Bypass protection device, bypass protection method and network equipment

Abstract

The invention relates to the technical field of communication, and relates to a bypass protection device, a bypass protection method and network equipment. The device comprises at least one group of switching control circuits, at least one group of transformers and at least one group of Ethernet interfaces, and the first input end of each group of switching control circuits is electrically connected with the Ethernet port of each switch chip. The output end of each group of switching control circuit is connected with the Ethernet interface of each group through the transformer of each group, the second input end of the first switching control circuit of each group is connected with the second input end of the second switching control circuit of each group, and when the switch chip cannot work normally, the output end of the switching control circuit of each group is connected with the Ethernet interface of each group. According to the invention, the switching control circuit is arranged in front of the transformer, and the transformer is used for protecting the switching control circuit, so that the high-speed transmission and the stability of network data transmission are guaranteed, and the performance of the whole equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a bypass protection device, a bypass protection method, and a network device. Background Art

[0002] Ethernet bypass protection is a technology commonly used in network equipment to maintain the continuity of network connection in the event of network failure or equipment failure. This technology is particularly suitable for mission-critical network environments such as financial trading systems, medical equipment, industrial automation, etc., ensuring that data transmission will not be interrupted even when network equipment fails.

[0003] Existing bypass protection devices are mainly implemented using relays. When a network device fails, the two network ports are directly physically connected through the relay. As a component that directly connects the port and the subsequent circuit, the relay's internal mechanical structure and contacts are subject to wear and corrosion due to long-term work in a relatively harsh environment, which seriously affects the reliability and speed of the relay, thereby reducing the performance of the overall equipment, and may even cause signal attenuation, increased delays and data packet loss during data transmission, causing unpredictable effects. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a bypass protection device, a bypass protection method, and a network device, which can effectively solve the problem in the existing solution that the internal mechanical structure and contacts of the relay are worn and corroded due to long-term operation in a relatively harsh environment, which seriously affects the reliability and speed of the relay, thereby reducing the performance of the overall equipment, and even causing signal attenuation, increased delay and data packet loss during data transmission.

[0005] In a first aspect, an embodiment of the present application provides a bypass protection device, comprising: at least one group of switching control circuits, at least one group of transformers, and at least one group of Ethernet interfaces.

[0006] The first input end of the first switching control circuit of each group is electrically connected to the first Ethernet port of each switch chip, the second input end of the first switching control circuit of each group is connected to the second input end of the second switching control circuit of each group, the output end of the first switching control circuit of each group is connected to the input end of the first transformer of each group, and the output end of the first transformer of each group is connected to the first Ethernet interface of each group;

[0007] The first input end of the second switching control circuit of each group is electrically connected to the second Ethernet port of each switch chip, the output end of the second switching control circuit of each group is connected to the input end of the second transformer of each group, and the output end of the second transformer of each group is connected to the second Ethernet interface of each group;

[0008] The switching control circuit of each group is used to control the switch chip to perform network transmission through each transformer and each Ethernet interface when the switch chip is working normally, and to control the network transmission between the first Ethernet interface and the second Ethernet interface in each group when the switch chip cannot work normally.

[0009] In some embodiments, the structures of the switching control circuits are the same, and they all include: a relay and a protection module, one end of the coil of the relay is used to connect to the power supply, the other end of the coil of the relay is grounded, the first common end of the relay is electrically connected to each of the transformers, the second common end of the relay is electrically connected to each of the transformers, the first normally open contact of the relay is electrically connected to the Ethernet port of each of the switch chips, the second normally open contact of the relay is electrically connected to the Ethernet port of each of the switch chips, the first normally closed contact of the relay is connected to the first normally closed contact of the relay in the same group, the second normally closed contact of the relay is connected to the second normally closed contact of the relay in the same group, one end of the protection module is used to connect to the power supply, and the other end of the protection module is grounded.

[0010] In some embodiments, each of the switching control circuits further includes: a filter module, one end of the filter module is used to connect to the power supply, and the other end of the filter module is grounded.

[0011] In some embodiments, the filtering module includes: a filtering capacitor, one end of the filtering capacitor is used to connect to the power supply, and the other end of the filtering capacitor is grounded.

[0012] In some embodiments, the bypass protection device further includes: an anti-interference module, one end of the anti-interference module is used to connect to the power supply, and the other end of the anti-interference module is connected to one end of the coil of the relay.

[0013] In some embodiments, the anti-interference module includes a magnetic bead, one end of the magnetic bead is used to connect to the power supply, and the other end of the magnetic bead is connected to one end of the coil of the relay.

[0014] In some embodiments, the bypass protection device also includes: at least one group of filtering circuits, one end of the first filtering circuit of each group is connected to the first Ethernet port of each switch chip, the other end of the first filtering circuit of each group is connected to the first input end of the first switching control circuit of each group, one end of the second filtering circuit of each group is connected to the second Ethernet port of each switch chip, and the other end of the second filtering circuit of each group is connected to the first input end of the second switching control circuit of each group.

[0015] In some embodiments, the structures of the filtering circuits are the same, and they all include: a first resistor, a second resistor, a first capacitor and a second capacitor, one end of the first resistor is connected to the positive terminal of each Ethernet port, the other end of the first resistor is connected to the positive terminal of the first input terminal of each switching control circuit, one end of the second resistor is connected to the negative terminal of each Ethernet port, the other end of the second resistor is connected to the negative terminal of the first input terminal of each switching control circuit, one end of the first capacitor is connected to the positive terminal of each Ethernet port, the other end of the first capacitor is grounded, one end of the second capacitor is connected to the negative terminal of each Ethernet port, and the other end of the second capacitor is grounded.

[0016] In a second aspect, an embodiment of the present application provides a bypass protection method, which is applied to at least one bypass protection device described in the first aspect, including:

[0017] When the switch chip works normally, the first input end of the first switching control circuit of each group is controlled to be connected to the output end of the first switching control circuit of each group, and the first input end of the second switching control circuit of each group is controlled to be connected to the output end of the second switching control circuit of each group, so that the switch chip performs network transmission through each transformer and each Ethernet interface respectively;

[0018] When the switch chip fails to work normally, the second input end of the first switching control circuit of each group is controlled to be connected to the output end of the first switching control circuit of each group, and the second input end of the second switching control circuit of each group is controlled to be connected to the output end of the second switching control circuit of each group, so as to enable network transmission between the first Ethernet interface and the second Ethernet interface of each group.

[0019] In a third aspect, an embodiment of the present application provides a network device, in which at least one bypass protection device described in the first aspect is provided.

[0020] The embodiments of the present application have the following beneficial effects:

[0021] The bypass protection device of the present application includes at least one group of switching control circuits, at least one group of transformers and at least one group of Ethernet interfaces, wherein the first input end of each group of first switching control circuits is electrically connected to the first Ethernet port of each switch chip, the second input end of each group of first switching control circuits is electrically connected to the second input end of each group of second switching control circuits, the output end of each group of first switching control circuits is electrically connected to the first Ethernet interface of each group through the first transformer of each group, the first input end of each group of second switching control circuits is electrically connected to the second Ethernet port of the switch chip, the output end of each group of second switching control circuits is electrically connected to the second Ethernet interface of each group through the second transformer of each group, and when the switch chip fails to work normally, the switching control circuit of each group controls the network transmission between the first Ethernet interface and the second Ethernet interface of each group to ensure that the networks of each group are still connected, and the present application arranges the switching control circuit before the transformer, and uses the transformer to protect the switching control circuit, thereby preventing the switching control circuit from working in a relatively harsh environment for a long time, and the degree of wear and aging of the internal electrical components and mechanical structures will be greatly reduced, ensuring the high-speed transmission and stability of network data transmission, and greatly improving the performance of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A first structural schematic diagram of a bypass protection device according to an embodiment of the present application is shown;

[0024] Figure 2 A circuit diagram of a switching control circuit according to an embodiment of the present application is shown;

[0025] Figure 3 A second structural schematic diagram of the bypass protection device according to an embodiment of the present application is shown;

[0026] Figure 4 A circuit diagram of a filter circuit according to an embodiment of the present application is shown;

[0027] Figure 5 A schematic flow chart of the bypass protection method according to an embodiment of the present application is shown.

[0028] Description of main component symbols:

[0029] 10: a set of switching control circuits; 20: a set of transformers; 30: a set of Ethernet interfaces;

[0030] 40: switch chip; 50: anti-interference module; 60: a group of filtering circuits; 101: a first switching control circuit; 102: a second switching control circuit; 111: a protection module; 112: a filtering module; 201: a first transformer; 202: a second transformer; 301: a first Ethernet interface; 302: a second Ethernet interface; 601: a first filtering circuit; 602: a second filtering circuit. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0032] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0033] Hereinafter, the terms "including", "having" and their cognates that can be used in various embodiments of the present application are intended only to indicate specific features, numbers, steps, operations, elements, components or a combination of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or a combination of the foregoing items or increasing the possibility of one or more features, numbers, steps, operations, elements, components or a combination of the foregoing items. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0034] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as those generally understood by those skilled in the art to which the various embodiments of the present application belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meanings as the contextual meanings in the relevant technical field and will not be interpreted as having idealized meanings or overly formal meanings unless clearly defined in the various embodiments of the present application.

[0035] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0036] Considering that the relays in the existing schemes are subjected to wear and corrosion of the internal mechanical mechanisms and contacts due to long-term operation in a relatively harsh environment, which seriously affects the reliability and speed of the relays, thereby reducing the performance of the overall equipment, and even causing signal attenuation, increased delays, and data packet loss during data transmission, the present application provides a bypass protection device, a bypass protection method, and a network device. The present application sets the switching control circuit before the transformer, and uses the transformer to protect the switching control circuit, thereby preventing the switching control circuit from working in a relatively harsh environment for a long time. The degree of wear and aging of the internal electrical components and mechanical structures will be greatly reduced, ensuring the high-speed transmission and stability of network data transmission, and greatly improving the performance of the overall equipment.

[0037] The bypass protection device is described below in conjunction with some specific embodiments.

[0038] Figure 1 A schematic diagram of the structure of the bypass protection device of the embodiment of the present application is shown. Exemplarily, the bypass protection device includes: at least one group of switching control circuits 10, at least one group of transformers 20 and at least one group of Ethernet interfaces 30. It is understandable that two are divided into one group, one group of switching control circuits 10 includes a first switching control circuit 101 and a second switching control circuit 102, one group of transformers 20 includes a first transformer 201 and a second transformer 202, and one group of Ethernet interfaces 30 includes a first Ethernet interface 301 and a second Ethernet interface 302.

[0039] As another embodiment, a group of transformers 20 may also be implemented by a single transformer having at least two groups of primary and secondary windings, the single transformer having different primary winding input ends and secondary winding output ends, different primary winding input ends being connected to different switching control circuits, and different secondary winding output ends being connected to different Ethernet interfaces, and a single transformer is used to achieve isolation between the first Ethernet port and the first Ethernet interface 301 in one group, and isolation between the second Ethernet port and the second Ethernet interface 302. Furthermore, only one transformer may be provided in the bypass protection device, and a single transformer may be used to achieve isolation between the first Ethernet port and the first Ethernet interface 301 in multiple groups, and isolation between the second Ethernet port and the second Ethernet interface 302.

[0040] The number of switching control circuits and Ethernet interfaces can be set according to actual application conditions. It is understandable that the number of switching control circuits is the same as the number of Ethernet interfaces, and each switching control circuit corresponds to one Ethernet interface 30 .

[0041] The first input end of each group's first switching control circuit 101 is electrically connected to the first Ethernet port of each switch chip 40, the second input end of each group's first switching control circuit 101 is connected to the second input end of each group's second switching control circuit 102, the output end of each group's first switching control circuit 101 is connected to the input end of each group's first transformer 201, and the output end of each group's first transformer 201 is connected to the first Ethernet interface 301 of each group.

[0042] The first input end of each group of the second switching control circuit 102 is electrically connected to the second Ethernet port of each switch chip 40, and the output end of each group of the second switching control circuit 102 is connected to the input end of the second transformer 202 of each group, and the output end of each group of the second transformer 202 is connected to the second Ethernet interface 302 of each group. As other implementation methods, multiple groups of switching control circuits can be connected to different Ethernet ports of a single switch chip 40, and multiple groups of switching control circuits can also be connected to different switch chips 40 respectively. The first switching control circuit 101 and the second switching control circuit 102 in a single group of switching control circuits can also be connected to the Ethernet ports of different switch chips 40. The connection between the switching control circuit and the switch chip 40 can be set according to actual application conditions.

[0043] The switching control circuit of each group is used to control the switch chip 40 to perform network transmission through each transformer and each Ethernet interface when the switch chip 40 works normally, and to control the network transmission between the first Ethernet interface 301 and the second Ethernet interface 302 in each group when the switch chip 40 fails to work normally.

[0044] Exemplarily, a relay is provided in each switching control circuit, and the power supply signal or the control circuit is used to control the relay to control the transmission between networks. Specifically, when the switch chip 40 is working normally, the first input end and the output end of the first switching control circuit 101 are connected, and the switch chip 40 performs network transmission with the first Ethernet interface 301 through the first switching control circuit 101 and the first transformer 201 in turn; the first input end and the output end of the second switching control circuit 102 are connected, and the switch chip 40 performs network transmission with the second Ethernet interface 302 through the second switching control circuit 102 and the second transformer 202 in turn.

[0045] When the switch chip 40 cannot work normally, the second input end and the output end of the first switching control circuit 101 are connected, the second input end and the output end of the second switching control circuit 102 are connected, and network transmission is performed between the first Ethernet interface 301 and the second Ethernet interface 302.

[0046] The bypass protection device of this embodiment sets the switching control circuit at the front end of the transformer. The transformer can be isolated to reduce the interference of external absorption to the internal circuit of the equipment, which helps to protect the stability and safety of the internal circuit of the equipment; at the same time, it can reduce interference and loss to the relay, increase the service life of the relay, ensure high-speed transmission and stability of network data transmission, and improve the performance of the overall equipment; it can also convert the signal so that the signal can meet the requirements between different devices and interfaces, further ensuring the integrity and accuracy of the signal during the transmission process.

[0047] As an optional solution, Figure 2 FIG. 4 is a circuit diagram of a switching control circuit according to an embodiment of the present application.

[0048] In one embodiment, if Figure 2 As shown, based on the above embodiment, the structures of the switching control circuits are the same, and all include: a relay K1 and a protection module 111, one end of the coil of the relay K1 (corresponding to Figure 2 The first pin of relay K1 in the figure is used to connect the power supply, and the other end of the coil of relay K1 (corresponding to Figure 2 The second pin of relay K1 in the middle is grounded, and the first common terminal of relay K1 (corresponding to Figure 2 The 5th pin of the relay K1 in the middle is electrically connected to each transformer, and the second common terminal of the relay K1 (corresponding to Figure 2 The 6th pin of relay K1 in the middle is electrically connected to each transformer, and the first normally open contact of relay K1 (corresponding to Figure 2 The third pin of the relay K1 in the middle is electrically connected to the Ethernet port of each switch chip 40, and the second normally open contact of the relay K1 (corresponding to Figure 2 The 4th pin of the relay K1 in the middle) is electrically connected to the Ethernet port of each switch chip 40, and the first normally closed contact of the relay K1 (corresponding to Figure 2 The 7th pin of relay K1 in the middle) is connected to the first normally closed contact of relay K1 in the same group, and the second normally closed contact of relay K1 (corresponding to Figure 2 The 8th pin of the relay K1 in the middle is connected to the second normally closed contact of the relay K1 in the same group. One end of the protection module 111 is used to connect the power supply, and the other end of the protection module 111 is grounded. It can be understood that Figure 2 Taking the first switching control circuit 101 as an example, the normally open contact is connected to the first Ethernet port of the switch chip 40, the common end is connected to the first transformer 201, the normally closed contact is connected to the second switching control circuit 102, the power supply is represented by VCC, and the ground is represented by GND.

[0049] Specifically, the relay K1 is controlled by the signal of the power supply. When the power supply outputs the power supply signal, the two common ends of the relay K1 and the two normally open contacts are closed, and the signal of the Ethernet port flows to the Ethernet interface through the transformer. When the power supply is cut off, the two common ends of the relay K1 and the two normally closed contacts are closed, and network transmission is carried out between the Ethernet interfaces in the same group. It can be understood that the Ethernet port includes the positive terminal of the Ethernet port and the negative terminal of the Ethernet port, and the positive terminal and the negative terminal are electrically connected to the two normally open contacts of the relay K1 respectively.

[0050] The protection module 111 can be any protection module, for example, Figure 2 As shown, the protection module 111 is a diode.

[0051] The bypass protection device of this embodiment sets a relay K1 in the switching control circuit, and uses the relay K1 to implement bypass protection, ensuring that the network service is still available when the network equipment fails, thereby improving the high availability and reliability of the system. A diode is connected in parallel at both ends of the coil of the relay K1 to prevent the generation of a high reverse voltage and protect the circuit.

[0052] In one embodiment, if Figure 2 As shown, on the basis of the above embodiments, each switching control circuit further includes: a filter module 112, one end of the filter module 112 is used to connect to the power supply, and the other end of the filter module 112 is grounded.

[0053] It is understandable that the filter module 112 can be any filter module, for example, Figure 2 As shown, the filter module 112 is a filter capacitor.

[0054] The bypass protection device of this embodiment connects filter capacitors in parallel at both ends of the relay K1 coil, which can further suppress transient voltage and protect the circuit, while reducing electromagnetic interference and improving the electromagnetic compatibility of the system.

[0055] As an optional solution, Figure 3 Shown is another structural schematic diagram of the bypass protection device of an embodiment of the present application.

[0056] In one embodiment, if Figure 3 As shown, based on the above embodiment, the bypass protection device further includes: an anti-interference module 50, one end of the anti-interference module 50 is used to connect to the power supply, and the other end of the anti-interference module 50 is connected to one end of the coil of the relay K1.

[0057] It is understandable that the anti-interference module 50 can be any type of anti-interference module. Exemplarily, the anti-interference module 50 is a magnetic bead.

[0058] The bypass protection device of this embodiment arranges a magnetic bead between the power supply and the coil of the relay K1, which can improve the quality of the power supply signal and further suppress electromagnetic interference.

[0059] In one embodiment, if Figure 3 As shown, on the basis of the above embodiment, the bypass protection device also includes: at least one group of filter circuits 60, one end of the first filter circuit 601 of each group is connected to the first Ethernet port of each switch chip 40, the other end of the first filter circuit 601 of each group is connected to the first input end of the first switching control circuit 101 of each group, one end of the second filter circuit 602 of each group is connected to the second Ethernet port of each switch chip 40, and the other end of the second filter circuit 602 of each group is connected to the first input end of the second switching control circuit 102 of each group.

[0060] It is understandable that the filter circuit may be any type of filter circuit. The filter circuit may be an RC filter circuit, an RL filter circuit, an LC filter circuit, and the like.

[0061] The bypass protection device of this embodiment sets a filter circuit between the switch chip 40 and the switching control circuit, which can protect the switch chip 40, extend the service life of the switch chip 40, improve the reliability of the system, and at the same time reduce reflections and ringing on the signal line to improve signal integrity.

[0062] In one embodiment, Figure 4 The figure shows a circuit schematic diagram of the filter circuit of an embodiment of the present application. On the basis of the above-mentioned embodiment, the structures of the filter circuits are the same, and they all include: a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2, one end of the first resistor R1 is connected to the positive end of each Ethernet port, the other end of the first resistor R1 is connected to the positive pole of the first input end of each switching control circuit, one end of the second resistor R2 is connected to the negative end of each Ethernet port, the other end of the second resistor R2 is connected to the negative pole of the first input end of each switching control circuit, one end of the first capacitor C1 is connected to the positive end of each Ethernet port, the other end of the first capacitor C1 is grounded, one end of the second capacitor C2 is connected to the negative end of each Ethernet port, and the other end of the second capacitor C2 is grounded. Figure 4 Take the first filtering circuit 601 as an example.

[0063] The bypass protection device of this embodiment has a filter circuit including a resistor and a capacitor, has a simple structure, and is low in cost. It can protect the switch chip 40 while reducing the cost of the system.

[0064] The present application also provides a bypass protection method. Figure 5A schematic flow chart of a bypass protection method according to an embodiment of the present application is shown. The bypass protection method is applied to the bypass protection device mentioned in any of the above embodiments, including:

[0065] Step S101: When the switch chip 40 works normally, the first input end of the first switching control circuit 101 of each group is controlled to be connected to the output end of the first switching control circuit 101 of each group, and the first input end of the second switching control circuit 102 of each group is controlled to be connected to the output end of the second switching control circuit 102 of each group, so that the switch chip 40 performs network transmission through each transformer and each Ethernet interface respectively.

[0066] When the switch chip 40 works normally, the switch chip 40 performs network transmission with the first Ethernet interface 301 through the first switching control circuit 101 and the first transformer 201 in turn; the switch chip 40 performs network transmission with the second Ethernet interface 302 through the second switching control circuit 102 and the second transformer 202 in turn.

[0067] Step S102: When the switch chip 40 cannot work normally, the second input end of the first switching control circuit 101 of each group is controlled to be connected to the output end of the first switching control circuit 101 of each group, and the second input end of the second switching control circuit 102 of each group is controlled to be connected to the output end of the second switching control circuit 102 of each group, so as to enable network transmission between the first Ethernet interface 301 and the second Ethernet interface of each group.

[0068] When the switch chip 40 fails to work normally, the first Ethernet interface 301 is connected to the second Ethernet interface 302 through the first switching control circuit 101 and the second switching control circuit 102 in sequence.

[0069] In this embodiment, bypass protection is implemented by using a switching control circuit to ensure that network services are still available when network equipment fails, thereby improving the high availability and reliability of the system. The switching control circuit is set at the front end of the transformer, and the transformer can be isolated to reduce the interference of external absorption to the internal circuit of the device, which helps to protect the stability and safety of the internal circuit of the device; at the same time, it can reduce the interference and loss to the relay K1, increase the service life of the relay K1, ensure the high-speed transmission and stability of network data transmission, and improve the performance of the overall device.

[0070] An embodiment of the present application also provides a network device, in which the bypass protection device mentioned in any of the above embodiments is provided. It is understandable that the network device can be any type of network device, the network device can be a network security device such as a firewall, the network device can also be a network switch, the network device can also be a router, the network device can also be a network monitoring device, the network device can also be a medical network device, etc.

[0071] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and structure diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in an alternative implementation, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the structure diagram and / or the flow diagram, and the combination of boxes in the structure diagram and / or the flow diagram, can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0072] In addition, the functional modules or units in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0073] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application.

[0074] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A bypass protection device, characterized in that: include: at least one set of switching control circuits, at least one set of transformers and at least one set of Ethernet interfaces, The first input end of the first switching control circuit of each group is electrically connected to the first Ethernet port of each switch chip, the second input end of the first switching control circuit of each group is connected to the second input end of the second switching control circuit of each group, the output end of the first switching control circuit of each group is connected to the input end of the first transformer of each group, and the output end of the first transformer of each group is connected to the first Ethernet interface of each group; The first input end of the second switching control circuit of each group is electrically connected to the second Ethernet port of each switch chip, the output end of the second switching control circuit of each group is connected to the input end of the second transformer of each group, and the output end of the second transformer of each group is connected to the second Ethernet interface of each group; The switching control circuit of each group is used to control the switch chip to perform network transmission through each transformer and each Ethernet interface when the switch chip is working normally, and to control the network transmission between the first Ethernet interface and the second Ethernet interface in each group when the switch chip cannot work normally.

2. The bypass protection device according to claim 1, characterized in that: The structures of the switching control circuits are the same, and they all include: a relay and a protection module, One end of the coil of the relay is used to connect to the power supply, the other end of the coil of the relay is grounded, the first common end of the relay is electrically connected to each of the transformers, the second common end of the relay is electrically connected to each of the transformers, the first normally open contact of the relay is electrically connected to the Ethernet port of each of the switch chips, the second normally open contact of the relay is electrically connected to the Ethernet port of each of the switch chips, the first normally closed contact of the relay is connected to the first normally closed contact of the relay in the same group, the second normally closed contact of the relay is connected to the second normally closed contact of the relay in the same group, one end of the protection module is used to connect to the power supply, and the other end of the protection module is grounded.

3. The bypass protection device according to claim 2, characterized in that: Each of the switching control circuits further includes: a filter module, one end of the filter module is used to connect to the power supply, and the other end of the filter module is grounded.

4. The bypass protection device according to claim 3, characterized in that: The filter module comprises: a filter capacitor, one end of which is used to connect to the power supply, and the other end of which is grounded.

5. The bypass protection device according to claim 2, characterized in that: The bypass protection device further includes: an anti-interference module, one end of the anti-interference module is used to connect to the power supply, and the other end of the anti-interference module is connected to one end of the coil of the relay.

6. The bypass protection device according to claim 5, characterized in that: The anti-interference module includes a magnetic bead, one end of which is used to connect to the power supply, and the other end of which is connected to one end of the coil of the relay.

7. The bypass protection device according to claim 1, characterized in that: The bypass protection device also includes: at least one group of filter circuits, one end of the first filter circuit of each group is connected to the first Ethernet port of each switch chip, the other end of the first filter circuit of each group is connected to the first input end of the first switching control circuit of each group, one end of the second filter circuit of each group is connected to the second Ethernet port of each switch chip, and the other end of the second filter circuit of each group is connected to the first input end of the second switching control circuit of each group.

8. The bypass protection device according to claim 7, characterized in that: The structures of the filter circuits are the same, and they all include: a first resistor, a second resistor, a first capacitor, and a second capacitor. One end of the first resistor is connected to the positive terminal of each Ethernet port, and the other end of the first resistor is connected to the positive terminal of the first input terminal of each switching control circuit. One end of the second resistor is connected to the negative terminal of each Ethernet port, and the other end of the second resistor is connected to the negative terminal of the first input terminal of each switching control circuit. One end of the first capacitor is connected to the positive terminal of each Ethernet port, and the other end of the first capacitor is grounded. One end of the second capacitor is connected to the negative terminal of each Ethernet port, and the other end of the second capacitor is grounded.

9. A bypass protection method, characterized in that: The bypass protection method is applied to the bypass protection device according to any one of claims 1 to 8, comprising: When the switch chip works normally, the first input end of the first switching control circuit of each group is controlled to be connected to the output end of the first switching control circuit of each group, and the first input end of the second switching control circuit of each group is controlled to be connected to the output end of the second switching control circuit of each group, so that the switch chip performs network transmission through each transformer and each Ethernet interface respectively; When the switch chip fails to work normally, the second input end of the first switching control circuit of each group is controlled to be connected to the output end of the first switching control circuit of each group, and the second input end of the second switching control circuit of each group is controlled to be connected to the output end of the second switching control circuit of each group, so as to enable network transmission between the first Ethernet interface and the second Ethernet interface of each group.

10. A network device, characterized in that: The network device is provided with a bypass protection device as described in any one of claims 1-8.

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