Multi-link transparent interconnection algorithm based on SDN

A technology of multi-link transparency and link status information, which is applied in the field of network communication, can solve the problems of slow convergence of time difference in synchronization, achieve smooth expansion, speed up convergence, and maintain simplicity

Active Publication Date: 2015-11-11
湖州帷幄知识产权运营有限公司
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Problems solved by technology

[0004] However, the shortest path tree algorithm of the TRILL protocol is calculated on each forwarding node, and there are problems of synchronization time difference and slow convergence

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  • Multi-link transparent interconnection algorithm based on SDN
  • Multi-link transparent interconnection algorithm based on SDN
  • Multi-link transparent interconnection algorithm based on SDN

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Embodiment Construction

[0034] 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.

[0035] 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 impleme...

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Abstract

The present invention provides a multi-link transparent interconnection method based on an SDN. The multi-link transparent interconnection method comprises the steps of (S1) an SDN controller senses the network topology structure of SDN TRILL according to an LLDP protocol, (S2) the SDN controller receives the link state information reported by SDN switches, (S3) the SDN controller calculates an equivalent route by using a shortest path tree algorithm, and (S4) the SDN controller issues a flow table to the SDN switches according to the calculation result of the equivalent route. According to the method, the method is based on an SDN frame, each SDN switch reports linkage state of the SDN switch to the SDN controller, the SDN controller carries out unified shortest path tree calculation and then issues the flow table to the SDN switches, thus the full network synchronization is achieved, and the convergence speed is fast.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a multi-link transparent interconnection method based on SDN (Software Defined Network, software defined network). Background technique [0002] The Spanning Tree Protocol (Spanning Tree Protocol, STP) can establish a tree topology in the network, eliminate loops in the network, and can achieve path redundancy through a certain method. However, although the STP protocol can simplify the management of the Layer 2 network, all redundant links do not perform data forwarding, resulting in a waste of bandwidth resources, and the path calculated by STP is not the optimal transmission path. [0003] In the prior art, the Transparent Interconnection of Lots of Links TRILL (Transparent Interconnection of Lots of Links TRILL) implements a "routing" behavior similar to a layer-3 IP in a layer-2 environment in order to get rid of the drawbacks of the traditional layer-2...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/721H04L12/26H04L12/753
CPCH04L43/06H04L45/48H04L45/66Y02D30/00
Inventor 翟跃
Owner 湖州帷幄知识产权运营有限公司
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