Bandwidth allocation mechanism for LAN/MAN interworking with an ATM network

Abstract In the evolutionary path to Broadband-ISDN based on the Asynchronous Transfer Mode, the interconnection of LANs and MANs will be one of the first high-speed applications. However, interworking between LANs/MANs and ATM is an open problem, since LANs and MANs use a connectionless transfer mode, whereas ATM is a connection-oriented technique. This paper focuses on a main problem arising within the interworking unit connecting a LAN/MAN and the ATM network: the bandwidth allocation for the ATM virtual channel established between the IWU and a CL-server. A possible bandwidth allocation mechanism based on an estimation of the bandwidth requirements of the incoming traffic stream which is routed to the CL-server is described. To investigate the performance behaviour of this mechanism, an analytical model based on a fluid flow approach is developed which will be validated by simulation. Comparing different bandwidth allocation strategies we show, besides other results, the trade-off between buffer size and the allocated bandwidth on the ATM virtual channel to provide a certain quality of service in terms of packet loss and delay.

[1]  Mario Gerla,et al.  Interconnecting LANs and MANs to ATM , 1991, [1991] Proceedings 16th Conference on Local Computer Networks.

[2]  Masami Ishikura,et al.  ATM network architecture for supporting the connectionless service , 1990, Proceedings. IEEE INFOCOM '90: Ninth Annual Joint Conference of the IEEE Computer and Communications Societies@m_The Multiple Facets of Integration.

[3]  E. Tirtaatmadja,et al.  The application of virtual-paths to the interconnection of IEEE 802.6 metropolitan area networks , 1990, International Symposium on Switching.

[4]  Mario Gerla,et al.  Bandwidth advertising for MAN/ATM connectionless internetting , 1991, IEEE INFCOM '91. The conference on Computer Communications. Tenth Annual Joint Comference of the IEEE Computer and Communications Societies Proceedings.

[5]  Nanying Yin,et al.  A Dynamic Rate Control Mechanism for Source Coded Traffic in a Fast Packet Network , 1991, IEEE J. Sel. Areas Commun..

[6]  Roger C. F. Tucker,et al.  Accurate method for analysis of a packet-speech multiplexer with limited delay , 1988, IEEE Trans. Commun..

[7]  V. Trecordi,et al.  A proposal for interconnecting FDDI networks through B-ISDN , 1991, IEEE INFCOM '91. The conference on Computer Communications. Tenth Annual Joint Comference of the IEEE Computer and Communications Societies Proceedings.

[8]  D. Mitra,et al.  Stochastic theory of a data-handling system with multiple sources , 1982, The Bell System Technical Journal.