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SDN-based business chain topology system

A business chain and topology technology, applied in the field of communication, can solve the problems of too large maximum transmission unit, inconsistent technology and support, etc.

Active Publication Date: 2021-03-19
JIANGSU FUTURE NETWORKS INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is no standardized technology and process for both, the implementation technology and support of each manufacturer are not uniform, and the problem of excessive maximum transmission unit (MTU) is prone to occur based on tunnel drainage

Method used

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  • SDN-based business chain topology system
  • SDN-based business chain topology system
  • SDN-based business chain topology system

Examples

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Embodiment 1

[0061] This embodiment provides an application case of a service chain. At the data center or campus network egress, a data flow usually needs to pass through multiple network service devices, such as IDS / IPS, firewall, LB, etc., before finally reaching the destination. These network devices are the intermediate devices mentioned in this solution. In this solution, the external access traffic is imported into the intermediate device through the business chain orchestration method, so as to realize the network security protection business.

[0062] It can be seen from the above technical solutions that in the method and device for realizing service chain configuration of the present invention, the communication flow received by the flow terminal equipment and the intermediate equipment maintains the original format, which does not affect the existing network forwarding, and the traditional network forwarding and processing equipment can be directly connected to Integrating and...

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Abstract

The present invention relates to an SDN-based service chain arrangement method and a service chain topology structure. The arrangement method obtains the corresponding node information of the service flow path according to the current topology data on the basis of the user's demand for the service flow link to be instantiated. The communication flow table of the assembled service path is sent to the switching device passing through the path, and the switching device is instructed to modify the header content of the data packet for the specified data flow by establishing the service chain flow table, and forward the data to the corresponding device. The communication flow received by the flow terminal device and the intermediate device maintains the original format and does not affect the existing network forwarding. The traditional network forwarding and processing equipment can be directly integrated into the service chain and work together; the forwarding rules are generated by the controller and sent to the Switching equipment does not need to be configured on the switching equipment, and the network topology does not need to be changed when changing or adding or deleting service chains.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular, to a method for implementing service chain data flow scheduling in a software-defined network (Software Defined Network, SDN), and to a corresponding SDN controller. Background technique [0002] A service chain refers to a group of chains composed of network functions, that is, an ordered collection of a group of services, which can perform operations such as filtering, converting, and inspecting communication flows, thereby providing services such as firewalls, network address translation (NAT), and deep Network functions such as Packet Inspection (DPI). [0003] In recent years, with the development of cloud computing technology, there is a strong demand for dynamic orchestration, migration and programmability of value-added services in the cloud environment. In traditional data centers, value-added services are statically deployed at fixed locations, resulting i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L45/74
CPCH04L45/74
Inventor 黄韬魏亮周洪利檀朝红程智炜
Owner JIANGSU FUTURE NETWORKS INNOVATION
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