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MANAGEMENT SOFTWARE FOR SDNs
© 2010 Taylor & Francis Group, LLC
the controller can configure the forwarding rules in the switches or
configure a drop rule to that flow. is could be used to filter IP and
MAC addresses, as well as applications, based on the TCP port.
Content-based filtering can also be performed by using middle
boxes. In this case, the controller would forward the suspect flows to
a middle box. is middle box would run any traffic filtering applica-
tion, such as IPtables, to verify the packet content. Afterward, the
middle box could deliver the packet to an OpenFlow switch or drop
the packet.
OpenFlow-Based Testbeds
OpenFlow-based testbeds ...