Static ARP cant be updated on a T1 against a segment via API

Products

• VMware NSX

Issue/Introduction

• The API /policy/api/v1/infra/tier-1s/<tier1>/segments shows the below output even with Segments attached to the T1
  {
  "results" : [ ],
  "result_count" : 0,
  "sort_by" : "display_name",
  "sort_ascending" : true
}
• PUT/PATCH API /policy/api/v1/infra/tier-1s/<tier1>/segments/<segment>/static-arp to update static ARP doesn't work as well.

Environment

VMware NSX

Cause

The flexible Segments(Segments that are created under Segments in UI or via API under /policy/api/v1/infra/segments) are not supported with the API policy/api/v1/infra/tier-1s/<tier1>/segments/<segment>/static-arp.

Resolution

The API /policy/api/v1/infra/tier-1s/<tier1>/segments will list only the Segments that created under the T1 with PUT/PATCH API.

So, static-arp can only be updated only on T1s against Segments created under the T1 using the above API. Make sure the Segment that you are trying to update the static-arp for is attached and created under the T1.