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CN108494474A - Realize that business is superimposed the method and system of pretection switch using OAM message - Google Patents

Realize that business is superimposed the method and system of pretection switch using OAM message Download PDF

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Publication number
CN108494474A
CN108494474A CN201810247192.4A CN201810247192A CN108494474A CN 108494474 A CN108494474 A CN 108494474A CN 201810247192 A CN201810247192 A CN 201810247192A CN 108494474 A CN108494474 A CN 108494474A
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CN
China
Prior art keywords
path
layer
oam message
business
packaging information
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
CN201810247192.4A
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Chinese (zh)
Inventor
饶冀
王艳芳
冯健
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Fiberhome Telecommunication Technologies Co Ltd
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Fiberhome Telecommunication Technologies Co Ltd
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Priority to CN201810247192.4A priority Critical patent/CN108494474A/en
Publication of CN108494474A publication Critical patent/CN108494474A/en
Withdrawn legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03Arrangements for fault recovery
    • H04B10/032Arrangements for fault recovery using working and protection systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0631Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/22Alternate routing

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

It realizing that business is superimposed the method and system of pretection switch using OAM message the invention discloses a kind of, is related to the superposition protection service communication field in optical-fiber network.The flow of this method is:S101:Configure the masterslave switchover path of internal layer and outer layer superposition protection;S102:After the packaging information that adds paths in OAM message, OAM message is embedded in business forward-path;S103:When business forward-path alerts, according to the path forwarding information in OAM message, OAM message is forwarded.The present invention will not have any impact to other layers and associated effect when realizing every layer of path forwarding OAM message, not only significantly reduce the degree of coupling between inside and outside layer service, conducive to follow-up maintenance and extension, and the operating process of directly forwarding OAM message is very simple, and then masterslave switchover speed is significantly improved, consequently also improve work efficiency.

Description

Realize that business is superimposed the method and system of pretection switch using OAM message
Technical field
The present invention relates to the superposition protection service communication fields in optical-fiber network, and in particular to a kind of to be realized using OAM message Business is superimposed the method and system of pretection switch.
Background technology
With Internet technology flourish and it is universal, it more and more profoundly change people study, work and Life.In order to preferably comply with the development trend of internet, the advantage of internet, the net of telecom operators are played to greatest extent Network scale is increasing, and structure also becomes increasingly complex, while the requirement to network stabilization is also higher and higher.
In order to meet demand of the operator to the high stability of network, break down when working traffic occurs in carrier network When (such as access ring primary path is disconnected fine, primary aggregation node driver chuck, primary aggregation node power down etc.), need at timely pair therefore Masterslave switchover is rapidly completed while being detected in barrier, can quickly be repaired with guarantee business.Therefore, it is added in a network It is relevant to protect to realize that fault detect and masterslave switchover are just particularly important.
Currently, common network main-apparatus protection mode is main for LSP (Label Switching Path, label switched path) It is standby to switch (i.e. LSP1:1), PW (Pseudo-Wire, pseudo-wire) masterslave switchover (i.e. PW1:1)、ODUK(Optical channel Data unit, light-path data cell) masterslave switchover (i.e. ODUK1+1) etc..If by above-mentioned single protection side in network transmission Formula carries out the superposition protection (such as internal layer is LSP masterslave switchovers, and outer layer is PW masterslave switchovers) of ectonexine as needed, then can be with The function of more abundant network, realizes better laser propagation effect, and then improves the economy of network, ensures the safety of network. In the case where being superimposed protection, it is desirable that when masterslave switchover occurs for outer layer protection path, the OAM modules of internal layer cannot generate announcement It is alert, it is also necessary to which that memory Protection path is switched to Protection path corresponding with outer layer.
In the case where being superimposed protection, switching method when one layer of Protection path breaks down is:OAM(Operation Administration Maintenance, Operations, Administration and Maintenance) module by way of software counter-brush, obtains other layers (packaging information is only obtained, just can determine that the transmitting path and mode of OAM message) after the packaging information in path, then by OAM Message and business switch to an other normal work path from failure path together and (such as switch to spare road by primary path Diameter).
But by way of software counter-brush, when obtaining other layers of path packaging information, ectonexine industry not only will increase The degree of coupling between business is unfavorable for follow-up maintenance and extension, and operating process is more complicated, and then leads to masterslave switchover speed Relatively slow, working efficiency is relatively low.
Invention content
In view of the deficiencies in the prior art, present invention solves the technical problem that being:Realized using OAM message When business is superimposed pretection switch, how the degree of coupling between layer service inside and outside reduction while, improve masterslave switchover speed.This Invention not only significantly reduces the degree of coupling between inside and outside layer service, is conducive to follow-up maintenance and extension, and operating process is compared Simply, working efficiency is higher.
To achieve the above objectives, the method provided by the invention for realizing that business is superimposed pretection switch using OAM message, including Following steps:
S101:The masterslave switchover path for configuring internal layer and outer layer superposition protection, goes to S102;
S102:After the packaging information that adds paths in OAM message, OAM message is embedded in business forward-path, is gone to S103;
S103:When business forward-path alerts, according to the path forwarding information in OAM message, to OAM message into Row forwarding.
Based on the above technical solution, the flow of S101 includes:After business configuration establishment business, according to business Relevant information configuration internal layer and outer layer superposition masterslave switchover path;The masterslave switchover path of internal layer and outer layer superposition includes outer Layer primary path and outer layer backup path under outer layer primary path and outer layer backup path, is respectively configured with 1 internal layer primary path With 1 internal layer backup path.
Based on the above technical solution, path packaging information described in S102 is the packaging information in outermost layer path ID, the packaging information ID in outermost layer path is corresponding with the preconfigured package information table in outermost layer path, outermost layer path Package information table includes the packaging information in outermost layer path and the packaging information in the internal layer path in neighbouring outermost layer path ID;The packaging information ID in internal layer path is corresponding with the preconfigured package information table in this layer of path, the envelope in this layer of path Dress information table includes the packaging information in this layer of path, when this layer of path is non-innermost layer path, the packaging information in this layer of path Table further includes the packaging information ID in the internal layer path in neighbouring this layer of path.
Based on the above technical solution, further include switching ID in path in the package information table in every layer of path, path is cut ID is changed for informing current path type.
Based on the above technical solution, the flow of S103 includes:When business forward-path alerts, according to The packaging information ID in the outermost layer path in OAM message obtains the packaging information in equivalent layer path, according to the envelope in equivalent layer path Information is filled, OAM message is forwarded.
The system provided by the invention for being realized that business is superimposed pretection switch using OAM message, including masterslave switchover path are matched Module, OAM message creation module and OAM message forwarding module are set,
Masterslave switchover path configuration module is used for:Configure the masterslave switchover path of internal layer and outer layer superposition protection;
OAM message creation module is used for:After the packaging information that adds paths in OAM message, OAM message insertion business is turned Send out path;
OAM message forwarding module is used for:When business forward-path alerts, forwarded according to the path in OAM message Information is forwarded OAM message.
Based on the above technical solution, the flow of masterslave switchover path configuration module includes:Matched according to business After setting establishment business, the masterslave switchover path of internal layer and outer layer superposition is configured according to the relevant information of business;Internal layer and outer stack The masterslave switchover path added includes outer layer primary path and outer layer backup path, under outer layer primary path and outer layer backup path, Respectively it is configured with 1 internal layer primary path and 1 internal layer backup path.
Based on the above technical solution, the path packaging information of the OAM message creation module addition is outermost layer The packaging information ID in path, the package information table pair of the packaging information ID in outermost layer path and preconfigured outermost layer path It answers, the package information table in outermost layer path includes the packaging information in outermost layer path and the internal layer in neighbouring outermost layer path The packaging information ID in path;The packaging information ID in internal layer path is corresponding with the preconfigured package information table in this layer of path, institute The package information table for stating this layer of path includes the packaging information in this layer of path, when this layer of path is non-innermost layer path, the layer The package information table in path further includes the packaging information ID in the internal layer path in neighbouring this layer of path.
Based on the above technical solution, further include switching ID in path in the package information table in every layer of path, path is cut ID is changed for informing current path type.
Based on the above technical solution, the flow of the OAM message forwarding module includes:When business forward-path is sent out When raw alarm, according to the packaging information ID in the outermost layer path in OAM message, the packaging information in equivalent layer path is obtained, according to The packaging information in equivalent layer path, is forwarded OAM message.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention is embedded in the OAM reports containing path packaging information before business transmission, in advance in the forward-path of business Text, on this basis, the present invention directly forward the OAM message of existing path packaging information when business carries out masterslave switchover .Therefore, it will not have any impact to other layers and associated effect when the present invention realizes every layer of path forwarding OAM message Fruit is not in the situation for the path packaging information for obtaining other layers in the prior art by way of software counter-brush, not only shows The degree of coupling reduced between inside and outside layer service is write, follow-up maintenance and extension are conducive to, and directly forwards the operation of OAM message Cheng Feichang is simple, and then significantly improves masterslave switchover speed, consequently also improves work efficiency.
Description of the drawings
Fig. 1 is to realize that business is superimposed the flow chart of the method for pretection switch using OAM message in the embodiment of the present invention;
Fig. 2 is the schematic diagram of OAM message forwarding model in the embodiment of the present invention four;
Fig. 3 is the flow chart that OAM message forwards in the embodiment of the present invention four;
Fig. 4 is the schematic diagram of OAM message forwarding model in the embodiment of the present invention five;
Fig. 5 is the flow chart that OAM message forwards in the embodiment of the present invention five.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and embodiments.
It is shown in Figure 1, the method for realizing business superposition pretection switch using OAM message in the embodiment of the present invention, packet Include following steps:
S101:The masterslave switchover path for configuring internal layer and outer layer superposition protection, goes to S102.
S102:After the packaging information that adds paths in OAM message, OAM message is embedded in business forward-path, is gone to S103。
S103:When business forward-path alerts, according to the path forwarding information in OAM message, to OAM message into Row forwarding.
Below by 6 embodiments, the present invention is described in detail.
Embodiment one:
The detailed process of S101 is:After Cross Trade is according to business configuration establishment business, configured according to the relevant information of business The masterslave switchover path of internal layer and outer layer superposition.The masterslave switchover path of internal layer and outer layer superposition includes outer layer primary path and outer Layer backup path under outer layer primary path and outer layer backup path, is respectively configured with 1 internal layer primary path and 1 internal layer is spare Path.
Embodiment two:
Path packaging information in S102 is the packaging information ID in outermost layer path, the packaging information ID in outermost layer path with The package information table in preconfigured outermost layer path corresponds to, and the package information table in outermost layer path includes outermost layer path The packaging information ID in the internal layer path in packaging information and neighbouring outermost layer path.The packaging information ID in internal layer path in advance The package information table in this layer of path of configuration corresponds to, and the package information table in this layer of path includes the encapsulation letter in this layer of path Breath, when this layer of path is non-innermost layer path, the package information table in the floor path further includes the internal layer road in the neighbouring floor path The packaging information ID of diameter.
Further include path switching ID and service protection type in the package information table in every layer of path, path switching ID is for accusing Know current path type (current path is primary path or backup path), such as path switching ID is that 0 expression current path is Primary path, it is backup path that path switching ID, which is 1 expression current path,;Service protection type is PW1:1、LSP1:1 or ODUK1+1 etc..
Embodiment three:
On the basis of embodiment two, the detailed process of S103 is:When business forward-path alerts, according to OAM The packaging information ID in the outermost layer path in message obtains the packaging information in equivalent layer path, according to the encapsulation in equivalent layer path Information is forwarded OAM message;It " according to the packaging information ID in the outermost layer path in OAM message, obtains in actual use The packaging information of equivalent layer Route Routes " is to consult flow (consulting mode referring to embodiment two), i.e., directly forwarding OAM message is It can.Equivalent layer path is the current layer path alerted;Such as business forward-path is total up to 5 layers, the 2nd layer of path is accused Alert, then equivalent layer path is the 2nd layer of path.
Example IV:Shown in Fig. 2 and Fig. 3, the present invention utilizes OAM to PW masterslave switchovers superposition LSP masterslave switchovers Message realizes that the method that business is superimposed pretection switch is:
S201:Cross Trade creates MPLS (Multi-Protocol Label Switching, multi-protocols according to business configuration Tag switching) after business, according to 2 stacking of the relevant information of business configuration plus masterslave switchover path:Outer layer is PW primary paths With PW backup paths, under PW primary paths and PW backup paths, it is each equipped with LSP primary paths and LSP backup paths, is gone to S202。
S202:PW layers FEC ID (Forwarding equivalence class, forwarding etc. are added in OAM message Valence class, i.e., outermost path packaging information ID) after, OAM message insertion business forward-path (PW primary paths) is gone to S203。
PW layers of FEC ID are corresponding with the preconfigured package information table in the path PW layers of, the package information table in PW layers of path Include PW layers of path packaging information, PW layers path switch ID and LSP layer ID, LSP layer of FEC FEC ID and in advance The package information table in the LSP layers path first configured corresponds to, and the package information table in LSP layers of path includes the encapsulation in LSP layers of path Information and PW layers of path switch ID, and path switches ID and 1 TUNNEL containing LSP primary paths and LSP backup paths Protection group corresponds to, and it is 1 that LSP primary paths, which are 0, LSP backup paths, in TUNNEL protection groups.
S203:When PW primary paths alert, business is switched into PW backup paths by PW primary paths, according to PW OAM message is forwarded to PW backup paths, the roads LSP by the FEC ID of the PW layers in the OAM message of primary path by PW primary paths It is identical as the paths PW alarming processing mode when diameter alerts.
Embodiment five:Shown in Fig. 4 and Fig. 5, the present invention is superimposed LSP masterslave switchovers the utilization of ODUK masterslave switchovers OAM message realizes that the method that business is superimposed pretection switch is:
S301:Cross Trade creates POTN (Packet Optical Transport Network, grouping according to business configuration Optical transport network) after mixed service, according to 2 stacking of the relevant information of business configuration plus masterslave switchover path:Outer layer is LSP master With path and LSP backup paths, under LSP primary paths and LSP backup paths, it is each equipped with ODUK main ports and ODUN is spare Port goes to S302.
S302:LSP layers FEC ID (Forwarding equivalence class, forwarding etc. are added in OAM message Valence class, i.e., outermost path packaging information ID) after, OAM message embedding data packet forward-path (LSP primary paths) turns To S303.
LSP layers of FEC ID are corresponding with the preconfigured package information table in the path LSP layers of, the encapsulation letter in LSP layers of path Breath table includes the MC ID of the packaging information in LSP layers of path, the exit port information of LSP layers of path switching ID and ODUK (multicast ID), MC ID are corresponding with preconfigured multicast list.
S303:When the primary paths LSP alert, data packet is switched into LSP backup paths by LSP primary paths, According to the MC ID in the OAM message of LSP primary paths, the multicast list of ODUK is obtained, ODUK protections are obtained according to multicast list The active and standby exporting Member of group, and data packet and OAM message are forwarded from active and standby member port to realize ODUK 1+1 respectively Protect originating party to service concurrence.
Embodiment six:
A kind of system for being realized that business is superimposed pretection switch using OAM message, the system are also provided in the embodiment of the present invention Including masterslave switchover path configuration module, OAM message creation module and OAM message forwarding module.
Masterslave switchover path configuration module is used for:The masterslave switchover path of internal layer and outer layer superposition protection is configured, it is specific to flow Cheng Wei:After business configuration establishment business, the masterslave switchover road of internal layer and outer layer superposition is configured according to the relevant information of business Diameter;The masterslave switchover path of internal layer and outer layer superposition includes outer layer primary path and outer layer backup path, outer layer primary path and Under outer layer backup path, it is respectively configured with 1 internal layer primary path and 1 internal layer backup path.
OAM message creation module is used for:After the packaging information that adds paths in OAM message, OAM message insertion business is turned Send out path;Path packaging information be outermost layer path packaging information ID, the packaging information ID in outermost layer path be pre-configured with The package information table in outermost layer path correspond to, the package information table in outermost layer path includes that the encapsulation in outermost layer path is believed The packaging information ID in the internal layer path in breath and neighbouring outermost layer path;The packaging information ID in internal layer path with it is preconfigured The package information table in this layer of path corresponds to, and the package information table in this layer of path includes the packaging information in this layer of path, when this When layer path is non-innermost layer path, the package information table in this layer of path further includes the encapsulation in the internal layer path in neighbouring this layer of path Information ID.Further include path switching ID and service protection type in the package information table in every layer of path, path switching ID is for accusing Know current path type.
OAM message forwarding module is used for:When business forward-path alerts, forwarded according to the path in OAM message Information is forwarded OAM message;Detailed process is:When business forward-path alerts, according in OAM message most The packaging information ID in outer layer path obtains the packaging information in equivalent layer path, according to the packaging information in equivalent layer path, to OAM Message is forwarded.
It should be noted that:System provided in an embodiment of the present invention is when carrying out intermodule communication, only with above-mentioned each function The division progress of module, can be as needed and by above-mentioned function distribution by different function moulds for example, in practical application Block is completed, i.e., the internal structure of system is divided into different function modules, to complete all or part of work(described above Energy.
Further, the present invention is not limited to the above-described embodiments, for those skilled in the art, Without departing from the principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the present invention Protection domain within.The content not being described in detail in this specification belongs to existing skill well known to professional and technical personnel in the field Art.

Claims (10)

1. a kind of method for realizing that business is superimposed pretection switch using OAM message, it is characterised in that:This method includes following step Suddenly:
S101:The masterslave switchover path for configuring internal layer and outer layer superposition protection, goes to S102;
S102:After the packaging information that adds paths in OAM message, OAM message is embedded in business forward-path, goes to S103;
S103:When business forward-path alerts, according to the path forwarding information in OAM message, OAM message is turned Hair.
2. the method for realizing business superposition pretection switch using OAM message as described in claim 1, it is characterised in that:S101 Flow include:After business configuration establishment business, it is superimposed according to the relevant information of business configuration internal layer and outer layer active and standby Switch path;The masterslave switchover path of internal layer and outer layer superposition includes outer layer primary path and outer layer backup path, and outer layer is primary Under path and outer layer backup path, it is respectively configured with 1 internal layer primary path and 1 internal layer backup path.
3. the method for realizing business superposition pretection switch using OAM message as described in claim 1, it is characterised in that:S102 Described in path packaging information be outermost layer path packaging information ID, the packaging information ID in outermost layer path with it is preconfigured The package information table in outermost layer path corresponds to, the package information table in outermost layer path include the packaging information in outermost layer path, And the packaging information ID in the internal layer path in neighbouring outermost layer path;The packaging information ID in internal layer path and the preconfigured layer The package information table in path corresponds to, and the package information table in this layer of path includes the packaging information in this layer of path, when the floor road When diameter is non-innermost layer path, the package information table in this layer of path further includes the packaging information in the internal layer path in neighbouring this layer of path ID。
4. the method for realizing business superposition pretection switch using OAM message as claimed in claim 3, it is characterised in that:Every layer Further include switching ID in path in the package information table in path, path switching ID is for informing current path type.
5. the method for realizing business superposition pretection switch using OAM message as claimed in claim 3, it is characterised in that:S103 Flow include:When business forward-path alerts, according to the packaging information ID in the outermost layer path in OAM message, obtain The packaging information for taking equivalent layer path is forwarded OAM message according to the packaging information in equivalent layer path.
6. a kind of system for realizing that business is superimposed pretection switch using OAM message, it is characterised in that:The system includes masterslave switchover Path configuration module, OAM message creation module and OAM message forwarding module;
Masterslave switchover path configuration module is used for:Configure the masterslave switchover path of internal layer and outer layer superposition protection;
OAM message creation module is used for:After the packaging information that adds paths in OAM message, OAM message insertion business is forwarded into road Diameter;
OAM message forwarding module is used for:When business forward-path alerts, according to the path forwarding information in OAM message, OAM message is forwarded.
7. the system for realizing business superposition pretection switch using OAM message as claimed in claim 6, it is characterised in that:It is described The flow of masterslave switchover path configuration module includes:After business configuration establishment business, configured according to the relevant information of business The masterslave switchover path of internal layer and outer layer superposition;The masterslave switchover path of internal layer and outer layer superposition includes outer layer primary path and outer Layer backup path under outer layer primary path and outer layer backup path, is respectively configured with 1 internal layer primary path and 1 internal layer is spare Path.
8. the system for realizing business superposition pretection switch using OAM message as claimed in claim 6, it is characterised in that:It is described The path packaging information of OAM message creation module addition is the packaging information ID in outermost layer path, the encapsulation letter in outermost layer path Breath ID is corresponding with the preconfigured package information table in outermost layer path, and the package information table in outermost layer path includes outermost layer The packaging information ID in the internal layer path in the packaging information in path and neighbouring outermost layer path;The packaging information ID in internal layer path Corresponding with the preconfigured package information table in this layer of path, the package information table in this layer of path includes the envelope in this layer of path Information is filled, when this layer of path is non-innermost layer path, the package information table in this layer of path further includes the interior of neighbouring this layer of path The packaging information ID in layer path.
9. the system for realizing business superposition pretection switch using OAM message as claimed in claim 8, it is characterised in that:Every layer Further include switching ID in path in the package information table in path, path switching ID is for informing current path type.
10. the system for realizing business superposition pretection switch using OAM message as claimed in claim 8, it is characterised in that:It is described The flow of OAM message forwarding module includes:When business forward-path alerts, according to the outermost layer path in OAM message Packaging information ID, obtain the packaging information in equivalent layer path, according to the packaging information in equivalent layer path, OAM message carried out Forwarding.
CN201810247192.4A 2018-03-23 2018-03-23 Realize that business is superimposed the method and system of pretection switch using OAM message Withdrawn CN108494474A (en)

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CN109962746A (en) * 2019-03-18 2019-07-02 烽火通信科技股份有限公司 A kind of common interface and its design method for network service
CN109962746B (en) * 2019-03-18 2020-08-25 烽火通信科技股份有限公司 Public interface for network service and design method thereof
CN112565071A (en) * 2019-09-10 2021-03-26 烽火通信科技股份有限公司 Three-level protection implementation method and system
CN113873360A (en) * 2021-09-15 2021-12-31 烽火通信科技股份有限公司 System and method for improving VC protection efficiency carried in OTN
CN113873360B (en) * 2021-09-15 2023-05-12 烽火通信科技股份有限公司 System and method for improving VC protection efficiency carried in OTN

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Application publication date: 20180904