Abstract: A method includes identifying a middlebox receiving network flow and communicating with one or more backend virtual machines. The method also includes receiving flow statistics corresponding to the network flow of the middlebox and determining whether the flow statistics satisfy an offload rule. The offload rule indicates when to migrate the network flow from the middlebox to an end host. When the flow statistics satisfy the offload rule, the method also includes migrating the network flow from the middlebox to the end host.

Abstract: An Internet-telephone interface system is disclosed. The system provides a fully integrated system that permits the transfer of calls received over the Internet to the regular telephone net, and vice versa. Calls may be made via the regular telephone system or the Internet. The system includes an adapter for creating telephone signals based upon input signals, the adapter selectively coupling a microphone and speaker system with a telephone line and a computer using the created telephone signals based upon the source of the input signals. The input signals are from a telephone line and the adapter couples the microphone and speaker system to the telephone line. The input signals from the computer are signals from a sound device in the computer.