diff --git a/util/checktrace.sh b/util/checktrace.sh
new file mode 100755
index 000000000..497bc0fef
--- /dev/null
+++ b/util/checktrace.sh
@@ -0,0 +1,38 @@
+# Copyright (c) 2005 The Regents of The University of Michigan
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: Ali Saidi
+
+for trace in */ethertrace
+do
+    bad=`tethereal -r $trace -q  -z "io,stat,100,tcp.analysis.retransmission||tcp.analysis.fast_retransmission||tcp.analysis.out_of_order||tcp.analysis.lost_segment||tcp.analysis.ack_lost_segment||tcp.analysis.window_full||tcp.analysis.duplicate_ack||tcp.analysis.duplicate_ack_num||tcp.analysis.duplicate_ack_frame"  | grep 000.000 | awk '{print $2}'`
+    name=`dirname $trace`
+
+    if [ "$bad" != "0" ] 
+    then
+       echo "Run $name had problems."
+    fi
+done