diff --git a/library/NS_Provider_FR.ttcn b/library/NS_Provider_FR.ttcn
index 851e6c4..afa27d9 100644
--- a/library/NS_Provider_FR.ttcn
+++ b/library/NS_Provider_FR.ttcn
@@ -22,6 +22,9 @@
 type component NS_Provider_FR_CT extends NS_Provider_CT, FR_Client_CT {
 	/* component reference to Frame Relay emulation */
 	var FR_Emulation_CT vc_FREMU;
+
+	var boolean link_available := false;
+	var boolean pvc_active := false;
 };
 
 function main(NSConfiguration config) runs on NS_Provider_FR_CT system af_packet {
@@ -50,8 +53,28 @@
 			NSE.send(dec_PDU_NS(rx_fr.payload));
 			}
 
+		[] FR.receive(FRemu_Event:{link_status:=FR_LINK_STS_AVAILABLE}) -> value rx_frevt {
+			if (link_available == false and pvc_active == true) {
+				NSE.send(NS_Provider_Evt:{link_status := NS_PROV_LINK_STATUS_UP});
+			}
+			link_available := true;
+			}
+		[] FR.receive(FRemu_Event:{link_status:=FR_LINK_STS_UNAVAILABLE}) -> value rx_frevt {
+			link_available := false;
+			NSE.send(NS_Provider_Evt:{link_status := NS_PROV_LINK_STATUS_DOWN});
+			}
+		[] FR.receive(tr_FRemu_PvcStatusAct(config.provider.fr.dlci, true)) -> value rx_frevt {
+			if (pvc_active == false and link_available == true) {
+				NSE.send(NS_Provider_Evt:{link_status := NS_PROV_LINK_STATUS_UP});
+			}
+			pvc_active := true;
+			}
+		[] FR.receive(tr_FRemu_PvcStatusAct(config.provider.fr.dlci, false)) -> value rx_frevt {
+			pvc_active := false;
+			NSE.send(NS_Provider_Evt:{link_status := NS_PROV_LINK_STATUS_DOWN});
+			}
 		[] FR.receive(FRemu_Event:?) -> value rx_frevt {
-			/* TODO: dispatch to user */
+			log("Unhandled FRemu_event: ", rx_frevt);
 			}
 		[] NSE.receive(PDU_NS:?) -> value rx_pdu {
 			FR.send(ts_FR(config.provider.fr.dlci, enc_PDU_NS(rx_pdu), true));