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Method for discovering dynamic band width distributing ability and configuring parameter based on timer

A dynamic bandwidth allocation and parameter technology, which is applied in time division multiplexing system, multiplexing system selection device, selection device, etc., can solve the problems that EPON equipment cannot intercommunicate, communication efficiency decreases, and services cannot intercommunicate, etc.

Active Publication Date: 2007-01-17
CHINA TELECOM CORP LTD
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Problems solved by technology

However, 802.3ah does not give the exact definition of the queue set, and it is not clear about the filling content of each queue report in the case of multiple queue sets. Therefore, each chip manufacturer has different implementation methods, which leads to the inability of EPON devices to communicate with each other. The light ones lead to a decrease in communication efficiency, and the severe ones lead to the failure of business interoperability

Method used

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  • Method for discovering dynamic band width distributing ability and configuring parameter based on timer
  • Method for discovering dynamic band width distributing ability and configuring parameter based on timer
  • Method for discovering dynamic band width distributing ability and configuring parameter based on timer

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Embodiment Construction

[0036] The present invention provides a dynamic bandwidth capability discovery and parameter configuration method, including:

[0037] (1) In the operation, management and maintenance messages extended by a specific organization, place the number of queue sets supported by the optical network unit and the threshold value of the length of each queue in the queue set for transmission between the optical line terminal and the optical network unit, set up.

[0038] In the international standard IEEE802.3ah of EPON, an operation, administration and maintenance (OAM) function is stipulated, which is used to realize link monitoring and loopback functions. At the same time, the standard defines an Organization-Specific Extension (Organization-Specific Extension) mechanism, so that manufacturers and operators can define more OAM functions. The organization-specific extended OAM function is implemented through the organization-specific extended OAM protocol data unit. The invention de...

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Abstract

The method comprises: in the OA&M (operation, administration and maintenance) message expanded by a specified organization, setting the threshold of the queue set numbers supported by optical network unit (ONU) and the threshold of length of each queue in said queue set, for use in the data transmission and configuration between the OLT (optical line terminal) and the ONU; according to the preset thresholds above, the ONU sets the queue set field presenting the queue length and the queue set numbers in the REPORT frame of the multi point control protocol; the ONU reports the REPORT frame to the OLT; according to the numbers of uplink queue set and the length of each queue, the OLT authorizes the uplink bandwidth allocated by OLT. The invention can make the dynamic bandwidth allocation in the passive optical network and solves the intercommunication problem between ONU and OLT provided by multi venders.

Description

technical field [0001] The invention relates to the field of optical fiber access, in particular to a dynamic bandwidth allocation capability discovery and parameter configuration method for an Ethernet passive optical network system. Background technique [0002] With the rapid development of the Internet and new services and applications such as IPTV, higher requirements are placed on the access bandwidth. Optical fiber access has become an inevitable direction for the development of broadband access networks. Considering the maturity of technology and operating cost, Ethernet Passive Optical Network (EPON) is the most important means of realizing optical fiber access, and it is also the access technology with the most development potential. [0003] Since the EPON system adopts a bandwidth-sharing point-to-multipoint topology, each optical line terminal (OLT) connects multiple optical network units (ONUs) through the optical distribution network (ODN) for downlink broadca...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04J3/16
Inventor 沈成彬左建王晓平陆钧
Owner CHINA TELECOM CORP LTD
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