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A device for controlling preceded frame forwarding method

A forwarding method and frame control technology, which is applied in the field of telecommunication transmission, can solve problems such as high equipment complexity, low bandwidth utilization, and low reliability, and achieve the effects of improving utilization efficiency, improving reliability, and avoiding inaccuracy

Inactive Publication Date: 2006-11-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a method and a forwarding device for priority forwarding of control frames in order to solve the problems of high equipment complexity, low reliability and low bandwidth utilization in the prior art

Method used

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  • A device for controlling preceded frame forwarding method
  • A device for controlling preceded frame forwarding method
  • A device for controlling preceded frame forwarding method

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Embodiment Construction

[0010] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0011] figure 1 It is a flow chart of the data writing process in the method proposed by the present invention. Such as figure 1 As shown, the method for preferential forwarding of control frames proposed by the present invention includes the steps of: initializing the buffer storage area: including dividing the buffer storage area into two logical partitions, one for storing data frames and one for storing control frames. The data writing process includes: a. receiving data; b. judging whether the received data is a control frame; c. if so, writing to the control frame buffer storage area, and discarding the data if the control frame buffer storage area is full ; d. Otherwise, write to the data frame buffer storage area. If the data frame buffer storage area is full, discard the data; e. Re-execute step a.

[0012] figure 2 It is a flow ...

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PUM

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Abstract

The present invention discloses a method and a forwarding device for preferential forwarding of control frames. The method for preferential forwarding of control frames includes: initializing a buffer storage area; parallel data writing and data reading processes; the data writing process includes: a , receiving data; b, judging whether the received data is a control frame; c, if it is, then write the control frame buffer storage area, if it is full, then discard the data; d, otherwise write the data frame buffer storage area, If it is full, discard the data; e, re-execute step a. The readout process includes: f. judging whether there is data in the control frame buffer storage area; g. if so, reading all control frame outputs in the buffer storage area; h. re-executing step f after reading a data frame output. The control frame priority forwarding method proposed by the invention avoids the inaccuracy of physical bandwidth management, improves reliability, reduces equipment cost and complexity, and effectively improves the utilization efficiency of physical layer bandwidth.

Description

technical field [0001] The invention relates to the field of telecommunication transmission, in particular to a method and device for transmitting data services in a telecommunication transmission system. Background technique [0002] In recent years, the optical transmission system has occupied the dominant position in network physical layer transmission with its excellent transmission performance and competitive price. As a kind of equipment in the optical transmission system, SDH system has been widely used at home and abroad. [0003] The SDH system is essentially a time-division multiplexing system, which is very suitable for fixed-rate services. However, in recent years, the traffic of data services has grown very rapidly. In order to reduce the construction cost of the network, it has become a reality to develop the functions of data services on the original SDH system. The characteristic of data services is that the traffic is constantly changing, while the transmis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/26H04L29/02H04Q3/545
Inventor 李争齐
Owner ZTE CORP