Carlos Kamienski,  Tatiene Souza,  Stenio Fernandes,  Guthemberg Silvestre,  Djamel H. Sadok. 

Monitoring backbone traffic is a mandatory and vital task to the network management. Such task may be undertaken by either packet or flow measurements. Although modern routers offer monitoring tools for dealing with flow statistics (e.g. NetFlow), several problems still persist. The main difficulty for a proper measurement is the lack of scalability with respect to the link capacity. This work explores a statistical technique called stratified sampling as a powerful tool for deriving properties of the traffic at the flow level. Our results show that the selected samples are significant enough in order to allow further statistical analysis.

http://www.lbd.dcc.ufmg.br:8080/colecoes/sbrc/2005/063.pdf

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