Microsoft Technology Licensing, LLC

Vijay Gill

Deepak Bansal

Luyuan Fang

Fabio Chiussi

Ming Zhang

Srikanth Kandula

Ratul Mahajan

Gary Randall Ratterree

Jeff Cox

Nasser Elaawar

Chi-Yao Hong

Mohan Nanduri

Roger Peter Wattenhofer

Various techniques for migrating virtual entities via a label based underlay network is disclosed herein. In one embodiment, a method includes receiving packets associated with migrating a virtual machine from an originating network node of the underlay network to a target network node of the underlay network. The received packets individually include a label associated with a network path from the originating network node to the target network node in the underlay network. In response to receiving the packets, the method includes examining the labels of the packets to determine the network paths associated the labels and forwarding the packets following the determined network paths in the underlay network.

Virtual machine migration using label based underlay network forwarding

Various techniques for virtual entity migration in a computer network is disclosed herein. In one embodiment, a method includes receiving an indication to migrate a virtual machine in a virtual network from an originating network node of the underlay network to a target network node of the underlay network. The method also includes establishing a network tunnel in the underlay network from the originating network node to the target network node in response to receiving the indication to migrate the virtual machine. The method further includes migrating the virtual machine from the originating network node to the target network node following the established network tunnel in the underlay network while maintaining an address of the migrated virtual machine in the virtual network.

Method for virtual machine migration in computer networks

Various techniques for partitioning an overlay network is disclosed herein. In certain embodiments, an overlay network can be partitioned into overlay partitions with manageable sizes. Each overlay partition can independently manage and update reachability information only for end points that belong to a virtual network with at least one end point in the overlay partition. Thus, each overlay partition can operate independently from others to achieve fast reachability updating for relocated virtual machines or other end points.

Method for reachability management in computer networks

Greater network utilization is implemented through dynamic network reconfiguration and allocation of network services and resources based on the data to be transferred and the consumer transferring it. A hierarchical system is utilized whereby requests from lower layers are aggregated before being provided to upper layers, and allocations received from upper layers are distributed to lower layers. To maximize network utilization, paths through the network are reconfigured by identifying specific types of packets that are to be flagged in a specific manner, and then by further identifying specific routing rules to be applied in the transmission of such packets. Network reconfiguration is performed on an incremental basis to avoid overloading a path, and capacity can be reserved along one or more paths to prevent such overloading. Background data is agnostic as to specific transmission times and is utilized to prevent overloading due to reconfiguration.

SWAN: achieving high utilization in networks

Growing community of inventors

Bellevue, WA, United States of America

Vijay Gill