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An Ada Runtime System Implementation of the Ravenscar Profile for High Speed Application-Layer Data Switch

  • Mike Kamrad
  • Barry Spinney
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1622)

Abstract

The Top Layer Networks AppSwitch™ is a coordinated hardware and software Layer 7-application switch designed to provide Application Control for data communication networks by automatically prioritizing network traffic according to the user and the application that is generating the messages. The AppSwitchTM software was developed in Ada95 (A companion paper describes how that software was built [1]). The nature of the application and the need for efficiency has dictated that the use of multiple task communication and synchronization be kept simple and straightforward. As a result, the communication and synchronization needs are very similar those defined in the Ravenscar Profile. Top Layer Networks found it necessary to construct an Ada runtime system that efficiently supported the Ravenscar Profile. The paper will describe the details of our Ravenscar Profile and will summarize its impact on the performance of the AppSwitch™ software.

Keywords

Runtime System Network Administrator Protected Object Handler Code Forward Engine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Kamrad, M.: An Application (Layer 7) Routing Switch with Ada95 Software, 1999 Ada-Europe Conference.Google Scholar
  2. 2.
    On-Line Application Research Corporation: Real-Time Executive for Military Systems: Ada Applications User’s Guide. Release 3.2.X, May 1995.Google Scholar
  3. 3.
    Baker, T., Giering, E.: PART/GNARL Interface Definition. Version 1.24. Florida State University, Aug. 1993.Google Scholar
  4. 4.
    Oh, D., Baker, T.: Optimization of Ada’95 Tasking Constructs, TriAda’97, St. Louis Missouri USA, 1997.Google Scholar
  5. 5.
    Lea, D.: A Memory Allocator. unix/mail. December, 1996.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Mike Kamrad
    • 1
  • Barry Spinney
    • 1
  1. 1.Top Layer Networks, Inc.WestboroughUSA

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