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Virtual machine migration method and device and switch

A virtual machine migration and virtual machine technology, which is applied in the computer field, can solve problems such as business flow interruption, packet forwarding error, and inability to know virtual machine migration, etc., and achieve the effect of avoiding message forwarding error and business flow interruption

Pending Publication Date: 2021-11-26
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention provides a virtual machine migration method, device and switch to solve the problems in the prior art that the switch cannot know the migration of the virtual machine and cause packet forwarding errors and service flow interruption

Method used

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  • Virtual machine migration method and device and switch
  • Virtual machine migration method and device and switch
  • Virtual machine migration method and device and switch

Examples

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Embodiment Construction

[0039] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0040] As used in the present invention, the term "and / or" includes any and all combinations of one or more related listed items.

[0041] The terms used in the present invention are for describing specific embodiments only, and are not intended to limit the present invention. As used herein, the singular forms "a" and "the" are intended to include the plural unless the context clearly dictates otherwise.

[0042] When the terms "comprising" and / or "consisting of" are used in the present invention, it specifies the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more oth...

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PUM

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Abstract

The invention discloses a virtual machine migration method and device and a switch. The virtual machine migration method comprises the following steps: receiving a migration message sent by an immigration VTEP, wherein the migration message comprises an MAC address of the first virtual machine; searching a local MAC address table based on the MAC address of the first virtual machine; and under the condition that the MAC address of the first virtual machine exists in the local MAC address table entry, modifying the next hop in the MAC address table entry of the first virtual machine into an immigration VTEP, and meanwhile, sending an ARP request to the switch, so that the switch updates an output port of the MAC address of the first virtual machine. According to the method, message forwarding errors and service flow interruption caused by migration of the virtual machine can be avoided.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a virtual machine migration method, device and switch. Background technique [0002] Scalable Virtual Local Area Network (Virtual Extensible Local Area Network, VXLAN) is based on Internet Protocol (Internet Protocol, IP) network, using "Media Access Control Address (Media Access Control Address, MAC) in User Datagram Protocol (User Datagram Protocol, UDP)" encapsulation of the two-layer virtual private network (Virtual Private Network, VPN) technology. Based on the existing service provider or enterprise IP network, VXLAN can provide Layer 2 interconnection for dispersed physical sites and provide service isolation for different tenants. [0003] Virtual machine migration refers to migrating a virtual machine (Virtual Machine, VM) from the VXLAN Tunnel End Point (VXLAN Tunnel End Point, VTEP) or switching device it accesses to another VTEP or switching device in the data cent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/455
CPCG06F9/45558G06F2009/4557
Inventor 张余
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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