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Distributed network control method and device

A distributed network and distributed controller technology, applied in the field of computer networks, can solve the problem that the solution is not suitable for large-scale network deployment, and achieve the effect of solving performance bottlenecks

Active Publication Date: 2012-07-18
ZTE CORP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

For a large-scale network, tens of thousands of network events per second need to be synchronized between network controllers in the above solution, and the existing global event synchronization mechanism cannot meet the demand, that is, the existing solution is not suitable for large-scale network deployment

Method used

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  • Distributed network control method and device
  • Distributed network control method and device

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Embodiment Construction

[0033] The basic idea of ​​the present invention is: the controller node receives the information reported by the switch, synchronizes the network topology change information among all the controller nodes, and saves the host location information in the distributed control network; the controller node When a data flow processing request is received, the destination address information of the data flow is queried in the distributed controller network, and a data exchange path is established for the data flow according to the locally stored global network topology information.

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] The invention provides a distributed network control method, figure 1 It is a schematic flow diagram of the present invention to realize the distributed network control method, such as figure 1 As shown, the method includes the following steps:

[0036] S...

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Abstract

The invention discloses a distributed network control method. A plurality of controller nodes form a distributed controller network, and each controller node manages one or more pieces of switch equipment. The method comprises the following steps that: the controller node receives information reported by a switch, synchronizes network topology change information in the information among all the controller nodes, and stores host position information in the information into a distributed control network; and when receiving a data stream processing request, the controller node queries the destination address information of a data stream from the distributed controller network, and establishes a data exchange path for the data stream according to locally stored global network topology information. The invention also provides a distributed network control device. According to the technical scheme, the problem of performance bottleneck of a network controller can be solved.

Description

technical field [0001] The invention relates to the field of computer networks, in particular to a distributed network control method and device. Background technique [0002] Stanford University in the United States proposed the OpenFlow protocol in 2008. This protocol adopts a forwarding / control separation architecture. The external control plane entity uses the OpenFlow protocol to control the forwarding plane equipment to realize various forwarding logics. The forwarding flow table issued by the plane entity performs controlled forwarding, and its behavior is standardized: the forwarding plane device receives a message, takes out the L2 / L3 / L4 related field values ​​of the message header, and uses these related field values ​​as the key Search the forwarding flow table by word, after matching the entry, transform the message field according to the instruction set in the entry content, and forward it to a certain logical or physical port according to the instruction after ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/08H04L29/12H04L12/721
CPCH04L29/08H04L29/12H04L12/26H04L41/044H04L41/12
Inventor 胡永生汪军李漓春
Owner ZTE CORP
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