Real Traces for Training

For all our experiments, we used real network traces representing the total traffic collected from the ingoing and outgoing flows at the ``ENST de Bretagne (ENSTB)'', at Rennes, France during 6 months (starting from October 1999 to March 2001). The traces are sampled and averaged every 5 minutes. We show in Table 9.1 a portion of this data. As previously mentioned, other proposals used artificially generated traces by means of mathematical models or simulations which are easier to predict. Others used special kinds of traffic (MPEG) which has periodicity by nature due to the frame patterns IBBPBBPI..., which is easy to fetch for the NN. All these proposals works quite well for these special traces, but fail when used to test real traffics as shown in Section  9.4.

Table 9.1: Some entries from the ENSTB trace.

Sample number	Incoming traffic	Outgoing traffic	Total traffic
1	1580	1073	2653
2	2353	841	3194
3	3636	1523	5159
4	1600	1329	2929
5	303	965	1268
6	217	555	772
7	250	639	889
8	254	1188	1442
9	260	4434	4694
10	263	888	1151
...	...	...	...