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SDN(software defined networking)-based link aggregation method

A link aggregation and link technology, applied in the field of network communication, can solve problems such as the inability to maximize the utilization of network resources, and achieve the effect of load sharing

Active Publication Date: 2015-09-16
湖州帷幄知识产权运营有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, multiple physical ports must belong to the same switch, so the maximum utilization of network resources cannot be achieved

Method used

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  • SDN(software defined networking)-based link aggregation method
  • SDN(software defined networking)-based link aggregation method
  • SDN(software defined networking)-based link aggregation method

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Embodiment Construction

[0055] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0056]It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implemen...

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Abstract

The invention provides an SDN(software defined networking)-based link aggregation method. The SDN(software defined networking)-based link aggregation method includes the following steps that: an SDN controller senses the network topology structure of an SDN, and receives link state information reported by an SDN switch; aggregation groups and member ports are calculated according to the link state information and the network topology structure; load balance is calculated, and a flow table is issued; and a first message is forwarded, so that the SDN switch can quickly forward data according to the content of the flow table. With the SDN-based link aggregation method of the invention, the network topology structure of the whole network can be obtained through the SDN controller according to the LLDP (link layer discovery protocol), and when finding that a certain message has a plurality of links with consistent attributes when the message passes through the SDN, the SDN controller selects an optimal link based on a certain strategy intelligently and forwards the optimal link, and therefore, load sharing can be realized dynamically; and the SDN controller can also select a link dynamically again and forward the link when the optimal link malfunctions.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a link aggregation method based on SDN (Software Defined Network, software defined network). Background technique [0002] With the wide application of Ethernet technology in the field of MAN and WAN, operators have higher and higher requirements for the bandwidth and reliability of backbone links using Ethernet technology. In the prior art, a common way to increase the bandwidth is to replace a high-rate interface board or a device supporting the high-rate interface board. However, this solution requires high costs and is not flexible enough. Using the link aggregation technology, the link bandwidth can be increased by bundling multiple physical interfaces into one logical interface without hardware upgrade. While achieving the purpose of increasing the bandwidth, link aggregation adopts the mechanism of backup links, which can effectively improve the rel...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/751H04L12/803H04L45/02
CPCH04L45/02H04L45/245H04L47/125Y02D30/00
Inventor 翟跃
Owner 湖州帷幄知识产权运营有限公司
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