Sending scheduling method of network node multi-service data

A technology of network nodes and scheduling methods, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve the problems of long scheduling time and destroying the timing relationship between data, etc., achieve short scheduling time, avoid timing confusion, and save scheduling the effect of time

Active Publication Date: 2016-04-13
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can realize the data sending and scheduling function, it has the disadvantages that the scheduling takes a long time and will destroy the timing relationship between data.

Method used

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  • Sending scheduling method of network node multi-service data
  • Sending scheduling method of network node multi-service data
  • Sending scheduling method of network node multi-service data

Examples

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Embodiment Construction

[0033] like figure 1 As shown, each bit of the send data enable register corresponds to a send data priority FIFO, and the corresponding FIFO is controlled by setting the value of each bit of the send data enable register; the send data priority FIFO group uses First-WordFall -Through type FIFO is used to store the priority of sending data, each of which corresponds to a type of sending data; the priority register group is a two-dimensional register group, each row corresponds to a priority, and each column corresponds to a Sending priority FIFO, when the sending priority FIFO corresponding to a certain type of data is valid, the corresponding element can be set to valid according to the priority; the priority request register is used to store the highest priority in the priority register group. The priority scheduling state machine controls the entire sending scheduling process; the R-R scheduler selects an element (representing the data that should be sent) from the input va...

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Abstract

The invention provides a sending scheduling method of network node multi-service data, for achieving the purposes of shortening scheduling time and ensuring sequential relations between data through single-stage scheduling. The realization process is as follows: 1, a sending data priority FIFO group stores priorities of sending data, wherein each FIFO is corresponding to one type of the sending data; 2, a priority register group, according to content of effective sending priority FIFOs, arranges the value of each element in the group; 3, effective rows with highest priorities in the priority register group are selected and are stored in a priority request register; and 4, by taking the priority request register as input, a scheduling result is obtained by use of an R-R scheduler and is written into a scheduling result FIFO, and at the same time, read-removal signals are emitted to corresponding sending data priority FIFOs. According to the invention, the scheduling time is short, fewer on-chip buffer memories are used, and the sequential relations between sending data is guaranteed to the maximum degree.

Description

technical field [0001] The invention relates to a sending scheduling method, in particular to a sending scheduling method of network node multi-service data. Background technique [0002] In the field of network communication, the transmission scheduling method determines key performances such as delay and timing relationship of data transmission. In the current network nodes, multi-service data transmission from different sources generally adopts a two-level scheduling method. First, a scheduling is performed in the data group of the same source, and the transmitted data is read into the on-chip cache corresponding to the source according to the scheduling result. Then schedule the data in the on-chip cache to obtain the final scheduling result. Although this method can realize the data sending and scheduling function, it has the disadvantages that the scheduling takes a long time and will destroy the timing relationship between the data. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): H04L12/865H04L12/863H04L47/6275
CPCH04L47/6215H04L47/6225H04L47/6245
Inventor 李大鹏蒲恺李玉发田园雷红常于敏
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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