WO2023216434A1 - Procédé et dispositif de découverte de topologie et de vérification de connectivité dans un système roadm - Google Patents

Procédé et dispositif de découverte de topologie et de vérification de connectivité dans un système roadm Download PDF

Info

Publication number
WO2023216434A1
WO2023216434A1 PCT/CN2022/109639 CN2022109639W WO2023216434A1 WO 2023216434 A1 WO2023216434 A1 WO 2023216434A1 CN 2022109639 W CN2022109639 W CN 2022109639W WO 2023216434 A1 WO2023216434 A1 WO 2023216434A1
Authority
WO
WIPO (PCT)
Prior art keywords
topology discovery
connectivity verification
roadm
information
port
Prior art date
Application number
PCT/CN2022/109639
Other languages
English (en)
Chinese (zh)
Inventor
刘家胜
黄丽艳
喻杰奎
徐健
范东阳
陈文�
陶红月
李竞
胡强高
顾本艳
Original Assignee
武汉光迅科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武汉光迅科技股份有限公司 filed Critical 武汉光迅科技股份有限公司
Publication of WO2023216434A1 publication Critical patent/WO2023216434A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery

Definitions

  • the present invention relates to the field of optical communication technology, and in particular to a method and device for topology discovery and connectivity verification in a ROADM system.
  • ROADM Reconfigurable optical add-drop multiplexers
  • WDM wavelength division multiplexing
  • ROADMs can add, drop, or route individual or multiple wavelengths used to carry data without having to convert optical signals from the optical domain to the electronic domain and back again.
  • ROADM can schedule services at the wavelength level of the optical network and is an important part of the intelligent all-optical network.
  • wavelength selective switches WSS
  • Both the uplink and downlink functions are implemented by WSS, but WSS is relatively expensive. Using WSS for both uplink and downlink is not conducive to cost control.
  • ROADM Boards need to be interconnected through optical fibers. The traditional way of interconnecting ROADM boards in different directions within a ROADM node is to manually connect according to a pre-planned connection diagram. However, there are many optical fiber links interconnecting ROADM boards, and there is a possibility of manual connection errors.
  • the present invention provides a method and device for topology discovery and connectivity verification in a ROADM system.
  • Wave dropping is implemented using an optical splitter to save costs; for optical fiber links between ROADM boards Connection can automatically discover the topology, connect, and verify the correctness of the connection.
  • the present invention provides a method for topology discovery and connectivity verification in a ROADM system, including:
  • the device for topology discovery and connectivity verification in any ROADM system After the device for topology discovery and connectivity verification in any ROADM system is powered on, it broadcasts its first device information to the devices for topology discovery and connectivity verification in other ROADM systems;
  • the first device information includes the identification of the source chassis. , one or more of the slot number of the source single disk and the port number of the WSS where the test optical signal is located on the source single disk;
  • the equipment for topology discovery and connectivity verification in any ROADM system receives the test light information sent from a certain port of the WSS, and saves the first device information of the topology discovery and connectivity verification equipment in other ROADM systems in the test light information. is the second device information, and the first device information and the second device information are superimposed and then sent to the devices for topology discovery and connectivity verification in other ROADM systems; the second device information includes the identification of the received chassis, the received One or more of the slot number of a single disk and the port number of the WSS where the test optical signal on the received single disk is located;
  • the device for topology discovery and connectivity verification in any ROADM system compares its first device information with the second device information in the received information. If the information is consistent, the link is paired successfully and its third device information is A piece of device information is paired and recorded with the first device information in the received information.
  • the topology discovery and connectivity verification devices in each ROADM system will compare the pairing records with the pre-entered corresponding relationships of each port to verify whether the connection is correct.
  • the distribution function of the topology discovery and connectivity verification equipment in any ROADM system in the test light transmission direction is realized through the optical splitter; the topology discovery and connectivity verification equipment in any ROADM system is used in the test light reception direction. Functionality is implemented through WSS.
  • the present invention provides another method for topology discovery and connectivity verification in a ROADM system, including:
  • topology discovery and connectivity verification equipment in any ROADM system After the topology discovery and connectivity verification equipment in any ROADM system is powered on, it broadcasts and sends test light information with its own fixed code to the topology discovery and connectivity verification equipment in other ROADM systems;
  • the topology discovery and connectivity verification equipment in any ROADM system When the topology discovery and connectivity verification equipment in any ROADM system receives the test light information sent by the topology discovery and connectivity verification equipment in other ROADM systems, it will determine the fixed code in it. If the equipment represented by the fixed code If it is the paired device preset by itself, the link pairing between the devices will be completed.
  • the topology discovery and connectivity verification equipment in any ROADM system receives the test light information sent by the topology discovery and connectivity verification equipment in other ROADM systems, it also uses the preset port switching rules to switch ports. , and record the time point when the same fixed code is received in each port, and determine whether the corresponding port is a port that matches the device represented by the corresponding fixed code based on the received time point.
  • the device for topology discovery and connectivity verification in any ROADM system receives the test light information sent by the device for topology discovery and connectivity verification in other ROADM systems, it also uses the preset port switching rules to perform port switching. switch, and record the time point when the same fixed code is received on each port, and determine whether the corresponding port is a port that matches the device represented by the corresponding fixed code based on the received time point.
  • the details include:
  • Preset port switching rules and switch one port of the WSS in the topology discovery and connectivity verification device in any ROADM system every other time period;
  • the present invention provides a device for topology discovery and connectivity verification in a ROADM system, used to implement the methods described in the first and second aspects.
  • the device includes a test optical transmission function module, a distribution function module, Wave loading function module, test light receiving function module, control function module, including:
  • the test light sending function module is used to send test light signals
  • the distribution function module is used to multiplex the service optical signal and the test optical signal sent from the test optical transmission function module and then distribute them out in multiple ways;
  • the wavelength uploading function module is used to separate the service optical signal and the test optical signal, and switch different ports to receive the test optical signal and send it to the test optical receiving function module;
  • the test light receiving function module is used to receive test light signals
  • the control function module is used to control the work of each module.
  • the distribution function module includes an optical splitter, and the optical splitter is implemented in a cascade manner or in a single device.
  • the wave uploading function module includes WSS.
  • both the distribution function module and the wavelength uploading function module further include WDM, and the WDM of the distribution function module is connected to the optical splitter to realize the multiplexing function of the service optical signal and the test optical signal;
  • the WDM of the wavelength uploading functional module is connected to the WSS to realize the demultiplexing function of the service optical signal and the test optical signal.
  • the beneficial effects of the present invention are: the use of optical splitters to achieve wave dropping, saving costs; for the optical fiber link connection between ROADM boards, the topology can be automatically discovered, connected, and the correctness of the connection can be verified , avoiding the error-prone problems of manual connection of traditional optical fiber links.
  • Figure 1 is a schematic diagram of device module connection for topology discovery and connectivity verification in a ROADM system provided in Embodiment 1 of the present invention
  • Figure 2 is a schematic diagram of the first implementation manner of the distribution function module provided in Embodiment 1 of the present invention.
  • Figure 3 is a schematic diagram of the second implementation manner of the distribution function module provided in Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of the first implementation of the wave uploading function module provided in Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of the second implementation of the wave uploading function module provided in Embodiment 1 of the present invention.
  • Figure 6 is a flow chart of a method for topology discovery and connectivity verification in a ROADM system provided in Embodiment 2 of the present invention.
  • Figure 7 is a schematic diagram of a specific scenario provided by Embodiment 2 of the present invention.
  • Figure 8 is a flow chart of a method for topology discovery and connectivity verification in another ROADM system provided in Embodiment 3 of the present invention.
  • Figure 9 is an expanded flow diagram of step 20 in Embodiment 3 of the present invention.
  • Figure 10 is a schematic structural diagram of a device for topology discovery and connectivity verification in a ROADM system provided in Embodiment 4 of the present invention.
  • Embodiment 1 of the present invention provides a device for topology discovery and connectivity verification in a ROADM system.
  • the device includes a distribution function module 110, a wave uploading function module 120, a test optical transmission function module 130, and a test optical reception module.
  • Function module 140 and control function module 150 wherein the test light sending function module 130 is used to send a test light signal; the distribution function module 110 is used to combine the service light signal and the test light sent from the test light sending function module 130.
  • the signals are multiplexed and distributed in multiple ways; the uplink functional module 120 is used to separate the service optical signal and the test optical signal, and switch different ports to receive the test optical signal and send it to the test optical receiving function module 140; the The test light receiving function module 140 is used to receive test light signals; the control function module 150 is used to control the work of each module.
  • the distribution function module 110 of this embodiment includes an optical splitter; the wavelength uploading function module 120 includes a WSS.
  • both the distribution function module 110 and the wave uploading function module 120 can also include WDM.
  • the WDM of the distribution function module 110 is connected to an optical splitter to realize the multiplexing function of service optical signals and test optical signals; the wave uploading function module
  • the 120 WDM is connected to the WSS to realize the demultiplexing function of the service optical signal and the test optical signal.
  • the distribution function module 110 of this embodiment implements the multiplexing of the test optical signal sent from the 400a direction and the service optical signal sent from the 200a direction, and combines the test optical signal sent from the 400a direction. Two parts of light are sent out from the 300a direction.
  • the signal sent from 200a in the distribution function module 110 is a WDM signal, that is, the wavelength of each signal is different.
  • the test optical signal sent from the direction of 400a is a signal with a different wavelength from the signal sent from 200a.
  • the distribution function module 110 includes a splitter.
  • the attenuation of each channel in the splitter may be the same or different.
  • Splitter can be implemented in a cascade manner or in a single device.
  • the signal sent from 200a and the signal sent from 400a in the distribution function module 110 can be combined using either a coupler or a wavelength division multiplexing device (WDM).
  • WDM wavelength division multiplexing device
  • the distribution function module 110 is implemented as shown in Figure 2.
  • Splitter combines the signals in the two directions and distributes them to n channels through 2:n conversion; when using WDM to combine
  • the implementation of the distribution function module 110 is shown in Figure 3.
  • the WDM first combines the signals in the two directions, and then the Splitter distributes the signals to n channels through 1:n conversion.
  • the signals sent from the 300a direction, a1, a2, to an are the same, that is, the signals on each port include the test light signal sent by the test light sending function module 130 from the 400a direction. and the business optical signal sent from the 200a direction.
  • the wavelength uploading function module 120 is implemented by WSS.
  • the wavelength uploading function module 120 sends the service optical signal from the 200b direction and the test optical signal from the 400b direction. Realize the separation of test optical signals and service optical signals.
  • the separation function of the test optical signal and the service optical signal in the wavelength adding function module 120 can be implemented by WSS itself or by WDM.
  • WSS itself has a separation function; when implemented through WDM, the implementation of the wave adding function module 120 is shown in Figure 5.
  • the signal that passes through the WSS is separated into a service optical signal and a test optical signal after passing through the WDM, and are sent out respectively.
  • the wavelength range of the WSS of the wavelength adding function module 120 includes the wavelength of the test optical signal sent from the 400a direction and the wavelength of the service optical signal sent from the 200a direction.
  • the WSS of the wavelength adding function module 120 continuously switches the wavelength channel of the test optical signal between b1 and bn ports, and the order of switching is not limited. It can be switched sequentially or randomly. The time that the test optical signal stays on ports b1 to bn can be the same or different.
  • Each ROADM single disk is a device as described above and includes a distribution function module 110 , wave uploading function module 120, test light sending function module 130, test light receiving function module 140, and control function module 150.
  • this embodiment uses an optical splitter to realize the wave dropping function and save costs.
  • this Embodiment 2 Based on the device for topology discovery and connectivity verification in the ROADM system provided in Embodiment 1, this Embodiment 2 provides a method for topology discovery and connectivity verification in the ROADM system, as shown in Figure 6. The method includes the following steps:
  • Step 100 After any device is powered on, it broadcasts its first device information to other devices.
  • the first device information includes one or more of the identification of the source chassis, the slot number of the source single disk, and the port number of the WSS where the test optical signal on the source single disk is located.
  • Step 200 Any device receives the test light information sent from a certain port of the WSS, saves the first device information of other devices in the test light information as the second device information, and stores the first device information and the second device information. Send to other devices after superimposition.
  • the second device information includes one or more of the received identification of the chassis, the received slot number of the single disk, and the received port number of the WSS where the test optical signal on the single disk is located.
  • Step 300 Any device compares its first device information with the second device information in the received information. If the information is consistent, the link is paired successfully, and its first device information is compared with the received second device information. The first device information in the information is paired and recorded. Through the above steps, the topology between devices in the ROADM system can be discovered.
  • step 400 may also be included: after completing link pairing, each device compares the pairing record with the pre-entered corresponding relationship of each port to verify whether the connection is correct. Through this step, the correctness of the link connection can be judged.
  • the distribution function of any device in the test light sending direction is implemented through the optical splitter; the uplink function of any device in the test light receiving direction is implemented through the WSS.
  • the topology discovery function in this embodiment is implemented as follows: as soon as a single disk is powered on, the information sent by each service disk from the test optical transmission function module 130 includes but is not limited to the following information: Source chassis The identification + the slot number of the source single disk + the port number of the WSS where the test optical signal is located on the source single disk.
  • the identification of the chassis only needs to be unique, which can be a name, a serial number, an IP address, etc.
  • the order of the above information is also not limited.
  • the test light receiving function module 140 of a single disk receives the test light information sent from one of the WSS ports b1 to bn. Specifically, the single disk of a certain port knows it, because the test light enters the port from b1 to bn by configuring the WSS channel on the single disk.
  • the received information includes the following information sent from other single disks: the identification of the source chassis + the slot number of the source single disk + the port number of the WSS where the test optical signal is located on the source single disk, save this information as: Received The identification of the chassis + the slot number of the single disk received + the port number of the WSS where the test optical signal on the received single disk is located. This information is in any order.
  • This information is then sent out together with the information of this single disk, that is, the information sent includes but is not limited to the following information: the identification of the source chassis + the slot number of the source single disk + the location of the test optical signal on the source single disk The WSS port number + the received chassis ID + the received single disk slot number + the received WSS port number where the test optical signal on the single disk is located. This information is in any order.
  • the identification of the source chassis of the single disk + the slot number of the source single disk + the port number of the WSS where the test optical signal is located on the source single disk will be combined with the received information.
  • the identification of the source chassis + the slot number of the source single disk + the port number of the WSS where the test optical signal is located on the source single disk + the identification of the received chassis + the slot number of the received single disk + the test on the received single disk The information in the WSS port number where the optical signal is located): the received chassis identification + the received single disk slot number + the received single disk test optical signal on the WSS port number where the optical signal is located information comparison, if the information is consistent , then the link is paired successfully, and the identification of the current source chassis of this single disk + the slot number of the source single disk + the port number of the WSS where the test optical signal is located on the source single disk, and the source chassis in the received information are recorded The identification + the slot number of the source single disk + the port number of the WSS where
  • Each single disk continuously performs the above operations to complete topology discovery. Finally, after completing the topology discovery of each single disk, it can be compared with the corresponding relationship of each port entered to realize the connectivity verification function.
  • the entered correspondence of each port can be from up and down the network management to each single disk, or it can be entered manually according to the pre-planned correspondence.
  • this scenario provides three devices, that is, three single disks.
  • the top device is called E.
  • E Assume that its chassis ID is E and its slot number is 1.
  • the WSS on this single disk The port number where the test light wavelength is located is b1, then the information sent by this single disk when powered on is E1b1.
  • F the device on the left below F.
  • F the chassis ID is F and its slot number is 1.
  • the current port number of the WSS test optical wavelength on this single disk is b2. Once the single disk is powered on, it will send The information is F1b2.
  • the WSS test of the upper single disk E is The optical signal is at the b1 port, and the test optical signal of the WSS of the single disk F on the left is at the b2 port, and the two are interoperable.
  • the receiving function of the single disk E above When the receiving function of the single disk E above receives the information F1b2, it will translate the received information into the received information F1b2, and add it to the original sent information for transmission, that is, the subsequent information sent is E1b1F1b2.
  • the current port of the single disk F on the left is represented as F1b2, and is compared with the last part of the information F1b2 in the received information E1b1F1b2. If the two are consistent, it means the pairing is successful. , in the specific implementation, you can send and receive more times to determine the matching result, such as more than 3 consecutive successful pairings and other restrictions.
  • the single disk F on the left will receive the E1b1 information sent by the single disk E above, translate the received information into the received information E1b1, and add it to the original sent information for transmission, that is, the subsequent information sent. It is F1b2E1b1.
  • the single disk E above receives the information F1b2E1b1 sent by the single disk F, it compares the subsequent information E1b1 with the current port number. The current port number happens to be E1b1, and the two are paired successfully.
  • the format of the above information is just one example, and in actual implementation, the format of the information is not limited.
  • the embodiment of the present invention uses an optical splitter to realize the wave dropping function and save costs; for the optical fiber link connection between ROADM boards, topology discovery and matching connection can be automatically performed, and the correctness of the connection can be verified to avoid It eliminates the error-prone problem of manual connection of traditional optical fiber links.
  • this Embodiment 3 provides another method for topology discovery and connectivity verification in the ROADM system, as shown in Figure 8.
  • the method includes the following steps:
  • Step 10 After any device is powered on, it broadcasts test light information with its own fixed code to other devices.
  • the fixed code described in this step is a code unique to each device, and the fixed code of each device is different, so that the device sending the information can be identified through the fixed code.
  • the broadcast of this step information is achieved through a beam splitter.
  • Step 20 When any device receives the test light information sent by other devices, it determines the fixed code. If the device represented by the fixed code is its own preset pairing device, the link pairing between the devices is completed. . In this step, it is necessary to first clarify that before performing topology discovery and connectivity verification, the connection relationship between devices is generally set in advance. This step uses the received fixed code to determine whether the device currently connected to itself is If it is not a device with a pre-set connection relationship, the link pairing relationship between the two will be determined, otherwise the link pairing will not be performed.
  • step 20 when any device receives the test light information sent by other devices, it can also use the preset port switching rules to switch ports, and record the same fixed code on each port. According to the received time point, it is judged whether the corresponding port is a port that matches the device represented by the corresponding fixed code.
  • This step is to take the pairing relationship between devices one step further and realize the pairing relationship between the device port and other devices.
  • the port switching in this step is implemented through WSS.
  • step 20 when any device receives the test light information sent by other devices, determines the fixed code in it, if the device represented by the fixed code is its preset paired device , then the link pairing between devices is completed) can be expanded to the following steps in detail:
  • Step 21 Preset the port switching rules and switch one WSS port in the device every other time period. For example, there are ten WSS ports, and ten time periods are preset to switch the WSS ports. The first time period, which is the first minute, is used to switch to the first port of WSS, and the second time period, which is the first minute, is used to switch to the first port of WSS. Two minutes are used to switch to the second port of WSS, and so on, until the tenth time period, which is the tenth minute, is used to switch to the tenth port of WSS.
  • Step 22 Obtain the preset matching relationship between the port and other devices, and convert the matching relationship between the port and other devices into the matching relationship between the time period and other devices. For example, if the first port of the current device's WSS is originally set to match and connect with device A, and the second port of the current device's WSS is used to match and connect with device B, then set its own port to that of other devices. The matching relationship is converted into a matching relationship with other devices in the time period, that is, the first minute is used to match and connect with device A, the second minute is used to match and connect with device B, and so on.
  • Step 23 For the fixed code sent by other devices, record the time point it is received in each port, and determine whether the time period of the time point received by the corresponding port matches the preset device. If it matches, establish the corresponding port and Corresponds to link pairing between devices.
  • the information sent by device A to this device will include the fixed code of device A. If the information is received at a certain point in the first minute after this device switches the WSS port, it means that it is related to device A. The matching connection is successful and the link pairing between the first port of the current device's WSS and device A is established. However, if the information sent by device A is received in other time periods (such as the second minute) when the device switches WSS ports, then It means that the matching connection with device A is unsuccessful. The information of device A is not sent to the preset port, but to another port. The judgment of other devices and other ports is the same and will not be described again.
  • the embodiment of the present invention uses an optical splitter to realize the wave dropping function and save costs; for the optical fiber link connection between ROADM boards, the topology can be automatically discovered, the connection is made, and the correctness of the connection is verified, avoiding the traditional Manual connection of optical fiber links is prone to errors.
  • the present invention also provides a topology discovery in the ROADM system that can be used to implement the functions of the above-mentioned methods and device modules.
  • and connectivity verification device as shown in Figure 10, which is a schematic diagram of the device architecture of this embodiment.
  • the device of this embodiment includes one or more processors 21 and memory 22 . Among them, a processor 21 is taken as an example in FIG. 10 .
  • the processor 21 and the memory 22 may be connected through a bus or other means.
  • the connection through a bus is taken as an example.
  • the memory 22 can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as the methods and modules in Embodiments 1-3.
  • the processor 21 executes various functional applications and data processing of the device by running non-volatile software programs, instructions and modules stored in the memory 22, that is, realizing topology discovery and connectivity in the ROADM system of Embodiments 1-3. Verification methods and module functions.
  • Memory 22 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the memory 22 optionally includes memory located remotely relative to the processor 21, and these remote memories may be connected to the processor 21 through a network. Examples of the above-mentioned networks include but are not limited to the Internet, intranets, local area networks, mobile communication networks and combinations thereof.
  • the program instructions/modules are stored in the memory 22.
  • the methods and module functions of topology discovery and connectivity verification in the ROADM system in the above embodiments 1-3 are performed. For example, the above Describe the various steps shown in Figures 6, 8-9.
  • the program can be stored in a computer-readable storage medium.
  • the storage medium can include: Read memory (ReadOnlyMemory, abbreviated as: ROM), random access memory (RandomAccessMemory, abbreviated as: RAM), magnetic disk or optical disk, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de découverte de topologie et de vérification de connectivité dans un système ROADM. Le procédé comprend principalement les étapes suivantes : tout dispositif de découverte de topologie et de vérification de connectivité dans un système ROADM envoie, en mode de diffusion après avoir été mis sous tension, ses propres premières informations de dispositif aux autres dispositifs de découverte de topologie et de vérification de connectivité dans le système ROADM ; ledit dispositif de découverte de topologie et de vérification de connectivité dans le système ROADM reçoit des informations de lumière de test envoyées par un certain port d'un WSS, stocke des premières informations de dispositif, figurant dans les informations de lumière de test, des autres dispositifs de découverte de topologie et de vérification de connectivité dans le système ROADM comme secondes informations de dispositif, et superpose les premières informations de dispositif et les secondes informations de dispositif et les envoie ensuite aux autres dispositifs de découverte de topologie et de vérification de connectivité dans le système ROADM ; ledit dispositif compare ses propres premières informations de dispositif aux secondes informations de dispositif figurant dans les informations reçues, et si lesdits éléments d'informations sont cohérents, un appariement de liaison réussit, et ledit dispositif enregistre d'une manière appariée ses propres premières informations de dispositif et les premières informations de dispositif figurant dans les informations reçues. La présente invention peut réduire le coût, et peut effectuer automatiquement une découverte de topologie et une connexion de mise en correspondance et vérifier le caractère correct de la connexion, ce qui permet d'éviter le problème qui est que des erreurs sont susceptibles de se produire lors de connexions manuelles de liaisons par fibres optiques classiques.
PCT/CN2022/109639 2022-05-11 2022-08-02 Procédé et dispositif de découverte de topologie et de vérification de connectivité dans un système roadm WO2023216434A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210506796.2A CN114785698B (zh) 2022-05-11 2022-05-11 一种roadm系统中拓扑发现及连接性验证的方法和设备
CN202210506796.2 2022-05-11

Publications (1)

Publication Number Publication Date
WO2023216434A1 true WO2023216434A1 (fr) 2023-11-16

Family

ID=82437365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/109639 WO2023216434A1 (fr) 2022-05-11 2022-08-02 Procédé et dispositif de découverte de topologie et de vérification de connectivité dans un système roadm

Country Status (2)

Country Link
CN (1) CN114785698B (fr)
WO (1) WO2023216434A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114785698B (zh) * 2022-05-11 2023-06-27 武汉光迅科技股份有限公司 一种roadm系统中拓扑发现及连接性验证的方法和设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160099851A1 (en) * 2014-10-01 2016-04-07 Ciena Corporation Method and system for optical connection validation in a reconfigurable optical add-drop multiplexer (roadm) node
CN109088777A (zh) * 2018-09-14 2018-12-25 武汉光迅科技股份有限公司 一种roadm业务侧光纤连接的匹配装置和方法
US20200028765A1 (en) * 2018-07-18 2020-01-23 Google Llc Connectivity verification testing and topology discovery
US10932019B1 (en) * 2019-12-30 2021-02-23 Xieon Networks S.À.R.L. System and method for topology discovery and fiber continuity verification in network
CN114785698A (zh) * 2022-05-11 2022-07-22 武汉光迅科技股份有限公司 一种roadm系统中拓扑发现及连接性验证的方法和设备

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1866863A (zh) * 2005-11-03 2006-11-22 华为技术有限公司 一种网络设备的邻居发现方法及系统
US7778547B2 (en) * 2006-06-01 2010-08-17 Telcordia Technologies, Inc. Code grouping for optical networks
CN1913526B (zh) * 2006-08-25 2010-05-12 华为技术有限公司 一种波分传输系统链路自动发现的方法
US20090319673A1 (en) * 2008-04-24 2009-12-24 International Business Machines Corporation Automated Wireless Device Pairing
CN101877728B (zh) * 2010-06-25 2014-12-31 中兴通讯股份有限公司 网络地址转换转发方法及装置
CN103023563B (zh) * 2012-11-02 2016-04-06 江苏威尔信通光电技术有限公司 一种光缆监控方法
US8811820B2 (en) * 2012-12-30 2014-08-19 Telefonaktiebolaget L M Ericsson (Publ) Optical port discovery in a WDM optical network
US9780908B2 (en) * 2013-02-15 2017-10-03 Alcatel Lucent Optical network terminal (ONT) wavelength tuning and correpsonding calibration procedure
CN103997368B (zh) * 2013-02-18 2017-03-15 中兴通讯股份有限公司 无源光网络链路检测方法及装置
CN105117637B (zh) * 2015-10-10 2019-03-08 北京世纪龙脉科技有限公司 一种连接控制方法及装置、安全认证设备
CN107104832B (zh) * 2017-04-20 2023-06-16 上海欣诺通信技术股份有限公司 跨洋复用段环网上自动发现跨节点业务拓扑的方法和设备
US10615901B2 (en) * 2017-06-30 2020-04-07 Juniper Networks, Inc. Apparatus, systems, and methods for optical channel management
CN108462600A (zh) * 2017-07-18 2018-08-28 上海欣诺通信技术有限公司 网元设备通信和发现方法、网元设备及网管系统
JP2019028627A (ja) * 2017-07-28 2019-02-21 公立大学法人岩手県立大学 送受信システム、ペアリング方法及びペアリングプログラム
CN108270883B (zh) * 2018-02-02 2019-11-15 深圳曼顿科技有限公司 可自动分配设备通讯地址码的方法、断路器及存储介质
CN112019262B (zh) * 2020-08-13 2022-04-05 武汉光迅科技股份有限公司 通信站点、光通信系统、数据传输方法及存储介质
CN215871421U (zh) * 2021-08-05 2022-02-18 国网青海省电力公司信息通信公司 光纤监测系统
CN113541779A (zh) * 2021-08-05 2021-10-22 国网青海省电力公司信息通信公司 光纤监测系统
CN114338460A (zh) * 2021-12-27 2022-04-12 广州由我科技股份有限公司 一种蓝牙设备的配对测试系统及方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160099851A1 (en) * 2014-10-01 2016-04-07 Ciena Corporation Method and system for optical connection validation in a reconfigurable optical add-drop multiplexer (roadm) node
US20200028765A1 (en) * 2018-07-18 2020-01-23 Google Llc Connectivity verification testing and topology discovery
CN109088777A (zh) * 2018-09-14 2018-12-25 武汉光迅科技股份有限公司 一种roadm业务侧光纤连接的匹配装置和方法
US10932019B1 (en) * 2019-12-30 2021-02-23 Xieon Networks S.À.R.L. System and method for topology discovery and fiber continuity verification in network
CN114785698A (zh) * 2022-05-11 2022-07-22 武汉光迅科技股份有限公司 一种roadm系统中拓扑发现及连接性验证的方法和设备

Also Published As

Publication number Publication date
CN114785698A (zh) 2022-07-22
CN114785698B (zh) 2023-06-27

Similar Documents

Publication Publication Date Title
US10666377B2 (en) Method and apparatus for matching fiber connections for ROADM service
CA2292942C (fr) Interconnexion de canal optique pour les systemes de telecommunications de technologie mlo (multiplexage en longueur d'onde) ayant une structure de commutation spatial double de flux optiques strictement non-bloquantet d'unites fonctionnels interposes sur des canaux simples
US8995832B2 (en) Transponder Aggregator-based optical loopback in a MD-ROADM
US9654209B2 (en) Low cost secure ROADM branching unit with redundancy protection
JP2001148875A (ja) 光クロスコネクトおよび光信号が光クロスコネクトの入力から出力に経路選択されたことを確認する方法および光クロスコネクトにおける接続を確認する方法
CN101500182B (zh) 用于控制在光网络中建立连接的方法及光网络单元
US20070195693A1 (en) Method and device for implementing och-spring in wavelength division multiplexing systems
JP2011527155A (ja) デジタルおよび光エキスプレススルーノードを横断するリンクダイバーシティおよび負荷バランス
CN106031064A (zh) 一种应用于多波长无源光网络的通信方法、装置及系统
WO2023216434A1 (fr) Procédé et dispositif de découverte de topologie et de vérification de connectivité dans un système roadm
WO2014022972A1 (fr) Procédé et dispositif pour obtenir une relation de connexion de fibre interne dans un multiplexeur à insertion-extraction optique reconfigurable
EP2592790B1 (fr) Procédé et dispositif pour obtenir une information de route d'un réseau multicouches électro-optique
US20030058496A1 (en) Topology discovery in optical WDM networks
US10498479B2 (en) Reconfigurable add/drop multiplexing in optical networks
CN107819522B (zh) Roadm设备、光网络系统以及传输方法
US20020105693A1 (en) Optical transmission unit and system
CN113193936B (zh) 一种支持线路id功能的多播光开关组件及其实现方法
CN108702330B (zh) 一种建立层间链路绑定关系的方法及装置
Xu et al. Emergent optical network integration and control of multi-vendor optical networks for quick disaster recovery
CN117156326B (zh) 保护倒换方法、装置及olt设备
US10778326B1 (en) Management and control plane redundancy in a disaggregated network element
JP2008259129A (ja) 光クロスコネクト装置を用いた光ネットワークシステム
Ghelfi et al. Optical cross connects architecture with per-node add&drop functionality
WO2022268040A1 (fr) Procédé de découverte de connexion par fibre optique, dispositif électronique et support d'enregistrement lisible par ordinateur
JP5398646B2 (ja) 光経路制御方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22941376

Country of ref document: EP

Kind code of ref document: A1