D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in High Performance Networking, IV, (Amsterdam, Netherlands), pp. 367-- 382, IFIP Transactions C-14, North Holland, 1993.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....distributed applications, even if they are placed on top of modern high speed networks. First, these protocols represent a performance bottleneck (due to their complexity) and second, they mainly support only reliability related Quality of Service (QoS) aspects. Systems like F CSS [1] ADAPTIVE [2], and Da CaPo try to solve this problem with protocol configuration. The particular aim of the Da CaPo (Dynamic Configuration of Protocols) project is to support a wide range of application requirements and to increase protocol performance by decreasing protocol complexity. Da CaPo applications ....

Box, D. F., Schmidt, D. C., Suda, T.: "ADAPTIVE - An Object-Oriented Framework for Flexible and Adaptive Communication Protocols", Proceedings of 4th IFIP conference on high performance networking, hpn 92, Liege, Belgium, December 1992

....transport protocol used either TCP IP or a specific transport such as described in [ BN84] More and more new applications using different traffic types such as text, audio and video ask for diverse transport requirements of error or flow control for example. To solve this problem, Tsc91] BSS92] explored the ability to design and implement flexible transport protocols tailored to the application. We think this approach may be extended to integrate the transmission control mechanism within the application. In order to consider the communication requirements within a distributed ....

D.F. Box, D.C. Schmidt, and T. Suda. ADAPTIVE - An Object-Oriented Framework for Flexible and Adaptive Communication Protocols. In Proceedings of the IFIP Conference on High Performance Networking 92, pages H1--1--15, Liege, Belgium, Decembre 1992.

....to application needs providing a service integrated communication subsystem architecture based on the functional decomposition of communication protocols into separate protocol functions and mechanisms. Comparable but different approaches in terms of their main research aspects are ADAPTIVE [17] or Da CaPo [18] 2 Protocol Configuration Regarded as an entire architecture, F CSS includes certain features and tools ( 16] and [19] These features, e.g. fine grained QoS specification, such as with qualitative and quantitative criteria, flexibility, and automated protocol configuration, ....

D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in High Performance Networking, IV, (Amsterdam, Netherlands), pp. 367--382, IFIP Transactions C-14, North Holland, 1993.

....for both, such as data packet generation and data transmission. Therefore, a suitable configuration of a communication protocol can be determined by certain QoS parameters specified by an application. Approaches, such as the proposed flexible 14 protocol configurations [19] 47] and [48], require the tasks of updating their QoS parameter values. However in general, other areas of QoS oriented work (such as modern protocols [10] new architectures [49] enhanced service interfaces [19] 15] and operating system support [41] 31] cf. Subsection 5.4) have to be regarded in an ....

....Scheme (RG 19372) 44 needs providing a service integrated communication subsystem architecture based on the functional decomposition of communication protocols into protocol functions and mechanisms. Comparable but different approaches in terms of their main research aspects are ADAPTIVE [48] or Da CaPo [47] C.2 Communication Protocol Configuration Regarded as an entire architecture, F CSS includes certain features and tools [19] 20] These features, e.g. fine grained QoS specification, defined by qualitative and quantitative criteria, flexibility, and automated protocol ....

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D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in High Performance Networking, IV, (Amsterdam, Netherlands), pp. 367--382, IFIP Transactions C-14, North Holland, 1993.

....of transport related QoS, which in turn adjusts the overall behavior to the application requested QoS if possible. If changes of these CF parameters do not achieve a proper behavior of the overall system, solution 3 may solve the problem, if (re )configuration tools are available [27] 28] [29], such as encountering a retransmission function, if the requested reliability drops below a defined limit. Otherwise solution 4 can be regarded as a coarse grained reconfiguration task, e.g. exchanging TCP for UDP. Solution 5 deals with a rather end system oriented view, which proposes service ....

....transfer may be kept as before (solution 6) or will be completely aborted (solution 7) Obviously, this decision depends on tolerance features of the considered application. As solution 1, 6, and 7 can be implemented quite easily and solution 3, 4, and 5 are discussed elsewhere [27] 28] 26] [29], the remainder is focussed on the pertinent framework to solution 2, the update of CF parameters. This approach is reasonable in various cases, where the service offered to the application has to be changed, but reconfigurations of the protocol s functionality are considered as too complex. 3.2 ....

D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in High Performance Networking, IV, (Amsterdam, Netherlands), pp. 367--382, IFIP Transactions C-14, North Holland, 1993.

....selection of protocols applied. Since different applications have specific functional and performance requirements [5] the choice of protocols can depend on the actual functional and quality requirements of a specific application association and can reduce the complexity of node functions [4, 7, 13, 17, 19]. On the other hand the approach of flexible protocol selection also poses new central problems. A broad spectrum of protocols has to be defined preferably by standards , implementations have to be available at runtime, and the protocol selection efficiently has to be performed. Instead of ....

D. Box and other. Adaptive an object-oriented framework for flexible and adaptive communication protocols. In A. Danthine and O. Spaniol, editors, 4th IFIP conference on High Performance Networking. North-Holland, 1993.

.... been developed, that allow service users to determine protocol functionality, like flexible light weight transport protocols such as XTPX [26] HSTP [8] TP [15] and flexible communication subsystems that cover the OSI layers three to seven, such as HOPS [22] Virtual Protocols [29] ADAPTIVE [3], F CSS ( 41] and [46] and Da CaPo ( 33] and [38] In the last years, it has been recognized that protocols are not able to offer end to end guarantees for QoS, even if they are placed on top of networks that support QoS guarantees, like ATM. Consequently, research on QoS issues has been ....

....Version 3.1 (UNI 3.1) ATM Forum, ATM Forum, September 1994 [2] Bauer, D. Stiller, B. Plattner, B. An Error Control Scheme for a Multicast Protocol Based on Round Trip Time Calculations , in: Proceedings of 21st Conference on Local Computer Networks, Minneapolis, MN, U.S.A. October 1996 [3] Box, D. F. Schmidt, D. C. Suda, T. ADAPTIVE An Object Oriented Framework for Flexible and Adaptive Communication Protocols , Proceedings of 4th IFIP conference on high performance networking, hpn 92, Liege, Belgium, December 1992 [4] Bringsrud, K. A. Pedersen, G. Distributed Electronic ....

[Article contains additional citation context not shown here]

Box, D. F., Schmidt, D. C., Suda, T.: "ADAPTIVE - An Object-Oriented Framework for Flexible and Adaptive Communication Protocols", Proceedings of 4th IFIP conference on high performance networking, hpn 92, Liege, Belgium, December 1992

....QoS parameters are mapped onto XTPX procedures and parameters to adapt the protocol machine; while in the Quality of Service Architecture (QoS A) 5] QoS specifications from service users are classified and mapped onto profiles to tailor some mechanism of the protocol machine to be used. ADAPTIVE [6] performs a similar approach: the configuration process examines the application requirements and attempts to match them to a pre configured transport service class. The Function Based Communication SubSystem (F CSS) 7] offers four pre defined service classes to applications without special ....

Box, D. F., Schmidt, D. C., Tatsuya, S.: "ADAPTIVE - An Object-Oriented Framework for Flexible and Adaptive Communication Protocols", in: Proceedings hpn92, 4th IFIP Conference on High Performance Networking, December 1992

....step (or in several parallel steps) instead of performing them sequentially. O Malley and Peterson [4] address the issue of constructing a protocol entity from a set of microprotocols (the equivalent of protocol functions) using the notion of a virtual protocol. The objectoriented ADAPTIVE system [5] allows protocol configuration and reconfiguration guided by classes of protocol mechanisms. F CSS [6] is a functionbased model for a communication subsystem and sup ports the application driven configuration of efficient protocol machines tailored to the needs of the application. Protocol ....

Box, D. F., Schmidt D. C., Suda, T.: "ADAPTIVE An Object-Oriented Framework for Flexible and Adaptive Communication Protocols", Proceedings hpn92, 4th IFIP conference on high performance networking, Dezember 1992

....support a wide range of application requirements on top of current networks (ranging from slow modem lines up to gigabit networks) without adding overhead in form of unnecessary functionality for multiple combinations of application requirements and networks. Communication subsystems like ADAPTIVE [1], Da CaPo [2, 3, 4] F CSS [5, 6] HOPS [7] and O Malley and Petersons approach [8, 9] try to solve this problem by introducing highly flexible communication subsystems and a protocol configuration approach. The main principles of protocol configuration are decomposition and configuration. ....

....be constructed in each end system. Generally, executable protocols are constructed by linking the selected building blocks. Construction times might be minimized by linking all available building blocks in the communication subsystem at its boot time [4, 9] and by using preconstructed protocols [1, 5]. The protocol performance in the association established phase is mainly effected by scheduling, interrupts, context switches, interprocess communication, and management of timers, buffers, and connection states [7] In comparison to fixed and monolithically implemented protocols, protocol ....

Box, D. F., Schmidt, D. C., Suda, T.: "ADAPTIVE - An Object-Oriented Framework for Flexible and Adaptive Communication Protocols", Proceedings of 4th IFIP conference on high performance networking, hpn 92, Liege, Belgium, December 1992

....such as XTPX [36] HSTP [13] and TP [19] enable the transport user to select a retransmission strategy. The systems HOPS [23] and Virtual Protocols [41] allow to combine fine granular building blocks to protocols that comprise the functionality of the OSI layers three up to seven. ADAPTIVE [5], FCSS ( 53] and [60] and Da CaPo ( 43] and [46] additionally support mapping of application requirements onto protocol functionality. Operating system support in endsystems: the CPU of an endsystem represents the most limited resource for multimedia protocols and QoS guarantees require a ....

Box, D. F., Schmidt, D. C., Suda, T.: "ADAPTIVE - An Object-Oriented Framework for Flexible and Adaptive Communication Protocols", Proceedings of 4th IFIP conference on high performance networking, hpn 92, Liege, Belgium, December 1992

....and a horizontally oriented protocol for high speed communication (HOPS) built on simple protocol functions. Haas proposes a protocol with a menu , whereby users can request some combinations of functions that are needed to achieve some level of performance. The objectoriented system ADAPTIVE [16] focuses on a transport system architecture and allows protocol configuration and reconfiguration constrained by one protocol graph. The function based model for a communication subsystem FCSS [17] is the most similar approach to Da CaPo. FCSS supports the application driven configuration of ....

Box, D. F. ,Schmidt, D. C., Tatsuya, S.: "ADAPTIVE An Object-Oriented Framework for Flexible and Adaptive Communication Protocols", in: Proc. hpn92, 4th IFIP Conf. on high performance networking, Dec. 1992.

....and provide lower performance than expected. Furthermore, most traditional communication subsystems support reliability related Quality of Services (QoS) aspects only. Missing aspects include, e.g. synchronization, security, or the negotiation of QoS. Communication subsystems like ADAPTIVE [1], F CSS ( 2] and [3] and Da CaPo ( 4] and [5] try to reduce protocol complexity, increase protocol performance, and serve as well various QoS guarantees by introducing a protocol configuration approach. Further approaches for high speed communication systems are presented and classified in ....

D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in High Performance Networking, IV, (Amsterdam, Netherlands), pp. 367-- 382, IFIP Transactions C-14, North Holland, 1993.

....such as XTPX [16] HSTP [8] and TP [10] enable the transport user to select a retransmission strategy. The systems HOPS [13] and Virtual Protocols [18] allow to combine fine granular building blocks to protocols that comprise the functionality of the OSI layers three up to seven. ADAPTIVE [3], F CSS ( 28] and [32] and Da CaPo ( 20] and [21] additionally support mapping of application requirements onto protocol functionality. New operating system mechanisms and abstractions: I O intensive applications are supported via direct device to device data movement in the container ....

Box, D. F., Schmidt, D. C., Suda, T.: "ADAPTIVE - An Object-Oriented Framework for Flexible and Adaptive Communication Protocols", Proceedings of 4th IFIP conference on high performance networking, hpn 92, Liege, Belgium, December 1992

.... while (rpc svc.get request (msg) 0) process request (msg) rpc svc.reply (msg) NETWORK INTERFACE APPLICATION INTERFACE MAPPING TOOLS SYNTHESIS TOOLS Figure 4: ADAPTIVE Protocol Machine Generation and Execution Stages ments of the application and (2) the underlying network capabilities [27]. 5.1.2 Protocol Machine Execution Phase Figure 4 (2) illustrates several activities performed by applications and ADAPTIVE transport system components at run time. As shown in the upper half of the figure, applications open certain communication devices (such as an FDDI controller) and ....

D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in Proceedings of the 4 th IFIP Conference on High Performance Networking, (Liege, Belgium), pp. 367--382, IFIP, 1993.

.... [12] which facilitates software reuse) and dynamic binding (which both decouples mechanism interfaces from the mechanism algorithms and defers certain implementation decisions until run time) These techniques facilitate a modular, extensible, and efficient object oriented software architecture [13] for the configuration, synthesis, and mapping tools described in the following section. 3 Tool Classes This section describes several classes of tools that transform high level descriptions of qualitative and quantitative application service requirements into lower level protocol machines that ....

D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in Proceedings of the 4 th IFIP Conference on High Performance Networking, (Liege, Belgium), pp. 367--382, IFIP, 1993.

....support multimedia applications and (2) mapping this functionalityonto efficient parallel process architectures. 1 Introduction This paper describes a flexible environment called the ADAPTIVE system, A Dynamically Assembled Protocol Transformation, Integration, and eValuation Environment [1, 2]. ADAPTIVE provides an integrated set of tools for developing and experimenting with flexible transport system 2 architec 1 This material is based upon work supported by the National Science Foundation under Grant No. NCR 8907909. This research is also supported in part by the University of ....

D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in Proceedings of the 4 th IFIP Conference on High Performance Networking, (Liege, Belgium), pp. 367--382, IFIP, 1993.

....implemented by a separate protocol machine that is customized for a specific set of application requirements during a particular time period. Furthermore, a protocol machine may be updated at run time to adapt to changes in the application, local and remote operating systems, or underlying network [7]. Figure 1 depicts the relationships between the various components in the function based communication model outlined above. In this figure, Application A maintains two sessions. Session 1 contains two outgoing data streams and one incoming data stream and Session 2 contains a single outgoing ....

D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in Proceedings of the 4 th IFIP Conference on High Performance Networking, (Liege, Belgium), pp. 367--382, IFIP, 1993.

....libraries and information bases) specification notations and configuration languages, and supporting tools. Although the framework described in this paper is oriented towards the function based communication model, it is designed to support other types of traditional communication models as well [10]. 2.1 The Function based Model and Communication Architecture Traditional communication models (such as the Internet and ISO OSI reference models) are characterized by hierarchical protocol layers. However, the efficiency, functionality, and flexibility of these layered communication models may ....

.... mechanism interfaces from mechanism algorithms and defers certain implementation decisions until run time) These techniques facilitate a modular, extensible, and efficient object orientedsoftware architecture for the configuration and synthesis tools, as well as for the run time environment [10]. ffl Control Nodes: Control nodes represent functions that coordinate and synchronize protocol and anchor nodes in the protocol machine. Rendezvous nodes [18] are a subtype of control nodes that represent special pseudo functions that 3 Information units consist of application data and protocol ....

D. F. Box, D. C. Schmidt, and T. Suda, "ADAPTIVE: An Object-Oriented Framework for Flexible and Adaptive Communication Protocols," in Proceedings of the 4 th IFIP Conference on High Performance Networking, (Liege, Belgium), pp. 367--382, IFIP, 1993.

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Box, D.F., Schmidt, D.C., Sude, T., "Adaptive -- An Object Oriented Framework for Flexible and Adaptive Communication Protocols", Proceedings, 4th IFIP Conference on High Performance Networking, Liege (Belgium), Dec. 1992.

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