Servers connected to a T1 Service Interface are not reachable on network after moving T1 from one edge cluster to another.

Products

• VMware NSX

Issue/Introduction

• The T0 SR connected to the T1 in question is not advertising the service interface subnet to its BGP peer in the physical network:
  • nsx-edge(tier0_vrf_sr[#])> get bgp neighbor <bgp-neighbor-IP> advertised-routes

Environment

VMware NSX

Resolution

• Edit the T1 in question in the NSX UI > Networking > Tier-1 Gateways.
  • Add some text like "test" to the Description field and save.
• If the above step doesn't resolve the issue, perform a rolling reboot of the NSX Manager VMs (one at a time, waiting for the rebooted node to stabilize before moving onto the next, leaving the VIP leader node for last).