Resource distributing method while traditional optical transfer net and intelligent optical network grouping

Abstract

The present invention discloses a resources allocation method utilizing tradition light transportation network resource, in tradition light transportation network net element intelligent optical network net element mixing networking state. It contains configuring at least one virtual flow rate engineering link between two intelligent optical network net elements connected with tradition light transportation network; issuing said configured virtual flow rate engineering link correlation attribute information in intelligent optical network. Hereby tradition light transportation network resource can be used for establishment light connection, and when fault occurrence, to make protection and recovery to interrupted service utilizing tradition light transportation network resource.

Description

technical field [0001] The present invention relates to a traditional optical transport network and an intelligent optical network, and in particular to the method of fully utilizing the network resources of the traditional optical transport network for resource allocation in the case of mixed networking of traditional optical transport network elements and intelligent optical network elements method. Background technique [0002] The traditional optical transport network, including Synchronous Digital Hierarchy / Synchronous Optical Network (SDH / SONET) and wavelength switching network, etc., is essentially a centralized management system. In traditional optical transport networks, operations such as creation, maintenance, and removal of optical connections all require manual intervention. Obviously, this kind of optical transport network cannot meet the requirements of the rapid growth of data services for dynamic switching and flexibility of the optical transport network. ...

AI Technical Summary

Problems solved by technology

[0015] 1) When ASON network resources are insufficient or due to specific considerations, it is impossible to use traditional optical transport network resources to establish services or protect or restore interrupted services

[0016] For example, in figure 1 , when the link resources in ASON are exhausted, the link between network element B and network element C is broken, and the service a101 will be interrupted. At this time, the system cannot use E. Link resource protection or restoration of interrupted services from network element E to network element F and network element F and network element C a101

[0017] 2) When the link passing through the traditional optical transport network fails, ASON will not be able to know the failure message, and cannot initiate protection or recovery processing to protect or restore the service

For example, if the link between network element B and network element C on the multiplex section ring is broken, the service a101 will be protected by the multiplex section ring and does not need to be protected or restored. However, in the existing method, ASON Triggered by the disconnection of the link between network element B and network element C, the network element will check the connectivity status of the multiplex section ring. If the multiplex section ring is found to be incomplete, it will mistakenly judge that the Business a101 Initiate protection or restoration

However, when the link between NE E and NE F, and NE B and NE C in the ring is disconnected successively, service b102 will be interrupted, and protection or recovery is required. The link between element B and network element C failed to initiate protection or restoration of service b102, resulting in failure to protect or restore service b102

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