CN108737188A - A kind of net card failure switching system - Google Patents
A kind of net card failure switching system Download PDFInfo
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- CN108737188A CN108737188A CN201810508611.5A CN201810508611A CN108737188A CN 108737188 A CN108737188 A CN 108737188A CN 201810508611 A CN201810508611 A CN 201810508611A CN 108737188 A CN108737188 A CN 108737188A
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- network interface
- controller
- module
- connect
- switching
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Classifications
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- 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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- 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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
Abstract
The present invention provides a kind of net card failure switching system, including：Controller, MAC module, handover module and at least two Network Interface Modules；The network interface connecting pin that quantity of the handover module equipped with data connection end, control terminal and quantity and Network Interface Module matches；Controller is connected by the data connection end of MAC module and handover module, and each Network Interface Module is connect with the network interface connecting pin of handover module respectively；Controller is communicated to connect with one of Network Interface Module；Controller is also connect with control terminal；When the Network Interface Module communicated to connect with controller breaks down, controller sends switching control instruction to the control terminal of handover module, and handover module is made to switch the Network Interface Module currently communicated to connect with controller.Can be under the premise of not increasing network interface card, the structure by improving network interface card itself realizes the fail-over feature of network.
Description
Technical field
The present invention relates to server field more particularly to a kind of net card failure switching systems.
Background technology
Cloud computing era high-performance server widely apply, more and more network servers all can use double netcard (or
Double network interfaces) access, it is in major state all the way, is in all the way from state；When master port (Active) down falls, from port
(backup) major state is taken over.The failure of network generally mostly occurs on the outside of network interface card I/O, such as cable poor contact (connector pine
It is dynamic), medium layer cable disconnection itself and electrostatic broken by lightning etc..I.e. failure mostly occurs in PHY physical layers and with external medium
Layer.
The existing mode for solving network failure is usually two-way MAC (Media/Medium Access Control media
Access control, or the physical address for network) and PHY (physical layer of PHYPhysical Layer, that is, network) do redundancy, it is real
Existing failover.The shortcomings that this mode is, when one throw the net card (port) be in failure state when, the MAC not failed is but only
Down states can be in, occupy the PCIe channel resources of CPU in vain.
Invention content
In order to overcome above-mentioned deficiency in the prior art, the present invention provides a kind of net card failure switching system, including：Control
Device, MAC module, handover module and at least two Network Interface Modules；
The network that quantity of the handover module equipped with data connection end, control terminal and quantity and Network Interface Module matches
Interface connection end；
Controller by the data connection end of MAC module and handover module connect, each Network Interface Module respectively with cut
Change the mold the network interface connecting pin connection of block；Controller is communicated to connect with one of Network Interface Module；Controller also with control
End connection processed；When the Network Interface Module communicated to connect with controller breaks down, control terminal of the controller to handover module
Switching control instruction is sent, handover module is made to switch the Network Interface Module currently communicated to connect with controller.
Preferably, handover module includes：The PHY that first switching switch and quantity and the quantity of Network Interface Module match
Module；
First switching switch setting data connection end, the network that control terminal and the quantity of quantity and PHY modules match
Interface connection end；
Controller is connect by MAC module with the data connection end of the first switching switch, and each PHY modules are respectively with first
The network interface connecting pin connection of switching switch；
Each PHY modules are corresponded to be communicated to connect with a Network Interface Module；
Controller passes sequentially through MAC module, the first switching switch and one of PHY modules and Network Interface Module is logical
Letter connection；
For controller by being connect with control terminal, control the first switching switch executes switching action.
Preferably, handover module includes：Second switching switch and PHY modules；
Second switching switch setting data connection end, what control terminal and quantity and the quantity of Network Interface Module matched
Network interface connecting pin；
Controller passes sequentially through MAC module and PHY modules and is connect with the data connection end of the second switching switch, the second switching
Each network interface connecting pin of switch corresponds to and is connect with a Network Interface Module
Controller passes sequentially through MAC module, PHY modules and the second switching switch and a Network Interface Module communication link
It connects；
For controller by being connect with control terminal, control the second switching switch executes switching action.
Preferably, Network Interface Module is using USB interface or RJ45 network interfaces or RS232 serial ports or console mouthfuls.
Preferably, further include：Fault detection module；
Fault detection module is connect with controller, fault detection module for detect Network Interface Module and cable port it
Between connection status send out network to controller when fault detection module detects that cable port loosens Network Interface Module
Fault-signal, controller send switching control instruction to the control terminal of handover module, make handover module switching currently and controller
The Network Interface Module of communication connection.
Preferably, controller is additionally operable to when receiving the data frame with frame head and postamble, when in the frame for receiving data frame
After head, when not receiving the postamble of the data frame after preset duration, controller is sent to the control terminal of handover module
Switching control instructs, and so that handover module is switched the Network Interface Module currently communicated to connect with controller, receives the number again
According to frame.
Preferably, further include：Network state lamp detection module；
Network state lamp detection module is connect with controller, and network state lamp detection module is for detecting network state lamp
State sends out network failure signal when network state lamp detection module detects that fault network status lamp is bright to controller, control
Device processed sends switching control instruction to the control terminal of handover module, and handover module is made to switch the net currently communicated to connect with controller
Network interface module.
Preferably, controller is additionally operable to every by a preset duration, is received the heartbeat package informatin that client is sent out, is worked as process
When one preset duration does not receive the heartbeat package informatin that client is sent out, controller sends switching control to the control terminal of handover module
System instruction, makes handover module switch the Network Interface Module currently communicated to connect with controller, receives the client hair again
The heartbeat package informatin gone out.
Preferably, controller is additionally operable to encode the network interface connecting pin of handover module, and detects each network
Whether interface connection end is connected with Network Interface Module and currently corresponding with the Network Interface Module that controller communicates to connect
Network interface connecting pin encodes.
As can be seen from the above technical solutions, the present invention has the following advantages：
System is provided with controller and is connected by the data connection end of MAC module and handover module, each network interface mould
Block is connect with the network interface connecting pin of handover module respectively.Main and standby relation, primary network interface module is arranged in Network Interface Module
It is communicated to connect with controller, if occurring network failure between primary network interface module and controller, controller is to handover module
Control terminal send switching control instruction, so that handover module is switched the primary network interface module that is currently communicated to connect with controller,
Controller is communicated to connect with standby Network Interface Module, in this way can be under the premise of not increasing network interface card, by improving network interface card itself
Structure realize network fail-over feature.And the scene of various faults switching is provided in system, such as detect network
Status lamp failure network state lamp executes switching when bright；Switching is executed when data frame receipt is imperfect；Cable port loosens
Shi Zhihang switchings etc..
Description of the drawings
In order to illustrate more clearly of technical scheme of the present invention, attached drawing needed in description will be made below simple
Ground introduction, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill
For personnel, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the overall schematic of net card failure switching system；
Fig. 2 is the embodiment schematic diagram of net card failure switching system；
Fig. 3 is another embodiment schematic diagram of net card failure switching system.
Specific implementation mode
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, it will use below specific
Embodiment and attached drawing, the technical solution protected to the present invention are clearly and completely described, it is clear that implementation disclosed below
Example is only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in this patent, the common skill in this field
All other embodiment that art personnel are obtained without making creative work belongs to the model of this patent protection
It encloses.
The present invention provides a kind of net card failure switching system, as shown in Figure 1, including：Controller 1, MAC module 3 switch mould
Block 4 and at least two Network Interface Modules 5；
The net that quantity of the handover module 4 equipped with data connection end, control terminal and quantity and Network Interface Module 5 matches
Network interface connection end；Controller 1 is connect by MAC module 3 with the data connection end of handover module 4, each Network Interface Module 5
It is connect respectively with the network interface connecting pin of handover module 4；Controller 1 is communicated to connect with one of Network Interface Module 5；Control
Device 1 processed is also connect with control terminal；When the Network Interface Module 5 that is communicated to connect with controller 1 breaks down, controller 1 is to cutting
The control terminal for changing the mold block 4 sends switching control instruction, so that handover module 4 is switched the network currently communicated to connect with controller 1 and connects
Mouth mold block 5.
CPU or microcontroller or microcontroller may be used in controller 1.Network Interface Module 5 uses USB interface, or
RJ45 network interfaces or RS232 serial ports or console mouthfuls.Certainly it is communicated to connect in controller 1 and one of Network Interface Module 5
In, a main connection Network Interface Module 5 can be pre-set, several backup network interface modules 5 are set.
The technical solution being related in order to further illustrate the present invention, below with specific embodiment to the technical side of the present invention
Case is extended explanation.
Embodiment one, in net card failure switching system provided in this embodiment, as shown in Fig. 2, handover module 4 includes：The
The PHY modules 7 that one switching switch 6 and quantity and the quantity of Network Interface Module 5 match；Data are arranged in first switching switch 6
The network interface connecting pin that the quantity of connecting pin, control terminal and quantity and PHY modules 7 matches；Controller 1 passes through MAC moulds
Block 3 is connect with the data connection end of the first switching switch 6, the network interface that each PHY modules 7 switch switch 6 with first respectively
Connecting pin connects；Each PHY modules 7 are corresponded to be communicated to connect with a Network Interface Module 5；Controller 1 passes sequentially through MAC module
3, the first switching switch 6 and one of PHY modules 7 are communicated to connect with Network Interface Module 5；Controller 1 by with control
End connection, control the first switching switch 6 execute switching action.
In the present embodiment, handover module 4 is provided with multiple PHY modules, in switching, can control the by controller 1
One switching switch 6 realizes the switching of communication port.In each communication line, Network Interface Module 5 is connect with PHY modules 7, real
Existing network communication failure switching, reinforce at present can only between port and between card failover deficiency, enhance RASRAS, Remote
While Access Service remote access services show, lifting controller 1 and MAC module utilization rate.
Embodiment two, in net card failure switching system provided in this embodiment, as shown in figure 3, handover module 4 includes：The
Two switching switches 8 and PHY modules 7；Data connection end, control terminal and quantity and network interface mould is arranged in second switching switch 8
The network interface connecting pin that the quantity of block 5 matches；Controller 1 passes sequentially through MAC module 3 and PHY modules 7 and is opened with the second switching
8 data connection end connection is closed, each network interface connecting pin of the second switching switch 8 corresponds to and a Network Interface Module
5 connection controllers 1 pass sequentially through MAC module 3, and PHY modules 7 and second switch switch 8 and communicated with a Network Interface Module 5
Connection；For controller 1 by being connect with control terminal, control the second switching switch 8 executes switching action.
The present embodiment compares embodiment one the difference is that being provided with a PHY module 7, and controller 1 passes sequentially through MAC
Module 3 and PHY modules 7 are connect with the data connection end of the second switching switch 8.
When the Network Interface Module 5 communicated to connect with controller 1 breaks down, controller 1 switches switch 8 to second
Control terminal sends switching control instruction, and the second switching switch 8 is made to switch the Network Interface Module currently communicated to connect with controller 1
5, timely switch failure network is played, ensures that network communication is normal.
Embodiment three, the present embodiment can be combined with embodiment one with two any technical solutions of embodiment.This reality
Applying example includes：Fault detection module；Fault detection module is connect with controller 1, and fault detection module is for detecting network interface
Connection status between module 5 and cable port, when fault detection module detects that cable port loosens Network Interface Module 5
When, network failure signal is sent out to controller 1, controller 1 sends switching control instruction to the control terminal of handover module 4, makes to cut
Mold changing block 4 switches the Network Interface Module 5 currently communicated to connect with controller 1.This is to be based on loosening under state cable port
Form the detection and switching of failure.
Namely when fault detection module detects that cable port loosens Network Interface Module 5, controller 1 by with control
End processed connection, control the first switching switch 6 execute switching action, make the first switching switch 6 switch currently with 1 communication link of controller
The Network Interface Module 5 connect plays timely switch failure network, ensures that network communication is normal.
Also a kind of mode is the controller 1 when fault detection module detects that cable port loosens Network Interface Module 5
By being connect with control terminal, control the second switching switch 8 executes switching action, make the second switching switch 8 switch currently with control
The Network Interface Module 5 that device 1 communicates to connect plays timely switch failure network, ensures that network communication is normal.
The present embodiment further includes：Controller 1 is additionally operable to when receiving the data frame with frame head and postamble, when in reception number
After the frame head of frame, when not receiving the postamble of the data frame after preset duration, controller 1 is to handover module 4
Control terminal sends switching control instruction, and handover module 4 is made to switch the Network Interface Module 5 currently communicated to connect with controller 1, weight
Newly receive the data frame.
It is transmitted it will be appreciated that the data frame with frame head and postamble may be used in data, in transmission process, such as
Fruit controller 1 occurs receiving an incomplete data frame, that is, only have received frame head during reception, and
The follow-up of frame head does not receive the information before postamble and postamble still, leads to INFORMATION OF INCOMPLETE in this way.By default
Duration after still do not receive, in this way
Control first switching switch 6 execute switching action, make the first switching switch 6 switch currently with 1 communication link of controller
The Network Interface Module 5 connect plays timely switch failure network, ensures that network communication is normal.Or, control the second switching switch
8 execute switching action, so that the second switching switch 8 is switched the Network Interface Module 5 currently communicated to connect with controller 1, play
Timely switch failure network, ensures that network communication is normal, ensures the stability for receiving data in this way.
The present embodiment further includes：Network state lamp detection module；Network state lamp detection module is connect with controller 1, net
Network status lamp detection module is used to detect the state of network state lamp, when network state lamp detection module detects fault network shape
When state lamp is bright, network failure signal is sent out to controller 1, controller 1 sends switching control to the control terminal of handover module 4 and refers to
It enables, handover module 4 is made to switch the Network Interface Module 5 currently communicated to connect with controller 1.This mode is to network state lamp
Detection, based on network state lamp it is abnormal or break down when, control first switching switch 6 execution switching action, make first
Switch the Network Interface Module 5 that the switching of switch 6 is currently communicated to connect with controller 1, plays timely switch failure network, ensure
Network communication is normal.Or, control the second switching switch 8 executes switching action, make the switching of the second switching switch 8 currently and controller
The Network Interface Module 5 of 1 communication connection, plays timely switch failure network, ensures that network communication is normal, ensures to receive in this way
The stability of data.
The present embodiment controller 1 is additionally operable to every heartbeat package informatin sent out by a preset duration, reception client, works as warp
When crossing a preset duration and not receiving the heartbeat package informatin that client is sent out, controller 1 is cut to the transmission of the control terminal of handover module 4
Control instruction is changed, so that handover module 4 is switched the Network Interface Module 5 currently communicated to connect with controller 1, receives the visitor again
The heartbeat package informatin that family end is sent out.This mode is that the heartbeat package informatin of client is detected, if cannot normally receive
The heartbeat package informatin of client, the control of controller 1 first switching switch 6 execute switching action, the switching of the first switching switch 6 are made to work as
The preceding Network Interface Module 5 communicated to connect with controller 1, plays timely switch failure network, ensures that network communication is normal.
Or, the control of controller 1 second switching switch 8 executes switching action, the switching of the second switching switch 8 is made currently to be communicated with controller 1
The Network Interface Module 5 of connection, plays timely switching, and guarantee communicates normally with client network.
In the present embodiment, for the ease of switching, controller 1 is additionally operable to carry out the network interface connecting pin of handover module 4
Coding, and detect whether each network interface connecting pin is connected with Network Interface Module 5 and is currently communicated to connect with controller 1
5 corresponding network interface connecting pin of Network Interface Module coding.Primary network interface module can be set in this way and standby network connects
Mouth mold block is encoded based on primary network interface module and standby Network Interface Module.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, identical similar portion refers to mutually between each embodiment.
Term " first ", " second ", " third " " in description and claims of this specification and above-mentioned attached drawing
Four " etc. if there is being for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that
The data used in this way can be interchanged in the appropriate case, so that the embodiment of the present invention described herein can be in addition at this
In illustrate or description those of other than sequence implement.In addition, term " comprising " and " having " and their any deformation, meaning
Figure, which is to cover, non-exclusive includes.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (9)
1. a kind of net card failure switching system, which is characterized in that including：Controller (1), MAC module (3), handover module (4) with
And at least two Network Interface Module (5)；
The net that quantity of the handover module (4) equipped with data connection end, control terminal and quantity and Network Interface Module (5) matches
Network interface connection end；
Controller (1) is connect by MAC module (3) with the data connection end of handover module (4), each Network Interface Module (5)
It is connect respectively with the network interface connecting pin of handover module (4)；Controller (1) is communicated with one of Network Interface Module (5)
Connection；Controller (1) is also connect with control terminal；When the Network Interface Module (5) communicated to connect with controller (1) breaks down
When, controller (1) to the control terminal of handover module (4) send switching control instruction, make handover module (4) switching currently with control
The Network Interface Module (5) of device (1) communication connection.
2. net card failure switching system according to claim 1, which is characterized in that
Handover module (4) includes：The PHY moulds that first switching switch (6) and quantity and the quantity of Network Interface Module (5) match
Block (7)；
First switching switch (6) setting data connection end, the net that control terminal and the quantity of quantity and PHY modules (7) match
Network interface connection end；
Controller (1) is connect by MAC module (3) with the data connection end of the first switching switch (6), each PHY modules (7) point
It is not connect with the network interface connecting pin of the first switching switch (6)；
Each PHY modules (7) are corresponding to be communicated to connect with a Network Interface Module (5)；
Controller (1) passes sequentially through MAC module (3), and the first switching switch (6) and one of PHY modules (7) connect with network
Mouth mold block (5) communicates to connect；
For controller (1) by being connect with control terminal, the first switching switch (6) of control executes switching action.
3. net card failure switching system according to claim 1, which is characterized in that
Handover module (4) includes：Second switching switch (8) and PHY modules (7)；
Second switching switch (8) setting data connection end, control terminal and quantity and the quantity of Network Interface Module (5) match
Network interface connecting pin；
Controller (1) passes sequentially through MAC module (3) and PHY modules (7) and is connect with the data connection end of the second switching switch (8),
Each network interface connecting pin of second switching switch (8) is corresponded to be connect with a Network Interface Module (5)
Controller (1) passes sequentially through MAC module (3), PHY modules (7) and the second switching switch (8) and a network interface mould
Block (5) communicates to connect；
For controller (1) by being connect with control terminal, the second switching switch (8) of control executes switching action.
4. net card failure switching system according to claim 2 or 3, which is characterized in that
Network Interface Module (5) is using USB interface or RJ45 network interfaces or RS232 serial ports or console mouthfuls.
5. net card failure switching system according to claim 2 or 3, which is characterized in that
Further include：Fault detection module；
Fault detection module is connect with controller (1), and fault detection module is for detecting Network Interface Module (5) and cable port
Between connection status, when fault detection module detects that cable port loosens Network Interface Module (5), to controller (1)
Network failure signal is sent out, controller (1) sends switching control instruction to the control terminal of handover module (4), makes handover module (4)
The Network Interface Module (5) that switching is currently communicated to connect with controller (1).
6. net card failure switching system according to claim 5, which is characterized in that
Controller (1) is additionally operable to when receiving the data frame with frame head and postamble, after receiving the frame head of data frame, is being passed through
When crossing after preset duration the postamble for not receiving the data frame, controller (1) is sent to the control terminal of handover module (4) to be switched
Control instruction makes handover module (4) switch the Network Interface Module (5) currently communicated to connect with controller (1), receives institute again
State data frame.
7. net card failure switching system according to claim 5, which is characterized in that
Further include：Network state lamp detection module；
Network state lamp detection module is connect with controller (1), and network state lamp detection module is for detecting network state lamp
State sends out network failure letter when network state lamp detection module detects that fault network status lamp is bright to controller (1)
Number, controller (1) to the control terminal of handover module (4) send switching control instruction, make handover module (4) switching currently with control
The Network Interface Module (5) of device (1) communication connection.
8. net card failure switching system according to claim 5, which is characterized in that
Controller (1) is additionally operable to every heartbeat package informatin sent out by a preset duration, reception client, when default by one
When length does not receive the heartbeat package informatin that client is sent out, controller (1) sends switching control to the control terminal of handover module (4)
Instruction makes handover module (4) switch the Network Interface Module (5) currently communicated to connect with controller (1), receives the visitor again
The heartbeat package informatin that family end is sent out.
9. net card failure switching system according to claim 1, which is characterized in that
Controller (1) is additionally operable to encode the network interface connecting pin of handover module (4), and detects each network interface and connect
Connect whether end is connected with Network Interface Module (5) and currently corresponding with Network Interface Module (5) that controller (1) communicates to connect
Network interface connecting pin coding.
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| CN104618141A (en) * | 2014-12-27 | 2015-05-13 | 中国船舶重工集团公司第七一一研究所 | Dual-network switching device based on FPGA (field programmable gate array) and dual-network switching method thereof |
| CN206684543U (en) * | 2017-05-03 | 2017-11-28 | 济南浪潮高新科技投资发展有限公司 | A kind of automatic identification based on FPGA and the circuit and system for switching network interface |
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| CN110138623A (en) * | 2019-06-04 | 2019-08-16 | 商丘师范学院 | A kind of intelligence early warning weak electricity system and its method |
| CN112235630A (en) * | 2020-09-28 | 2021-01-15 | 卡莱特（深圳）云科技有限公司 | Data backup transmission method, LED mesh loop backup system and electronic equipment |
| CN113992578A (en) * | 2021-09-09 | 2022-01-28 | 新华三大数据技术有限公司 | Method, device and equipment for switching servers by cloud desktop terminal and storage medium |
| CN113992578B (en) * | 2021-09-09 | 2023-11-03 | 新华三大数据技术有限公司 | Method, device, equipment and storage medium for switching servers of cloud desktop terminal |
| CN114038181A (en) * | 2021-10-25 | 2022-02-11 | 苏州浪潮智能科技有限公司 | Remote debugging device and server |
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