ESTIMATION OF TOKEN BUCKET PARAMETERS FOR VIDEOCONFERENCING SYSTEMS IN CORPORATE NETWORKS

In this paper we examine bandwidth requirements of videoconferencing systems in corporate networks. Based on extensive measurements with different H.323 applications under various conditions, important statistical traffic properties are determined. In particular, we estimate token bucket parameters and calculate effective bit rates according to the Guaranteed Service approach specified by the IETF in the Integrated Services Architecture. Finally, we evaluate the theoretical results through simulations using the obtained traces as traffic input.

[1]  Hui Zhang,et al.  Service disciplines for guaranteed performance service in packet-switching networks , 1995, Proc. IEEE.

[2]  Nsf Ncr,et al.  A Generalized Processor Sharing Approach to Flow Control in Integrated Services Networks: The Single Node Case* , 1991 .

[3]  Abhay Parekh,et al.  A generalized processor sharing approach to flow control in integrated services networks-the single node case , 1992, [Proceedings] IEEE INFOCOM '92: The Conference on Computer Communications.

[4]  Gang Feng,et al.  A sub-band MPLPC coder for high quality speech coding at 16 kbit/s , 1993, EUROSPEECH.

[5]  Zheng Wang,et al.  An Architecture for Differentiated Services , 1998, RFC.

[6]  John Wroclawski,et al.  Specification of the Controlled-Load Network Element Service , 1997, RFC.

[7]  Abhay Parekh,et al.  A generalized processor sharing approach to flow control in integrated services networks: the single-node case , 1993, TNET.

[8]  Scott Shenker,et al.  Integrated Services in the Internet Architecture : an Overview Status of this Memo , 1994 .

[9]  Scott Shenker,et al.  Specification of Guaranteed Quality of Service , 1997, RFC.

[10]  Alberto Leon-Garcia,et al.  Call Admission and Resource Reservation for Guaranteed QoS services in Internet , 1998 .

[11]  David L. Black,et al.  An Architecture for Differentiated Service , 1998 .

[12]  Roch Guérin,et al.  Efficient Support of Delay and Rate Guarantees in an Internet , 1996, SIGCOMM.

[13]  Leonidas Georgiadis,et al.  Efficient support of delay and rate guarantees in an internet , 1996, SIGCOMM 1996.