Title: Gfr --providing Rate Guarantees with Fifo Buffers to Tcp Traffic. Distribution: Atm Forum Technical Working Group Members (af-tm)

In this contribution we present analysis and simulation results on controlling TCP rates by buffer allocation When segment loss is low TCP throughput depends primarily on the TCP window size and the round trip time of the connection As a result it is possible to control TCP rates with FIFO queuing We present a buffer management policy called Differential Fair Buffer Allocation that provides loose rate guarantees to SACK TCP sources when the sum of the MCRs is significantly lower than the network capacity We study the performance of differential fair buffer allocation by simulation Source Rohit Goyal Raj Jain Sonia Fahmy Bobby Vandalore Shiv Kalyanaraman Department of CIS The Ohio State University and NASA Dreese lab Neil Ave Columbus OH Phone Fax Email goyal jain cis ohio state edu Sastri Kota Pradeep Samudra Lockheed Martin Telecommunications Astrolink Broadband Network Lab Borregas Avenue Samsung Electronics Co Ltd Bldg B O GB Samsung Telecom America Inc Sunnyvale CA E Arapaho Richardson TX Email sastri kota lmco com email psamudra telecom sna samsung com Date September Paris France Distribution ATM Forum Technical Working Group Members AF TM Notice This contribution has been prepared to assist the ATM Forum It is offered to the Forum as a basis for discussion and is not a binding proposal on the part of any of the contributing organizations The statements are subject to change in form and content after further study Specifically the contributors reserve the right to add to amend or modify the statements contained herein