Login method of optical network unit

A technology of optical network unit and registration process, which is applied in the field of Ethernet passive optical network, can solve problems such as illegal ONU network bandwidth resources, and achieve the effect of reducing bandwidth utilization efficiency

Active Publication Date: 2010-06-02
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In the prior art, when the ONU receives the Nack Register message from the OLT, it will immediately enter the re-registration state, which will cause the continuous re-registration of illegal ONUs to occupy network bandwidth resources. Negative impact, while considering the convenience of engineering and maintenance, still give the ONU a certain chance to try to register, so it is necessary to further improve the registration process of the existing ONU

Method used

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  • Login method of optical network unit
  • Login method of optical network unit
  • Login method of optical network unit

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Embodiment Construction

[0027] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0028] see figure 2 shown, figure 2 It shows the ONU registration process after adopting the silent mechanism, and the silent mechanism of the ONU utilizes the transfer process between waiting (WAIT) and rejected (DENIED) states to realize, and the specific process is as follows:

[0029] Initially, the ONU is in the "Wait" state, waiting for the OLT to broadcast a "Discovery Gate" message to all ONUs, and open the ONU discovery window, as in step S1.

[0030] Under the control of the MAC control instruction command (MACR: DA, REGISTER_REQ, STATUS<=REGISTER) of the upper layer of the ONU protocol stack, the ONU enters the "registration (Regitering)" state, such as step S2; in the new discovery window, the ONU enters the "registration Request (Register_REQ)" state, and send a "Registration Reque...

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Abstract

The invention discloses a login method of optical network unit, which comprises sending login request message to an optical line terminal (OLT) during login process of an optical network unit (ONU), and sending notification message to higher level protocol suite if receiving login rejection message from the OLT; starting a timer when the higher level protocol suite of the ONU receiving the notification message; and when the timer excesses the predetermined value, the ONU starts waiting state, and restarting new login process. The invention reduces the negative impact of uninterrupted and high-frequency login trails from the illegal ONU. The uninterrupted login shall increase expenditure of system and decrease the bandwidth utilization efficiency of system.

Description

technical field [0001] The invention relates to the technology applied to the Ethernet passive optical network (EPON), in particular to a registration method of an optical network unit (ONU) in the EPON. Background technique [0002] With the rapid development of the Internet and new services and applications such as IPTV putting forward higher and higher requirements for 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, EPON is the main implementation method of optical fiber access, and it is also the access technology with the most development potential. [0003] The EPON system adopts a broadband shared point-to-multipoint topology. Each optical line terminal (OLT) is connected to multiple ONUs through an optical distribution network (ODN). The downlink uses broadcast transmission, and the uplink uses time division multiple access (TDMA) In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/56H04L29/06H04Q11/00
Inventor 王作强王波沈成彬赵焕东蒋铭曹敏许瑾陈文胡卫
Owner CHINA TELECOM CORP LTD
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