diff --git a/src/main/java/com/loafle/overflow/central/module/discovery/service/DiscoveryService.java b/src/main/java/com/loafle/overflow/central/module/discovery/service/DiscoveryService.java
index 48b8d23..794d931 100644
--- a/src/main/java/com/loafle/overflow/central/module/discovery/service/DiscoveryService.java
+++ b/src/main/java/com/loafle/overflow/central/module/discovery/service/DiscoveryService.java
@@ -16,6 +16,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.io.IOException;
+import java.util.Date;
 
 /**
  * Created by snoop on 17. 9. 28.
@@ -86,7 +87,16 @@ public class DiscoveryService {
 	
 			messagePublisher.publishToProbe(probeID, "DiscoveryService.DiscoverService", requesterSessionID, port, discoveryService);
 		}
+
+		@ProbeAPI
+		public void discoveryStart(String requesterSessionID, Date startDate) {
+			messagePublisher.publishToMemberSession(requesterSessionID, "DiscoveryService.discoveryStart", startDate);			
+		}
 	
+		@ProbeAPI
+		public void discoveryStop(String requesterSessionID, Date stopDate) {
+			messagePublisher.publishToMemberSession(requesterSessionID, "DiscoveryService.discoveryStop", stopDate);			
+		}
 	
 		@ProbeAPI
 		public void discoveredZone(String requesterSessionID, Zone zone) {