"Tier0/Tier1 service group reduced redundancy" alarms are raised after edge replacement

Products

• VMware NSX

Issue/Introduction

• You see "Tier0/Tier1 service group reduced redundancy" alarms on NSX Manager UI after edge replacement.
  
  
• The target Tier0/Tier1 SR's "mode" is "Stateful A/A".
  

  edge> get logical-router <UUID_#1> high-availability status 
  Service Router
  UUID                  : <UUID_#1>
  state                 : Active
  type                  : TIER0
  mode                  : Stateful A/A
  failover mode         : Preemptive
  rank                  : 0
  service count         : 0
  service score         : 0
  default sub-cluster   : true

• The target Tier0/Tier1 SR's "Peer State" is "unknown".
  

  edge> get logical-router <UUID_#1> service-groups 
  Service-Group   : <UUID_#2>
  Id              : 4
  Local State     : Active
  Peer State      : unknown

Environment

VMware NSX

Cause

Internal objects are not updated properly during edge replacement due to the bug.

Resolution

This issue is resolved in VMware NSX 4.2.0.

Workaround:
Restart local-controller using below command.

edge> restart service local-controller