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A method and system for realizing full protection mode

A technology of full protection and network management system, applied in the field of full protection mode, can solve problems such as the inability to meet fast recovery, and achieve the effects of shortening switching time, fast recovery, and improving service quality

Active Publication Date: 2015-10-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the fault notification method uses the active OLT to send the switching command to the active ONU, if the active link cannot perform downlink communication, and the switching command sent by the active OLT to the active ONU cannot be received, then the active ONU will Switching can only be performed after detecting line faults by itself. This process cannot meet the needs of fast recovery after time-sensitive business interruption

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  • A method and system for realizing full protection mode
  • A method and system for realizing full protection mode
  • A method and system for realizing full protection mode

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Embodiment Construction

[0034] image 3 The flow chart of the method for realizing full protection mode for the present invention, as image 3 shown, including:

[0035] Step 300: When the active OLT detects an uplink failure or the active OLT itself fails, it notifies the standby OLT.

[0036] In this step, when the active OLT detects an uplink failure or the active OLT itself fails, the active OLT can directly send a fault notification to the standby OLT to notify the standby OLT to initiate a switchover to the standby ONU, or send a fault notification to the standby ONU through the network management system. The standby OLT sends a failure notification to notify the standby OLT to initiate a switchover to the standby ONU.

[0037] Step 301: The standby OLT sends a switching command to the standby ONU, and the ONU performs switching after receiving the switching command.

[0038] In this step, the standby OLT can pass the physical layer operation management and maintenance (PLOAM) message, or th...

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Abstract

A method and system for implementing full protection mode are provided by the invention. When a master Optical Line Terminal (OLT) in a Passive Optical Network (PON) system detects that a master fiber or a branch fiber is disconnected, or a failure occurs on the master OLT, the master OLT notifies a slave Optical Network Unit (ONU) to perform switch. In this way, when a downlink communication can not be performed by a master link, the case is avoided that the master ONU can perform switch only depending on a line failure detected by itself, accordingly, the ONU switch time is shortened, the transmission in time for the time sensitivity service in the PON system is ensured, which enables the ONU and the OLT to implement quick communication resumption, the service quality of the PON system is improved.

Description

technical field [0001] The invention relates to passive optical network (PON) technology, in particular to a method and system for realizing full protection mode. Background technique [0002] Gigabit-Capable Passive Optical Network (GPON, Gigabit-Capable Passive Optical Network) technology and Ethernet Passive Optical Network (EPON, Ethernet Passive Optical Network) are two important technical branches in the PON family, similar to other PON technologies, GPON And EPON is also a passive optical access technology that adopts a point-to-multipoint topology. [0003] figure 1 It is a schematic diagram of the topology structure of the existing PON system, such as figure 1 As shown, the PON is composed of an optical line terminal (OLT, Optical Line Terminal) at the office side, an optical network unit (ONU, Optical Network Unit) at the user side, and an optical distribution network (ODN, Optical Distribution Network) such as an optical splitter. to a multipoint network struct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/07H04B10/032H04Q11/00
CPCH04B10/032H04Q11/0067H04Q2011/0081
Inventor 耿丹何苑凌张伟良臧美燕
Owner ZTE CORP
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