Add v2 dispersal port reachability check

```
  "operator_id": "feba99a1e3230e2383f5417ded9695f170491eb4bc2e21110d73f7f127e3d835",
  "dispersal_socket": "23.93.87.156:32005",
  "dispersal_online": true,
  "dispersal_status": "node.Dispersal is available",
  "retrieval_socket": "23.93.87.156:32004",
  "retrieval_online": true,
  "retrieval_status": "node.Retrieval is available",
  "v2_dispersal_socket": "",
  "v2_dispersal_online": false,
  "v2_dispersal_status": "v2 dispersal port is not registered"
}
```

```
  "operator_id": "feba99a1e3230e2383f5417ded9695f170491eb4bc2e21110d73f7f127e3d835",
  "dispersal_socket": "23.93.87.156:32005",
  "dispersal_online": true,
  "dispersal_status": "node.Dispersal is available",
  "retrieval_socket": "23.93.87.156:32004",
  "retrieval_online": true,
  "retrieval_status": "node.Retrieval is available",
  "v2_dispersal_socket": "23.93.87.156:32006",
  "v2_dispersal_online": true,
  "v2_dispersal_status": "node.v2.Dispersal is available"
}
```

core/serialization.go

@@ -535,6 +535,14 @@ func (s OperatorSocket) GetV1DispersalSocket() string {
 	return fmt.Sprintf("%s:%s", ip, v1DispersalPort)
 }
 
+func (s OperatorSocket) GetV2DispersalSocket() string {
+	ip, _, _, v2DispersalPort, err := ParseOperatorSocket(string(s))
+	if err != nil || v2DispersalPort == "" {
+		return ""
+	}
+	return fmt.Sprintf("%s:%s", ip, v2DispersalPort)
+}
+
 func (s OperatorSocket) GetRetrievalSocket() string {
 	ip, _, retrievalPort, _, err := ParseOperatorSocket(string(s))
 	if err != nil {

disperser/dataapi/operator_handler.go

@@ -48,27 +48,43 @@ func (oh *OperatorHandler) ProbeOperatorHosts(ctx context.Context, operatorId st
 	operatorSocket := core.OperatorSocket(operatorInfo.Socket)
 	retrievalSocket := operatorSocket.GetRetrievalSocket()
 	retrievalPortOpen := checkIsOperatorPortOpen(retrievalSocket, 3, oh.logger)
-	retrievalOnline, retrievalStatus := false, fmt.Sprintf("port closed or unreachable for %s", retrievalSocket)
+	retrievalOnline, retrievalStatus := false, fmt.Sprintf("port closed or unreachable")
 	if retrievalPortOpen {
 		retrievalOnline, retrievalStatus = checkServiceOnline(ctx, "node.Retrieval", retrievalSocket, 3*time.Second)
 	}
 
-	dispersalSocket := operatorSocket.GetV1DispersalSocket()
-	dispersalPortOpen := checkIsOperatorPortOpen(dispersalSocket, 3, oh.logger)
-	dispersalOnline, dispersalStatus := false, fmt.Sprintf("port closed or unreachable for %s", dispersalSocket)
-	if dispersalPortOpen {
-		dispersalOnline, dispersalStatus = checkServiceOnline(ctx, "node.Dispersal", dispersalSocket, 3*time.Second)
+	v1DispersalSocket := operatorSocket.GetV1DispersalSocket()
+	v1DispersalPortOpen := checkIsOperatorPortOpen(v1DispersalSocket, 3, oh.logger)
+	v1DispersalOnline, v1DispersalStatus := false, fmt.Sprintf("port closed or unreachable")
+	if v1DispersalPortOpen {
+		v1DispersalOnline, v1DispersalStatus = checkServiceOnline(ctx, "node.Dispersal", v1DispersalSocket, 3*time.Second)
+	}
+
+	v2DispersalOnline, v2DispersalStatus := false, ""
+	v2DispersalSocket := operatorSocket.GetV2DispersalSocket()
+	if v2DispersalSocket == "" {
+		v2DispersalStatus = "v2 dispersal port is not registered"
+	} else {
+		v2DispersalPortOpen := checkIsOperatorPortOpen(v2DispersalSocket, 3, oh.logger)
+		if !v2DispersalPortOpen {
+			v2DispersalStatus = fmt.Sprintf("port closed or unreachable")
+		} else {
+			v2DispersalOnline, v2DispersalStatus = checkServiceOnline(ctx, "node.v2.Dispersal", v2DispersalSocket, 3*time.Second)
+		}
 	}
 
 	// Create the metadata regardless of online status
 	portCheckResponse := &OperatorPortCheckResponse{
-		OperatorId:      operatorId,
-		DispersalSocket: dispersalSocket,
-		RetrievalSocket: retrievalSocket,
-		DispersalOnline: dispersalOnline,
-		RetrievalOnline: retrievalOnline,
-		DispersalStatus: dispersalStatus,
-		RetrievalStatus: retrievalStatus,
+		OperatorId:        operatorId,
+		DispersalSocket:   v1DispersalSocket,
+		DispersalStatus:   v1DispersalStatus,
+		DispersalOnline:   v1DispersalOnline,
+		V2DispersalSocket: v2DispersalSocket,
+		V2DispersalOnline: v2DispersalOnline,
+		V2DispersalStatus: v2DispersalStatus,
+		RetrievalSocket:   retrievalSocket,
+		RetrievalOnline:   retrievalOnline,
+		RetrievalStatus:   retrievalStatus,
 	}
 
 	// Log the online status

disperser/dataapi/server.go

@@ -175,13 +175,16 @@ type (
 	}
 
 	OperatorPortCheckResponse struct {
-		OperatorId      string `json:"operator_id"`
-		DispersalSocket string `json:"dispersal_socket"`
-		RetrievalSocket string `json:"retrieval_socket"`
-		DispersalOnline bool   `json:"dispersal_online"`
-		RetrievalOnline bool   `json:"retrieval_online"`
-		DispersalStatus string `json:"dispersal_status"`
-		RetrievalStatus string `json:"retrieval_status"`
+		OperatorId        string `json:"operator_id"`
+		DispersalSocket   string `json:"dispersal_socket"`
+		DispersalOnline   bool   `json:"dispersal_online"`
+		DispersalStatus   string `json:"dispersal_status"`
+		RetrievalSocket   string `json:"retrieval_socket"`
+		RetrievalOnline   bool   `json:"retrieval_online"`
+		RetrievalStatus   string `json:"retrieval_status"`
+		V2DispersalSocket string `json:"v2_dispersal_socket"`
+		V2DispersalOnline bool   `json:"v2_dispersal_online"`
+		V2DispersalStatus string `json:"v2_dispersal_status"`
 	}
 	SemverReportResponse struct {
 		Semver map[string]*semver.SemverMetrics `json:"semver"`