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Method for synchronous switching of source end and sinking end in traffic flow rerouting

A synchronous switching and routing technology, applied in the network field, can solve problems such as packet loss and inability to achieve hardware synchronization, and achieve the effect of making full use of network resources, easy to implement, and strong flexibility.

Inactive Publication Date: 2010-10-06
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this method, the configuration process of the source end and the sink end cannot be synchronized by hardware, so packet loss will occur during the process of switching the transmission path of the data stream

Method used

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  • Method for synchronous switching of source end and sinking end in traffic flow rerouting
  • Method for synchronous switching of source end and sinking end in traffic flow rerouting
  • Method for synchronous switching of source end and sinking end in traffic flow rerouting

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Embodiment Construction

[0016] The rerouting is mainly for the customer service flow carried in the transport network. For the currently widely used IP service, the data traffic from the customer network is sudden, random and unpredictable. Therefore, the transport network should It has the ability to adjust the corresponding bandwidth and even reroute it (establish a new transmission channel for it) according to the change of the service flow from the customer network, so as to realize the efficient utilization of bandwidth resources in the transmission network and provide services that meet customer requirements . Here, the edge node traffic monitoring module of the transport network is responsible for monitoring the service traffic from the customer network, and makes a request for rerouting to the transport network control plane according to the usage status of the path bandwidth resources that have been applied for; or based on UNI signaling , the UNI-C initiates a bandwidth adjustment request a...

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Abstract

The invention relates to a synchronization switching method for source end and host end in business flow route, wherein an expanse field domain MRI is defined in the present existing general purpose framing procedure (GFP). The invention also provides a method for realizing client service route hardware synchronization switching to frames composed thereby by utilizing the said expense, wherein the related instruction / network administration can be cooperated to guarantee the smooth transmission of business flow in the route procedure.

Description

technical field [0001] The invention belongs to the category of network technology, is a method for ensuring smooth rerouting of service flows in a transmission network, and is a technology applied to a new generation of transmission network that can dynamically provide adjustable bandwidth to customer services, ensuring customer service rerouting In the process, it is a method to achieve lossless transmission when the transmission channel mapping relationship is switched. Background technique [0002] Due to the suddenness, randomness, and unpredictability of traffic in today's widely used IP services, it is required that the transport network has the function of dynamically providing adjustable bandwidth to customer services. This requires the transport network to have the ability to reroute customer service flows (establish a new transport channel). The traditional implementation method is: after the network management unit or the control plane completes the application f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
Inventor 纪越峰高鹏
Owner BEIJING UNIV OF POSTS & TELECOMM