Index: source/ariba/overlay/modules/chord/Chord.cpp
===================================================================
--- source/ariba/overlay/modules/chord/Chord.cpp	(revision 3690)
+++ source/ariba/overlay/modules/chord/Chord.cpp	(revision 3693)
@@ -70,5 +70,5 @@
 }
 
-// helper: sets up a link using the base overlay
+/// helper: sets up a link using the base overlay
 LinkID Chord::setup(const EndpointDescriptor& endp) {
 
@@ -78,9 +78,11 @@
 }
 
-// helper: sends a message using the "base overlay"
+/// helper: sends a message using the "base overlay"
 seqnum_t Chord::send(Message* msg, const LinkID& link) {
+	if (link.isUnspecified()) return 0;
 	return baseoverlay.sendMessage(msg, link);
 }
 
+/// sends a discovery message
 void Chord::send_discovery_to(const NodeID& destination, int ttl) {
 	logging_debug("Initiating discovery of " << destination.toString() );
@@ -192,6 +194,4 @@
 	M* m = msg.getMessage()->convert<ChordMessage> ();
 	if (m == NULL) return;
-
-	logging_debug("onMessage: type=" << (int)m->getType() );
 
 	// handle messages