Method and device for switching virtual internet protocol address

A technology of Internet protocol and virtual switch, which is applied in the direction of instrumentation, calculation, electrical digital data processing, etc., and can solve problems such as the inability to use high-availability software and the impossibility of IP drift in cloud networks

CN108259629BActive Publication Date: 2021-07-23ALIBABA GRP HLDG LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-07-23

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Abstract

The present application discloses a method for switching virtual Internet Protocol addresses. The method is applied in a virtual IP system, and the virtual IP system includes: a control center, several physical machines connected to the control center through a cloud network, and the physical A virtual machine VM and a virtual switch connected to the VM are provided on the machine, and the method includes: sending the received first address resolution protocol ARP mapping message for mapping the virtual IP address to the VM address to the control center, to Make the control center determine the VM corresponding to the VM address as the master VM using the virtual IP address; send a notification message that the control center determines the master VM to the VM in the virtual IP system, so as to be connected with the VM in the virtual IP system Data associated with the virtual IP address is forwarded to the master VM. By applying the embodiment of the present application, it is not necessary for the user to control the active-standby relationship of the VM, and IP address drift on the cloud network can be realized.
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Description

technical field

[0001] The present application relates to the technical field of network communication, in particular to a method and device for switching virtual Internet protocol addresses. Background technique

[0002] In the physical network of the prior art, IP (Internet Protocol, Internet Protocol) address drift refers to that in a dual-machine backup environment, using a shared virtual IP address, the peer end cannot perceive the IP address of the local server during server switching. A technique where the address changes. In IP address drifting, the physical server can declare its own IP address through ARP (Address Resolution Protocol, Address Resolution Protocol), and use this IP address to provide services, limited by the number of ports on the physical server, usually the range of IP address drifting is not More than a hundred physical servers.

[0003] In the cloud network, the VIP (Virtual IP, virtual IP) address used by the physical machine is allocated and ...

Examples

Embodiment Construction

[0050] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0051] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second information may also be call...