[quicwg/base-drafts] Justify or reconcile deviation from TCP TLP timeout calculation (#3260)

Praveen Balasubramanian <notifications@github.com> Mon, 18 November 2019 23:56 UTC

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Date: Mon, 18 Nov 2019 15:56:02 -0800
From: Praveen Balasubramanian <notifications@github.com>
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Subject: [quicwg/base-drafts] Justify or reconcile deviation from TCP TLP timeout calculation (#3260)
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QUIC:
PTO = smoothed_rtt + max(4*rttvar, kGranularity) + max_ack_delay

TCP:
   TLP_timeout():
       If SRTT is available:
           PTO = 2 * SRTT
           If FlightSize = 1:
              PTO += WCDelAckT
           Else:
              PTO += 2ms
       Else:
           PTO = 1 sec

       If Now() + PTO > TCP_RTO_expire():
           PTO = TCP_RTO_expire() - Now()

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