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Method and system for remotely upgrading optical network unit

A technology for optical network unit and remote upgrade, which is applied in the direction of transmission system, digital transmission system, data exchange network, etc. It can solve the problems of huge workload, high maintenance cost, and lack of operability, so as to meet engineering needs and upgrade The effect of easy maintenance

Active Publication Date: 2011-05-18
ZTE CORP
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  • Description
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  • Application Information

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Problems solved by technology

[0006] When there is an upgrade demand, if the upgrade is performed on the user side alone, the workload will be huge, the maintenance cost will be quite high, it will not be operable, and the bureau will not accept this upgrade method

Method used

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  • Method and system for remotely upgrading optical network unit
  • Method and system for remotely upgrading optical network unit
  • Method and system for remotely upgrading optical network unit

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0037]The upgrade message of the present invention is carried by the OAM Protocol Data Unit (OAM Protocol Data Unit), and the OLT does not need to configure a service channel for the downlink ONU. If the upgrade message is transmitted through the service channel, user bandwidth will be occupied, and virtual local area network (VLAN, Virtual Local Area Network) resources will also be occupied. However, when the upgrade message is carried by the OAM protocol data unit, it will not affect the service channel between the OLT and the ONU.

[0038] In the present invention, the OAM message needs to be extended, and the specific extended OAM message must comply with the regulations on OAM extension in Clause 57.4.3.6 of IEEE802.3-2005. figure...

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Abstract

The invention discloses a method for remotely upgrading an optical network unit. An operation management and maintenance protocol data unit is expanded and serves as a carrier for upgrading an interactive message between an optical network unit (ONU) and an optical line terminal (OLT). The method comprises the following steps that: the OLT sends an upgrade request message to the ONU, judges whether the ONU allows upgrade according to a received upgrade response message, and encapsulates an upgrade file in an upgrade message and transmits the upgrade file to the ONU if the upgrade is allowed; after the file is completely transmitted, the OLT sends a transmission completion notification message to the ONU; after receiving the upgrade file transmission completion notification message sent by the OLT, the ONU writes the upgrade file in a spare storage area or the current storage area; and the OLT starts from the storage area, and sets the storage area as a primary storage area if the OLT is successfully started, namely the OLT always starts from the storage area from now on. The invention discloses a system for remotely upgrading the optical network unit. The technical scheme is easy to realize and practical.

Description

technical field [0001] The present invention relates to the technology of remote upgrading of Optical Network Unit (ONU, Optical Network Unit), in particular to a method and system for remote upgrading of Optical Network Unit in Ethernet Passive Optical Network (EPON, Ethernet Passive Optical Network). Background technique [0002] figure 1 It is a schematic diagram of the all-fiber protection structure in the EPON system, such as figure 1 As shown, the passive optical network (PON, Passive Optical Network) technology is a point-to-multipoint optical fiber access technology, which consists of an optical line terminal (OLT, Optical Line Terminal) at the office side, an ONU at the user side, and an optical line terminal. Distribution network (ODN, Optical Distribution Network) composition. ODN is a point-to-multipoint structure, and one OLT is connected to multiple ONUs through ODN. [0003] PON technology can be subdivided into several types: ATM passive optical network (A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/56H04Q11/00
Inventor 陈晓许煜芝李二洁王新余
Owner ZTE CORP
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