Method and system for booking path, path computing client and path computing unit

Abstract

The embodiment of the invention discloses a method and a system for booking a path, a path computing client and a path computing unit. The method for booking the path is applied to the path computing unit and comprises the following steps: receiving a booking service request message which comprises time attribute parameters; and computing the path of a booking service according to the time attribute parameters, traffic engineering data information and booking service linkage information, and sending the computed path information of the booking service to the path computing client. The method for booking the path is applied to the path computing client and comprises the following steps: generating a booking service request message comprising the time attribute parameters, and sending the booking service request message to the path computing unit; and receiving the path information of the booking service returned by the path computing unit, wherein the path information of the booking service is acquired through computation by the path computing unit according to the time attribute parameters, the traffic engineering data information and the booking service linkage information.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for booking a route, a route calculation client, and a route calculation unit. Background technique [0002] With the continuous development of data communication network technology and the continuous diversification of customer business needs, various business types have emerged, such as online video, video conferencing, online 3D games, video downloads, and various private line services; private line services include : Layer 1 Virtual Private Network (L1 Virtue Private Network, L1VPN), Layer 2 Virtual Private Network (L2 Virtue Private Network, L2VPN), etc. Each customer has different requirements for service quality, and some customers require instant provisioning (Bandwidth on Demand, BOD). This kind of BOD service is very sensitive to time requirements, and requires operators to be able to perform business scheduling management in a timely and flex...

AI Technical Summary

Problems solved by technology

[0004] During the research and practice of this solution, the inventor found the following problems in the prior art: Both the Path State Block (Path State Block, PSB) and the Reserve State Block (Reserve State Block, RSB) in the prior art need to be refreshed The time information that has nothing to do with resources increases the burden of signaling and cannot realize the fast and convenient activation of reservation services

[0005] At the same time, the existing technology does not have a clear corresponding routing solution, that is, how to realize the routing calculation of the reservation service. One is to manually specify the corresponding resources through the network management, which cannot reflect the advantages of control plane automation; Protocol, publish the time characteristics of Traffic Engineering (Traffic Engineering, TE) links in the routing protocol, which will greatly increase the complexity of routing, and cannot realize the fast and convenient opening of reservation services

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