Dynamic bandwidth control in ATM networks (original) (raw)
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Proceedings. Ninth IEEE International Conference on Networks, ICON 2001., 2000
Bandwidth allocation is a very important issue in ATM networks, especially when there are random fluctuating demands for service and variations in the service rates. In order to make ATM reliable, ATM is designed to support not only a wide range of traffic classes with diverse flow characteristics but also to guarantee the different Quality of Service (QoS) requirement as well. The QoS may be measured in terms of cell loss probability and maximum cell delay.
Design and analysis of a bandwidth management framework for ATM-based broadband ISDN
IEEE Communications Magazine, 1997
When designing and configuring an ATM-based B-ISDN, it remains difficult to guarantee the Quality of Service (QoS) for different service classes, while still allowing enough statistical sharing of bandwidth so that the network is efficiently utilized. These two goals are often conflicting. Guaranteeing QoS requires traffic isolation, as well as allocation of enough network resource (e.g. buffer space and bandwidth) to each call. However, the statistical bandwidth sharing means the network resource should be occupied on-demand, leading to less traffic isolation and minimal resource allocation. We address this problem by proposing
Congestion control strategies in ATM networks
European Transactions on Telecommunications, 1992
Asynchronous Transfer Mode (ATM) is a promising technique to implement the Broad-band ISDN. When bursty sources are considered, high network efficiency can be obtained by taking advantage of statistical multiplexing. This technique requires to monitor the user behavior, in order to guarantee that the actual traffic parameters do not exceed the maximum values compatible with the required Grade of Service. The paper reviews the major results on the analysis of the control mechanisms. In particular, the three following issues are considered. The Connection Admission Control for both homogeneous and heterogeneous traffic sources is analyzed and the performance of different approaches are compared. The Leaky Bucket mechanism is studied for the Usage Parameter Control and its performance, such as reaction and recovery time, are analyzed. The traffic shaping function is considered in both cases of availability and non availability of a feedback on the traffic sources. The effectiveness of this functionality is investigated.
Bandwidth Allocation of Multiple QoS Classes in ATM Environment
IEEE INFOCOM, 1994
For future Broadband-ISDN, Asynchronous Transfer Mode (ATM) is designed not only to support a wide range of traffic classes with diverse flow characteristics (e.g., burstiness, bit rate and burst length), but to guarantee the different quality of service (QOS) requirements as well. The QOS may be mea- sured in terms of cell loss probability and maximum cell delay. In this
A Dynamic Traffic Shaping Technique for a Scalable QoS in ATM Networks
The International Arab Journal of Information Technology, 2008
Traffic shaping function becomes imperative for the new broadband services that are being deployed in order to avoid information loss, to provide the end users multiple traffic options in terms of bandwidth and to ensure optimal use of the communication channels. To simultaneously manage the amount of cell loss and delay experienced by two or more classes of service categories constant bit rate/ variable bit rate, we developed a new buffer partitioning scheme tagged complete sharing with gradual release. The proposed model was combined with a scheduling method known as weighted round robin with absolute increment. An analytical model was developed for the proposed buffer partition to dynamically monitor and determine the output mean rate of the classes of service present, and the individual mean rate of the class of service. The model was simulated and performance evaluation carried out. The result thus obtained depicts a better performance as a method of traffic shaper in a multi-quality of service traffic over asynchronous transfer mode networks.
IEEE INFCOM '91. The conference on Computer Communications. Tenth Annual Joint Comference of the IEEE Computer and Communications Societies Proceedings, 1991
Congestion control mechanisms are required in asynchronous transfer mode (ATM) networks to fairly and efficiently allocate network resources to the various service types. Bandwidth assignment is a preventive control mechanism. A bandwidth called equivalent bandwidth is allocated in order to ensure the cell transport objectives. A definition is proposed of equivalent bandwidth for stream, bursty data and variable bit rate
A dynamic bandwidth allocation service for ATM-based networks supporting multimedia applications
ATM, 1998. ICATM-98., …, 1998
This paper describes a prototype implementation of a dynamic bandwidth allocation service for ATM-based networks. The major purpose of this service is to increase resource utilization in a network supporting multimedia applications. The implementation was made using API (Application User Interface) compatible with UNI version 3.0. The implementation consists of a set of primitives and their related PDUs (Protocol Data Units). Some measurements were done using the prototype implementation in order to observe the behavior of renegotiation rejections with respect to some parameters, such as node capacity, level of reservations, number of nodes and so on. The results here shown that dynamic bandwidth allocation service can be used to increase resource utilization and, at the same time, to provide a high level of guarantee to the accepted connections.
Bandwidth allocation for connectionless traffic in ATM networks
Biometric Technology Today, 1995
Asynchronous transfer mode (ATM) is the emerging standard for broadband networking (B-ISDN) with its ability to support integrated traffic (data/voice/image/video). Information is exchanged in ATM networks by prior establishment of connection between source and destination(s). This brings up the question of how one can interconnect connectionless oriented LANs and MANs (non-ATM based networks) with connection oriented ATM. Bandwidth negotiation with the ATM network to meet the quality of service (QoS) requirements of the source traffic is one of the primary concerns of internetworking LAN/MAN and ATM. The paper initially assesses existing protocols in terms of the bandwidth allocation with respect to QoS requirements. The merits and demerits of these protocols are also discussed. A new protocol, “bandwidth allocation on source demand,” is proposed in which the data transfer is based on “establishing a communication channel” to the destination utilizing the bandwidth advertisement feature. The proposed protocol is more reliable, in terms of presenting source traffic to the network, and will provide better performance over existing protocols. A framework to measure the performance of the proposed protocol is identified
DIDA: a Distributed, Dynamic and Adaptive VP bandwidth management scheme for ATM networks
Computer Communications, 2000
Virtual Path (VP) provisioning has gained wide acceptance as an effective resource management technique for improving transmission efficiency in ATM networks. VP bandwidth management in particular could absorb short-term fluctuations in traffic and improve callblocking probability. In this paper, we propose a distributed and dynamic VP bandwidth management scheme called DIDA, which absorbs medium scale traffic fluctuations and improves the call blocking probability. The proposed scheme incorporates an adaptive traffic estimator that is suitable even for VPs carrying heterogeneous traffic. Simulation studies conducted on DIDA show that the adaptive estimator of DIDA improves the call blocking probability in an ATM network, with VPs carrying heterogeneous traffic while maintaining fairness among different call types at the same time.
Bandwidth assignment and virtual call blocking in ATM networks
Proceedings. IEEE INFOCOM '90: Ninth Annual Joint Conference of the IEEE Computer and Communications Societies@m_The Multiple Facets of Integration, 1990
Congestion control is required in ATM (Asynchronous Transfer Mode) networks to fairly allocate network resources to the various service types and mixes carried out by the high speed wide area networks. Admission control is one of the congestion control mechanisms to be executed at the virtual call set-up. Access nodes decide to accept or reject a connection request based on a description of the traflc anticipated by the bursty source and of the traflc load encountered by the connection along the network route. To each new connection an appropriate bandwidth is assigned in order to ensure that the cell transport performance (cell losses and delay) remains at a satisfactory level for all users.