Method and device for regulating broadband in broad band demand distribution service

A technology of bandwidth adjustment and on-demand allocation, applied in the field of network communication, which can solve the problems of no support, no switch connection, and no client layer service information on the control plane.

Active Publication Date: 2007-07-25
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] However, in the above-mentioned Ethernet services, the SDH channel is initiated by the network management to complete the establishment of the control plane, and the Ethernet client layer connection is completely configured by the network management. Ethernet services are established in Switched Connection (SC) mode, which does not support service bandwidth adjustment through the User Network Interface (UNI), that is, customers cannot initiate bandwidth adjustments based on changes in service traffic

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  • Method and device for regulating broadband in broad band demand distribution service
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  • Method and device for regulating broadband in broad band demand distribution service

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[0018] In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0019] In the ASON network, more and more data services are used, and the data services have the characteristics of burstiness and unpredictability, while the traditional SDH network is designed for circuit services and does not adapt to the characteristics of data services. Therefore, ASON The network puts forward a new requirement, that is, the ASON network can adjust the network connection bandwidth in real time and dynamically according to the customer service flow. This service is called BoD service.

[0020] In order to realize the BoD business, GFP technology can be used to map the data service signal in...

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Abstract

Bandwidth distributed according to need traffic (BDANT) is corresponding to a virtual cascade connection set. The method includes steps: through control plane signaling, user network interface client end UNI-C sends bandwidth adjustment message based on BDANT to user network interface network end UNI-N; the bandwidth adjustment message includes adjustment quantity of bandwidth; based on the adjustment quantity of bandwidth and bottom tunnel granularity, UNI-N adjusts bandwidth. Instance in the invention also discloses bandwidth adjustment device in BDANT. Combining control plane GMPLS technique with LCAS, VC and GFP technique in transmission plane, the invention establishes BoD traffic automatically, and client end can carry out traffic bandwidth adjustment in real time dynamically based on change of flow of traffic.

Description

technical field [0001] The present invention relates to a network communication technology, in particular to a method and a device for adjusting bandwidth in a bandwidth on demand (Bandwidth on demand, BoD) service. Background technique [0002] Optical transport network, including synchronous digital hierarchy (Synchronous Digital Hierarchy, SDH), synchronous optical network data (Synchronous Optical Network, SONET) and optical transport network (Optical Transmission Network, OTN), is traditionally designed to transmit voice services, but The rapid development of data services has led to an increasing proportion of its service traffic in the existing optical network transmission traffic. In order to adapt to this rapid development trend, a multiservice transport platform (Multiservice Transport Platform, MSTP) device has been produced, which can not only connect to traditional Voice services, and can also access data services, through the Generic Framing Procedure (GFP), Li...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/56H04L12/46H04Q11/00H04L12/54
CPCH04L41/0896H04L45/50H04L12/5695H04L41/5025H04L47/15H04J2203/0069H04J2203/0085H04L47/70
Inventor 吴治平
Owner HUAWEI TECH CO LTD
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