Device and method for realizing in-band OMA between OLT and ONUs in GEPON
An optical line terminal, optical network unit technology, applied in the direction of data exchange network, electrical components, digital transmission system, etc., can solve unsupportable, equipment interoperability limitations, dynamic bandwidth allocation terminal equipment service quality service layer function assignment And management is not described and other problems, to achieve the effect of enriching management methods and simplifying management
Active Publication Date: 2012-10-03
SHANGHAI BROADBAND TECH
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Problems solved by technology
[0005] The OAM defined in IEEE 802.3ah can only manage the PON port of the ONU device, and the management of the user port of the ONU can only be realized through the OAM protocol extended by each manufacturer, which limits the interoperability of the device
If an EPON system uses 1550nm wavelength to transmit downlink digital TV broadcasting, if a user unsubscribes from this service, the operator needs to close the video interface of the corresponding ONU, and this function can only be realized by pre-configuring the ONU. This cannot be supported
[0006] In addition, dynamic bandwidth allocation, authentication of terminal equipment, quality of service (QoS) guarantee, service layer functions (such as multicast, VoIP and TDM service bearer, VLAN, etc.), assignment and management are not described.
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[0025] Such as figure 1 As shown, a device for implementing in-band OAM between an OLT and an ONU in GEPON includes an OLT and one or more ONUs connected to the OLT in communication, wherein the OLT includes a first OAM module and communicates with the remote The management module is communicatively connected to the first OAM module, and the ONU includes a second OAM module and an application module communicatively connected to the second OAM module; wherein: the remote management module is used to receive an OAM management request, and the OAM The management request is forwarded to the first OAM module; the first OAM module is used to receive the OAM management request forwarded by the remote management module, and assemble the OAM management request into a custom type of Ethernet frame and send it to the second OAM module; the second OAM module is used to receive the OAM management request of the self-defined type of Ethernet frame, and send the OAM management request to the...
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The invention relates to a device and a method for realizing in-band OMA between an OLT and ONUs in a GEPON. The device comprises the OLT and one or more ONUs connected with the OLT through a light splitter, wherein the OLT comprises a first OMA module; each ONU comprises a second OMA module and an application module; a remote management module is used for receiving an OMA management request and forwards the OMA management request to the first OMA module; the first OMA module assembles the OMA management request into custom-type Ethernet frames and transmits the custom-type Ethernet frames to the second OMA module; the second OMA module transmits the OMA management request to the application module; and the application module is used for carrying out the OMA to the ONUs according to the OMA management request. The device and the method can realize centralized management of the ONUs through the remote management module at the OLT side, so that network management is simplified, and the application module provides rich management means for services of the ONUs.
Description
technical field [0001] The invention provides the technical field of Gigabit Ethernet Passive Optical Network (GEPON) in-band network management, and specifically relates to an in-band OAM device and method between an Optical Line Terminal (OLT) device and an Optical Network Unit (ONU) of the GEPON. Background technique [0002] The passive optical network (PON) system adopts passive optical transmission medium, which has the characteristics of high system reliability, low maintenance cost, good service transparency, and relatively low cost. It is considered to be the development trend of fixed broadband access in the future. Ethernet Passive Optical Network (EPON) adopts the extended Ethernet data link layer protocol on the basis of the passive optical network architecture, which has the advantages of simple protocol, low cost, and strong service capability. [0003] Since the EPON concept was put forward, it has received great attention from the industry. The First Kilome...
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IPC IPC(8): H04L29/06H04L12/24
Inventor 祝贵根李进易万春乐毅
Owner SHANGHAI BROADBAND TECH