An efficient traffic control scheme for TCP over ATM GFR services

Authors:
Chia-Tai Chan;Pi-Chung Wang;Yaw-Chung Chen
Affiliations:
Telecommunication Laboratories, Chunghwa Telecom Co. Ltd., Taipei 106, Taiwan, ROC;Telecommunication Laboratories, Chunghwa Telecom Co. Ltd., Taipei 106, Taiwan, ROC and Department of Computer Science and Information Engineering, National Chiao Tung University, Hsinchu 30050, Ta ...;Department of Computer Science and Information Engineering, National Chiao Tung University, Hsinchu 30050, Taiwan, ROC
Venue:
Computer Networks: The International Journal of Computer and Telecommunications Networking
Year:
2002

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Abstract

In ATM networks, the guaranteed frame rate (GFR) service category has been defined to support user applications which are neither able to specify the range of traffic parameter values, nor able to comply with the behavior rules. It provides a packet-level rate guarantee with a given maximum packet size. The service specifies that the excessive traffic from a user should share the available resource fairly. In this paper, we investigate TCP/IP packet transmission over ATM by using a selective packet-discard strategy with tracking of the available buffer space and a packet push-out buffering scheme to accommodate the GFR service. The simulation results show that our proposed method fulfills the requirements of GFR service as well as improves the TCP throughput under the common FIFO scheduling. A feasible implementation approach is also addressed.