Unable to add ACI 5.2 Controller CA Virtual Network Assurance (VNA) 21.2.x

Products

• CA Virtual Network Assurance
• DX NetOps

Issue/Introduction

When configuring ACI Plugin for VNA 21.2.12 ,discovery is failing with the following error. 

022-07-29 09:00:05,058 WARN  [org.apache.camel.component.vm.VmConsumer] (Camel (ACI Plugin-21.2.12-RELEASE) thread #26 - vm://global/plugin/aci/INVENTORY) Error processing exchange. Exchange[]. Caused by:
 [org.mvel2.PropertyAccessException - [Error: childIps.add( primaryIp ): null]

Environment

DX NetOps VNA Release : 21.2

Resolution

Upgrade to VNA 22.2.3  to support Cisco ACI 5.2 

see https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/virtual-network-assurance/22-2/release-notes/vna-features-enhancements-2223.html

In the new ACI version 5.2, the following path isn’t populated from the API: 

${APIC_HOST_IP}/api/class/fvAEPg.json?rsp-subtree=full&rsp-subtree-class=fvNwEp&rsp-subtree-include=health,fault-count imdata.fvAEPg.children.fvCEp.attributes.ip 

So the IP that was available in previous ACI versions, is no longer accessible in ver 5.2: