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Data transferring method based on flow table

A technology of data transmission and flow table, applied in the field of data transmission, can solve problems such as difficulties, achieve the effect of overcoming traffic bottlenecks and promoting maximum efficiency

Active Publication Date: 2018-07-24
CHINA UNIONPAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is still difficult to accurately send external data packets back to the corresponding local virtual machines (V1-V6) that do not have floating IPs via nodes (node ​​1, 2) and then via subnets (Net1, Net2)

Method used

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  • Data transferring method based on flow table
  • Data transferring method based on flow table
  • Data transferring method based on flow table

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Embodiment Construction

[0027] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without these specific details. In the present invention, specific numerical references such as "first element", "second means" and the like may be made. However, specific numerical references should not be construed as necessarily obeying their literal order, but rather that "first element" is different from "second element".

[0028] The specific details set forth herein are exemplary only, and the specific details may vary while remaining within the spirit and scope of the invention. The term "coupled" is defined to mean either directly connected to a component or indirectly connected to a component via another component.

[0029] Preferred embodiments of methods, systems and devices adapted to implement the present invention are ...

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Abstract

The invention relates to a data transferring method based on a flow table. The method comprises the steps as follows: the flow table is distributed to a first virtual switch, so that an external interface corresponding to the first virtual switch is configured to receive an ARP request from an external device; the first virtual switch generates a corresponding ARP response to the ARP request basedon the flow table; the external interface receives a data packet from the external device; the condition that a target virtual machine of the data packet is positioned in a physical machine corresponding to a first node; if the target virtual machine is positioned in the physical machine corresponding to a second node different from the first node, the first virtual switch forwards the data packet to a second virtual switch. According to the method provided by the invention, the bidirectional transferring of the data packet between each terminal and the external device can be reliably and efficiently achieved, and the distributed routing communication scheme can work furthest.

Description

technical field [0001] The present invention relates to the technical field of data transmission, and more specifically, relates to a data transmission method based on a flow table. Background technique [0002] A router (Router) is used to connect multiple logically separated networks. The so-called logical network represents a separate network or a subnet. When data is transferred from one subnet to another, it can be done through the router's routing function. Such as figure 1 shown. [0003] Communication between computers on different subnets must be done through a router. In the network implementation of software SDN, the routing function is realized through the mechanism of software, which can be divided into two forms: centralized routing and distributed routing. [0004] (1) Centralized routing [0005] In the centralized routing mechanism, east-west traffic (traffic between different networks) and north-south traffic (traffic between the internal network and t...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/911H04L29/12
CPCH04L45/44H04L47/825H04L61/103
Inventor 袁航周雍恺吴金坛祖立军何东杰
Owner CHINA UNIONPAY
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