Title :
A new discarding policy for balanced throughput and fairness based on per-VC EPD mechanism
Author :
Li, Zhenbin ; Zhu, Jing ; Niu, Zhisheng
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
The performance of TCP-over-ATM using ABR and UBR services is of great importance to ATM development. Since the traffic control mechanism of ABR is quite complex, UBR is still an important candidate for TCP-over-ATM networks. In the paper we propose a new discarding policy with dual threshold based on per-VC EPD mechanism for UBR-based TCP-over-ATM networks. The policy requires keeping the maximum and the minimum of per-VC queue length in the ATM switch to determine when to drop incoming TCP packets. Our simulation results show that the scheme improves the TCP performance for balanced throughput and fairness.
Keywords :
Internet; asynchronous transfer mode; packet switching; quality of service; queueing theory; telecommunication congestion control; telecommunication traffic; transport protocols; ABR service; ATM switch; Internet; QoS; TCP performance; TCP-over-ATM networks; UBR service; balanced throughput; discarding policy; dual threshold; early packet discard; fairness; packet dropping; per-VC EPD mechanism; per-VC queue length; simulation results; Asynchronous transfer mode; Bandwidth; Bit rate; Internet; Packet switching; Quality of service; Switches; Throughput; Traffic control; Transport protocols;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.824505
