Abstract:

The traditional traffic monitoring methods only analyze protocols below the transport layer, which can not identify the  P2P（Peer-to-Peer） applications. In order to address the issue, we discuss characteristics and application scenario of traffic monitoring methods such as  RMON(Remote Network Monitoring), xFlow and probe. A test has been made in the metro access layer, convergence layer, and MAN（Metropolitan Area Network） export by using probe and MAN traffic distribution models are achieved and analyzed. The results show that it is validity to monitor traffic by using probes.

Key words: metropolitan area network（MAN）, traffic monitoring, traffic model