Error about SubnettedIPAddress based on IP Address in VNA gateway.log.

Products

• CA Virtual Network Assurance
• DX NetOps

Issue/Introduction

DX NetOps Virtual Network Assurance (VNA) with the Viptela plugin configured.

The following errors are observed in the gateway.log file on the VNA server.

What is the cause, and solution for these errors?

2021-10-04 15:40:59,780 WARN  (Camel (Viptela Plugin-21.2.1-RELEASE) thread #34 - vm://global/plugin/viptela/INVENTORY)  [VIPTELA_PLUGIN] OccurrenceLogger 27  Key: Viptela:SubnettedIpAddress-Parser - Message: Failed to make SubnettedIPAddress based on IP Address: <IP_Address>: java.lang.IllegalArgumentException: Could not parse [<IP_Address>]
...
2021-10-04 15:40:59,781 WARN  (Camel (Viptela Plugin-21.2.1-RELEASE) thread #34 - vm://global/plugin/viptela/INVENTORY)  [VIPTELA_PLUGIN] PeriodicOccurrenceLogger 62  Additional occurrences of messages keyed by: Viptela:SubnettedIpAddress-Parser will be suppressed until the next interval. Enable TRACE for VIPTELA_PLUGIN to see every occurrence

Cause

No subnet mask information is set in the information returned for a given IP Address.

Environment

All supported DX NetOps Virtual Network Assurance (VNA) releases r21.2.4 and older

Resolution

This is being addressed by defect DE516719. A resolution is expected to be included in the r21.2.5 release. That is subject to change and is just an ETA.

The solution will be to bypass the parsing logic code for any IP Address returned without subnet mask details.