diff --git a/events/event_discovery.go b/events/event_discovery.go
index b3adf69..7bcf046 100644
--- a/events/event_discovery.go
+++ b/events/event_discovery.go
@@ -1 +1,19 @@
 package events
+
+const (
+	DEAFULT         = "http://localhost:8080"
+	DISCOVERY_START = "/_api/collector/event/discovery/status/start"
+)
+
+type DiscoveryStartEvent struct {
+	Message string
+	Zone    int64
+}
+
+func (i DiscoveryStartEvent) GetUrl() string {
+	return DEAFULT + DISCOVERY_START
+}
+
+func NewDiscoveryStartEvent(message string, cidr int64) *DiscoveryStartEvent {
+	return &DiscoveryStartEvent{Message: message, Zone: cidr}
+}