NSX-T UI / API doesn't show information about IP pool allocations.

Products

• VMware NSX Networking

Issue/Introduction

- You have deployed VMware NSX-T Data Center, or VMware NSX. 
- You have configured "IP Address Pools".
- In the UI, "Allocated IPs" for the IP pool reads "0", even though IP addresses from the IP pool have been allocated. 
- ip-allocations API (/policy/api/v1/infra/ip-pools/{ip-pool-id}/ip-allocations) shows 0 allocations.

Environment

VMware NSX-T Data Center

Resolution

To review IP allocations in NSX UI:
1. Allow "User Interface" mode toggle in the UI (System -> General Settings -> User Interface)
2. Set the UI to "Manager"
3. Browse to Networking -> IP Address Pools
4. Click on "Allocations" to review consumed and allocated IP addresses.

At this moment, it is not possible to review IP allocations using "/policy/api/v1/infra/ip-pools/{ip-pool-id}/ip-allocations" API. This is a known issue, which will be fixed in the future.