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[BUG 2041] Fix RTO calculation when the tx queue is empty

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This commit is contained in:
Natale Patriciello
2015-10-16 10:43:17 -07:00
parent 519f422b72
commit 98dc5acbdf
1 changed files with 8 additions and 5 deletions
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13
src/internet/model/tcp-socket-base.cc
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@@ -2324,13 +2324,16 @@ TcpSocketBase::SendDataPacket (SequenceNumber32 seq, uint32_t maxSize, bool with
header.SetWindowSize (AdvertisedWindowSize ());
AddOptions (header);
if (m_retxEvent.IsExpired () )
if (m_retxEvent.IsExpired ())
{
// RFC 6298, clause 2.5
Time doubledRto = m_rto + m_rto;
m_rto = Min (doubledRto, Time::FromDouble (60, Time::S));
// Schedules retransmit timeout. If this is a retransmission, double the timer
// Schedules retransmit
if (seq != m_highTxMark)
{ // This is a retransmit
// RFC 6298, clause 2.5
Time doubledRto = m_rto + m_rto;
m_rto = Min (doubledRto, Time::FromDouble (60, Time::S));
}
NS_LOG_LOGIC (this << " SendDataPacket Schedule ReTxTimeout at time " <<
Simulator::Now ().GetSeconds () << " to expire at time " <<