From e82c68a1ae991afd72cc6ce00a0023878e440c82 Mon Sep 17 00:00:00 2001
From: Vivek Jain <jain.vivek.anand@gmail.com>
Date: Fri, 4 May 2018 11:17:31 +0200
Subject: [PATCH] tcp: reset cwnd to 1 after, and not before, the notification
 to a CA

---
 src/internet/model/tcp-socket-base.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/internet/model/tcp-socket-base.cc b/src/internet/model/tcp-socket-base.cc
index a148278d1..f845f2c56 100644
--- a/src/internet/model/tcp-socket-base.cc
+++ b/src/internet/model/tcp-socket-base.cc
@@ -3532,11 +3532,11 @@ TcpSocketBase::ReTxTimeout ()
     }
 
   // Cwnd set to 1 MSS
-  m_tcb->m_cWnd = m_tcb->m_segmentSize;
-  m_tcb->m_cWndInfl = m_tcb->m_cWnd;
   m_congestionControl->CwndEvent (m_tcb, TcpSocketState::CA_EVENT_LOSS);
   m_congestionControl->CongestionStateSet (m_tcb, TcpSocketState::CA_LOSS);
   m_tcb->m_congState = TcpSocketState::CA_LOSS;
+  m_tcb->m_cWnd = m_tcb->m_segmentSize;
+  m_tcb->m_cWndInfl = m_tcb->m_cWnd;
 
   m_pacingTimer.Cancel ();