| This document will try to explain how flows (TCP
and/or UDP) interact between them when they share the same link and
are subjugated to different conditions. Because it is very difficult to make
tests using a real network, and also because the
ns-2 network simulator has
proved to be an excelent tool for simulating network behavior, we will use
this simulator for our tests. |
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It is very important to understand the inner behavior of
flows when they are competing for scarce network resources. This knowledge
will provide us with a better understanding of how flows fight for having an
space in the network and how this fight affects their performance. |
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| Let's start with this as soon as is possible, but
before, a warning: this is not, again, this is not an ns-2 tutorial
or something like an ns-2 tutorial. I haven't as a goal to explain
how to deal with ns-2. Go to the ns-2 site above to understand
how to use the tool. My goal is to concentrate our attention in flow
behavior when they compete for network resources. The tcl code
required to feed the ns-2 simulator is just presented, but not
discussed. Of course, if you catch me an error in the code, make me know
ASAP; I'm a human being and can be wrong. |
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| Having said this, let's begin our work. Just
below is an index: |
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