A scheduling unit, scheduling model and implementation method of priority scheduling

Abstract

A scheduling unit, scheduling model and implementation method of priority scheduling, related to the field of network traffic management, establishing different types of nodes as scheduling units, and then forming a scheduling model, performing priority scheduling according to the business priority selection model, between queues and ports On the basis of high-level scheduling, add middle-level scheduling nodes, realize 8-priority scheduling through combination multiplexing, etc., the scheduling parameters of each node can be configured, and consider scalability to achieve scheduling at each level of queue, middle layer, and port Function. The present invention implements configuration of priority weights on different nodes respectively, implements CIR and EIR functions, adapts to service requirements of different scenarios, and avoids waste of scheduling resources.

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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