Abstract:
The present invention extends to methods, systems, and computer program products for offloading virtual machine flows to physical queues. A computer system executes one or more virtual machines, and programs a physical network device with one or more rules that manage network traffic for the virtual machines. The computer system also programs the network device to manage network traffic using the rules. In particular, the network device is programmed to determine availability of one or more physical queues at the network device that are usable for processing network flows for the virtual machines. The network device is also programmed to identify network flows for the virtual machines, including identifying characteristics of each network flow. The network device is also programmed to, based on the characteristics of the network flows and based on the rules, assign one or more of the network flows to at least one of the physical queues.
Abstract:
An extensible virtual switch allows virtual machines to communicate with one another and optionally with other physical devices via a network. The extensible virtual switch includes an extensibility protocol binding, allowing different extensions to be added to the extensible virtual switch. The extensible virtual switch also includes a miniport driver on which the extensions are loaded, tying the lifetimes of the extensions to the lifetime of the extensible virtual switch.
Abstract:
The ensuring of predictable and quantifiable networking performance. Embodiments of the invention combine a congestion free network core with a hypervisor based (i.e., edge-based) throttling design to help insure quantitative and invariable subscription bandwidth rates. A lightweight shim layer in a hypervisor can adaptively throttle the rate of VM-to-VM traffic flow.A receiving hypervisor can detect congestion and communicate back to sending hypervisors that rates are to be regulated. In response, sending hypervisors can reduce transmission rate to mitigate congestion at the receiving hypervisor. In some embodiments, the principles are extended to any message processors communicating over a congestion free network.
Abstract:
An extensible virtual switch allows virtual machines to communicate with one another and optionally with other physical devices via a network. The extensible virtual switch includes an extensibility protocol binding, allowing different extensions to be added to the extensible virtual switch. The extensible virtual switch also includes a miniport driver on which the extensions are loaded, tying the lifetimes of the extensions to the lifetime of the extensible virtual switch.