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Bandwidth control method and communication node

A bandwidth adjustment and node technology, applied in the field of communications, can solve problems such as lossless adjustment of asymmetric bandwidth without OTN, and inability to adapt to changing needs of service traffic with asymmetric bandwidth.

Inactive Publication Date: 2011-10-12
韩宝 +2
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  • Abstract
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  • Application Information

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Problems solved by technology

With the increase of OTN bearing services, asymmetric bandwidth services such as Gigabit-Capable Passive Optical Network (Gigabit-Capable Passive OpticalNetwor, GPON), Video On Demand (Video On Demand, VOD) and other services are also increasing. Lossless adjustment of OTN asymmetric bandwidth bearer cannot adapt to changing requirements of asymmetric bandwidth service traffic

Method used

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  • Bandwidth control method and communication node

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Embodiment Construction

[0030] 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 creative efforts fall within the protection scope of the present invention.

[0031] method embodiment

[0032] A bandwidth adjustment method, the method of this embodiment is applicable to such as figure 2 In the point-to-multipoint OTN asymmetric bandwidth bearer system shown, one source node can send services to at least two sink nodes (three are taken as an example in the figure, that is, sink 1, 2, and 3), and the source node The process to reach the destination node through intermediate nodes includes the first node and downstream no...

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Abstract

The embodiment of the invention discloses a bandwidth control method and a communication node, belonging to the technical field of communications. The bandwidth control method in the embodiment of the invention comprises the following steps: multipath parallel basic crossed particles are sent to all the downstream branch export units of the local node by an access unit at the upstream of the local node; one-way adjustment signaling is loaded in the multiple parallel basic crossed particles and is used for instructing to adding or deleting basic crossed particles; polling detection is carried out, and normal signaling is sent when the one-way adjustment response states returned by all the downstream branch export units are confirmed to be received; normal signaling is received by the downstream branch export units, one-way adjustment is conducted on corresponding basic crossed particles in the next multipath parallel basic crossed particles; and the one-way bandwidth adjustment is also conducted on the corresponding downstream nodes. In the method of the embodiment of the invention, lossless adjustment of the bandwidth in the OTN (optical transport network) asymmetrical bandwidth bearing system from one point to multiple points is realized, thus meeting the demand of changes of asymmetrical bandwidth business flow.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a bandwidth adjustment method and a communication node. Background technique [0002] Optical transport network (Optical transport network, OTN), as the core technology of next-generation transport network, has rich operation management and maintenance (OAM), powerful tandem connection monitoring (TCM) capabilities and out-of-band forward error correction (FEC) capabilities, It can realize the flexible scheduling and management of large-capacity services, and has increasingly become the mainstream technology of the backbone transmission network. [0003] The OTN frame has a modular structure of 4080×4 and can carry customer signals. Optical Channel Data Unit flex (Optical Channel Data Unit-flex, ODUflex) is an OTN frame corresponding to a new rate level, which can carry services of any rate. When performing service transmission, first map the service to the payload area of...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04Q11/00
CPCH04J3/1682H04J3/1652H04J2203/0067H04Q2213/1301
Inventor 苏伟青华平黄曦丁炽武
Owner 韩宝
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