The Design And Implementation Of IP Hard Pipe On VRPV8 Platform

With the development of the degree of enterprise informatization and the rapid development of multimedia services such as news,pictures,and video,the services carried over SDH networks are gradually reduced,and eventually evolved into packet services with larger bandwidth.In recent years,the power communication network and the railway communication network have been transformed into IP network.As a result,major telecommunications operators' networks have gradually evolved to ALL IP,and a large number of delay-sensitive and high-value customer line services need to be migrated to IP networks.The use of IP networks to carry high-value customer dedicated line services can not only greatly reduce costs,but also bring greater bandwidth and more flexible service expansion,which is unmatched by private networks.However,the traditional IP network traffic model is complex.In the case of congestion or burst,it is difficult to ensure that the delay target.Therefore,it is an urgent need to provide a dedicated line access service based on IP bandwidth and low delay access technology to implement high-quality pipelines in IP networks.The research work in this paper focuses on the above objectives.Under the VRPV8 platform of the router system,the IP hard-pipe scheme that uses the IP network to carry high-value customer line services is studied.The main content of the thesis is as follows:1)Aiming at the deficiency of the traditional HQOS queue scheduling model and scheduling algorithm,this paper designs a new IP hard pipe queue scheduling model and scheduling algorithm strategy.This model divides the IP network into two planes,soft and hard.Through HQOS technology,separate SQ,GQ,and VI are applied to the hard and soft pipes respectively on the interface,and two scheduling trees are established to implement service isolation.During port scheduling,using a combination of SP algorithm and WRR algorithm,soft and hard pipe traffic enters different priority queues,and the port prioritizes hard pipe traffic.WRR scheduling algorithm is used between IP Hard Pipe FQ.These ensure a low latency of the hard pipe.2)Development and implementation of IP hard pipeline under router VRPV8 platform.This paper gives the architecture design of the IP hard pipeline.Design the resource-side command-line model and data model and the component-side related processing logic according to the overall architecture.This paper designs and implements the functions of the IP hard pipe,including bandwidth configuration delivery,IP hard pipe buffer allocation,IP hard pipe topology creation and release,IP hard pipe alarm,and IP hard pipe statistics query and clear.3)Complete the tests of IP hard pipe related functions,analyze the problem of delay introduction,and provide a solution to the delay optimization of the routing device.The network delay consists of serialization delay,transmission delay,and switching delay.For the transmission delay,it cannot be tested in the experimental environment.Therefore,this paper focuses on the introduction of the delay of the ATN equipment,analyzes the reasons and gives the corresponding optimization plan.Finally,the IP hard pipe designed and developed in this paper has passed a series of related tests and been deployed in the enterprise pilot network.It has been operating well so far and gained wide acclaim from users.It is believed that the IP hard pipe technology in this paper can serve as a reference for the future ALL IP network.