diff --git a/overlay_packetformats.c b/overlay_packetformats.c
index b143cccf..5737ea9d 100644
--- a/overlay_packetformats.c
+++ b/overlay_packetformats.c
@@ -321,9 +321,6 @@ int overlay_add_selfannouncement(int interface,overlay_buffer *b)
       
   /* Sequence number range.  Based on one tick per milli-second. */
   overlay_update_sequence_number();
-  WHYF("selfannounce interval = %08llx-%08llx",
-       overlay_interfaces[interface].last_tick_ms,
-       now);
   if (ob_append_int(b,overlay_interfaces[interface].last_tick_ms))
     return WHY("ob_append_int() could not add low sequence number to self-announcement");
   if (ob_append_int(b,overlay_sequence_number))
diff --git a/overlay_payload.c b/overlay_payload.c
index d71ef0fb..1a98eb85 100644
--- a/overlay_payload.c
+++ b/overlay_payload.c
@@ -81,8 +81,8 @@ int overlay_frame_package_fmt1(overlay_frame *p,overlay_buffer *b)
   int fail=0;
 
   if (p->nexthop_address_status!=OA_RESOLVED) {
-    WHYF("next hop is NOT resolved for packet to %s",
-	 overlay_render_sid(p->destination));
+    if (0) WHYF("next hop is NOT resolved for packet to %s",
+		overlay_render_sid(p->destination));
     if (overlay_address_is_broadcast(p->destination)) {
       /* Broadcast frames are broadcast rather than unicast to next hop.
 	 Just check if the broadcast frame should be dropped first. */
diff --git a/overlay_route.c b/overlay_route.c
index a712d3e2..d41957d3 100644
--- a/overlay_route.c
+++ b/overlay_route.c
@@ -731,7 +731,7 @@ int overlay_route_node_can_hear_me(unsigned char *who,int sender_interface,
   /* Update reachability metrics for node */
   if (overlay_route_recalc_neighbour_metrics(neh,now)) WHY("overlay_route_recalc_neighbour_metrics() failed");
 
-  overlay_route_dump();
+  if (debug&DEBUG_OVERLAYROUTEMONITOR) overlay_route_dump();
   return 0;
 }
 
@@ -1056,17 +1056,17 @@ int overlay_route_record_link(long long now,unsigned char *to,
 
   /* Don't record routes to ourselves */
   if (overlay_address_is_local(to)) {
-    WHYF("Ignoring self announce ack addressed to me (%s).",
-	overlay_render_sid(to));
+    if (0) WHYF("Ignoring self announce ack addressed to me (%s).",
+		overlay_render_sid(to));
     return 0;
   }
-  else WHYF("Recording link to %s",overlay_render_sid(to));
+  else if (0) WHYF("Recording link to %s",overlay_render_sid(to));
 
   for(i=0;i<SID_SIZE;i++) if (to[i]!=via[i]) break;
   if (i==SID_SIZE)
     {
       /* It's a neighbour observation */
-      WHYF("%s is my neighbour",overlay_render_sid(to));
+      if (0) WHYF("%s is my neighbour",overlay_render_sid(to));
       overlay_route_node_can_hear_me(to,sender_interface,s1,s2,now);
     }
 
@@ -1124,7 +1124,7 @@ int overlay_route_record_link(long long now,unsigned char *to,
 
   overlay_route_recalc_node_metrics(n,now);
   
-  if (1||debug&DEBUG_OVERLAYROUTEMONITOR) overlay_route_dump();
+  if (debug&DEBUG_OVERLAYROUTEMONITOR) overlay_route_dump();
   
   return 0;
 }