Draft: Request health checks for peers

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

goKMS/gnmiHandlers/kms/peerHandler.go

@@ -120,6 +120,8 @@ func (yh *PeerHandler) updateOrCreatePeerTable(kms *kms.KMS) ([]*gnmi.Notificati
 			confTempPeerInformation.OpStatus = gnmitargetygot.Temp_OpStatus_ESTABLISHED
 		case peers.KmsPeerPending:
 			confTempPeerInformation.OpStatus = gnmitargetygot.Temp_OpStatus_PENDING
+		case peers.KmsPeerDown:
+			confTempPeerInformation.OpStatus = gnmitargetygot.Temp_OpStatus_DOWN
 		default:
 			confTempPeerInformation.OpStatus = gnmitargetygot.Temp_OpStatus_ERROR
 		}