Post NSX-T 3.0.3 to 3.1.3 upgrade, newly created Tier 1 Gateway not forwarding routing to Tier 0 Gateway

Products

• VMware NSX

Issue/Introduction

• Recently upgraded from NSX-T 3.0.3 to 3.1.3.
• Have existing Tier 0 and Tier 1 Gateways (GW).
• Newly created Tier 1 GW linked to Tier 0 GW, do not advertise routing to the Tier 0 GW.
• nsxapi.log file shows the following error:

2022-01-13T07:45:03.584Z ERROR ActivityWorkerPool-1-5 LRBasePublishActivity 23301 ROUTING [nsx@6876 comp="nsx-manager" errorCode="MP210" level="ERROR" subcomp="manager"] Publishing for logical router LogicalRouter/########-####-####-####-########7a6d failed. Details: {"moduleName":"common-services","errorCode":100} Trace String java.lang.NullPointerException
        at com.vmware.nsx.management.edge.lrouter.ports.service.LRBaseFeaturePublisher.prePublish(LRBaseFeaturePublisher.java:202)
        at com.vmware.nsx.management.edge.lrouter.ports.service.LRBaseFeaturePublisher.prePublish(LRBaseFeaturePublisher.java:103)
        at com.vmware.nsx.management.edge.publish.LRBasePublishActivity.phasePrePublish_aroundBody0(LRBasePublishActivity.java:461)
        at com.vmware.nsx.management.edge.publish.LRBasePublishActivity$AjcClosure1.run(LRBasePublishActivity.java:1)
       at org.aspectj.runtime.reflect.JoinPointImpl.proceed(JoinPointImpl.java:149)
...

Environment

VMware NSX-T Data Center

Cause

The NSX-T database has an incorrect entry for the logical router port type, it is set to NULL, whereas it should be MULTICAST_TRANSIT_PORT.

Resolution

This issue is resolved in NSX-T 3.2.1 available at Broadcom Downloads.

Workaround:
If you believe you have encountered this issue, please open a support request with Broadcom Support and please reference this KB.