usenet@falkor.UUCP (01/19/87)
Columbia University Computer Science Department
Distributed Computing & Communications (DCC) group
Network Simulation Testbed (Nest) version 2.3 Now Available
Nest is part of a collection of tools being developed at Columbia for the
design and analysis of large scale distributed systems. Nest allows rapid
prototyping of these systems by providing a simulated network environment in
which independent functions can easily be composed into distributed systems.
The simulated network can be modified while the system is running, allowing
performance tracing and measurement in a wide variety of simulated conditions,
including failures.
Nest implements this with a library that maintains a model of the simulated
network and multiplexes the independent functions within a single process. The
functions are associated with nodes in the network, and communicate with other
nodes through library facilities which can model many communication methods or
behaviors. This library also supports a user interface client which allows
runtime control and measurement of the simulated network.
The current release of Nest version 2.3 runs on Sun and Vax computers under
any 4.2bsd Unix derivative (including 4.3). The user interface client runs on
Suns with 2.0 or later release of SunView/SunWindows. Nest version 2.4 should
be ready by spring 1986, and will include an enhanced user interface client
with both SunView and X versions.
Nest is available to non-profit and educational institutions at no cost,
and at a nominal $100.00 support fee for others. Please contact Alexander
Dupuy or Jed Schwartz for details.
Alexander Dupuy Jed Schwartz
485 Computer Science Building 517 Computer Science Building
Columbia University Columbia University
New York City, N.Y. 10027 New York City, N.Y. 10027
(212) 280-8622 (212) 280-8192
arpa: dupuy@columbia.edu arpa: jed@cs.columbia.edu
uucp: seismo!columbia!dupuy uucp: seismo!columbia!cs!jed