Method for determining business transmission path, PCE, and SDN network

A technology of paths and services, applied in the field of communications, can solve the problems of difficult system collection, calculation and deployment, and difficult to realize automatic traffic adjustment.

Active Publication Date: 2018-03-13
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is difficult to realize automatic collection, calculation and deployment of the whole system, and it is difficult to realize automatic adjustment of traffic

Method used

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  • Method for determining business transmission path, PCE, and SDN network
  • Method for determining business transmission path, PCE, and SDN network
  • Method for determining business transmission path, PCE, and SDN network

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Embodiment Construction

[0025] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The technical solution of the present invention will be described in various aspects below in conjunction with various figures and embodiments.

[0026] image 3 It is a schematic flowchart of an embodiment of the method for determining a service transmission path according to the present in...

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Abstract

The invention relates to a method for determining a business transmission path, a PCE and an SDN network, and relates to the field of communication. The method comprises the steps: enabling the PCE todetermine a business guarantee path and flow type information corresponding to the business guarantee path, transmitting the business guarantee path and the flow type information to a PCC based on anextended PCEP protocol, and enabling the PCC to carry out the automatic dredging of a business flow based on the business guarantee path and the flow type information. According to the invention, thePCE transmits the business guarantee path and the flow type information corresponding to the business guarantee path to the PCC. An object for transmitting the business guarantee path and the flow type information is defined, so as to achieve the centralized calculation of flow based on a business flow and the flow automatic adjustment, thereby reducing the link of manual intervention. The methodcan achieve the end-to-end path guarantee for a specific business, and can improve the flow scheduling and optimization capability of an operator in a network.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a method for determining a service transmission path, a PCE and an SDN network. Background technique [0002] Under the SDN (Software Defined Network, software-defined network) network architecture, the request and calculation of the optimized path are generally implemented through the PCEP (Path Computation Element Protocol, Path Computation Element Protocol) protocol. Such as figure 1 As shown, the PCEP protocol is a communication protocol between a PCC (Path Computation Client, path computation client) and a PCE (Path Computation Elementation, path computation element). The PCC is the requester for the optimized path, and the PCE is the implementer for the centralized calculation of the optimized path. RFC5440 defines a series of ObjectClasses of the PCEP protocol, which are used to transmit some constraints in the path calculation process, such as the sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/801
CPCH04L47/10
Inventor 王爱俊
Owner CHINA TELECOM CORP LTD
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