diff --git a/adapters/simulated_onu/adaptercore/device_handler.go b/adapters/simulated_onu/adaptercore/device_handler.go
index 96cb3d8..61b1c0b 100644
--- a/adapters/simulated_onu/adaptercore/device_handler.go
+++ b/adapters/simulated_onu/adaptercore/device_handler.go
@@ -256,3 +256,15 @@
 
 	log.Debugw("DeleteDevice-end", log.Fields{"deviceId": device.Id})
 }
+
+func (dh *DeviceHandler) UpdateFlowsBulk(device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups) {
+	log.Debugw("UpdateFlowsBulk", log.Fields{"deviceId": device.Id, "flows": flows, "groups": groups})
+	// For now we do nothing with it
+	return
+}
+
+func (dh *DeviceHandler) UpdateFlowsIncremental(device *voltha.Device, flowChanges *of.FlowChanges, groupChanges *of.FlowGroupChanges) {
+	log.Debugw("UpdateFlowsIncremental", log.Fields{"deviceId": device.Id, "flowChanges": flowChanges, "groupChanges": groupChanges})
+	// For now we do nothing with it
+	return
+}
diff --git a/adapters/simulated_onu/adaptercore/simulated_onu.go b/adapters/simulated_onu/adaptercore/simulated_onu.go
index e9fa82e..d8d4127 100644
--- a/adapters/simulated_onu/adaptercore/simulated_onu.go
+++ b/adapters/simulated_onu/adaptercore/simulated_onu.go
@@ -208,11 +208,29 @@
 }
 
 func (so *SimulatedONU) Update_flows_bulk(device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups) error {
-	return errors.New("UnImplemented")
+	if device == nil {
+		log.Warn("device-is-nil")
+		return errors.New("nil-device")
+	}
+	log.Debugw("bulk-flow-updates", log.Fields{"deviceId": device.Id, "flows": flows, "groups": groups})
+	var handler *DeviceHandler
+	if handler = so.getDeviceHandler(device.Id); handler != nil {
+		go handler.UpdateFlowsBulk(device, flows, groups)
+	}
+	return nil
 }
 
-func (so *SimulatedONU) Update_flows_incrementally(device *voltha.Device, flows *openflow_13.FlowChanges, groups *openflow_13.FlowGroupChanges) error {
-	return errors.New("UnImplemented")
+func (so *SimulatedONU) Update_flows_incrementally(device *voltha.Device, flowChanges *openflow_13.FlowChanges, groupChanges *openflow_13.FlowGroupChanges) error {
+	if device == nil {
+		log.Warn("device-is-nil")
+		return errors.New("nil-device")
+	}
+	log.Debugw("incremental-flow-update", log.Fields{"deviceId": device.Id, "flowChanges": flowChanges, "groupChanges": groupChanges})
+	var handler *DeviceHandler
+	if handler = so.getDeviceHandler(device.Id); handler != nil {
+		go handler.UpdateFlowsIncremental(device, flowChanges, groupChanges)
+	}
+	return nil
 }
 
 func (so *SimulatedONU) Update_pm_config(device *voltha.Device, pm_configs *voltha.PmConfigs) error {