diff --git a/gbn/gbn_conn.go b/gbn/gbn_conn.go
index 98b9ff5e..f561e54d 100644
--- a/gbn/gbn_conn.go
+++ b/gbn/gbn_conn.go
@@ -19,7 +19,7 @@ var (
 
 const (
 	DefaultN                = 20
-	defaultHandshakeTimeout = 100 * time.Millisecond
+	defaultHandshakeTimeout = 1000 * time.Millisecond
 	defaultResendTimeout    = 2000 * time.Millisecond
 	finSendTimeout          = 1000 * time.Millisecond
 	defaultResendMultiplier = 5
diff --git a/gbn/queue.go b/gbn/queue.go
index af5a2229..3f1e04a0 100644
--- a/gbn/queue.go
+++ b/gbn/queue.go
@@ -39,7 +39,10 @@ type queue struct {
 	// topMtx is used to guard sequenceTop.
 	topMtx sync.RWMutex
 
-	lastResend       time.Time
+	lastResend time.Time
+
+	// handshakeTimeout defines minimum time we need to wait before
+	// resending the queue again, since the last time we resent it.
 	handshakeTimeout time.Duration
 }