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Method, equipment and system of distributing bandwidth

A bandwidth and bandwidth allocation technology, applied in the field of network communication, can solve problems such as waste of resources and inability to meet data transmission requirements

Inactive Publication Date: 2010-07-21
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In actual service implementation, the uplink data traffic of each CNU is usually different. For example, CNU1 needs to occupy 4ms uplink bandwidth for Internet service and IP phone service at the same time, while CNU2 only needs to take up 2ms for Internet service. Uplink bandwidth. In this way, if the CLT allocates the same uplink bandwidth to each CNU regardless of the actual business conditions of the CNUs, the uplink bandwidth allocated to some CNUs cannot meet the data transmission requirements, while the uplink bandwidth allocated to other CNUs remaining, resulting in a waste of resources

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  • Method, equipment and system of distributing bandwidth
  • Method, equipment and system of distributing bandwidth

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Embodiment Construction

[0035] On the other hand, users generally require different uplink services on the CNU to have different service levels and qualities. For this reason, it is necessary to set a corresponding service level agreement (SLA, Service Level Agreement) parameter for each different uplink business on the CNU, through which the SLA parameter requires the minimum uplink bandwidth service that the uplink service can enjoy or limits the maximum uplink service that the uplink service can enjoy. Uplink bandwidth service.

[0036] Based on the above two reasons, in order to not only reflect the upstream data traffic in the CNU but also reflect the SLA parameter requirements corresponding to the CNU's business when allocating the upstream bandwidth, when the CNU reports the upstream data traffic to the CLT, it needs to be based on the SLA parameters, and the CLT also needs to consider the requirements of the SLA parameters when allocating uplink bandwidth according to uplink data traffic.

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Abstract

The present invention discloses a method for the bandwidth allocation. The method comprises: a CLT confirms the credit parameter value corresponding to each uplink service of each CNU; on the uplink transmission cycle, each CNU constructs a REPORT packet which carries the uplink service flow information according to the service level agreement SLA parameter corresponding to each uplink service, and sends to a coaxial cable for bearing the Ethernet headend CLT; and the CLT allocates the uplink bandwidth for each CNU according to the REPORT packet reported by each CNU and the current credit parameter of the CNU. The present invention also discloses a CNU, a CLT and a bandwidth allocation system. The present invention can guarantee that each CNU is allocated with appropriate uplink bandwidth, and thereby the utilization of the uplink bandwidth is improved.

Description

technical field [0001] The present invention relates to network communication technology, in particular to a method, device and system for allocating bandwidth. Background technique [0002] At present, referring to the network structure of the Ethernet Passive Optical Network (EPON, Ethernet Passive Optical Network), an Ethernet Passive Coaxial-cable Network (EPCN, Ethernet Passive Coaxial-cable Network) system appears. The EPCN system uses Ethernet as the carrier, adopts point-to-multipoint structure, passive coaxial cable transmission mode, and sends data flow in the form of burst Ethernet packets in the uplink. Figure 1 is a schematic structural diagram of the EPCN system. As shown in Figure 1, the EPCN system mainly includes a coaxial cable-carrying Ethernet head-end (CLT, Coaxial-cable Line Terminal), a splitter / distributor, and multiple coaxial cable-carrying Ethernet terminal (CNU, Coaxial-Cable Network Unit). The EPCN system connects various Ethernet devices throu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/28H04L12/911
Inventor 于洋李渭洲赵舒畅王浩文闻郑海生肖冰
Owner NEW H3C TECH CO LTD