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Data transmission method and system

A data transmission method and corresponding relationship technology, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve problems such as consuming server manufacturers' application for address pools, virtual server business abnormalities, and problems

Active Publication Date: 2013-02-27
XINHUASAN INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the MAC address space of the Layer 3 switch cannot meet the requirements of a large number of ARP learning, there will be problems with the destination MAC address of the IP packet encapsulated in the Layer 3 packet, which will lead to abnormal server services
[0006] In addition, since each virtual server needs to apply for a MAC address separately, this will also consume the application address pool of the server manufacturer or the MAC address established and allocated by the enterprise.

Method used

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  • Data transmission method and system
  • Data transmission method and system

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Embodiment Construction

[0044] In order to better understand the technical solutions provided by the embodiments of the present invention, the following briefly describes the process of layer-2 forwarding and layer-3 forwarding of virtual server packets in the network in the prior art.

[0045] see figure 1 , in the existing virtualization operating environment, the virtual switch on the physical server provides the communication capability between the virtual servers and between the virtual servers and the external network.

[0046] The system creates a virtual network card for each virtual server, and the virtual network card of each virtual server corresponds to a logical port of the virtual switch on the physical server, and the physical network card of the physical server corresponds to the port connecting the virtual switch and the switching network device. The virtual switch stores a MAC entry that records the correspondence between the MAC address of the virtual server and the logical port of...

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Abstract

The invention discloses a data transmission method and a data transmission system. The data transmission method comprises the following steps: when an MAC (media access control) agency module receives a message forwarded by a virtual switch, replacing a source MAC address in the message with a corresponding MAC address by the MAC agency module; forwarding the message in which the source MAC address is replaced to switching network equipment by the MAC agency module, and processing the message by the switching network equipment; when the MAC agency module receives the message forwarded by the switching network equipment, replacing a target MAC address in the message with a corresponding interior MAC address by the MAC agency module; and forwarding the message in which the target MAC address is replaced to the virtual switch by the MAC agency module, and forwarding the message to a target virtual server by the virtual switch. By the data transmission method, the consumption of the MAC address is reduced, system resources are saved, and the MAC address learning load of the switching network equipment is reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method and system. Background technique [0002] With the continuous deepening of enterprise information construction and the development of data center construction, there are more and more various basic application systems, and various design data need more and more high-performance computer equipment to process. The use, management and operation of a large number of devices has gradually become an important part of the business support platform. Server virtualization technology can virtualize resources such as the CPU (Central Processing Unit, central processing unit), memory, equipment, and I / O of a physical server, and virtualize a physical server into several virtual servers. It has independent memory space, independent virtual network card, independent virtual CPU and runs independent operating system without interfering with each other. Each device ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/773H04L45/74
Inventor 李彬荣刘如冰
Owner XINHUASAN INFORMATION TECH CO LTD
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