WO2016184242A1 - Procédé de commutation de protection et unité de réseau optique - Google Patents

Procédé de commutation de protection et unité de réseau optique Download PDF

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Publication number
WO2016184242A1
WO2016184242A1 PCT/CN2016/076746 CN2016076746W WO2016184242A1 WO 2016184242 A1 WO2016184242 A1 WO 2016184242A1 CN 2016076746 W CN2016076746 W CN 2016076746W WO 2016184242 A1 WO2016184242 A1 WO 2016184242A1
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Prior art keywords
signal
optical module
uplink
switching
board
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PCT/CN2016/076746
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English (en)
Chinese (zh)
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张灏文
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中兴通讯股份有限公司
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Publication of WO2016184242A1 publication Critical patent/WO2016184242A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems

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  • This document relates to, but is not limited to, the field of passive optical networks, and in particular to a method for implementing protection switching and an optical network unit.
  • Passive Optical Network (PON) technology is a point-to-multipoint fiber access technology.
  • the PON network is composed of an optical line terminal (OLT), an optical network unit (ONU), and an optical distribution network (ODN).
  • the PON access technology generally includes an Ethernet Passive Optical Network (EPON) access technology and a Gigabit Passive Optical Network (GPON) access technology;
  • EPON Ethernet Passive Optical Network
  • GPON Gigabit Passive Optical Network
  • the incoming technology can be further divided into four access technologies: EPON, 10GEPON, GPON and XGPON.
  • EPON access technology its uplink bandwidth and downlink bandwidth are symmetrical, complying with the IEEE 802.3ah technical standard, both uplink and downlink rates are 1.25 gigabits per second (Gbps); EPON, upstream and downstream wavelengths are respectively 1310 nm (nm) And 1490nm; In addition, EPON's ONU optical modules are available in small package (SFF, Small Form Factor) and SFP (Small Form Pluggable).
  • SFF Small Form Factor
  • SFP Small Form Pluggable
  • 10G EPON access technology its uplink bandwidth and downlink bandwidth are asymmetric, complying with the technical standard of IEEE802.3av, the uplink rate is 1.25Gbps, the downlink rate is 10.3125Gbps; the upstream wavelength and downlink wavelength are 1310nm and 1577nm respectively.
  • the EPON ONU optical module is an SFP+ package, and the package conforms to the SFF-8431 standard.
  • GPON access technology its upstream bandwidth and downlink bandwidth are asymmetric, complying with the technical standards of ITU-T G.984, the uplink rate is 1.244 Gbps, the downlink rate is 2.488 Gbps, and the upstream and downstream wavelengths are 1310 nm and 1490 nm, respectively.
  • GPON ONU optical modules are available in SFF and SFP packages.
  • XGPON access technology its upstream bandwidth and downstream bandwidth are asymmetric, complying with ITU-T G.987
  • the technical standard has an uplink rate of 2.48832 Gbps and a downlink rate of 9.95328 Gbps; the upstream and downstream wavelengths are 1270 nm and 1577 nm, respectively.
  • the XGPON ONU optical module is in SFP+ package mode, and the package conforms to the SFF-8431 standard.
  • EPON, 10G EPON, GPON, and XGPON are used as the uplink interface of the ONU.
  • Different system providers have different system architectures for service processing of the uplink interface design, and different processing needs to be performed on uplink interfaces of different PON types.
  • the PON protection for ONUs includes four types: Class A, Class B, Class C, and Class D.
  • Class C PON protection is more reliable than Class A and Class B protection, and lower than Class D protection; therefore, applicable.
  • the embodiment of the invention provides a method for implementing protection switching and an optical network unit, which can implement automatic switching, and the switching time is short.
  • An embodiment of the present invention provides a method for implementing protection switching, including:
  • the uplink board sends a protection switching related parameter signal and an uplink serializer SERDES signal to the main control board;
  • the main control board controls the switching of the optical modules in the uplink board according to the parameter signals related to the protection switching, the uplink SERDES signal, and the local clock.
  • the uplink board includes an optical module, a switch, and a passive optical network PON medium access control MAC chip;
  • the optical module includes a first optical module and a second optical module
  • One end of the first optical module and the second optical module respectively pass through different uplink interfaces and optical distribution networks An ODN connection; the other ends of the first optical module and the second optical module are connected to the switch;
  • Sending the uplink SERDES signal to the main control board by the uplink board includes:
  • the switch sends the PON signal of the first optical module and the second optical module to the PON MAC chip; after being converted into an uplink SERDES signal by the PON MAC chip, the PON signal is transmitted to the main control board.
  • the main control board includes a service processing unit and a programmable logic device
  • the switching of the optical modules in the control uplink board includes:
  • the service processing unit converts the received uplink SERDES signal, extracts a message that the optical line terminal OLT requests the optical network unit ONU to switch, converts it into a local switching signal, and sends it to the programmable logic device;
  • the programmable logic device generates a control signal according to the parameter signal related to the protection switching sent by the uplink board, the local switching signal and the local clock, and controls the switching switch to perform the switching of the optical module in the uplink board through the control signal.
  • the generating the control signal includes:
  • the programmable logic device When the programmable logic device receives the LOS signal, the programmable logic device filters the LOS signal by local clock sampling, and stabilizes the filtered LOS signal by two or more sampling periods of the local clock. And generating, by the local switching signal, the local clock, the filtered LOS signal, the AT signal, and the TX-DISABLE signal, a control signal for performing optical module switching in the uplink board.
  • the parameter information related to the protection switching includes: a signal loss LOS signal and a transmission signal off Disconnect the TX-DISABLE signal;
  • the protection switching related parameter signals include: a LOS signal and a TX-DISABLE signal;
  • the protection switching related parameter signals include: an in-position AT signal, an LOS signal, and a TX. -DISABLE signal;
  • the parameter signals related to the protection switching include: an AT signal, an LOS signal, and a TX-DISABLE signal;
  • the protection switching related parameter signals include: an AT signal, an LOS signal, and a TX-DISABLE signal;
  • the protection switching related parameter signals include: an AT signal, an LOS signal, and a TX-DISABLE signal.
  • the method further includes:
  • the uplink board presets a pin name corresponding to the parameter signal related to the protection switching of the optical module
  • the uplink board obtains a parameter signal related to protection switching by a preset pin name.
  • Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions for performing any of the methods described above.
  • the application further provides an optical network unit, including an uplink board and a main control board;
  • the uplink board is configured to send a protection switching related parameter signal and an uplink SERDES signal to the main control board;
  • the main control board is configured to control the switching of the optical modules in the uplink board according to the parameter signals related to the protection switching, the uplink SERDES signal, and the local clock.
  • the uplink board includes an optical module, a switch, and a passive optical network PON medium access control MAC chip;
  • the optical module includes a first optical module and a second optical module; the first optical module and the second optical One end of the module is connected to the optical distribution network ODN through different uplink interfaces; the other ends of the first optical module and the second optical module are connected to the switch;
  • the first optical module or the second optical module is configured to send a corresponding protection switching parameter signal to the main control board; and send a corresponding PON signal to the switch;
  • a switch configured to send the PON signals of the first optical module and the second optical module to the PON MAC chip
  • the PON MAC chip is configured to convert the PON signal of the first optical module and the second optical module to an uplink SERDES signal and then transmit the signal to the main control board.
  • the first optical module, the second optical module, and the PON MAC chip are all Ethernet passive optical network EPON, or 10G EPON, or Gigabit passive optical network GPON or 10G GPON.
  • the main control board includes a service processing unit and a programmable logic device
  • the service processing unit is configured to: receive the received uplink SERDES signal, extract a message that the OLT requires ONU switching, convert the signal into a local switching signal, and send it to the programmable logic device and send the signal to the programmable logic device;
  • the programmable logic device is configured to generate a control signal according to the parameter signal related to the protection switching sent by the uplink board, the local switching signal and the local clock thereof, and control the switching switch to perform the light in the uplink board through the control signal Module switching.
  • the programmable logic device comprises a complex programmable logic device CPLD or a field programmable gate array FPGA.
  • the PON MAC chip and the service processing unit perform signal transmission through four preset pairs of SERDES differential data channels.
  • the local clock is output by a crystal oscillator integrated in the programmable logic device or a separate crystal oscillator on the main control board other than the programmable logic device.
  • the programmable logic device is configured to generate a control signal by: when receiving the LOS signal, the programmable logic device filters the LOS signal by local clock sampling, through two Or the local clock stabilized filtered LOS signal of two or more sampling periods, and the local switching signal, the local clock, the filtered LOS signal, the AT signal, and the TX-DISABLE signal are generated to perform optical module switching in the uplink board Control signal.
  • the optical network unit further includes a preset unit, configured to pre-set a pin name corresponding to the parameter information related to the protection switching of the first optical module and the second optical module;
  • the uplink board is configured to implement the transmission protection switching related parameter signal to the main control board by sending a signal corresponding to the preset pin name as a protection switching related parameter signal to the main control board.
  • the uplink board and the main control board are connected by using a preset hardware interface.
  • the technical solution of the present application includes: separately establishing an uplink board and a main control board of the optical network unit, and further comprising: the uplink board sends a protection switching related parameter signal and an uplink serializer (SERDES) signal to the main
  • the control board controls the switching of the optical modules in the uplink board according to the parameter signals related to the protection switching, the uplink SERDES signal, and the local clock.
  • the method for transmitting the protection switching related parameter signal and the uplink SERDES signal is sent to the main control board through the uplink board, and the main control board is combined with the local clock to implement the optical module of the uplink board.
  • the automatic switching saves the duration of the switching.
  • FIG. 1 is a flowchart of a method for implementing protection switching according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of an optical network unit according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of transceiving signals of a programmable logic device according to a first embodiment of the present invention
  • FIG. 4 is a schematic diagram of transceiving signals of a programmable logic device according to a second embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for implementing protection switching according to an embodiment of the present invention, which respectively establishes an uplink board and a main control board of an optical network unit, as shown in FIG. 1 , including:
  • Step 100 The uplink board sends a parameter signal related to the protection switching and an uplink serializer (SERDES) signal to the main control board.
  • SERDES uplink serializer
  • the uplink board includes a first optical module, a second optical module, a switch, and a passive optical network (PON) medium access control (MAC) chip; the first optical module and the second optical module respectively pass different ends
  • the uplink interface is connected to an optical distribution network (ODN); the other ends of the first optical module and the second optical module are connected to the switch.
  • ODN optical distribution network
  • the uplink board sends the uplink SERDES signal to the main control board, including:
  • the switch sends the PON signal of the first optical module and the second optical module to the PON MAC chip; after being converted into the uplink SERDES signal by the PON MAC chip, the signal is transmitted to the main control board.
  • the specific conversion of the PON signal to the uplink SERDES signal by the PON MAC chip can be implemented by using the well-known technology of the present invention, and is not intended to limit the protection scope of the present invention, and details are not described herein again.
  • the first optical module and the second optical module directly send the corresponding protection switching related parameter signals to the main control board.
  • the parameter signals related to the protection switching include: LOS (Lost of Synchronous) signal and transmission signal shutdown ( TX-DISABLE) signal;
  • the parameter signals related to the protection switching include: a LOS signal and a TX-DISABLE signal;
  • the parameter signals related to the protection switching include: in-position (AT) signal, LOS signal, and TX-DISABLE. signal;
  • the protection switching related parameter signals include: AT signal, LOS signal, and TX-DISABLE signal. ;
  • the parameter signals related to the protection switching include: an AT signal, an LOS signal, and a TX-DISABLE signal;
  • the parameter signals related to the protection switching include: an AT signal, an LOS signal, and a TX-DISABLE signal.
  • the main control board of the present invention adopts a unified standard, and can be compatible with any of the six access technologies and encapsulation modes adopted by the first optical module and the second optical module, without re-implementing hardware and software. design.
  • Step 101 The main control board controls the switching of the optical modules in the uplink board according to the parameter signals related to the protection switching, the uplink SERDES signal, and the local clock.
  • the optical module includes a first optical module and a second optical module.
  • the main control board is composed of a service processing unit and a programmable logic device
  • the switching of the optical modules in the control board includes:
  • the service processing unit of the main control board receives the received uplink SERDES signal, extracts the message that the optical line terminal OLT requests the optical network unit ONU to switch, converts it into a local switching signal and sends it to the programmable logic device;
  • the programmable logic device generates a control signal according to the protection switching related parameter signal, the local switching signal and the local clock sent by the uplink board, and controls the switching switch to perform the optical module switching in the uplink board through the control signal.
  • the message that the OLT requires the ONU to switch is one or more fields in the uplink SERDES signal, specifically, which fields in the uplink SERDES signal can be arbitrarily set.
  • the converting to the local switching signal includes: searching for the local switching signal corresponding to the extracted OLT requesting the ONU switching message in the correspondence between the preset OLT requesting the ONU switching message and the local switching signal.
  • generating the control signal includes:
  • the programmable logic device When the programmable logic device receives the LOS signal, the programmable logic device filters the LOS signal by sampling the local clock, and stabilizes the filtered LOS signal by the local clock of two or more sampling periods, The local switching signal, the local clock, the filtered LOS signal, the AT signal, and the TX-DISABLE signal generate a control signal for performing optical module switching in the uplink board.
  • how to filter the LOS signal can be implemented by using a well-known technology of the present invention, and is not intended to limit the scope of the present invention, and details are not described herein again.
  • the control signal for performing the switching of the optical module in the uplink board by using the local switching signal, the local clock, the filtered LOS signal, the AT signal, and the TX-DISABLE signal includes:
  • Finding the obtained filtered LOS signal, the received AT signal, and receiving in a correspondence between a preset local switching signal, a local clock, a filtered LOS signal, an AT signal, a TX-DISABLE signal, and a control signal The control signal corresponding to the TX-DISABLE signal.
  • the following method can be used to control the switch to perform optical module switching in the uplink board: when the control signal is 0, the switch connects the PON signal of the first optical module to the PON MAC chip; when the control signal is 1 When the switch connects the PON signal of the second optical module to PON MAC chip.
  • the method further includes:
  • the uplink board presets the pin name corresponding to the parameter signal related to the protection switching of the optical module
  • the uplink board obtains the parameter signal related to the protection switching.
  • the method for transmitting the protection switching related parameter signal and the uplink SERDES signal is sent to the main control board through the uplink board, and the main control board is combined with the local clock to realize the automatic function of the optical module in the uplink board. Switching saves the time spent on switching.
  • Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions for performing any of the methods described above.
  • FIG. 2 is a structural block diagram of an optical network unit according to the present invention. As shown in FIG. 2, the method includes: an uplink board 100 and a main control board 101, including:
  • the uplink board 100 is configured to send a protection switching related parameter signal and an uplink SERDES signal to the main control board 101;
  • the main control board 101 is configured to control the switching of the optical modules in the uplink board 100 according to the parameter signals related to the protection switching, the uplink SERDES signal, and the local clock.
  • the uplink module includes an optical module 1001, a switch 1002, and a passive optical network (PON) medium access control (MAC) chip 1003.
  • the optical module includes a first optical module 10011 and a second optical module 10012.
  • the first optical module 10011 and the first optical module One end of the two optical modules 10012 is connected to the optical distribution network ODN through different uplink interfaces; the other ends of the first optical module and the second optical module are connected to the switch 1002;
  • the first optical module 10011, the second optical module 10012, and the PON MAC chip 1003 are both an Ethernet passive optical network EPON, a 10G EPON, a Gigabit passive optical network GPON, or a 10G GPON.
  • the first optical module 10011 or the second optical module 10012 is configured to send a parameter signal related to the protection switching corresponding to the main control board; and send the corresponding PON signal to the switch;
  • the switch 1002 is configured to send the PON signals of the first optical module 10011 and the second optical module 10012 to the PON MAC chip 1003;
  • the PON MAC chip 1003 is configured to convert the first optical module 10011 and the second optical module 10012.
  • the PON signal is transmitted to the main control board 101 after being the uplink SERDES signal.
  • the main control board 101 includes a service processing unit 1011 and a programmable logic device 1012;
  • the service processing unit 1011 is configured to: receive the received uplink SERDES signal, extract the message that the OLT requires the ONU to switch, convert the local switching signal to the programmable logic device and send it to the programmable logic device 1012;
  • the PON MAC chip and the service processing unit perform signal transmission through four preset pairs of SERDES differential data channels.
  • Programmable logic device 1012 includes a Complex Programmable Logic Device (CPLD) or Field Programmable Gate Array (FPGA).
  • CPLD Complex Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the local clock is output by a crystal oscillator integrated in the programmable logic device or by a separate crystal oscillator other than the programmable logic device on the main control board.
  • the selection of the crystal oscillator integrated in the programmable logic device saves the cost and the clock precision is poor.
  • the independent crystal oscillator device outside the programmable logic device has a relatively high output cost and high clock precision.
  • the programmable logic device 1012 is configured to generate a control signal according to the protection switching related parameter signal, the local switching signal and the local clock sent by the uplink board 100, and control the switching switch to perform the optical module in the uplink board 100 through the control signal. 1001 exchange.
  • the optical network unit of the present invention further includes a preset unit 102, which is configured to preset a pin name corresponding to a parameter signal related to protection switching of the first optical module and the second optical module;
  • the uplink board 100 is configured to implement the transmission protection switching related parameter signal to the main control board by sending a signal corresponding to the preset pin name as a protection switching related parameter signal to the main control board.
  • the programmable logic device 1012 is further configured to perform sampling by its own local clock, filter the LOS signal, and stabilize the filtering by the sampling period of two or more local clocks.
  • the LOS signal replaces the LOS signal in the parameter signal related to the protection switching with the stabilized filtered LOS signal, and generates a control signal for switching the optical module in the uplink board.
  • the upper board and the main board of the present invention are connected by using a preset hardware interface.
  • a unified main control board is adopted.
  • a preset hardware interface is used to improve the connection hardware interface between different uplink boards and the main control board. The compatibility reduces the number of board types in the system and saves development and maintenance costs.
  • the optical module 1001 includes the first optical module 10011 and the second optical module 10012, and the first optical module 10011 and the second optical module are respectively configured by using the EPON, the 10GE PON, the GPON, and the XGPON in the optical module 1001.
  • Module 10012 employs the corresponding access technology and is packaged in the same manner.
  • the pin name corresponding to the parameter signal related to the protection switching of the optical module is set in advance.
  • Table 1 is that the first optical module 10011 and the second optical module 10012 are both EPON, and the SFF mode is used for encapsulation or GPON and adopts the SFF mode.
  • the pin name corresponding to the parameter signal related to the protection switching of the package is performed.
  • the pin corresponding to the LOS signal is set to 8, and the pin corresponding to the TX-DISABLE signal is 13;
  • FIG. 3 is a schematic diagram of a transceiver signal of a programmable logic device according to a first embodiment of the present invention.
  • the programmable logic device 1012 receives a downlink user interface signal (ie, a local switching signal) of the service processing unit 1011, and receives the first light.
  • the LOS signal of the module 10011 and the second optical module 10012 pin 8 and the TX-DISABLE signal of the pin 13 are combined with the clock output of the crystal oscillator integrated in the programmable logic device as a local clock (or the local output of the crystal oscillator on the main control board).
  • the clock is used as a local clock to generate a switch control signal to control the switching of the optical module.
  • the optical module 1001 includes the first optical module 10011 and the second optical module 10012, and the first optical module 10011 and the second optical module are respectively configured by using the EPON, the 10GE PON, the GPON, and the XGPON in the optical module 1001.
  • Module 10012 employs the corresponding access technology and is packaged in the same manner.
  • the pin names corresponding to the parameter signals related to the protection switching of the optical module are set in advance.
  • Table 2 shows that the first optical module 10011 and the second optical module 10012 are both EPON and adopt SFP mode, or both are 10G EPON and adopt The SFP+ is encapsulated, or both are GPON and encapsulated by the SFP method, or both are 10G GPON and encapsulated by SFP+.
  • the pin names corresponding to the protection switching related parameter signals are respectively: the pin corresponding to the AT signal. 6, the corresponding pin of the LOS signal is 8, and the pin corresponding to the TX-DISABLE signal is 3;
  • FIG. 4 is a schematic diagram of a transceiver signal of a programmable logic device according to a second embodiment of the present invention.
  • the programmable logic device 1012 receives a downlink user interface signal of the service processing unit 1011, and receives the first optical module 10011 and the second light.
  • the LOS signal of the module 10012 pin 8, the TX-DISABLE signal of the pin 3, and the AT signal of the pin 6 are combined with the clock output of the crystal oscillator integrated in the programmable logic device as the local clock (or the crystal output of the main control board).
  • the local clock is used as the local clock to generate a switch control signal to control the switching of the optical module.

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  • Electromagnetism (AREA)
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Abstract

La présente invention concerne un procédé de commutation de protection et une unité de réseau optique (ONU). Le procédé consiste à établir séparément une carte de liaison montante et une carte de commande principale de l'ONU, et consiste en outre à : transmettre, au moyen de la carte de liaison montante, un signal de paramètre et un signal de convertisseur parallèle-série (SerDes) de liaison montante associé à une commutation de protection à la carte de commande principale ; et commander, au moyen de la carte de commande principale et conformément au signal de paramètre, au signal SerDes de liaison montante associé à une commutation de protection et à une horloge locale, une commutation d'un module optique dans la carte de liaison montante.
PCT/CN2016/076746 2015-05-18 2016-03-18 Procédé de commutation de protection et unité de réseau optique WO2016184242A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113923543A (zh) * 2021-09-28 2022-01-11 锐捷网络股份有限公司 Onu自适应切换方法、onu、设备及存储介质

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109194388B (zh) * 2018-08-27 2020-08-25 青岛海信宽带多媒体技术有限公司 一种光模块的控制方法及光模块
CN109547877B (zh) * 2019-01-29 2022-03-01 烽火通信科技股份有限公司 一种光通信通路倒换电路及其使用方法
CN111698582B (zh) * 2020-05-20 2022-03-25 烽火通信科技股份有限公司 一种combo光模块及多模pon系统
CN112383347B (zh) * 2020-10-29 2022-06-14 广东电网有限责任公司韶关供电局 一种基于传输网与租用公网的电力传输系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101877612A (zh) * 2010-06-30 2010-11-03 中兴通讯股份有限公司 实现无源光网络光链路保护的系统、装置及方法
CN103929236A (zh) * 2014-04-17 2014-07-16 上海斐讯数据通信技术有限公司 无源光纤网络端口保护倒换功能的业务层实现方法及系统
US20150125158A1 (en) * 2006-10-13 2015-05-07 Menara Networks, Inc. 40g/100g/200g/400g pluggable optical transceivers with advanced functionality

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101710865A (zh) * 2009-12-23 2010-05-19 中兴通讯股份有限公司 一种网络设备中主备快速倒换的方法和装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150125158A1 (en) * 2006-10-13 2015-05-07 Menara Networks, Inc. 40g/100g/200g/400g pluggable optical transceivers with advanced functionality
CN101877612A (zh) * 2010-06-30 2010-11-03 中兴通讯股份有限公司 实现无源光网络光链路保护的系统、装置及方法
CN103929236A (zh) * 2014-04-17 2014-07-16 上海斐讯数据通信技术有限公司 无源光纤网络端口保护倒换功能的业务层实现方法及系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113923543A (zh) * 2021-09-28 2022-01-11 锐捷网络股份有限公司 Onu自适应切换方法、onu、设备及存储介质
CN113923543B (zh) * 2021-09-28 2024-05-14 锐捷网络股份有限公司 Onu自适应切换方法、onu、设备及存储介质

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