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(-)a/src/internet/model/tcp-newreno.cc (-1 / +2 lines)
 Lines 128-135    Link Here 
128 
      m_cWnd -= seq - m_txBuffer.HeadSequence ();
 128 
      m_cWnd -= seq - m_txBuffer.HeadSequence ();
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      m_cWnd += m_segmentSize;  // increase cwnd
 129 
      m_cWnd += m_segmentSize;  // increase cwnd
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      NS_LOG_INFO ("Partial ACK in fast recovery: cwnd set to " << m_cWnd);
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      NS_LOG_INFO ("Partial ACK in fast recovery: cwnd set to " << m_cWnd);
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      m_txBuffer.DiscardUpTo(seq); // Bug 1850:  retransmit before NewAck()
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      DoRetransmit (); // Assume the next seq is lost. Retransmit lost packet
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      TcpSocketBase::NewAck (seq); // update m_nextTxSequence and send new data if allowed by window
 133 
      TcpSocketBase::NewAck (seq); // update m_nextTxSequence and send new data if allowed by window
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      DoRetransmit (); // Assume the next seq is lost. Retransmit lost packet
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      return;
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      return;
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    }
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    }
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  else if (m_inFastRec && seq >= m_recover)
 136 
  else if (m_inFastRec && seq >= m_recover)

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