What is TCP Friendly?
Forward:
What is TCP Friendly?
TFRC is about congestion control mechanism for unicast flows working in a best effort Internet atmosphere, to make suite application for telephony or streaming media, without significantly of delay, and butter than current TCP which has a high congestion of bandwidth. (ITEF, 2003)
It is about working on congestion control algorithms for non-TCP based applications, which is focusing on those congestion control schemes that use the "TCP-friendly" equation. All data that communicate with application (large or small ) has to achieve controlled congestion. (Mahdavi & Floyd, 1999)
This research is about problem of congestion control in a general context, seeking to understand why congestion is a bad thing. How can congestion reflect bad performance. (Kurose & Ross, 2007, p269).
There many research that support TCP friendly principles, such as Sisalem & Schulzrinne, they stated, that LDA (The Loss-Delay Based Adjustment Algorithm) sender based adaptation scheme. It relies on the Real Time Transport Protocol, they enhanced the RTP to estimate the blockage bandwidth. Based on these information, the sender increases or decreases its transmission rate. In summary they work on QoS service to optimized the TCP. (Sisalem & Schulzrinne, n. d.)
Liu, Vojnovic, and Gunawardena, they have stated about 4CP project, 4CP is a congestion control protocol intended to provide service separation of normal and low precedence traffic (TCP and 4CP in that order). The reference service differentiation is different than the ordinary strict low priority emulation. They aims with 4CP to provide per-flow normal send rate assurance to normal traffic, at any time accommodate when bottleneck is detected. or else, if the it was a huge data in connection, it compromises the priority with a normal numbers. (Liu, Vojnovic, and Gunawardena, 2007)
Conclusion:
I believe that researches are trying to increase effectiveness of applications operating on the Internet, I think that all serving the which we called in the future internet 2 , and I understand from those researches in general is that they seek to control the jam of time and size of the exchange of information without compromising the quality of this data. References:
Kurose J. & Ross K. (2007): Computer networking: a top-down approach. 4th ed. Pearson education.
ITEF website. (2003) : TCP Friendly. [Internet] Available at: http://www.ietf.org/rfc/rfc3448.txt (Accessed on 26 JAN 2008)
Mahdavi, J. & Floyd S. (1999) : TCP-Friendly. [Internet] Available at: http://www.psc.edu/networking/projects/tcpfriendly/ (Accessed on 26 JAN 2008)
Sisalem D. & Schulzrinne H. (n. d.) : The Loss-Delay Based Adjustment Algorithm: A TCP-Friendly Adaptation Scheme
. [Internet] Available at: http://www.psc.edu/networking/projects/tcpfriendly/ (Accessed on 26 JAN 2008)
Liu J. & Vojnovic M. and Gunawardena D.(2007) : 4CP
. [Internet] Available at: http://research.microsoft.com/~milanv/4CP.htm (Accessed on 26 JAN 2008)