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[ns] ns-2 FAQ
UCB/LBNL Network Simulator: Frequently Asked Questions
* _Where do I get ns?_
From the ns web site at http://www-mash.cs.berkeley.edu/ns/ns.html
and the download page
http://www-mash.cs.berkeley.edu/ns/ns-tests.html.
* _What platforms does ns run on and what kind of hardware do I
need?_
Please see "where to start" on the building ns web page:
http://www-mash.cs.berkeley.edu/ns/ns-build.html#start.
* _What to do if you have trouble downloading/extracting ns?_
This is answered in detail at
http://www-mash.cs.berkeley.edu/ns/ns-problems.html#downloading.
* _What to do if you encounter problems building ns?_
Check:
1. the README that comes in the distribution (very brief),
2. the installation problems, bug fixes and help web page
http://www-mash.cs.berkeley.edu/ns/ns-problems.html,
3. the archives of the ns-users mailing list
http://www-mash.cs.berkeley.edu/dist/archive/ns-users/,
4. post a question to the mailing list (see below).
* _Where can I find documentation for ns?_
All documentation is linked off the main ns web page
http://www-mash.cs.berkeley.edu/ns/ns.html. Documentation includes
a tutorial (originally from Marc Greis) and a reference manual (ns
notes and documentation). There are also a large number of sample
scripts included in the ns distribution in ~ns-2/tcl/ex and
~ns-2/tcl/test.
* _What protocols does ns support?_
A lot! Almost all variants of TCP, several forms of multicast,
several ad hoc routing protocols and propagation models, and other
stuff. See the documentation (described above) for details, or
download ns and look.
* _How do I know that ns correctly implements these protocols?_
Ns has a validation tests that cover many protocols, see
http://www-mash.cs.berkeley.edu/ns/ns-tests.html. However,
ultimately users are responsible for verifying that ns is accurate
for their purposes---since we cannot foresee all the ways ns may
be used, we cannot test all cases with all inputs.
* _Are there any contributed/additional protocols not in the main
distribution?_
Yes, please see the contributed code web page
http://www-mash.cs.berkeley.edu/ns/ns-contributed.html. The
mailing list archives can also be helpful (see below).
* _How should I get started doing something (implementing a new
protocol, trying an experiment)?_
We recommend that you look through the tutorial (see
documentation, above), then start with an example program that is
most similar to yours (in the tutorial, or in tcl/ex or tcl/test
in the distribution), and then start changing things.
* _What if I have a question that's not answered here?_
If you've checked the installation problems and bug fixes web page
(http://www-mash.cs.berkeley.edu/ns/ns-problems.html) and there's
no answer to your question, you may want to post a question to the
ns-user's mailing list.
First, you should check the archive of the list at
http://www-mash.cs.berkeley.edu/dist/archive/ns-users/. Your
question may already be answered there.
If not, you may wish to post to the list. First you should
subscribe. Subscription instructions are at
http://www-mash.cs.berkeley.edu/ns/ns-lists.html.
A reminder about mailing list ettiqute:
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your question.
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