Method and device for determining migration of virtual machines

A virtual machine and post-migration technology, applied in the field of communications, can solve problems such as the inability of the network to converge in a timely manner, the inability of the VTEP to quickly perceive the migration of the virtual machine, and the inability to confirm the migration of the virtual machine, so as to achieve accurate migration, accurate perception, and improved compatibility. Effect

Active Publication Date: 2018-03-09
HUAWEI TECH CO LTD
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Problems solved by technology

The RARP message only carries the media access control (English: Media Access Control, MAC) address of the virtual machine. In the prior art, the migrated VTEP cannot confirm the migration of the virtual machine according to the RARP message.
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  • Method and device for determining migration of virtual machines
  • Method and device for determining migration of virtual machines
  • Method and device for determining migration of virtual machines

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Embodiment Construction

[0038] The following will describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are part of the embodiments of the application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this application.

[0039] The application scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. Those of ordinary skill in the art know that with the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of...

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Abstract

An embodiment of the invention provides a method and a device for determining migration of virtual machines (VM). The method includes transmitting free ARP (address resolution protocol) messages or RARP (reverse address resolution protocol) messages to immigration VTEP [VXLAN (virtual extensible local area network) tunnel endpoint] equipment after the VM are migrated; acquiring MAC (media access control) addresses of the VM by the VTEP equipment, searching ARP Cache tables according to the MAC addresses and acquiring IP (internet protocol) addresses of the VM; constructing ARP unicast requestmessages by the aid of the IP addresses which are used as destination IP addresses, and determining that the VM are migrated if ARP response messages transmitted by the VM for the ARP unicast requestmessages are received by the VTEP equipment. The method and the device in the embodiment of the invention have the advantages that only the MAC addresses of the VM need to be acquired by the immigration equipment after the VM are migrated, and accordingly the fact that the VM are migrated can be determined; immigration of the VM can be sensed by the immigration equipment without constraints of thefree ARP messages transmitted by the virtual machines, and the virtual machine configuration compatibility can be effectively improved.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a method and device for determining virtual machine (English: Virtual Machine, VM) migration. Background technique [0002] In the multi-tenant environment of cloud computing, each tenant needs to allocate a logical network that can be well isolated from other logical networks. The isolation of logical networks can be achieved through Virtual Extensible Local Area Network (VXLAN) technology. to fulfill. The VXLAN network is identified by a 24-bit VXLAN network identifier (VXLAN network identifier, VNI). [0003] Generally, VXLAN will be deployed in the data center (English: Data Center, DC) network, and the VXLAN tunnel endpoint (English: VXLAN Tunnel Endpoint, VTEP) is responsible for the encapsulation and decapsulation of VXLAN packets. VTEPs communicate through VXLAN tunnels. [0004] With the extensive use of the server virtualization technology of the...

Claims

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Application Information

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IPC IPC(8): G06F9/455G06F9/48
CPCG06F9/45558G06F9/4856G06F2009/4557G06F9/4411G06F2009/45579G06F2009/45595H04L61/58H04L61/4552H04L2101/622H04L12/4633H04L12/4641H04L45/64H04L61/103
Inventor 高远孙兴国梁文辉
Owner HUAWEI TECH CO LTD
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