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A virtual machine migration method and device

A technology of virtual machine migration and virtual machine, applied in the field of communication, can solve the problems of SDN controller not being able to know VM pre-migration events in time, unable to guarantee VM migration timing, etc., so as to achieve the effect of migration timing guarantee

Active Publication Date: 2019-03-15
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a virtual machine migration method and device to solve the problem that the SDN controller in the Overlay SDN environment cannot guarantee the timing of VM migration because the SDN controller cannot be informed of the VM pre-migration event in time

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  • A virtual machine migration method and device
  • A virtual machine migration method and device
  • A virtual machine migration method and device

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Embodiment Construction

[0047] Please refer to figure 1, is a virtual network architecture diagram, in which the SDN controller manages the source-end Hypervisor and the target-end Hypervisor, as well as the source-end vSwitch and the target-end vSwitch. Hypervisor is usually used to manage and control virtual machines to provide computing services to users, and vSwitch in Hypervisor is used to provide network-related forwarding services to virtual machines. In the prior art, when a virtual machine in the source Hypervisor is to be migrated to the target Hypervisor, the Hypervisor controller managing the source Hypervisor needs to notify the SDN controller of the virtual machine pre-migration event. However, the Hypervisor manager usually manages multiple Hypervisors, and the business volume is large. If the Hypervisor manager fails to notify the SDN controller of the virtual machine pre-migration event in time, the SDN controller cannot be informed of the virtual machine pre-migration event in time,...

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Abstract

The invention provides a virtual machine migration method and apparatus. The method comprises the steps of receiving a port addition message sent by a target end virtual switch, and marking a migration state of a virtual machine corresponding to a port identifier in the port addition message as the starting of migration, wherein the port addition message carries the port identifier of a migrated virtual machine; receiving a port deletion message sent by a source end virtual switch, and marking the migration state of the virtual machine corresponding to the port identifier in the port deletion message as the termination of migration, wherein the port deletion message carries the port identifier of the migrated virtual machine; creating a new flow table for the virtual machine and sending the new flow table to the target end virtual switch; and sending a flow table deletion instruction to the source end virtual switch, wherein the flow table deletion instruction is used for deleting a flow table before the virtual machine is migrated in the source end virtual switch. Therefore, a migration time sequence of virtual machines can be guaranteed.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a virtual machine migration method and device. Background technique [0002] Currently, a hypervisor manager of a data center usually manages multiple hypervisors, and each hypervisor includes multiple VMs (Virtual Manufacturing, virtual machines). In the Overlay SDN environment, since the physical location of the VM has nothing to do with the overlay network to which it belongs, the VM network can be guaranteed not to change during VM migration. [0003] In the prior art, when a VM is migrated from a source physical machine to a target physical machine, the Hypervisor manager usually notifies the SDN controller of the pre-migration event of the VM, so that the SDN controller records the migration status of the VM. However, due to the many businesses of the Hypervisor manager, if the Hypervisor manager fails to notify the SDN controller of the VM pre-migrati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/48G06F9/455
Inventor 崔凯史磊牟彦
Owner NEW H3C TECH CO LTD