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

A technology of intelligent optical network and optical transport network, applied in the direction of transmission system, network interconnection, multiplexing system selection device, etc. Restoration, failure of business b102 protection or restoration etc.

Active Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 ele

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] Embodiment 1: a method for configuring and using a virtual TE link for fault monitoring and participating in route calculation.

[0109] refer to image 3 , assuming that VC4 time slots 1 to 16 of the links between NE B and NE, NE E and F, and NE F and C are to be configured as bandwidth resources of a virtual TE link.

[0110] The method for configuring and using the virtual TE link described in this embodiment specifically includes the following steps:

[0111] 101. On network element B and network element C, respectively set VC4 time slots 1 to 16 on optical ports B.1 and C.1 as the reserved state, and establish optical ports E on network element E and network element F respectively .1 and E.2, and between F.1 and F.2 VC4 timeslots 1 to 16 for cross-connection;

[0112] 102. Configure optical port B.1 on network element B as a virtual TE link, and its bandwidth resources are VC4 time slots 1 to 16 of optical port B.1, and configure the remote network element of the...

Embodiment 2

[0122] Embodiment 2: When an MSP ring spanning the ASON and the traditional OTN is configured at the boundary between the traditional OTN and the ASON, configure and use a virtual TE link that only performs fault monitoring but does not participate in route calculation.

[0123] refer to image 3 , assuming that a 2-fiber bidirectional multiplex section ring is configured between network element B, network element E, network element F, and network element C, and only includes the above-mentioned multiplex section ring in ASON through optical port B.2-optical port The information in part C.2 does not include the part formed between network element B and network element C via network element E and network element F in the above-mentioned multiplex section switching. Configure a virtual TE link between 1 that only performs fault monitoring and does not participate in route calculation, and is used to describe the part between network element B and network element C in the multipl...

Embodiment 3

[0130] Embodiment 3: When an MSP ring is configured in a traditional optical transport network, a virtual TE link is configured and used.

[0131] refer to Figure 5 , a 2-fiber bidirectional MSP ring is configured between network elements A, B, E, F, C, and D, as shown in Figure 5 As shown by the thicker solid line in , that is, the entire multiplex section ring passes through two nodes in ASON and the two half-rings of the multiplex section ring are all in the traditional network. Among them, network elements A, D, E and F NE is a traditional optical transport network element, while NEs B and C are ASON NEs. At this time, configure virtual TE link a 301 between optical port B.1 and optical port C.1 for fault monitoring and participate in route calculation, and configure any one of them between optical port B.3 and optical port C.3 The virtual TE link b302 can be configured as a virtual TE link that performs fault monitoring and participates in route calculation, or can be...

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PUM

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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. ...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/28
CPCH04J14/0227H04J14/0283H04J14/0286H04L41/0668H04Q11/0062H04Q2011/0073H04Q2011/0086H04J14/0228H04L41/40H04L41/122
Inventor 黄黎杨榆冯俊杰罗贤龙高建华孙俊柏
Owner HUAWEI TECH CO LTD
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