Abstract: In cloud computing, for various reasons such as load-balancing, hotspot elimination, server consolidation, energy and cost savings, and system maintenance, there is a need to migrate a virtual sub-network of virtual entities from a source network of servers to a destination set of servers. Existing migration methods are limited to the migration of VM memory and controller states, where network entities are migrated individually. Embodiments of this disclosure include systems and methods for the stateful live migration of a multi-layer network, while maintaining live state convergence and consistency, and preventing network connection losses, packet disordering and packet drops.

Abstract: There is provided methods and devices for network management. A method includes receiving at least one data flow, transmitting in-band management packet periodically for each of the at least one data flow, receiving in-band acknowledgement packets for each of the at least one data flow, and producing network management data based on received in-band acknowledgement packets. A device includes a processor, and a non-transient computer readable memory having stored thereon machine executable instructions which when executed by the processor configure the device to execute the methods disclosed herein. A system includes a source node, a receiver and a data-plane device, the system configured to execute the methods disclosed herein.

Abstract: There is provided methods and devices for network management. A method includes receiving at least one data flow, transmitting in-band management packet periodically for each of the at least one data flow, receiving in-band acknowledgement packets for each of the at least one data flow, and producing network management data based on received in-band acknowledgement packets. A device includes a processor, and a non-transient computer readable memory having stored thereon machine executable instructions which when executed by the processor configure the device to execute the methods disclosed herein. A system includes a source node, a receiver and a data-plane device, the system configured to execute the methods disclosed herein.