Transmission path control method based on time delay, network controller and system

Abstract

The invention discloses a transmission path control method based on time delay, a network controller and a system. The application provides a transmission path control method, device and system basedon time delay. The method includes the following steps: acquiring the equipment time delay of each network node equipment on a primary transmission path and a standby transmission path, acquiring thelink time delay between each network node equipment, and calculating the time delay of the primary transmission path and the time delay of the standby transmission path based on the respective equipment time delay and link time delay; and then, based on a switching mechanism of time delay decisions, when the time delay of the primary transmission path is greater than a switching threshold and thetime delay of the standby transmission path is less than the switching threshold, generating a primary and standby path switching command, and switching a message from the primary transmission path tothe standby transmission path for transmission based on the primary and standby path switching command. Thereby, the scheme of the invention can provide protection for the transmission path of time delay sensitive services and ensure the service requirements of the service transmission path for the time delay.

Description

technical field [0001] The present application relates to the technical field of communications, and more specifically, to a delay-based transmission path control method, network controller and system. Background technique [0002] With the advancement of research on the fifth generation (5th Generation, 5G) communication technology and the development of delay-sensitive services such as virtual reality and autonomous driving, higher and stricter requirements are put forward for the network delay of routing, forwarding and transmission. Requirements, especially for the serviceability, availability and reliability of the delay performance, also put forward new requirements. [0003] In existing applications, when a high-reliability and low-latency service is deployed between two network node devices, there is no method in the prior art to monitor the service delay and reliability of the service level agreement (Service Level Agreement, SLA) in real time. ) satisfaction, SLA ...

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Problems solved by technology

[0003] In existing applications, when a high-reliability and low-latency service is deployed between two network node devices, there is no method in the prior art to monitor the service delay and reliability of the service level agreement (Service Level Agreement, SLA) in real time. ) satisfaction, SLA usually considers the end-to-end quality in the service transmission process, and the network performance parameters related to the SLA satisfaction test include delay, delay jitter and delay reliability, etc. When the delay related to SLA occurs When degraded, there is no method in the prior art to ensure the service requirements of the service transmission path for delay

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