A method of optical network terminal batch grading in passive optical network system on gigabit Ethernet

A passive optical network and optical network terminal technology, which is applied in the field of batch upgrade of optical network terminals, can solve the problems of cumbersome ONT upgrade process, increased ONT upgrade time, and long upgrade time, so as to avoid misoperation, The effect of increasing the upgrade speed

Inactive Publication Date: 2008-07-09
FENGHUO COMM SCI & TECH CO LTD
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  • Description
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Problems solved by technology

Usually the system does not allocate a large bandwidth for the OMCI network management channel, and the upgrade will take a long time
[0013] Second: does not support batch upgrade
Since the download method is defined as transmission in the OMCI channel, the OMCI channel is established between the OLT and the ONT in a point-to-point manner, so when the OLT upgrades multiple ONTs at the same time, it can only use the point-to-point method for the ONTs one by one through OMCI Message transfer image

Method used

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  • A method of optical network terminal batch grading in passive optical network system on gigabit Ethernet
  • A method of optical network terminal batch grading in passive optical network system on gigabit Ethernet
  • A method of optical network terminal batch grading in passive optical network system on gigabit Ethernet

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[0041] The present invention will be described in detail below in conjunction with specific embodiments:

[0042]Figure 2 is a schematic diagram of the format of a start-upgrade message set by the present invention. The message consists of destination MAC address, source MAC address, message type, message subtype, manufacturer ID, file version, segment size, file length and padding fields. composition. Among them, the destination MAC address is used to identify the address of the destination ONT or the broadcast address used in the batch upgrade, that is, ff-ff-ff-ff-ff-ff, which occupies 6 bytes. When the destination ONT receives a downstream message carrying the destination MAC address or broadcast MAC address that identifies the address of the ONT, the downstream message is handed over to the CPU of the destination ONT for processing; the source MAC address is used to identify the MAC address of the OLT, occupying 6 bytes; the value of the message type is FFFE, which means that...

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Abstract

The invention relates to a method for batch upgrading an optical network terminal (ONT) in a Gigabit Passive Optical Network (GPON) system, including the following steps: A. a optical line terminal (OLT) starts to download a version-upgrading document and sends the upgrading-starting message to the dominated ONT which prepares a storing space according to the length of a version-upgrading document after receiving the upgrading-starting message and returns an answering message to the upgrading-starting message; B. the OLT splits the version-upgrading document into a plurality of segments which are sealed in the message of downloading upgrading data and broadcasted to the dominated ONT through a broadcasting channel; C. after all the segments of the version-upgrading document are delivered, the OLT sends an upgrading-ending message, which carries a length of document and a checksum of the version-upgrading document, to the ONT, the ONT adopts the same algorithm for checksum with OLT for calculating the checksum of the length of document of version-upgrading document carried in the upgrading-ending message, and if the calculated checksum is same as the checksum carried in the upgrading-ending message, the version-upgrading document is wholly received.

Description

technical field [0001] The invention relates to a gigabit passive optical network (GPON), in particular to a method for upgrading optical network terminals (ONTs) in batches in a gigabit passive optical network system. Background technique [0002] GPON (Gigabit Passive Optical Network) is a new generation of gigabit passive broadband optical access technology developed by ITU-T SG15. Optical Network Terminal) and ODN (Optical Distribution Network), usually using a point-to-multipoint network structure. As shown in Figure 1. [0003] The GPON standard system is mainly composed of G.984.1, G.984.2, G.984.3 and G.984.4. The entire standard system defines and regulates the general characteristics of GPON, PMD, transmission and convergence sublayer, ONT management and interface control, etc. systematically. Among them, G.984.4 (GPON OMCI specification) is committed to realizing the interoperability of multi-vendor OLT and ONT equipment. This proposal specifies the ONU managem...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04Q11/00H04B10/08H04B10/07
Inventor 周娟向东
Owner FENGHUO COMM SCI & TECH CO LTD
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