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README
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1993-10-29
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Fri Oct 29 12:56:41 PDT 1993
This is a program to help debug multicast routing. It was written
by Deborah Agarwal (deb@nu.ece.ucsb.edu) while working as a summer
intern at LBL. This is an offline debugging tool. It takes as
input two files - one giving the multicast topology (normally the
output of `mrmap') and one giving the subnets known to multicast
routing (normally the /usr/tmp/mrouted.dump file procduced by a
"kill -USR1" to mrouted). Mrdebug uses these two files to construct
a global picture of the mbone which you can then interactively query
to determine distribution path(s) from a source to a destination,
the entire distribution tree from some source, the metric needed
to reach some destination, etc. You can also interactively modify
the topology (tunnels, metrics, threshholds, etc.) to do "what if"
examinations of proposed changes.
Example topology and subnet files are in subdirectory example/
(these reflect an mbone map believed to be accurate as of 8pm,
Thurs. Oct 28). A manual entry for mrdebug is mrdebug.man.
The draft of a paper describing mrdebug is mrdebug.ACM94.ps.
We are very interested in hearing about problems with mrdebug or
suggestions for improvements. Please send bug reports, problems,
suggestions, etc., to mrdebug@ee.lbl.gov. Thanks. Good luck.
- Deb Agarwal & Van Jacobson