--- ./bgpd/rde_decide.c.dist	Wed Jan 10 09:22:24 2007
+++ ./bgpd/rde_decide.c	Wed Jan 10 09:19:08 2007
@@ -17,6 +17,9 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+/* +4-Byte AS:   modifications for 4 Byte AS Number Support - 
+                 Geoff Huston, January 2007 */
+
 #include <sys/types.h>
 #include <sys/queue.h>
 
@@ -144,7 +147,8 @@
 
 	/* 5. MED decision, only comparable between the same neighboring AS */
 	if (rde_decisionflags() & BGPD_FLAG_DECISION_MED_ALWAYS ||
-	    aspath_neighbor(asp1->aspath) == aspath_neighbor(asp2->aspath))
+            /* +4-Byte AS:   add AS size parameter (4 bytes) */
+	    aspath_neighbor(asp1->aspath,4) == aspath_neighbor(asp2->aspath,4))
 		/* lowest value wins */
 		if ((asp2->med - asp1->med) != 0)
 			return (asp2->med - asp1->med);