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Message sending scheduling method and device and asynchronous traffic shaper

A technology of message sending and scheduling method, applied in the direction of transmission system, electrical components, etc., can solve problems such as long dwell time, difficult system control, confusion, etc.

Pending Publication Date: 2022-01-21
KUNGAO XINXIN MICROELECTRONICS (JIANGSU) CO LTD
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AI Technical Summary

Problems solved by technology

[0008] The specified sending time may cause the actual sent message to stay longer than the specified maximum dwell time, making system control difficult and confusing

Method used

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  • Message sending scheduling method and device and asynchronous traffic shaper
  • Message sending scheduling method and device and asynchronous traffic shaper
  • Message sending scheduling method and device and asynchronous traffic shaper

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Embodiment Construction

[0030] The present invention is an asynchronous traffic shaping technology, more specifically a data flow shaping method based on the IEEE802.1Qcr standard, which provides a better shaping effect for asynchronous data streams than the original standard, and prevents the actual residence time of the message from being longer than the system specified The maximum dwell time of the system simplifies the difficulty of system control.

[0031] The technical solutions of the present invention will be further described below in conjunction with specific examples, but the present invention is not limited to these examples.

[0032] The asynchronous traffic shaper of the present invention comprises an eligibilityTime calculation module, which is used to calculate the eligibilityTime of the message; an assignedEligibilityTime calculation module, which is used to calculate the assignedEligibilityTime of the message; a residence time comparison module, which is used to compare whether the ...

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Abstract

The invention provides a message sending scheduling method and device and an asynchronous traffic shaper. The message sending scheduling method comprises the following steps: S1, based on an IEEE802.1Qcr standard, calculating the sending time eligibilityTime of a message; S2, judging whether the eligibilityTime of the message meets the set maximum residence time or not by judging whether eligibilityTime+ProcessingDelayMax is less than or equal to arrivalTime+MaxResidenceTime or not, wherein ProcessingDelayMax is the maximum processing delay, arrivalTime is the message arrival time, and MaxResidenceTime is the maximum residence time; if the eligibilityTime of the message meets the set maximum residence time, carrying out the step S3, otherwise, discarding the message; S3, on the basis of the IEEE802.1Qcr standard, updating the state data of the ATS shaper, and then executing the step S4; S4, on the basis of the IEEE802.1Qcr standard, the assignedEligibilityTime of the message is calculated. According to the invention, all the sendable messages processed by the asynchronous traffic shaper can conform to the limit of the maximum residence time specified by the system, the control effect of the network system is optimized, and the management difficulty of the system is simplified.

Description

technical field [0001] The invention relates to the field of Ethernet time-sensitive networks, in particular to a message sending scheduling method and device, and an asynchronous traffic shaper. Background technique [0002] IEEE802.1Qcr introduces the technical solution of Asynchronous Traffic Shaping (Asynchronous Traffic Shaping), which arranges the sending time of non-periodic time-sensitive data streams according to the predetermined bandwidth. and the scheduled bandwidth of the data stream to calculate the time for sending the message. In this way, the packet forwarding speed meets the bandwidth control requirements. [0003] The asynchronous traffic shaper (ATS) has a corresponding maximum residence time (MaxResidenceTime), and the maximum sending time of a packet is the packet arrival time (arrivalTime) plus the maximum residence time. [0004] Maximum sending time = arrivalTime + MaxResidenceTime [0005] When the calculated message sending time (eligibilityTime...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L47/22
CPCH04L47/22
Inventor 李占斌刘端
Owner KUNGAO XINXIN MICROELECTRONICS (JIANGSU) CO LTD
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