem I have run into here in the lab with newly deployed devices. My network tech, is telling me that I have to provide a name/address of all machines I want to access the Cisco device, and since I am in a test lab, the number of machines that need access to Cisco devices, gets fairly long.

Did you provide community string with the snmpwalk command, or let command get it from NetView?
Try the snmpwalk command with a -d option and no community string, to see if command gets the correct community string from NetView.
   "snmpwalk -d [3550name] system"  -- check output for correct community string being used.

Regards Mark
 Mark F Sklenarik , CTFL
 IBM SWG Tivoli Solutions ,  Software Quality Engineer

  marksk AT us.lbm DOT com

International Software Testing Qualifications Board (ISTQB)
Certified Tester Foundation Level




"Liu, David" <david.liu AT eds DOT com>
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07/10/2006 11:03 AM
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[NV-L] Demandpoll Problems





 Dear list,

Need your advise and experience on the following problem.

NV714, FP3, Solaris trying to discover Cisco 3550 switch with routing
function (several VLAN configured and using community string index).

The strange thing is that two switches with the same configuration, one
can be discovered and the other not (even I loadhosts it manually, then
demandpoll doesn't work, in the NON-snmp smartset). They are in the same
subnet too (they are in the same room). Command line snmpwalk worked
fine for both.

Can you help? Thank you in advance.

Regards,
David

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