diff --git a/ospfd/ospf_ism.c b/ospfd/ospf_ism.c
index b251e59..ab91e8d 100644
--- a/ospfd/ospf_ism.c
+++ b/ospfd/ospf_ism.c
@@ -43,6 +43,7 @@
 #include "ospfd/ospf_packet.h"
 #include "ospfd/ospf_flood.h"
 #include "ospfd/ospf_abr.h"
+#include "ospfd/ospf_snmp.h"
 
 /* elect DR and BDR. Refer to RFC2319 section 9.4 */
 static struct ospf_neighbor *
@@ -552,6 +553,20 @@
   oi->state = state;
   oi->state_change++;
 
+#ifdef HAVE_SNMP
+  /* Terminal state or regression */ 
+  if ((state == ISM_DR) || (state == ISM_Backup) || (state == ISM_DROther) ||
+      (state == ISM_PointToPoint) || (state < old_state))
+    {
+      /* ospfVirtIfStateChange */
+      if (oi->type == OSPF_IFTYPE_VIRTUALLINK)
+        ospfTrapVirtIfStateChange (oi);
+      /* ospfIfStateChange */
+      else
+        ospfTrapIfStateChange (oi);
+    }
+#endif
+
   /* Set multicast memberships appropriately for new state. */
   ospf_if_set_multicast(oi);