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			Message Sequence Chart generation
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Message Sequence Charts (MSCs) are a way of representing entities and
interactions to demonstrate how protocols operate between network elements.

The Access Stratum simulator generates MSC description file that can be
processed by the Python script msc_gen.py to generate a PNG (Portable
Network Graphic) file.

msc_gen.py use mscgen utility that is fully discribed at
http://www.mcternan.me.uk/mscgen/

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			How to generate MSC description file ?
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Redirect stderr stream to a file that will be used as input by the Python
script msc_gen.py:

ASprocess 2> ASprocess.msc

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			    How to generate PNG file ?
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Parse the MSC description file using the Python script msc_gen.py:

./msc_gen.py ASprocess.msc

Warning: msc_gen.py needs mscgen utility to be installed. mscgen is a C
program that uses the GD graphics library for PNG output.

