Priority scheduling unit and model and implementation method

Abstract

The invention discloses a priority scheduling unit and model and an implementation method, and relates to the field of network traffic management. Different types of nodes are taken as scheduling units for constructing a scheduling model; a model is selected according to a service priority to perform priority scheduling; on the basis of two-level scheduling of a queue and a port, scheduling nodeson a middle layer are added; eight-priority scheduling is realized through combination multiplexing and the like; scheduling parameters of the nodes are configurable; and meanwhile the expandability is taken into consideration to realize scheduling functions of queues, middle layers and ports. Through adoption of the priority scheduling unit and model and the implementation method, configuration of priority weights is realized on different nodes respectively; CIR (Commit Information Rate) and EIR (Excess Information Rate) functions are realized; the service demands of difference scenes are met; and scheduling resource waste is avoided.

Description

technical field [0001] The invention relates to the field of network flow management, in particular to a scheduling unit, a scheduling model and an implementation method of priority scheduling. Background technique [0002] With the rapid development of computer networks, more and more voices, images, and important data that are sensitive to bandwidth, delay, and jitter are transmitted on the Internet. In order to provide different promises and guarantees for data transmission performance, QoS (Quality of Service, Quality of Service) technology is widely used to ensure network transmission quality. [0003] In general, PTN (Packet Transport Network, Packet Transport Network) equipment provides 8 different business service levels, CS7, CS6, EF, AF4, AF3, AF2, AF1 and BE, in order to realize differentiated services for network services. Specific services provide the services they need, and obtain predictable service levels in terms of packet loss rate, delay, jitter, and band...

AI Technical Summary

Problems solved by technology

[0004] However, in practical applications, more complex scenarios are usually faced. For example, the transmission equipment of the backbone network needs to provide 8-priority scheduling based on VLAN and scheduling between multiple VLANs for multiple VLANs (Virtual Local Area Network, Virtual Local Area Network). Function, which needs to provide HQoS (Hierarchical Quality of Service, hierarchical quality of service) function to achieve multi-level QoS scheduling

[0005] At present, many PTN devices on the market do not fully support HQos functions. For example, the multi-level scheduling provided is a fixed three-level or five-level scheduling model, but when the actual application only requires two-level scheduling, the scheduling resources are there is serious waste

In addition, the port of the device can only be configured as a scheduling attribute of HQoS or QoS. In some specific scenarios, such as accessing a private network and a public network at the same time, and the public network usually needs to distinguish different service types such as voice and data, then Does not meet the scheduling conditions and cannot adapt to the business needs of different scenarios

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