The PFTK formula gives the steady state throughput of a bulk transfer TCP flow as a function of loss rate and RTT:

\[B(p,RTT) = \dfrac{MSS}{RTT\sqrt{\frac{2bp}{3}+T_0\min(1,3\sqrt{\frac{3bp}{8})p(1+32p^2)}}}=\dfrac{MSS}{RTTf(p)}\]

where \(b\) is the number of packets that are acknowledged by a received ACK and \(T_0\) is the initial value of the timeout.


Bibliographic data

   title = "Modeling and Quantifying the Impact of P2P File Sharing Traffic on Traditional Internet Traffic",
   author = "YaNing Liu and HongBo Wang and Yu Lin and ShiDuan Cheng",
   howpublished = "AINA",
   booktitle = "Proc. 22nd International Conference on Advanced Information Networking and Applications - Workshops",
   pages = "1428--1433",
   year = "2008",