White Papers

TCP's Protocol Radius: The Distance Where Timers Prevent Communication

Tags: ip

Overview This paper examines how the design of the Transmission Control Protocol (TCP) implicitly presumes a limited range of path delays and distances between communicating endpoints. It shows that TCP is less suited to larger delays due to the interaction of various timers present in TCP implementations that limit performance and, eventually, the ability to communicate at all as distances increase. The resulting performance and protocol radius metrics that the authors establish by simulation indicate how the TCP protocol performs with increasing distance radius between two communicating nodes, and show the boundaries where the protocol undergoes visible performance changes. This allows assessing the suitability of TCP for long-delay communication, including for deep-space links.

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Publisher: Cisco Systems
File Format: PDF
Date Published: Dec 20, 2007
Format: White Papers
Topics: TCP - IP, Mobile - Wireless Communications

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