diff --git a/providers/lldpcommon/src/main/java/org/onosproject/provider/lldpcommon/LinkDiscovery.java b/providers/lldpcommon/src/main/java/org/onosproject/provider/lldpcommon/LinkDiscovery.java
index 578e1c1..630b30d 100644
--- a/providers/lldpcommon/src/main/java/org/onosproject/provider/lldpcommon/LinkDiscovery.java
+++ b/providers/lldpcommon/src/main/java/org/onosproject/provider/lldpcommon/LinkDiscovery.java
@@ -260,7 +260,7 @@
             Optional<Device> srcDevice = findSourceDeviceByChassisId(deviceService, srcChassisId);
 
             if (!srcDevice.isPresent()) {
-                log.warn("source device not found. srcChassisId value: {}", srcChassisId);
+                log.debug("source device not found. srcChassisId value: {}", srcChassisId);
                 return false;
             }
             Optional<Port> sourcePort = findSourcePortByName(
@@ -269,7 +269,7 @@
                     srcDevice.get());
 
             if (!sourcePort.isPresent()) {
-                log.warn("source port not found. sourcePort value: {}", sourcePort);
+                log.debug("source port not found. sourcePort value: {}", sourcePort);
                 return false;
             }