Index: ipv4/tcp_westwood.c
===================================================================
--- ipv4.orig/tcp_westwood.c	2006-06-06 18:14:50.000000000 +0200
+++ ipv4/tcp_westwood.c	2006-06-06 18:16:49.000000000 +0200
@@ -65,8 +65,17 @@
 
 static inline void westwood_filter(struct westwood *w, u32 delta)
 {
-	w->bw_ns_est = westwood_do_filter(w->bw_ns_est, w->bk / delta);
-	w->bw_est = westwood_do_filter(w->bw_est, w->bw_ns_est);
+	/*
+	 * If the filter is empty fill it with the first sample of bandwidth
+	 */
+	if (w->bw_ns_est==0 && w->bw_est==0)
+	{
+		w->bw_ns_est = w->bk / delta;
+		w->bw_est = w->bw_ns_est ;
+	} else {
+		w->bw_ns_est = westwood_do_filter(w->bw_ns_est, w->bk / delta);
+		w->bw_est = westwood_do_filter(w->bw_est, w->bw_ns_est);
+	}
 }
 
 /*