VIRTUAL MACHINE MIGRATION TO MINIMIZE PACKET LOSS IN VIRTUALIZED NETWORK
First Claim
1. A method for controlling live migration of a virtual machine from a first host to a second host, comprising:
- determining, by a virtual machine manager, that the virtual machine will be migrated from the first host to the second host; and
sending, by the virtual machine manager to at least a third host in a virtual network including the virtual machine, an updated mapping policy that maps a customer address of the virtual machine to a provider address of the migrated virtual machine on the second host.
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Accused Products
Abstract
Methods and apparatus are provided for controlling live migration of a virtual machine from a first host to a second host in a data center. A virtual machine manager may distribute to at least one host in a virtual network an updated mapping policy that maps a customer address of the virtual machine to a provider address of the migrated virtual machine. The updated mapping policy enables hosts in the virtual network to communicate with the migrated virtual machine. The updated mapping policy can be a shadow policy. The shadow policy is transmitted to hosts in the virtual network by the virtual machine manager before live migration of the virtual machine completes and is maintained by recipient hosts in an inactive state until triggered. The virtual machine manager notifies hosts in the virtual network to activate the shadow policy when live migration completes.
158 Citations
20 Claims
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1. A method for controlling live migration of a virtual machine from a first host to a second host, comprising:
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determining, by a virtual machine manager, that the virtual machine will be migrated from the first host to the second host; and sending, by the virtual machine manager to at least a third host in a virtual network including the virtual machine, an updated mapping policy that maps a customer address of the virtual machine to a provider address of the migrated virtual machine on the second host. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13)
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10. A method for controlling live migration of a virtual machine from a first host to a second host, comprising:
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receiving, by a third host, a shadow mapping policy that maps a customer address of the virtual machine to a provider address of the migrated virtual machine on the second host; using, by the third host, a current mapping policy for communicating with the virtual machine until the shadow mapping policy is activated; and using, by the third host, the shadow mapping policy for communicating with the virtual machine after the shadow mapping policy is activated. - View Dependent Claims (11, 12, 14)
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15. A virtual machine manager for controlling live migration of a virtual machine from a first host to a second host in a data center, comprising:
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a processing device and a storage device encoded with instructions that, when executed by the processing device, are configured to; determine that the virtual machine will be migrated from the first host to the second host; and send to at least a third host in a virtual network including the virtual machine, an updated mapping policy that maps a customer address of the virtual machine to a provider address of the migrated virtual machine on the second host. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification