Dynamics of TCP flow control over high-speed ATM networks

Author

Kawarasaki, Masatoshi ; Ishizuka, Mika ; Koike, Arata

Author_Institution

Multimedia Network Labs., Nippon Telegraph & Telephone Corp., Tokyo, Japan

Volume

1

fYear

1998

Firstpage

606

Abstract

TCP performance over high-speed ATM networks is evaluated. In TCP over UBR (unspecified bit rate), packet losses caused by congestion deteriorates throughput and fairness. Even if early packet discard (EPD) is added, fairness still remains as a problem as long as cell loss occurs. TCP over ABR(ER) (available bit rate-explicit rate) can provide high performance by suppressing cell loss, as long as ABR rate control does not interact with TCP flow control. Coarse timer granularity and large window size can avoid the interaction. When end-to end ABR is not available, further enhancement of TCP control using implicit or explicit congestion notification is needed for performance improvement

Keywords

asynchronous transfer mode; computer networks; telecommunication congestion control; transport protocols; ABR; TCP flow control; UBR; available bit rate-explicit rate; cell loss; coarse timer granularity; congestion; congestion notification; dynamics; early packet discard; fairness; flow control; high-speed ATM networks; large window size; packet losses; performance; rate control; throughput; unspecified bit rate; Bit rate; Communication system control; Laboratories; Performance loss; Standardization; TCPIP; Telegraphy; Telephony; Throughput; Transport protocols;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on

Print_ISBN

0-7803-4788-9

Type

conf

DOI

10.1109/ICC.1998.682958

Filename

682958