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Method and device for routing of data packet, router and SDN controller

A technology of data packets and controllers, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as SDN single-point controller processing bottlenecks, and achieve the goals of reducing single-point loads, improving network performance, and rational utilization Effect

Inactive Publication Date: 2017-06-23
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, usually in a small data center network, SDN controllers can be used centrally to implement network traffic allocation, but in a large wide area network, the processing of SDN single-point controllers may become a bottleneck

Method used

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  • Method and device for routing of data packet, router and SDN controller
  • Method and device for routing of data packet, router and SDN controller
  • Method and device for routing of data packet, router and SDN controller

Examples

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no. 1 example

[0056]According to an aspect of an embodiment of the present invention, a method for routing data packets is provided. In this method, firstly, obtain the data packets sent by the user; then, send the data packets with preset tags into the software-defined SDN network domain or send data packets without a preset mark into a non-SDN network domain for routing, wherein the SDN network domain and the non-SDN network domain are divided by the SDN controller according to the global network status information obtained in real time .

[0057] Therefore, the routing method of data packets in the embodiment of the present invention dynamically divides the network into SDN network domain and non-SDN network domain according to the global network state information, and only sends data packets with special requirements, that is, with preset marks, into SDN The network domain reduces the load on a single point of the network, makes reasonable use of network resources, and improves the over...

no. 2 example

[0069] According to another aspect of the embodiments of the present invention, there is also provided a method for routing data packets, the method first obtains global network status information in real time; then, divides the network into SDN network domains according to the global network status information and a non-SDN network domain, so that the ingress router sends a data packet with a preset mark to the SDN network domain or sends a data packet without a preset mark to the non-SDN network domain for routing.

[0070] In the routing method of data packets in the embodiment of the present invention, the SDN controller dynamically divides the network into SDN network domains and non-SDN network domains according to the global network state information obtained in real time, so that the ingress router can only have special requirements, that is, bring The data packets with preset marks are sent to the SDN network domain, which reduces the network single-point load, makes r...

no. 3 example

[0081] According to an aspect of the embodiments of the present invention, a routing device for data packets is provided, such as image 3 As shown, the device 300 includes:

[0082] The first acquiring module 301 is configured to acquire the data packet sent by the user;

[0083] A sending module 303, configured to send the data packet with a preset mark into a software-defined SDN network domain or send a data packet without a preset mark into a non-SDN network domain for routing;

[0084] Wherein, the SDN network domain and the non-SDN network domain are divided by the SDN controller according to global network state information acquired in real time.

[0085] Optionally, the idle resources of the SDN network domain are less than a first preset threshold, and the network bandwidth is less than a second preset threshold;

[0086] The idle resource of the non-SDN network domain is greater than the first preset threshold, or the network bandwidth is greater than the second p...

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Abstract

The invention provides a method and device for routing of a data packet, a router and an SDN controller. The method includes the following steps: obtaining a data packet sent by a user; and feeding the data packet with a preset mark into a Software Defined Network (SDN) domain or feeding the data packet without a preset mark into a non-SDN domain to be routed, wherein the SDN domain and the non-SDN domain are divided according to global network state information obtained in real time. According to the scheme provided by the invention, a network is dynamically divided into the SDN domain and the non-SDN domain according to the global network state information, only the data packet with special requirements, i.e., the data packet with the preset mark is sent into the SDN domain, the network single-point load is lightened, network resources are reasonably utilized, and the overall network performance is improved.

Description

technical field [0001] The invention relates to the technical field of wireless networks, in particular to a data packet routing method, device, router and SDN controller. Background technique [0002] Software Defined Network (SDN) builds flexible traffic scheduling by opening up network capabilities. In an SDN network, IP data packets usually go through a centralized SDN controller to make routing decisions. Since the SDN network has global network information, it can conveniently distribute network traffic evenly, thereby improving network resource utilization. Among them, Google uses SDN technology for traffic scheduling of its data center network, and has achieved a network link utilization rate of over 90%. [0003] However, the important core function of SDN network technology is to realize the allocation of network traffic through the centralized SDN controller. The performance bottleneck problem, that is, all traffic in the network will be routed from a single-poi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/927H04L12/851H04L47/80
CPCH04L47/2475H04L47/803
Inventor 吴滨
Owner CHINA MOBILE COMM GRP CO LTD