Some of the overlay segments are showing the connectivity and multicast routing field as "NotSet" where as in edit mode its green/enabled

Products

• VMware NSX-T Data Center

Issue/Introduction

Problematic Segment shows the connectivity and multicast routing field as "NotSet" from read mode.

Whereas from edit mode, if we click on edit could see its green/enabled

The segment is functional and connected workload VM's will not have any issues.

If you run the Segment API call output the advanced_config part would be missing in problematic segment, if compared to any working segment.

GET https://<nsx-manager>/policy/api/v1/infra/segments/<segment>

  "advanced_config": {
        "address_pool_paths": [],
        "hybrid": false,
        "multicast": true,
        "inter_router": false,
        "local_egress": false,
        "urpf_mode": "STRICT",
        "connectivity": "ON"
    }

Environment

VMware NSX-T Data Center

Cause

Known issue below version NSX-T version 3.2.0.

Resolution

Fix in 3.2.0 onwards

Workaround: Edit the segment from UI with just name update, the multicast and connectivity will show the correct status.