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CA5620SamY1731 device pack - Average values calculated x2 in some cases

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Article ID: 237516

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Updated On:

Products

CA Performance Management - Usage and Administration CA Mediation Manager DX NetOps

Issue/Introduction

It appears there may be a small defect with this latest version of the CA5620SamY1731 device pack.  In many cases the value of ethernetoamCfmTwoWayDelayTestResultaverageRoundTripTime is close to double ethernetoamCfmTwoWayDelayTestResultminimumRoundTripTime and ethernetoamCfmTwoWayDelayTestResultmaximumRoundTripTime values.  

We verified that the metrics on the device show the average value about half of what is being reported in PM.

I took a look at the input files (log-to-file and find-to-file) and the CAMM xml, and found that for a given component on a given poll cycle, if there is both a log-to-file entry _and_ a find-to-file entry, then the value of ethernetoamCfmTwoWayDelayTestResultaverageRoundTripTime gets doubled by the device pack.

For example, take a look at this component in the attached files (problem_files_example.tar): network:24.97.244.194:sas:cfm-twoWayDlyTest-2,STRNMEAC71W,24.97.244.194,20.LVXX.000298.PTL.TWCC-3780 

# Log-to-file entry:

$ xmllint --format 24.97.244.194_1639696903287_23053.xml | cat -n | less
<snip/>
    32    <ethernetoam.CfmTwoWayDelayTestResult>
    33      <minimumRoundTripTime>11607</minimumRoundTripTime>
    34      <maximumRoundTripTime>11750</maximumRoundTripTime>
    35      <averageRoundTripTime>11636</averageRoundTripTime> <----------------------------------------------- averageRoundTripTime is 11636
    36      <sumOfSquaresRoundTripTime>190035</sumOfSquaresRoundTripTime>
    37      <responsesReceived>900</responsesReceived>
    38      <packetsSent>900</packetsSent>
    39      <minimumOneWayTime>7084</minimumOneWayTime>
    40      <maximumOneWayTime>7287</maximumOneWayTime>
    41      <averageOneWayTime>7212</averageOneWayTime>
    42      <sumOfSquaresOneWayTime>1597683</sumOfSquaresOneWayTime>
    43      <minimumInboundOneWayTime>4361</minimumInboundOneWayTime>
    44      <maximumInboundOneWayTime>4593</maximumInboundOneWayTime>
    45      <averageInboundOneWayTime>4423</averageInboundOneWayTime>
    46      <inboundSumOfSquaresOneWayTime>1706658</inboundSumOfSquaresOneWayTime>
    47      <outboundJitter>8</outboundJitter>
    48      <inboundJitter>8</inboundJitter>
    49      <roundTripJitter>11</roundTripJitter>
    50      <packetTimeouts>0</packetTimeouts>
    51      <packetsLost>0</packetsLost>
    52      <rttOFSumSquares>0</rttOFSumSquares>
    53      <ttOFSumSquares>0</ttOFSumSquares>
    54      <inTtOFSumSqrs>0</inTtOFSumSqrs>
    55      <test>network:24.97.244.194:sas:cfm-twoWayDlyTest-2</test>
    56      <scheduledTime>1639696482000</scheduledTime>
    57      <neTestRunIndex>308119</neTestRunIndex>
    58      <timeCaptured>1639696903306</timeCaptured> <----------------------------------------------- same poll interval
    59      <objectFullName>N/A</objectFullName>
    60    </ethernetoam.CfmTwoWayDelayTestResult>
<snip/>
$

# Find-to-file entry:

$ xmllint --format soapResponse-ethernetoam.CfmTwoWayDelayTestResult.xml | cat -n | less
<snip/>
  5013    <ethernetoam.CfmTwoWayDelayTestResult>
  5014      <minimumRoundTripTime>11607</minimumRoundTripTime>
  5015      <maximumRoundTripTime>11750</maximumRoundTripTime>
  5016      <averageRoundTripTime>11636</averageRoundTripTime> <----------------------------------------------- averageRoundTripTime is 11636
  5017      <sumOfSquaresRoundTripTime>190035</sumOfSquaresRoundTripTime>
  5018      <responsesReceived>900</responsesReceived>
  5019      <packetsSent>900</packetsSent>
  5020      <minimumOneWayTime>7084</minimumOneWayTime>
  5021      <maximumOneWayTime>7287</maximumOneWayTime>
  5022      <averageOneWayTime>7212</averageOneWayTime>
  5023      <sumOfSquaresOneWayTime>1597683</sumOfSquaresOneWayTime>
  5024      <minimumInboundOneWayTime>4361</minimumInboundOneWayTime>
  5025      <maximumInboundOneWayTime>4593</maximumInboundOneWayTime>
  5026      <averageInboundOneWayTime>4423</averageInboundOneWayTime>
  5027      <inboundSumOfSquaresOneWayTime>1706658</inboundSumOfSquaresOneWayTime>
  5028      <outboundJitter>8</outboundJitter>
  5029      <inboundJitter>8</inboundJitter>
  5030      <roundTripJitter>11</roundTripJitter>
  5031      <packetTimeouts>0</packetTimeouts>
  5032      <packetsLost>0</packetsLost>
  5033      <rttOFSumSquares>0</rttOFSumSquares>
  5034      <ttOFSumSquares>0</ttOFSumSquares>
  5035      <inTtOFSumSqrs>0</inTtOFSumSqrs>
  5036      <test>network:24.97.244.194:sas:cfm-twoWayDlyTest-2</test>
  5037      <scheduledTime>1639696482000</scheduledTime>
  5038      <neTestRunIndex>308119</neTestRunIndex>
  5039      <timeCaptured>1639696903287</timeCaptured> <----------------------------------------------- same poll interval
  5040      <objectFullName>@[email protected]@[email protected]@226357538</objectFullName>
  5041      <children-Set/>
  5042    </ethernetoam.CfmTwoWayDelayTestResult>
<snip/>
$

# Resulting CAMM XML from the above two output files:

$ vi timPollResult-16_12_2021-18_30_03.xml
<snip/>
 579   <group type="Elements">
 580     <TIM-Device>STRNMEAC71W</TIM-Device>
 581     <TIM-deviceIP>24.97.244.194</TIM-deviceIP>
 582     <TIM-Branch>alcatelCFMTwoWayDelay</TIM-Branch>
 583     <TIM-BranchDescr>20.LVXX.000298.PTL.TWCC-3780</TIM-BranchDescr>
 584     <TIM-utc>1639696482</TIM-utc> 
 585     <TIM-Delta>900</TIM-Delta>
 586     <DATA-ethernetoamCfmTwoWayDelayTestResultminimumRoundTripTime>11607</DATA-ethernetoamCfmTwoWayDelayTestResultminimumRoundTripTime>
 587     <DATA-ethernetoamCfmTwoWayDelayTestResultmaximumRoundTripTime>11750</DATA-ethernetoamCfmTwoWayDelayTestResultmaximumRoundTripTime>
 588     <DATA-ethernetoamCfmTwoWayDelayTestResultaverageRoundTripTime>23272</DATA-ethernetoamCfmTwoWayDelayTestResultaverageRoundTripTime> <----------------------------------------------- this is 2 x averageRoundTripTime (11636 x 2 = 23272)
 589     <DATA-ethernetoamCfmTwoWayDelayTestResultsumOfSquaresRoundTripTime>380070</DATA-ethernetoamCfmTwoWayDelayTestResultsumOfSquaresRoundTripTime>
 590     <DATA-ethernetoamCfmTwoWayDelayTestResultresponsesReceived>1800</DATA-ethernetoamCfmTwoWayDelayTestResultresponsesReceived>
 591     <DATA-ethernetoamCfmTwoWayDelayTestResultpacketsSent>1800</DATA-ethernetoamCfmTwoWayDelayTestResultpacketsSent>
 592     <DATA-ethernetoamCfmTwoWayDelayTestResultminimumOneWayTime>7084</DATA-ethernetoamCfmTwoWayDelayTestResultminimumOneWayTime>
 593     <DATA-ethernetoamCfmTwoWayDelayTestResultmaximumOneWayTime>7287</DATA-ethernetoamCfmTwoWayDelayTestResultmaximumOneWayTime>
 594     <DATA-ethernetoamCfmTwoWayDelayTestResultaverageOneWayTime>14424</DATA-ethernetoamCfmTwoWayDelayTestResultaverageOneWayTime>
 595     <DATA-ethernetoamCfmTwoWayDelayTestResultsumOfSquaresOneWayTime>3195366</DATA-ethernetoamCfmTwoWayDelayTestResultsumOfSquaresOneWayTime>
 596     <DATA-ethernetoamCfmTwoWayDelayTestResultminimumInboundOneWayTime>4361</DATA-ethernetoamCfmTwoWayDelayTestResultminimumInboundOneWayTime>
 597     <DATA-ethernetoamCfmTwoWayDelayTestResultmaximumInboundOneWayTime>4593</DATA-ethernetoamCfmTwoWayDelayTestResultmaximumInboundOneWayTime>
 598     <DATA-ethernetoamCfmTwoWayDelayTestResultaverageInboundOneWayTime>8846</DATA-ethernetoamCfmTwoWayDelayTestResultaverageInboundOneWayTime>
 599     <DATA-ethernetoamCfmTwoWayDelayTestResultinboundSumOfSquaresOneWayTime>3413316</DATA-ethernetoamCfmTwoWayDelayTestResultinboundSumOfSquaresOneWayTime>
 600     <DATA-ethernetoamCfmTwoWayDelayTestResultoutboundJitter>16</DATA-ethernetoamCfmTwoWayDelayTestResultoutboundJitter>
 601     <DATA-ethernetoamCfmTwoWayDelayTestResultinboundJitter>16</DATA-ethernetoamCfmTwoWayDelayTestResultinboundJitter>
 602     <DATA-ethernetoamCfmTwoWayDelayTestResultroundTripJitter>22</DATA-ethernetoamCfmTwoWayDelayTestResultroundTripJitter>
 603     <DATA-ethernetoamCfmTwoWayDelayTestResultpacketTimeouts>0</DATA-ethernetoamCfmTwoWayDelayTestResultpacketTimeouts>
 604     <DATA-ethernetoamCfmTwoWayDelayTestResultpacketsLost>0</DATA-ethernetoamCfmTwoWayDelayTestResultpacketsLost>
 605     <DATA-ethernetoamCfmTwoWayDelayTestResultrttOFSumSquares>0</DATA-ethernetoamCfmTwoWayDelayTestResultrttOFSumSquares>
 606     <DATA-ethernetoamCfmTwoWayDelayTestResultttOFSumSquares>0</DATA-ethernetoamCfmTwoWayDelayTestResultttOFSumSquares>
 607     <DATA-ethernetoamCfmTwoWayDelayTestResultinTtOFSumSqrs>0</DATA-ethernetoamCfmTwoWayDelayTestResultinTtOFSumSqrs>
 608     <DATA-ethernetoamCfmTwoWayDelayTestResulttest>0</DATA-ethernetoamCfmTwoWayDelayTestResulttest>
 609     <DATA-ethernetoamCfmTwoWayDelayTestResultscheduledTime>1639696482000</DATA-ethernetoamCfmTwoWayDelayTestResultscheduledTime>
 610     <DATA-ethernetoamCfmTwoWayDelayTestResultneTestRunIndex>308119</DATA-ethernetoamCfmTwoWayDelayTestResultneTestRunIndex>
 611     <DATA-ethernetoamCfmTwoWayDelayTestResulttimeCaptured>1639696903306</DATA-ethernetoamCfmTwoWayDelayTestResulttimeCaptured>
 612     <DATA-ethernetoamCfmTwoWayDelayTestResultobjectFullName>0</DATA-ethernetoamCfmTwoWayDelayTestResultobjectFullName>
 613     <DATA-Availability>100</DATA-Availability>
 614   </group>
<snip/>

Cause

DE526167

Environment

Release : 21.2

Component : CA MEDIATION MANAGER

Resolution

DE526167 - Fixed in 21.2.9. Fix provided by engineering