System and method for online monitoring Ethernet dual-redundancy three-level transmission link

Abstract

The invention relates to a system and method for online monitoring an Ethernet dual-redundancy three-level transmission link, and the system comprises an information transmitting end first network and an information transmitting end second network which are used for achieving online monitoring; the output end of the first network of the information sending end is connected with first terminal equipment through a portable switch, and the output end of the first network of the information sending end is also connected with a first primary gateway isolation switch for primary isolation of information; the first primary gateway isolation switch is also connected with the first secondary gateway isolation switch and is used for second-stage isolation of information; and the first and second-level gateway isolation switch is respectively connected with the user side and the second terminal equipment, and is used for ensuring that the second terminal equipment and the user side normally receive information and comparing the accuracy and correctness of the received information with the first terminal equipment. According to the invention, the function and performance requirements of Ethernet information transmission reliability can be realized.

Description

Technical Field

[0001] The invention belongs to the technical field of embedded system development, and relates to a real-time troubleshooting and locating method for complex link application scenarios, in particular to a method for online monitoring of Ethernet dual-redundant three-level transmission links. Background Art

[0002] With the development of the shipbuilding industry, the network in the fields of communication, control and navigation has extremely high requirements for reliability and response to faults, and has put forward higher requirements for the gradual improvement of Ethernet stability, anti-interference and bandwidth issues. Redundancy design can be used as an effective means to improve equipment reliability. Traditional solutions have always used Ethernet dual redundancy, which mainly refers to the Ethernet on the device side connected to different switches, and dual network nodes are built through switches. The information sending end selects an Ethernet end (primary path) to send information. When it fails and cannot send information, the other Ethernet end (backup path) automatically replaces the faulty Ethernet end (primary path) to send information to the outside.

[0003] In order to meet the needs of ship users for Ethernet dual redundant information, information is sent to different levels of user terminals through a three-level transmission link. To ensure that users at each level of the link use the navigation information correctly, an online monitoring Ethernet dual redundant three-level transmission link is designed to make timely positioning for faults at any level in the link.

[0004] The method of online monitoring of Ethernet dual-redundant three-level transmission links can provide a reference for real-time troubleshooting and positioning in complex link application scenarios. However, a search of existing domestic documents and materials has found that this method is still blank.

[0005] Therefore, the present invention proposes a method for online monitoring of an Ethernet dual-redundancy three-level transmission link. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and to propose a method for online monitoring of Ethernet dual-redundant three-level transmission links, which can achieve the functional and performance requirements of Ethernet transmission information reliability.

[0007] The present invention solves the practical problem by adopting the following technical solutions:

[0008] A system for online monitoring of an Ethernet dual-redundant three-level transmission link, comprising: a first network at an information sending end and a second network at the information sending end, for realizing online monitoring;

[0009] The output end of the first network of the information sending end is connected to the first terminal device through a portable switch, so as to ensure that when a problem occurs in the first network, the first terminal device can normally receive the information of the information sending end through the second network through the portable switch, so as to ensure that the first terminal device receives the information accurately, and serves as a comparison basis for the accuracy and correctness of the information received by the second terminal device;

[0010] The output end of the first network of the information sending end is also connected to the first level one gateway isolation switch for information first level isolation; the first level one gateway isolation switch is also connected to the first level two gateway isolation switch for information second level isolation;

[0011] The first and second level gateway isolation switches are connected to the user end and the second terminal device respectively, and are used to ensure that the second terminal device and the user end receive information normally, and compare the accuracy and correctness of the received information with the first terminal device.

[0012] Moreover, the output end of the first level 1 gateway isolation switch and the output end of the first level 2 gateway isolation switch are also respectively connected to the mirror port admission module, which is used to detect whether the gateway isolation device is congested during the information transmission process, resulting in the inability to continue transmitting information.

[0013] Furthermore, the output end of the second network of the information sending end is connected to the first terminal device through a portable switch, so as to ensure that when a problem occurs in the second network, the first terminal device can normally receive the information of the information sending end through the first network through the portable switch, so as to ensure that the first terminal device receives the information accurately, and serves as a comparison basis for the accuracy and correctness of the information received by the second terminal device;

[0014] The output end of the second network of the information sending end is also connected to the second first-level gateway isolation switch for first-level information isolation; the second first-level gateway isolation switch is also connected to the second second-level gateway isolation switch for second-level information isolation;

[0015] The second secondary gateway isolation switch is connected to the user end and the first secondary gateway isolation switch, and is used for the second terminal device and the user end to normally receive information, and to compare the accuracy and correctness of the received information with the first terminal device;

[0016] Moreover, the output end of the second level 1 gateway isolation switch and the output end of the second level 2 gateway isolation switch are also respectively connected to the mirror port admission module, which is used to detect whether the gateway isolation device is congested during the information transmission process, resulting in the inability to continue to transmit the information;

[0017] A method for online monitoring of an Ethernet dual-redundant three-level transmission link comprises the following steps:

[0018] Step 1: Connect the first network of the information sending end, the second network of the information sending end and the first terminal device through a portable switch;

[0019] Step 2: connect the first network of the information sending end, the second first-level gateway isolation switch, and the first and second-level gateway isolation switches through the first first-level gateway isolation switch, and set a mirror port on the first first-level gateway isolation switch;

[0020] Step 3: connect the second level 2 gateway isolation switch, the second terminal device, and the user end through the first level 2 gateway isolation switch, and set a mirror port on the first level 2 gateway isolation switch;

[0021] Step 4: connect the second network of the information sending end and the second second-level gateway isolation switch through the second first-level gateway isolation switch, and set a mirror port on the second first-level gateway isolation switch;

[0022] Step 5: Set up a mirror port on the second level 2 gateway isolation switch;

[0023] Step 6: Open the corresponding monitoring software of the first terminal device, the mirror port set on the first level 1 gateway isolation switch, the mirror port set on the first level 2 gateway isolation switch, the mirror port set on the second level 1 gateway isolation switch, the mirror port set on the second level 2 gateway isolation switch, the second terminal device, and the user end, and start monitoring and recording.

[0024] Advantages and beneficial effects of the present invention:

[0025] 1. The present invention proposes a method for online monitoring of Ethernet dual-redundant three-level transmission links, which divides the system into subsystems with independent processing capabilities and non-interference. Each subsystem is isolated from network storms, and usually uses a gateway isolation device to isolate information outside the system; when the user needs to transmit and process information across subsystems, a two- to three-level transmission link is used. The present invention monitors the second and third levels of the three-level link at the information sending end, and through hardware power-on testing, test environment establishment, and test verification processes, it is confirmed that the present invention realizes the correctness and reliability of the Ethernet dual-redundant three-level transmission link, meets user needs and design requirements, and has certain practical significance.

[0026] 2. The present invention connects network 1 and network 2 to the first terminal device through a portable switch, and the standby link can be quickly and seamlessly switched to automatically take on the data transmission task. In the three-level transmission link of the present invention, the information transmission in each level of the link is recorded and monitored in real time to determine what causes congestion in a certain link, ensuring that data can be transmitted uninterruptedly and smoothly in the three-level transmission link. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a block diagram of the three-level link monitoring structure of the present invention;

[0028] Figure 2 This is a diagram of the verification steps of the test method of the present invention. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0030] A system for online monitoring of an Ethernet dual-redundant three-level transmission link, comprising: a first network at an information sending end and a second network at the information sending end, for realizing online monitoring;

[0031] The output end of the first network of the information sending end is connected to the first terminal device through a portable switch, so as to ensure that when a problem occurs in the first network, the first terminal device can normally receive the information of the information sending end through the second network through the portable switch, so as to ensure that the first terminal device receives the information accurately, and serves as a comparison basis for the accuracy and correctness of the information received by the second terminal device;

[0032] The output end of the first network of the information sending end is also connected to the first level one gateway isolation switch for information first level isolation; the first level one gateway isolation switch is also connected to the first level two gateway isolation switch for information second level isolation;

[0033] The first and second level gateway isolation switches are connected to the user end and the second terminal device respectively, and are used to ensure that the second terminal device and the user end receive information normally, and compare the accuracy and correctness of the received information with the first terminal device;

[0034] The output end of the first level 1 gateway isolation switch and the output end of the first level 2 gateway isolation switch are also respectively connected to the mirror port admission module, which is used to detect whether the gateway isolation device is congested during the information transmission process, resulting in the inability to continue to transmit the information;

[0035] The output end of the second network of the information sending end is connected to the first terminal device through a portable switch, so as to ensure that when a problem occurs in the second network, the first terminal device can normally receive the information of the information sending end through the first network through the portable switch, so as to ensure that the first terminal device receives the information accurately, and serves as a comparison basis for the accuracy and correctness of the information received by the second terminal device;

[0036] The output end of the second network of the information sending end is also connected to the second first-level gateway isolation switch for first-level information isolation; the second first-level gateway isolation switch is also connected to the second second-level gateway isolation switch for second-level information isolation;

[0037] The second secondary gateway isolation switch is connected to the user end and the first secondary gateway isolation switch, and is used for the second terminal device and the user end to normally receive information, and to compare the accuracy and correctness of the received information with the first terminal device;

[0038] The output end of the second level 1 gateway isolation switch and the output end of the second level 2 gateway isolation switch are also respectively connected to the mirror port admission module, which is used to detect whether the gateway isolation device is congested during the information transmission process, resulting in the inability to continue to transmit the information;

[0039] A method for online monitoring of an Ethernet dual-redundant three-level transmission link comprises the following steps:

[0040] Step 1: Connect the first network of the information sending end, the second network of the information sending end and the first terminal device through a portable switch;

[0041] Step 2: connect the first network of the information sending end, the second first-level gateway isolation switch, and the first and second-level gateway isolation switches through the first first-level gateway isolation switch, and set a mirror port on the first first-level gateway isolation switch;

[0042] Step 3: connect the second level 2 gateway isolation switch, the second terminal device, and the user end through the first level 2 gateway isolation switch, and set a mirror port on the first level 2 gateway isolation switch;

[0043] Step 4: connect the second network of the information sending end and the second second-level gateway isolation switch through the second first-level gateway isolation switch, and set a mirror port on the second first-level gateway isolation switch;

[0044] Step 5: Set up a mirror port on the second level 2 gateway isolation switch;

[0045] Step 6: Open the corresponding monitoring software of the first terminal device, the mirror port set on the first level 1 gateway isolation switch, the mirror port set on the first level 2 gateway isolation switch, the mirror port set on the second level 1 gateway isolation switch, the mirror port set on the second level 2 gateway isolation switch, the second terminal device, and the user end, and start monitoring and recording.

[0046] In this embodiment, the application circuit design of the Ethernet dual-redundant three-level transmission link is as follows:

[0047] 1) Online monitoring of information sending end network 1 and network 2

[0048] In order to ensure that the online monitoring information of network 1 and network 2 is consistent with the information they output to the outside, the normal transmission of the information link is guaranteed after the information is transferred through a customized transfer plug socket at the information sending end.

[0049] 2) Online monitoring of primary gateway isolation switches and secondary gateway isolation switches

[0050] In order to reduce the load on the gateway isolation device, the free sockets are used on the gateway isolation switch, and the ports to be monitored are mapped to the free sockets through the mirror port.

[0051] 3) Online monitoring implementation at the user end

[0052] In order to ensure that the information monitored online by the user is consistent with the information it receives, the normal transmission of the information link is guaranteed after it is transferred through a customized transfer plug socket at the user end.

[0053] In this embodiment, the test verification and effect analysis are shown in Figure 2 The test method verification steps shown are as follows:

[0054] 1. Hardware power-on test: Hardware is the premise and foundation of system application, so there must be no problems with hardware design. Make sure that the power supply, clock and configuration signals are normal, and that there are no short circuits or cold solder joints on the pins of each device;

[0055] 2. Test environment establishment: The test environment must be correctly configured to lay a good foundation for subsequent tests. Network 1 outputs two links, one is connected to the first terminal device through a portable switch for online monitoring of the input end, and the other is connected to the first level gateway isolation switch using mirror port recording to ensure normal transmission of the information link. The first and second level gateway isolation switches with isolation function use mirror port recording to ensure normal transmission of the information link, and connect two links, one to the second terminal device for online monitoring of the input end, and the other to the user end to ensure normal transmission of the information link.

[0056] Test verification process: After correctly implementing 1 and 2 above, check whether the information on the first terminal device and the second terminal device is consistent with the information input.

[0057] Analysis of test results: Using Ethernet dual-redundant three-level transmission links, we compared the two methods. The actual ship was tested at the dock for nearly a month and underwent more than 40 days of continuous sailing tests. Human fault intervention and software code intervention were used to verify the transmission function of the online monitoring Ethernet dual-redundant three-level transmission link, so as to locate the faults in a timely manner and meet the design requirements.

[0058] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A system for online monitoring of Ethernet dual-redundant three-level transmission links, characterized in that: include: The first network of the information sending end and the second network of the information sending end are used to realize online monitoring; The output end of the first network of the information sending end is connected to the first terminal device through a portable switch, so as to ensure that when a problem occurs in the first network, the first terminal device can normally receive the information of the information sending end through the second network through the portable switch, so as to ensure that the first terminal device receives the information accurately, and serves as a comparison basis for the accuracy and correctness of the information received by the second terminal device; The output end of the first network of the information sending end is also connected to the first level one gateway isolation switch for information first level isolation; the first level one gateway isolation switch is also connected to the first level two gateway isolation switch for information second level isolation; The first and second level gateway isolation switches are connected to the user end and the second terminal device respectively, and are used to ensure that the second terminal device and the user end receive information normally, and compare the accuracy and correctness of the received information with the first terminal device.

2. A system for online monitoring of Ethernet dual-redundant three-level transmission links according to claim 1, characterized in that: The output ends of the first-level gateway isolation switch and the first-level second-level gateway isolation switch are also respectively connected to the mirror port admission module, which is used to detect whether the gateway isolation device is congested during the information transmission process, resulting in the inability to continue transmitting information.

3. A system for online monitoring of Ethernet dual-redundant three-level transmission links according to claim 1, characterized in that: The output end of the second network of the information sending end is connected to the first terminal device through a portable switch, so as to ensure that when a problem occurs in the second network, the first terminal device can normally receive the information of the information sending end through the first network through the portable switch, so as to ensure that the first terminal device receives the information accurately, and serves as a comparison basis for the accuracy and correctness of the information received by the second terminal device; The output end of the second network of the information sending end is also connected to the second first-level gateway isolation switch for first-level information isolation; the second first-level gateway isolation switch is also connected to the second second-level gateway isolation switch for second-level information isolation; The second secondary gateway isolation switch is connected to the user end and the first secondary gateway isolation switch, and is used for the second terminal device and the user end to normally receive information, and to compare the accuracy and correctness of the received information with the first terminal device.

4. A system for online monitoring of Ethernet dual-redundant three-level transmission links according to claim 1, characterized in that: The output ends of the second-level gateway isolation switch and the second-level gateway isolation switch are also respectively connected to the mirror port admission module, which is used to detect whether the gateway isolation device is congested during the information transmission process, resulting in the inability to continue transmitting information.

5. A method for online monitoring of Ethernet dual-redundant three-level transmission links, characterized in that: The following steps are involved: Step 1: Connect the first network of the information sending end, the second network of the information sending end and the first terminal device through a portable switch; Step 2: connect the first network of the information sending end, the second first-level gateway isolation switch, and the first and second-level gateway isolation switches through the first first-level gateway isolation switch, and set a mirror port on the first first-level gateway isolation switch; Step 3: connect the second level 2 gateway isolation switch, the second terminal device, and the user end through the first level 2 gateway isolation switch, and set a mirror port on the first level 2 gateway isolation switch; Step 4: connect the second network of the information sending end and the second second-level gateway isolation switch through the second first-level gateway isolation switch, and set a mirror port on the second first-level gateway isolation switch; Step 5: Set up a mirror port on the second level 2 gateway isolation switch; Step 6: Open the corresponding monitoring software of the first terminal device, the mirror port set on the first level 1 gateway isolation switch, the mirror port set on the first level 2 gateway isolation switch, the mirror port set on the second level 1 gateway isolation switch, the mirror port set on the second level 2 gateway isolation switch, the second terminal device, and the user end, and start monitoring and recording.

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