NDLI: Applying parallel discrete event simulation to network emulation

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Applying parallel discrete event simulation to network emulation

Content Provider	ACM Digital Library
Author	Unger, Brian Simmonds, Rob Bradford, Russell
Abstract	The simulation of wide area computer networks is one area where the benefits of parallel simulation have been clearly demonstrated. Here we present a description of a system that uses a parallel discrete event simulator to act as a high speed network emulator. With this, real Internet Protocol (IP) traffic generated by application programs running on user workstations can interact with modelled traffic in the emulator, thus providing a controlled test environment for distributed applications.The network emulator uses the TasKit conservative parallel discrete event simulation (PDES) kernel. TasKit has been shown to be able to achieve improved parallel performance over existing conservative and optimistic PDES kernels, as well as improved sequential performance over an existing central-event-list based kernel. This paper explains the modifications that have been made to TasKit to enable real-time operation along with the emulator interface that allows the IP network simulation running in the TasKit kernel to interact with real IP clients. Initial emulator performance data is included.
Starting Page	15
Ending Page	22
Page Count	8
File Format	PDF
ISBN	0769506674
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2000-05-01
Access Restriction	Subscribed
Subject Keyword	Real-time simulation Internet protocol (ip) Parallel discrete event simulation (pdes) Conservative protocol Computer network emulation Critical channel traversing
Content Type	Text
Resource Type	Article

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