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A kind of deregistration control method based on onu and onu

A technology of deregistration and time stamping, applied in the field of Ethernet passive optical network, can solve the problems of optical link establishment failure, affecting business application, unfavorable system stability, etc., to reduce the impact, reduce the number of times, and improve system stability sexual effect

Inactive Publication Date: 2016-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the ONU is woken up and returns to the normal or wake-up state, the time stamps of the OLT and the ONU are very prone to drift, resulting in the deregistration of the ONU
In addition, because the sleep state of the energy-saving mode needs to turn off the optical module of the ONU, the optical link may fail to be established when the link is re-established, and the ONU will also be unregistered.
It can be seen that the existing energy-saving mode tends to frequently trigger the deregistration process, which affects business applications and is not conducive to system stability

Method used

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  • A kind of deregistration control method based on onu and onu
  • A kind of deregistration control method based on onu and onu
  • A kind of deregistration control method based on onu and onu

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] In this embodiment, the ONU is woken up or automatically woken up in sleep state. image 3 It is a schematic flow chart of the ONU-based deregistration control method in Embodiment 1 of the present invention, as image 3 As shown, the method includes:

[0091] Step 301: the ONU starts the energy saving mode.

[0092] Step 302: the ONU enters into sleep mode, and closes the sending and receiving functions of the PON port.

[0093] Step 303: the ONU is woken up or automatically woken up.

[0094] Step 304: The ONU detects an optical link failure / MAC layer failure / time stamp drift, and goes to step 305; otherwise, the ONU enters a wake-up state.

[0095] Step 305: The ONU starts state maintenance and starts a timer T.

[0096] The timing time of the timer T can be a preset fixed value, or can be adjusted by the ONU itself according to the service situation, and can also be configured by the OLT by extending the OAM.

[0097] Step 306: before the timer T times out, the...

Embodiment 2

[0109] In this embodiment, the ONU is woken up or automatically woken up in a doze state. Figure 5 It is a schematic flow chart of the ONU-based deregistration control method in Embodiment 2 of the present invention, as Figure 5 As shown, the method includes:

[0110] Step 501: The ONU starts the energy saving mode.

[0111] Step 502: The ONU enters into a doze mode, and the sending function of the PON port is turned off, and the receiving function is still turned on.

[0112] Step 503: The ONU needs to wake up automatically when it is woken up or is in the process of sending upstream.

[0113] Step 504: ONU detects faults such as optical link failure / MAC layer failure / time stamp drift, etc., and goes to step 505; otherwise, maintains a normal state.

[0114] Step 505: The ONU starts state maintenance and starts a timer T.

[0115] The timing time of the timer T can be a preset fixed value, or it can be adjusted by the ONU itself according to the business situation, and ...

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Abstract

The present invention discloses a method for controlling the deregistering of optical network unit (ONU). When the ONU being the status of energy-saving is transformed into the normal or awakening status and the ONU determines the deregistering is necessary, the ONU is not deregistered within the prearranged time. The ONU re-determines whether the deregistering is necessary after the prearranged time. The ONU determines yes, then the deregistering process is performed; if the ONU determines no, the normal or awakening status is maintained. The present invention also discloses the corresponding ONU. The invention can reduce the times for triggering the deregistering procedure in the mode of energy-saving, therefore the influence on traffic due to the energy-saving is reduced and the system stability is improved.

Description

technical field [0001] The present invention relates to the field of Ethernet Passive Optical Network (Ethernet Passive Optical Network, EPON), in particular to a deregistration control method based on Optical Network Unit (Optical Network Unit, ONU) and the ONU. Background technique [0002] 1G-EPON and 10G-EPON are new-generation broadband passive optical integrated access technologies based on IEEE802.3-2005Section5 and IEEE802.3av standards respectively. figure 1 is a schematic diagram of the basic structure of the PON network, such as figure 1 As shown, a PON network usually consists of an optical line terminal (OpticalLineTerminal, OLT) at the office side, an optical network unit (OpticalNetworkUnit, ONU) / optical network terminal (OpticalNetworkTermination, ONT) at the user side, and an optical distribution network (OpticalDistributionNetwork, ODN), wherein , ODN consists of single-mode optical fiber and passive optical components such as optical splitters and optical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04B10/077
CPCH04Q11/0067H04L41/0833H04Q2011/0079
Inventor 何苑凌夏顺东臧美燕张德智袁立权
Owner ZTE CORP
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