From 6ebc6866616d6b95ccdc15068fc40130e58077a8 Mon Sep 17 00:00:00 2001
From: Keith Winstein <keithw@mit.edu>
Date: Wed, 10 Aug 2011 02:45:10 -0400
Subject: [PATCH] Cap large RTT values

---
 network.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/network.cpp b/network.cpp
index b11b489..b1b4406 100644
--- a/network.cpp
+++ b/network.cpp
@@ -208,7 +208,11 @@ string Connection::recv( void )
   if ( p.timestamp_reply != uint64_t(-1) ) {
     uint64_t now = timestamp();
     assert( now >= p.timestamp_reply );
-    const double R = now - p.timestamp_reply;
+    double R = now - p.timestamp_reply;
+
+    if ( R > 5000 ) { /* cap large values, e.g. server was Ctrl-Zed */
+      R = 5000;
+    }
 
     if ( !RTT_hit ) { /* first measurement */
       SRTT = R;