No performance data for the Viptela plugin

Products

• Network Observability
• CA Performance Management
• Virtual Network Assurance

Issue/Introduction

Since installing or upgrading to VNA/SDX 23.3.6, no data is seen for the Viptela, Versa, or ACI plug-ins

Environment

Virtual Network Assurance 23.3.6

Cause

DEFECT: 

A change was made to hardcode the delta time to 2 minutes because that is what the controller defaults to for its sample rate.

In 30 minutes poll rate VNA should be asking for 30 minutes worth of data, but in the log below VNA is asking for 2 minutes only.

/CA/VNA/wildfly/standalone/log/oc.log file:

2024-02-22 20:00:01,092 INFO  (EE-ManagedThreadFactory-default-Thread-62293)  [OC_SCRIPTING] Logger$info$1 -1  Fetching URL [tunnelstats]: https://<IP Address>:8443/dataservice/data/device/statistics/approutestatsstatistics?count=10000&startDate=2024-02-22T19:58:00&endDate=2024-02-22T20:00:00

Resolution

This issue has been fixed in DX Netops 23.3.7 and later:

Symptom: For the Viptela, Versa, and ACI plug-ins, the PERFORMANCE_DELTA_TIME parameter is set, but is hard-coded internal to the plug-in. You cannot configure the value for this parameter, and the hard-coded value is not always valid for these plug-ins.
Resolution: With this fix, you can now configure the PERFORMANCE_DELTA_TIME parameter for the Viptela, Versa, and ACI plug-ins by way of the plug-in configuration.
(23.3.7, DE591020)

Additional Information

Workaround:

Replace the following line:

• <StaticVariable id="PERFORMANCE_DELTA_TIME">120</StaticVariable>

With: 

• <StaticVariable id="PERFORMANCE_DELTA_TIME">1800</StaticVariable>

In the following files on VNA:

• <VNA install directory>/plugins/Viptela Plugin/opencollector/repository/deviceConfig/Viptela-Performance.xml
• <VNA install directory>/collector/<Viptela Engine ID>/repository/deviceConfig/Viptela-Performance.xml

 

Stop/start the plugin engine to put the change in place.