VMware NSX
VMware NSX-T Data Center 3.x
The configuration uses API calls to gather data.
API calls have a default limit of 1,000 results.
When there is more than 1,000 IP Pools, it is unable to present all entries.
This issue is resolved in VMware NSX 3.2.4
This issue is resolved in VMware NSX 4.2.0
Workaround:
The IP Pools are sorted in an ascending alphabetical order.
When configuring a host, to ensure you see the desired IP Pool, prior to install, rename the pool, so it is starts with a letter which will appear in the first 1,000 entries.
For example, here you change the pool name from "Pool_TEP" to "A_Pool_TEP", so that the IP Pool will now be higher on the presented list.