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Intelligent scheduling and control implementation method for deterministic time delay service

A business intelligence and deterministic technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as unfriendly long-distance links, and achieve the effect of copying and eliminating, improving transmission performance, and reliable transmission

Pending Publication Date: 2020-07-17
汪勤思
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Problems solved by technology

This limitation is not friendly to long-distance links in large-scale networks

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  • Intelligent scheduling and control implementation method for deterministic time delay service
  • Intelligent scheduling and control implementation method for deterministic time delay service
  • Intelligent scheduling and control implementation method for deterministic time delay service

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] The present invention is aimed at a deterministic delay service scheduling and control implementation method for network equipment in a deterministic network. In the method, each router control plane in the network notifies the deterministic delay service parameters to the routers on the transmission path and Deliver relevant parameters to the forwarding plane, and the forwarding plane forwards according to the delivered parameters. During transmission, the forwarding of routers in the network is divided into transmission cycles (such as 200ns) according to time. Within a fixed time slice (such as 10ns) of the transmission cycle, deterministic delay services are forwarded based on time slice round-robin scheduling.

[0028] refer to figure 1 It is a schematic diagram of the implementation of deterministic delay service schedul...

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Abstract

The invention provides an intelligent scheduling and control implementation method for deterministic time delay service, and aims to solve the problems that a conventional network cannot realize deterministic time delay service transmission and cannot meet the requirements of cooperative application on the upper bound of deterministic time delay jitter. According to the method, a time delay service and an end-to-end time delay demand are determined through configuration of a forwarding equipment management plane in a network, an identifier and timestamp information of a deterministic time delay service during transmission are defined, a network node selects a forwarding path and a sending time slice for the deterministic service based on the time delay demand and a clock stamp, and end-to-end deterministic time delay is realized. The network node adjusts the number of forwarding queues and scheduling period parameters according to the forwarding condition of the deterministic time delay service, adapts to the transmission of the deterministic time delay service, and improves the overall transmission performance. Besides, a reliable and sequential transmission mechanism for the determined time delay service is realized through the serial number of the data packet, reliable transmission is realized through packet-by-packet confirmation, packet loss and overtime feedback mechanisms, and the copy and elimination of the deterministic time delay service are realized.

Description

technical field [0001] The invention relates to the technical field of network service transmission in communication, in particular to realizing deterministic time-delay service transmission through a router and providing dynamic transmission capacity adjustment in network transmission. Background technique [0002] With the deployment of 5G, network bandwidth is no longer the bottleneck, and a large number of collaborative business applications (such as industrial Internet, 5G slicing, etc.) require the guarantee of the worst delay or delay jitter, that is, deterministic delay. Deterministic latency is the premise of a collaborative or scheduling system, and each functional module should perform the correct action at the correct moment. With the increasingly complex business, such as stock trading, power grid relay protection, online games, cloud PLC, telemedicine and other scenarios, the network must not only provide "timely" services, but also "on time". [0003] A deter...

Claims

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Application Information

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IPC IPC(8): H04L12/875H04L12/823H04L47/56H04L47/32
CPCH04L47/56H04L47/32
Inventor 汪勤思
Owner 汪勤思
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