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QoS component item ID in Performance Management data exports keep changing

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Article ID: 189652

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Updated On:

Products

CA Infrastructure Management CA Performance Management - Usage and Administration DX NetOps

Issue/Introduction

Exporting QoS data from Performance Management duplicate items and constantly changing ItemID values are present.

Also many of the item names have meaningless names such as:

  • Name=cbQoS Interface UnknowncbInterfaceNameIndex-General_Computing-Video-Ports-IN
  • Name=cbQoS Interface UnknowncbInterfaceNameIndex-General_Computing-VLAN-QoS-IN

Cause

Incomplete data in device MIB OIDs.

This attribute is read from the MIB data to align the QoS Policy to an Interface.

  • cbQosServicePolicyIfIndexValue 1.3.6.1.4.1.9.9.166.1.1.1.1.4

Here is a sample from the discovery logging for a problematic QoS item:

  • SnmpResponseVariable [oid=1.3.6.1.4.1.9.9.166.1.1.1.1.4, type=INTEGER, value={158,285,0,0,0,0,0,0,0,0,0,0}, isDelta=false, isList=true, error=SUCCESS, isDynamicIndex=false, indexList=[2528, 4560, 938063732, 946051204, 1596288068, 2007019540, 2015009188, 2275462948, 2275462996, 2401614260, 3093483828, 4175035188]]

Taking an index from the devices polling configuration as a sample, we'll use 2275462948.

If we look at the value for index 2275462948 we see it's 0. This shows us that it has no interface assigned.

Environment

Release : 3.7

Component : IM Reporting / Admin / Configuration

Resolution

We need the SNMP agent to tell us what the correct interface that aligns to a given classmap. Without that we see the issue observed here.

Consult the device administrator and/or vendor to determine a cause and solution.