Multi-layer multi-domain optical network-based dual-routing computing unit system

A path calculation unit and a technology of a calculation unit, which are applied in multiplexing system selection devices, transmission systems, electromagnetic wave transmission systems, etc., can solve problems such as extended path calculation time, reduced business service quality, and aggravated PCE computing capacity requirements , to achieve the effect of protection and recovery, and reduce flooding

Inactive Publication Date: 2009-12-16
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The performance of using PCE to complete cross-domain routing and the networking scheme of PCE have been verified. However, PCE is responsible for path calculation, which is conducive to the comprehensive utilization of cross-domain routing r...

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  • Multi-layer multi-domain optical network-based dual-routing computing unit system
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  • Multi-layer multi-domain optical network-based dual-routing computing unit system

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Embodiment Construction

[0037] The present invention introduces the dual-routing computing unit system model into the route selection process under multi-layer, multi-domain and multi-constraint conditions. The dual-routing computing unit system includes an individual computing unit UCE set according to the ASON routing module and a group computing unit based on PCE technology. GCE.

[0038] The GCE architecture based on the interpreter mode contains a total of 8 types of functional modules, namely: network communicator, message interpreter, path calculator, policy interpreter, authentication / authorization / accounter, northbound interface processor , adjacent to GCE resource manager, GCA resource manager.

[0039] The network communicator is characterized in that it provides a unified interface for GCE external communication, and is used to receive and forward messages interacting with associated group GCAs, adjacent GCEs, and management plane entities;

[0040] The message interpreter is characteriz...

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Abstract

The invention provides a multi-layer multi-domain optical network-based dual-routing computing unit system. The dual-routing computing unit system comprises an individual computing unit set according to an automatic switching optical network routing module and a cluster computing unit set according to path computing unit technology, wherein the individual computing unit is used for providing routing information synchronization and basic path computing functions for controlling plane nodes to meet the requirements for intra-domain distributed routing; and the cluster computing unit is used for providing a complex restricted path computing function in the multi-layer multi-domain optical network to meet the requirements on intra-domain centralized routing and inter-domain the distributed routing. In the system structure of the invention, the individual computing unit and the cluster computing unit of the dual-routing computing unit system can work independently as well as cooperatively to reduce the flood processing of path computing information and to realize the effective routing of the multi-layer multi-domain optical network.

Description

technical field [0001] The invention relates to the technical field of Automatically Switched Optical Networks (ASON, Automatically Switched Optical Networks), in particular to a dual-routing computing unit system based on a multi-layer multi-domain optical network. Background technique [0002] With the development trend of IP, broadband, and mobility of telecommunication networks, various broadband data services such as network video, real-time streaming media communication, large-capacity file transmission, and storage area networks are rapidly emerging, and the scale of optical networks continues to expand. In the process of route selection and routing information exchange in large-scale networks, the convergence time of path calculation is proportional to the scale of network topology, so the convergence time of path calculation in large-scale networks cannot be guaranteed. In order to enhance the scalability and flexibility of large-scale optical networks, especially t...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04B10/12
Inventor 张杰赵永利曹徐平赵冬岩顾畹仪
Owner BEIJING UNIV OF POSTS & TELECOMM
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