Paper Info
Title
TimeSync: enabling scalable, high-fidelity hybrid network emulation
Abstract
In this paper, we discuss a time synchronization approach to the time divergence problem in hybrid network emulation. Such emulation comprises primarily a discrete-event simulated network and virtual machines that send and receive traffic through the simulated network. For slower than real-time network simulations, the rate of time advance on virtual machines (real time) is faster than that of the discrete-event time. Consequently, packet transmission latency and other metrics in such hybrid network emulations will be distorted. As a result, e.g., TCP sessions between virtual machines may unduly time out. To address this problem, we have developed TimeSync, which tracks discrete-event simulation time to control time advance on virtual machines for slower than real time simulations so that time perception in the hybrid network emulation system is synchronized. We describe how TimeSync works and present our experimental evaluation and analysis.
Year
DOI
Venue
2012
10.1145/2387238.2387271
MSWiM
Keywords
Field
DocType
high-fidelity hybrid network emulation,time perception,discrete-event simulated network,discrete-event time,enabling scalable,time synchronization approach,real time simulation,time advance,virtual machine,discrete-event simulation time,time divergence problem,real time,virtualization,clock synchronization
High fidelity,Virtualization,Virtual machine,Computer science,Latency (engineering),Computer network,Real-time computing,Clock synchronization,Emulation,Distributed computing,Scalability,Network emulation
Conference
Citations 
PageRank 
References 
3
0.48
7
Authors
9
Name
Order
Citations
PageRank
Florin Sultan114512.42
Alex Poylisher2365.40
John Lee370.96
Constantin Serban4598.07
C. Jason Chiang5102.14
Ritu Chadha613726.01
Keith Whittaker7141.90
Chris Scilla830.81
Syeed Ali930.48