From f1f400bcee04d92f76295f74f4a9ab344ece5725 Mon Sep 17 00:00:00 2001
From: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
Date: Wed, 19 Dec 2007 13:24:30 +0100
Subject: [PATCH] it is possible to receive packets which are not tagged.
 ignore them rather than crash.

---
 src/contrib/delay-jitter-estimation.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/contrib/delay-jitter-estimation.cc b/src/contrib/delay-jitter-estimation.cc
index 3904b16cc..207855ee1 100644
--- a/src/contrib/delay-jitter-estimation.cc
+++ b/src/contrib/delay-jitter-estimation.cc
@@ -75,7 +75,10 @@ DelayJitterEstimation::RecordRx (Ptr<const Packet> packet)
   TimestampTag tag;
   bool found;
   found = packet->PeekTag (tag);
-  NS_ASSERT (found);
+  if (!found)
+    {
+      return;
+    }
   tag.GetTxTime ();
 
   Time delta = (Simulator::Now () - m_previousRx) - (tag.GetTxTime () - m_previousRxTx);