FILE		DESCRIPTION
----		-----------
channels.c	contains functions for transferring packets on a channel
config.h	main simulation configuration file 
fuzzy.c		fuzzy prediction code
hash.c		simple-minded hashing
init.c		initialization code
monitor.c	simulation monitor (main for data collection)
node_queue.c	queueing functions used by sources for transmission queues
parameters.h	standard include file
plotting.c	functions for plotting data
real.h		standard header file - includes all other header files
reliablenest.c	for sending a message from a node (implements set_timer)
routing.c	static route computation
sim.c		main simulation program - does option processing
switches.c	hack to allow quick debugging
symtab.c	symbol table manipulation routines
table.c		collects statistics and pretty prints it out
types.h		type declaraions, notably PKT and PKT_PTR
