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Data forwarding method, controller, forwarding device and system

A forwarding device and forwarding method technology, applied in the field of network communication, can solve problems such as inability to control service flow

Active Publication Date: 2013-10-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem in the prior art that after the controller determines the forwarding path of a service flow, it cannot further control the service flow, the embodiment of the present invention provides a data forwarding method, a controller, a forwarding device and a system

Method used

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  • Data forwarding method, controller, forwarding device and system
  • Data forwarding method, controller, forwarding device and system

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Embodiment Construction

[0117] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0118] See figure 2 , which shows a method flowchart of a data forwarding method provided by an embodiment of the present invention. The data forwarding method may include:

[0119] 101. Receive overloaded link port information sent by a forwarding device, where the overloaded link port information includes an identification of a port whose link load on the forwarding device exceeds a preset adjustment threshold;

[0120] 102. Query the service flow with the largest flow on the port according to the identification of the port exceeding the preset adjustment threshold;

[0121] 103. Generate a new forwarding path for the service flow;

[0122] 104. Generate new forwarding flow tables for the service flow for forwarding devices on th...

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Abstract

The invention discloses a data forwarding method, controller, forwarding device and system, and belongs to the field of computers. The data forwarding method comprises the steps that overload link port information sent by the forwarding device is received; a service flow, with biggest flow, in a port is queried according to identification, of the port, contained in the overload link port information; a new forwarding path is generated for the service flow; a new forwarding flow table of the service flow is generated for the forwarding device on the new forwarding path; the new forwarding flow table is sent to the corresponding forwarding device. Due to the facts that the service flow, with biggest flow, in a port is queried according to identification, of the port, contained in the received overload link port information, and the new forwarding path is generated for the service flow, the problem that a service flow cannot be further controlled after a controller confirms a forwarding path of the service flow is solved, and the purposes that flow distribution is optimized in real time, and then network forwarding performance is improved are achieved.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a data forwarding method, controller, forwarding device and system. Background technique [0002] OpenFlow (Open Flow) is a new flow-based network forwarding model, which aims to solve various bottlenecks in the current network facing new services based on the existing TCP / IP technical conditions. Its core idea is to break the original completely by forwarding The device is responsible for the situation of the control and forwarding process, and the control and forwarding process is performed by the controller and the forwarding device respectively. Among them, the controller is responsible for centralized control of the network, while the forwarding device is only responsible for forwarding. [0003] In the existing OpenFlow network data forwarding method, each forwarding device has a device identifier unique to the entire network. After the controller determines the forwar...

Claims

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Application Information

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IPC IPC(8): H04L12/801
Inventor 董雯霞倪辉郝卫国吴小前
Owner HUAWEI TECH CO LTD
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