CN113014441B

CN113014441B - Network port loop detection method and system

Info

Publication number: CN113014441B
Application number: CN201911317473.3A
Authority: CN
Inventors: 吕京梅; 韦桂锋
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2023-07-14
Anticipated expiration: 2039-12-19
Also published as: CN113014441A

Abstract

The embodiment of the invention relates to a network port loop detection method and a system, wherein the method comprises the following steps: receiving and responding to a first data reading instruction to read a first module controller identification group from a first system controller; receiving and responding to a second data reading instruction to read a second module controller identification group from a second system controller; processing the first module controller identification group and the second module controller identification group to obtain a processed first module controller identification group and a processed second module controller identification group; determining that a loop exists between a first data interface of the first system controller and a second data interface of the second system controller in response to the processed first module controller identification group being the same as the processed second module controller identification group; and displaying a loop relationship between the first data interface of the first system controller and the second data interface of the second system controller. The embodiment of the invention can realize the automatic detection of the network port loop relation between the system controllers.

Description

Network port loop detection method and system

Technical Field

The invention relates to the technical field of display control, in particular to a network port loop detection method and a network port loop detection system.

Background

At present, the LED display screen is widely applied to various occasions in our daily life due to the characteristics of high visibility, low power consumption and the like. LED display screen applications are not separated from LED display control systems, which typically include a system controller (e.g., a transmit card) and a plurality of module controllers (e.g., receive cards, scan cards) electrically connected to the system controller, with each module controller being configured to carry one or more LED light panel modules in an LED display screen body.

In the leasing market, a plurality of system controllers are needed for realizing the display of the large-sized LED display screen, a backup mechanism is needed to be realized among the plurality of system controllers for ensuring the stability of the LED display screen control system, namely, one network port of each of the two system controllers outputs the same video source and command to a receiving card at the same time, one of the two system controllers is a main system controller, the other is a backup system controller, the network port of the main system controller is a main network port, the network port of the backup system controller is a backup network port, the receiving card receives the video source and command of the main network port of the main system controller, and the video source and command of the backup network port of the backup system controller are received under the condition that the main network port fails. However, in the initial stage of on-site arrangement, the network port loop relation between the system controllers cannot be actively detected at present, and thus a lot of inconvenience is brought to on-site debugging personnel. Therefore, how to automatically detect the network port loop relationship between the system controllers is a technical problem to be solved in the invention.

Disclosure of Invention

Therefore, the embodiment of the invention provides a network port loop detection method and a network port loop detection system, which can realize the automatic detection of the network port loop relation between the system controllers.

In one aspect, in the network port loop detection method provided by the embodiment of the invention, a first data reading instruction is received and responded to, so that a first module controller identification group is read from a first system controller, wherein the first module controller identification group comprises an identification of at least one first module controller carried by a first data interface of the first system controller; receiving and responding to a second data reading instruction to read a second module controller identification group from a second system controller, wherein the second module controller identification group comprises at least one identification of a second module controller carried by a second data interface of the second system controller; processing the first module controller identification group and the second module controller identification group to obtain a processed first module controller identification group and a processed second module controller identification group; determining that a loop exists between the first data interface of the first system controller and the second data interface of the second system controller in response to the processed first module controller identification set and the processed second module controller identification set being the same; and displaying a loop relationship between the first data interface of the first system controller and the second data interface of the second system controller.

In the prior art, the network port loop relation between the system controllers cannot be actively detected, and a lot of inconvenience is brought to field debugging personnel. According to the network port loop detection method disclosed by the embodiment, after the first module controller identification group input by the first system controller and the second module controller identification group input by the second system controller are processed, the loop exists between the first data interface of the first system controller and the second data interface of the second system controller in response to the fact that the two processed module controller identification groups are the same, and the loop relation between the first data interface of the first system controller and the second data interface of the second system controller is displayed, so that the network port loop relation between the system controllers is automatically detected, the debugging flow of the system is simplified, the debugging time is saved, convenience is brought to field debugging personnel, the working efficiency is improved, the system is more intelligent and flexible, the loop relation is directly displayed more intuitively, and the user experience is improved.

In one embodiment of the present invention, the processing the first module controller identifier group and the second module controller identifier group to obtain a processed first module controller identifier group and a processed second module controller identifier group includes: and adjusting the sequence of the identifications of the at least one first module controller included in the first module controller identification group and the sequence of the identifications of the at least one second module controller included in the second module controller identification group according to a unified rule to obtain the processed first module controller identification group and the processed second module controller identification group.

On the other hand, the network port loop detection system provided by the embodiment of the invention comprises: an upper computer; the first system controller is connected with the upper computer and comprises a first data interface; the second system controller is connected with the upper computer and comprises a second data interface; the plurality of module controllers are mutually cascaded, a first stage of module controllers in the plurality of module controllers are adjacently connected with the first data interface of the first system controller, and a last stage of module controllers are adjacently connected with the second data interface of the second system controller; the upper computer is used for executing any network port loop detection method.

In one embodiment of the invention, each of the module controllers has a plurality of data interfaces and is configured to: generating a plurality of corresponding first type broadcast packets according to initial identification information of each data interface, wherein each first type broadcast packet comprises the initial identification information of the corresponding data interface, and the initial identification information of each data interface comprises an identification of the module controller and an identification of the data interface; transmitting the plurality of first type broadcast packets to the plurality of data interfaces for output; and generating a second type broadcast packet containing the current identification information of the plurality of data interfaces according to the current identification information of each of the plurality of data interfaces, specifically comprising: when a certain data interface in the plurality of data interfaces is provided with an input first type broadcast packet, updating the initial identification information of the data interface according to the input first type broadcast packet to obtain the current identification information of the data interface; when a certain data interface in the plurality of data interfaces does not input a first type broadcast packet, taking the initial identification information of the data interface as the current identification information of the data interface; and transmitting said second type broadcast packet to each of said data interfaces for output; the first system controller is configured to receive the first type broadcast packet and a plurality of second type broadcast packets input from the first data interface, and identify the plurality of module controllers carried by the first data interface according to the received first type broadcast packet and the received plurality of second type broadcast packets to obtain the first module controller identification group; the second system controller is configured to receive the first type broadcast packet and a plurality of second type broadcast packets input from the second data interface, and identify the plurality of module controllers carried by the second data interface according to the received first type broadcast packet and the plurality of second type broadcast packets to obtain the second module controller identification group.

In one embodiment of the invention, the first system controller is specifically configured to: receiving the first type broadcast packet input from the first data interface; analyzing the first type broadcast packet input from the first data interface to obtain initial identification information of a first target data interface in a first target module controller; the first target module controller is the first-stage module controller, and the first target data interface is one data interface which is adjacently connected with the first data interface in a plurality of data interfaces of the first target module controller; receiving a plurality of the second type broadcast packets input from the first data interface; wherein a plurality of the second type broadcast packets input from the first data interface include current identification information of a plurality of data interfaces of a corresponding one of the plurality of module controllers; identifying the plurality of module controllers according to the initial identification information of the first target data interface and a plurality of the second type broadcast packets input from the first data interface to obtain the first module controller identification group; the first module controller identification group is saved, and the first data reading instruction is sent to the upper computer; the second system controller is specifically configured to: receiving the first type broadcast packet input from the second data interface; analyzing the first type broadcast packet input from the second data interface to obtain initial identification information of a second target data interface in a second target module controller; the second target module controller is the last stage module controller, and the second target data interface is one data interface which is adjacently connected with the second data interface in a plurality of data interfaces of the second target module controller; receiving a plurality of the second type broadcast packets input from the second data interface; wherein a plurality of the second type broadcast packets input from the second data interface include current identification information of a plurality of data interfaces of a corresponding one of the plurality of module controllers; identifying a plurality of second module controllers according to the initial identification information of the second target data interface and a plurality of second type broadcast packets input from the second data interface to obtain a second module controller identification group; and storing the second module controller identification group and sending the second data reading instruction to the upper computer.

In one embodiment of the present invention, the initial identification information of the first target data interface includes an identification of the first target module controller and an identification of the first target data interface; the initial identification information of the second target data interface comprises an identification of the second target module controller and an identification of the second target data interface; the first target module controller is identified as the MAC address of the first target module controller, and the second target module controller is identified as the MAC address of the second target module controller.

In one embodiment of the present invention, the last three bytes of the destination MAC address field of the first type broadcast packet are 0xffffffff, and the six bytes of the destination MAC address field of the second type broadcast packet are 0 xffffffffff.

In one embodiment of the present invention, the first system controller is configured to identify the plurality of module controllers according to the initial identification information of the first target data interface and a plurality of the second type broadcast packets input from the first data interface to obtain a first module controller identification group, and specifically includes: analyzing each second type broadcast packet input from the first data interface to obtain respective current identification information of a plurality of data interfaces of one module controller corresponding to the second type broadcast packet; when the current identification information of a certain data interface is the same as the initial identification information of the first target data interface, determining that the identification of a module controller contained in the current identification information of another data interface of the module controller where the data interface is located is the identification of a later-stage module controller of the first target module controller; when the identification of the module controller contained in the current identification information of a certain data interface is the same as the identification of the first target module controller contained in the initial identification information of the first target data interface, but the identification of the contained data interface is different from the identification of the first target data interface contained in the initial identification information of the first target data interface, determining that the identification of the module controller contained in the current identification information of the other data interface of the module controller where the data interface is located is the identification of the second-stage module controller of the first target module controller.

On the other hand, the network port loop detection system provided by the embodiment of the invention comprises: an upper computer; the first system controller is connected with the upper computer and comprises a first data interface; the second system controller is connected with the upper computer and comprises a second data interface; the plurality of module controllers are mutually cascaded, a first stage module controller in the plurality of module controllers is adjacently connected with the first data interface of the first system controller, and a last stage module controller in the plurality of module controllers is adjacently connected with the second data interface of the second system controller; wherein the first system controller is configured to output a data broadcast packet to the plurality of module controllers via the first data interface, so that the plurality of module controllers receive and forward the data broadcast packet; the second system controller is configured to receive the input data broadcast packet from the second data interface, parse the data broadcast packet to obtain a target physical address, store the target physical address and a local physical address in association, send a data reading instruction to the upper computer, and read the target physical address and the local physical address from the second system controller by the upper computer in response to the data reading instruction, and determine that a loop exists between the first data interface of the first system controller corresponding to the target physical address and the second data interface of the second system controller corresponding to the local physical address in response to the target physical address and the local physical address, and display a loop relationship between the first data interface of the first system controller and the second data interface of the second system controller.

In the prior art, the network port loop relation between the system controllers cannot be actively detected, and a lot of inconvenience is brought to field debugging personnel. According to the network port loop detection system disclosed by the embodiment, the first system controller outputs a data broadcast packet to the second system controller through the plurality of module controllers, the second system controller analyzes the data broadcast packet to obtain a target physical address, correlates and stores the target physical address and a local physical address, then sends a data reading instruction to the upper computer, and the upper computer responds to the data reading instruction to read the target physical address and the local physical address and judges that the target physical address and the local physical address are different, so that a loop exists and a loop relation is displayed, the network port loop relation between the automatic detection system controllers can be realized, the debugging flow of the system is simplified, the debugging time is saved, convenience is brought to field debugging personnel, the working efficiency is improved, the system is more intelligent and flexible, the loop relation is directly displayed more intuitively, and the user experience is improved.

On the other hand, the network port loop detection system provided by the embodiment of the invention comprises an upper computer; the first system controller is connected with the upper computer and comprises a first data interface; the second system controller is connected with the upper computer and comprises a second data interface; the plurality of module controllers are mutually cascaded, a first stage module controller in the plurality of module controllers is adjacently connected with the first data interface of the first system controller, and a last stage module controller in the plurality of module controllers is adjacently connected with the second data interface of the second system controller; wherein the first system controller is configured to output a data broadcast packet to the plurality of module controllers via the first data interface, so that the plurality of module controllers receive and forward the data broadcast packet; the second system controller is configured to receive the input data broadcast packet from the second system controller, parse the input data broadcast packet to obtain a target physical address, store the target physical address and the local physical address in association and send a data reading instruction to the upper computer in response to the difference between the target physical address and the local physical address, read the target physical address and the local physical address from the second system controller in response to the data reading instruction by the upper computer, and determine that a loop exists between the first data interface of the first system controller corresponding to the target physical address and the second data interface of the second system controller corresponding to the local physical address according to the target physical address and the local physical address, and display a loop relationship between the first data interface of the first system controller and the second data interface of the second system controller.

In the prior art, the network port loop relation between the system controllers cannot be actively detected, and a lot of inconvenience is brought to field debugging personnel. According to the network port loop detection system disclosed by the embodiment, the first system controller outputs a data broadcast packet to the second system controller through the plurality of module controllers, the second system controller analyzes the data broadcast packet to obtain a target physical address, the target physical address and the local physical address are stored in an associated mode after judging that the target physical address is different from the local physical address, then a data reading instruction is sent to the upper computer, the upper computer responds to the data reading instruction to read the target physical address and the local physical address so as to determine that a loop exists and display the loop relation, the network port loop relation between the automatic detection system controllers can be achieved, the debugging flow of the system is simplified, the debugging time is saved, convenience is brought to field debugging personnel, the working efficiency is improved, the system is more intelligent and flexible, the loop relation is displayed directly more intuitively, and the user experience is improved.

From the above, the technical features of the present invention may have one or more of the following advantages: the network port loop relation among the system controllers can be automatically detected, the debugging flow of the system is simplified, the debugging time is saved, convenience is brought to field debugging personnel, the working efficiency is improved, the system is more intelligent and flexible, the loop relation is directly displayed more intuitively, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an architecture of a network port loop detection system according to an embodiment of the present invention.

Fig. 2 is a schematic diagram showing an initial state and a trained state of a plurality of module controllers electrically connected between two data interfaces of two system controllers according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a data interface loop relationship between upper computer display system controllers according to an embodiment of the invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1, a network port loop detection system 10 according to an embodiment of the present invention includes: the host computer 11, the first system controller 121, the second system controller 122, and a plurality of module controllers 131-134.

The first system controller 121 is connected to the host computer 11 and includes a first data interface 1211. The second system controller 122 is connected to the host computer 11 and includes a second data interface 1221. The plurality of module controllers 131-134 are cascaded with each other, and a first stage module controller, i.e., module controller 131, of the plurality of module controllers is adjacently connected to a first data interface 1211 of the first system controller 121 and a last stage module controller, i.e., module controller 134, is adjacently connected to a second data interface 1221 of the second system controller 122. Of course, the present invention is not limited to fig. 1, i.e., the system controller, the data interfaces included in the system controller, the number of module controllers, and the cascade manner of the module controllers are not limited in the embodiment of the present invention. The first system controller 121 and the second system controller 122 are, for example, transmitting cards in an LED display control system, and each of the module controllers 131 to 134 is, for example, receiving cards (or scan cards) in an LED display control system.

As described above, the first system controller 121 and the second system controller 122 of the present embodiment are used to identify the first type broadcast packet and the second type broadcast packet that are broadcast by the module controllers 131 to 134 and input through their own data interfaces. The respective module controllers 131 to 134 issue a first type broadcast packet, which is called a node discovery packet, and a second type broadcast packet, which is called a training packet, to each other in order to make the expression more visual. The module controllers respectively identify the connection relation between the adjacent module controllers, the node broadcast packet is only transmitted between the adjacent module controllers, the adjacent topology relation of the module controllers is recorded in the training packet, the training packet is sent to the first system controller 121 through the first data interface 1211, and is sent to the second system controller 122 through the second data interface 1221, so that the first system controller 121 and the second system controller 122 respectively receive the input node discovery packet and the training packet from the respective data interfaces to identify the module controllers loaded by the respective data interfaces, learn and obtain the module controller identification groups corresponding to the respective data interfaces, upload the module controller identification groups to the upper computer 11, and judge and display the loop relation between the first data interface 1211 of the first system controller 121 and the second data interface 1221 of the second system controller 122 by the upper computer 11.

Specifically, each of the module controllers 131-134 has a plurality of data interfaces, where the plurality of data interfaces mentioned are, for example, two interfaces, and each module controller is, for example, configured to: generating a plurality of corresponding first type broadcast packets according to initial identification information of each data interface, wherein each first type broadcast packet comprises the initial identification information of the corresponding data interface, and the initial identification information of each data interface comprises an identification of the module controller and an identification of the data interface; the mentioned identity of the module controller is for example the MAC address or other unique identity of the module controller; transmitting the plurality of first type broadcast packets to the plurality of data interfaces for output; and generating a second type broadcast packet containing the current identification information of the plurality of data interfaces according to the current identification information of each of the plurality of data interfaces, specifically comprising: when a certain data interface in the plurality of data interfaces is provided with an input first type broadcast packet, updating the initial identification information of the data interface according to the input first type broadcast packet to obtain the current identification information of the data interface; when a certain data interface in the plurality of data interfaces does not input a first type broadcast packet, taking the initial identification information of the data interface as the current identification information of the data interface; and transmitting the second type broadcast packet to each of the data interfaces for output.

The first system controller 121 is configured to receive the first type broadcast packet and the plurality of second type broadcast packets input from the first data interface 1211, and identify a plurality of module controllers, such as module controllers 131-134, carried by the first data interface 1211 according to the received first type broadcast packet and the plurality of second type broadcast packets to obtain the first module controller identification group. The second system controller 122 is configured to receive the first type broadcast packet and the plurality of second type broadcast packets input from the second data interface 1221, and identify a plurality of module controllers, such as module controllers 131-134, carried by the second data interface 1221 according to the received first type broadcast packet and the plurality of second type broadcast packets, to obtain the second module controller identification group.

The upper computer 11 is configured to receive and read, in response to a first data reading instruction, a first module controller identifier group from the first system controller 121, where the first module controller identifier group includes an identifier of at least one first module controller carried by the first data interface 1211 of the first system controller 121; receiving and reading a second module controller identification group from the second system controller 122 in response to the second data reading instruction, wherein the mentioned second module controller identification group includes an identification of at least one second module controller carried by the second data interface 1221 of the second system controller 122; wherein the mentioned identification of the at least first module controller and the mentioned identification of the at least one second module controller may be understood as the identifications of the plurality of module controllers 131-134; processing the first module controller identification group and the second module controller identification group to obtain a processed first module controller identification group and a processed second module controller identification group; in response to the processed first set of module controller identifications and the processed second set of module controller identifications being the same, determining that a loop exists between the first data interface 1211 of the first system controller 121 and the second data interface 1221 of the second system controller 122; and a loop relationship between the first data interface 1211 of the first system controller 121 and the second data interface 1221 of the second system controller 122 is shown.

Further, the upper computer 11 is configured to process the first module controller identifier group and the second module controller identifier group to obtain a processed first module controller identifier group and a processed second module controller identifier group, where the processed first module controller identifier group and the processed second module controller identifier group specifically include: and adjusting the sequence of the identifications of the at least one first module controller included in the first module controller identification group and the sequence of the identifications of the at least one second module controller included in the second module controller identification group according to a unified rule to obtain the processed first module controller identification group and the processed second module controller identification group. Therefore, the relation between the module controller identification groups can be rapidly judged. The unified rule mentioned therein is for example a small to large order.

Further, the first system controller 121 is specifically configured to receive a first type broadcast packet input from the first data interface 1211; analyzing the first type broadcast packet input from the first data interface 1211 to obtain initial identification information of a first target data interface in the first target module controller; wherein the first target module controller mentioned is a first stage module controller such as the module controller 131 shown in fig. 1, and the first target data interface mentioned is one data interface adjacent to the first data interface 1211 among the plurality of data interfaces of the first target module controller; receiving a plurality of second type broadcast packets input from the first data interface 1211; wherein a plurality of the second type broadcast packets input from the first data interface 1211 include current identification information of a plurality of data interfaces of a corresponding one of the plurality of module controllers; identifying the plurality of module controllers according to the initial identification information of the first target data interface and a plurality of the second type broadcast packets input from a first data interface 1211 to obtain a first module controller identification group; and saving the first module controller identification group and sending the first data reading instruction to the upper computer 10.

The second system controller 122 is specifically configured to receive the first type broadcast packet input from the second data interface 1221; analyzing the first type broadcast packet input from the second data interface 1221 to obtain initial identification information of the second target data interface in the second target module controller; wherein the second target module controller is a last stage module controller, such as the module controller 134 shown in fig. 1, and the second target data interface is one of the plurality of data interfaces of the second target module controller, which is adjacently connected to the second data interface 1221; receiving a plurality of second type broadcast packets input from the second data interface 1221; wherein a plurality of the second type broadcast packets input from the second data interface 1221 include current identification information of a plurality of data interfaces of a corresponding one of the plurality of module controllers; identifying the plurality of module controllers according to the initial identification information of the second target data interface and a plurality of the second type broadcast packets input from the second data interface 1221 to obtain a second module controller identification group; and storing the second module controller identification group and sending the second data reading instruction to the upper computer 11.

Wherein the mentioned initial identification information of the first target data interface comprises, for example, an identification of the first target module controller and an identification of the first target data interface. The mentioned initial identification information of the second target data interface for example comprises an identification of the second target module controller and an identification of the second target data interface. The first target module controller is identified by, for example, the MAC address or other unique identifier of the first target module controller, and the second target module controller is identified by, for example, the MAC address or other unique identifier of the second target module controller.

Wherein the last three bytes of the destination MAC address field of the first type broadcast packet are referred to as 0xffffffff and the six bytes of the destination MAC address field of the second type broadcast packet are referred to as 0 xffffffffff. Thus, the first type broadcast packet can be ensured not to be transmitted to the cascaded devices, and the second type broadcast packet can be transmitted to the cascaded devices.

Further, the aforementioned first system controller 121 for identifying the plurality of module controllers according to the initial identification information of the first target data interface and the plurality of second type broadcast packets input from the first data interface 1211 to obtain a first module controller group identification includes, for example: parsing each of the second type broadcast packets input from the first data interface 1211 to obtain respective current identification information of a plurality of data interfaces of one module controller corresponding to the second type broadcast packet; when the current identification information of a certain data interface is the same as the initial identification information of the first target data interface, determining that the identification of a module controller contained in the current identification information of another data interface of the module controller where the data interface is located is the identification of a later-stage module controller of the first target module controller; when the identification of the module controller contained in the current identification information of a certain data interface is the same as the identification of the first target module controller contained in the initial identification information of the first target data interface, but the identification of the contained data interface is different from the identification of the first target data interface contained in the initial identification information of the first target data interface, determining that the identification of the module controller contained in the current identification information of the other data interface of the module controller where the data interface is located is the identification of the second-stage module controller of the first target module controller. In this way, the module controller carried by the first data interface 1211 of the first system controller 121 can be quickly identified. Similarly, the second system controller 122 performs the same operation to identify the plurality of module controllers to obtain a second module controller group identifier.

Further, the first system controller 121 is configured to identify the plurality of module controllers according to the initial identification information of the first target data interface and the plurality of second type broadcast packets input from the first data interface 1211 to obtain a first module controller identification group, for example, further includes: and learning the identification of the first target module controller, the identification of the next-stage module controller and the identification of the next-stage module controller to obtain the first module controller identification group. The first system controller 121 can quickly acquire the module controller identification group by learning the identifications of the plurality of module controllers loaded. Similarly, the second system controller 122 performs the same learning operation to obtain the second module controller identification set.

The aforementioned first data interface 1211, second data interface 1221 and the data interfaces on the respective module controllers are, for example, network interfaces.

For ease of understanding, the portal loop detection method performed by the portal loop detection system 10 will be described below with reference to fig. 2 and 3. The first data interface 1211 of the first system controller 121 is, for example, the network port M, and the second data interface 1221 of the second system controller 122 is, for example, the network port N. The plurality of data interfaces of the module controller include, for example, two network ports a and B. Taking the example that a plurality of, for example, four module controllers Rm1-Rm2 and Rn1-Rn2 are electrically connected between the load port M of the first system controller and the load port N of the second system controller as an example, the description will be given.

As shown in fig. 2, the four module controllers are powered on and initialized in the following working modes: each module controller sends a node discovery packet and a training packet from respective network ports a and B, three bytes after the node discovery packet has a destination MAC address field of, for example, 0xffffffff, and the node discovery packet carries the identifier of the corresponding module controller and the identifier of the network port, the training packet sends the current identifier information after the training of the network ports a and B, and six bytes after the training packet has a destination MAC address field of, for example, 0xFFFFFFFFFFFF.

More specifically, initial identification information of the network port a and the network port B of the module controller Rm1 is (Rm 1, a) and (Rm 1, B), respectively, and current identification information after training is (Rm 1, a) and (Rm 2, a), respectively; the initial identification information of the network port A and the network port B of the module controller Rm2 are (Rm 2, A) and (Rm 2, B) respectively, and the current identification information after training is (Rm 1, B) and (Rn 2, B) respectively; the initial identification information of the network port A and the network port B of the module controller Rn2 is (Rn 2, A) and (Rn 2, B), and the current identification information after training is (Rn 1, B) and (Rm 2, B); the initial identification information of the network port A and the network port B of the module controller Rn1 is (Rn 1, A) and (Rn 1, B), and the current identification information after training is (Rn 1, A) and (Rn 2, A). The module controller Rm1 is the first-stage module controller mentioned above, that is, it is a target module controller connected adjacent to the network port M of the first system controller, and the network port a of the module controller Rm1 is a target data interface connected adjacent to the network port M of the first system controller; similarly, the module controller Rn1 is the last-stage module controller mentioned above, that is, it is a target module controller that is connected adjacent to the network port N of the second system controller, and the network port a of the module controller Rn1 is a target data interface that is connected adjacent to the network port N of the second system controller. The network port a and the network port B of the module controller Rm1 output a node discovery packet containing initial identification information (Rm 1, a) and a node discovery packet containing initial identification information (Rm 1, B), respectively, the network port a and the network port B of the module controller Rm2 output a node discovery packet containing initial identification information (Rm 2, a) and a node discovery packet containing initial identification information (Rm 2, B), respectively, the network port a and the network port B of the module controller Rn2 output a node discovery packet containing initial identification information (Rn 2, a) and a node discovery packet containing initial identification information (Rn 2, B), respectively, and the network port a and the network port B of the module controller Rn1 output a node discovery packet containing initial identification information (Rn 1, a) and a node discovery packet containing initial identification information (Rn 1, B), respectively. The net mouth a and net mouth B of the module controller Rm1 each output a training packet containing current identification information (Rm 1, a) and (Rm 2, a), the net mouth a and net mouth B of the module controller Rm2 each output a training packet containing current identification information (Rm 1, B) and (Rn 2, B), the net mouth a and net mouth B of the module controller Rn2 each output a training packet containing current identification information (Rn 1, B) and (Rm 2, B), and the net mouth a and net mouth B of the module controller Rn1 each output a training packet containing current identification information (Rn 1, a) and (Rn 2, a).

In view of the above, the node discovery packet including the initial identification information (Rm 1, a) sent by the network port a of the module controller Rm1 is input to the first system controller from the on-load network port M, and the first system controller analyzes the node discovery packet to identify the initial identification information (Rm 1, a) of the network port a corresponding to the target module controller (i.e., the first-stage module controller under the on-load network port M). Then, the first system controller receives four training packets from the network port M, that is, the training packets including the current identification information (Rm 1, a) and (Rm 2, a) generated by the module controller Rm1, the training packets including the current identification information (Rm 1, B) and (Rn 2, B) generated by the module controller Rm2, the training packets including the current identification information (Rn 1, B) and (Rm 2, B) generated by the module controller Rn2, and the training packets including the current identification information (Rn 1, a) and (Rn 2, a) generated by the module controller Rn1, and analyzes the training packets.

When analyzing the training packet including the current identification information (Rm 1, a) and (Rm 2, a), it is found that (Rm 1, a) in the analyzed current identification information (Rm 1, a) and (Rm 2, a) is the same as the identified initial identification information (Rm 1, a), and the next stage module controller Rm2 of the module controller Rm1 can be determined according to (Rm 2, a) in the analyzed current identification information (Rm 1, a) and (Rm 2, a).

When analyzing the training packet including the current identification information (Rm 1, B) and (Rn 2, B), it is found that the identification (Rm 1) of one module controller among the analyzed current identification information (Rm 1, B) and (Rn 2, B) is the same as the identification of the module controller among the identified initial identification information (Rm 1, a), but the identification (B) of the network port corresponding to the identification (Rm 1) is different from the identification (a) of the network port among the identified initial identification information (Rm 1, a), and it is also found that the identification (Rn 2) of the other module controller among the analyzed current identification information (Rm 1, B) and (Rn 2, B) is different from the identification of the determined module controller Rm2, then the module controller Rn2 of the second stage of module controller Rm1 can be determined based on the identification (Rm 1, B) and (Rn 2, B) of the analyzed current identification information (Rm 1, B).

When analyzing the training packet including the current identification information (Rn 1, B) and (Rm 2, B), it is found that the identification (Rm 2) of one module controller in the analyzed current identification information (Rn 1, B) and (Rm 2, B) is the same as the identification of the determined module controller Rm2, but the identification (Rn 1) of the other module controller is different from the identification of the determined module controller Rn2, and then the last three-stage module controller Rn1 of the module controller Rm1 can be determined according to the analyzed current identification information (Rn 1, B) and (Rn 1, B) in the analyzed current identification information (Rm 2, B).

When analyzing the training packet containing the current identification information (Rn 1, a) and (Rn 2, a), it is found that the identifications (Rn 1) and (Rn 2) of the two module controllers in the current identification information (Rn 1, a) and (Rn 2, a) obtained by analysis are respectively the same as the identifications of the determined module controller Rn1 and module controller Rn2, and then the module controller Rn1 can be determined as the last-stage module controller. So far, each module controller Rm1-Rm2 and Rn1-Rn2 under the network port M of the first system controller can be identified, so that the first module controller identification groups corresponding to the module controllers Rm1-Rm2 and Rn1-Rn2 are obtained through learning as { Rm1, rm2, rn2 and Rn1}, the first system controller stores the learned first module controller identification groups { Rm1, rm2, rn2 and Rn1} in a local RAM, and then a first data reading instruction is sent to an upper computer. In short, the first system controller of this embodiment firstly identifies the node discovery broadcast packet through the network port M to synchronously identify the first-stage module controller Rm1 and the identifier a of the network port connected to the network port M, and then identifies the following module controllers Rm2 and Rn1-Rn2 through four training packets, so that the first module controller identifier groups corresponding to the module controllers Rm1-Rm2 and Rn1-Rn2 are obtained by learning { Rm1, rm2, rn1}, and then stores the first module controller identifier group, and actively transmits a first data reading instruction to the upper computer to inform that the upper computer identifier learning is completed, and data can be read.

Similarly, the second system controller in this embodiment identifies each of the module controllers Rm1-Rm2 and Rn1-Rn2 under the network port N of the second system controller, so as to learn to obtain the second module controller identifier groups { Rn1, rn2, rm1} corresponding to the module controllers Rm1-Rm2 and Rn1-Rn2, and the second system controller stores the learned second module controller identifier groups { Rn1, rn2, rm1} in the local RAM, and then sends a second data reading instruction to the upper computer to inform the upper computer that the identifier learning is completed, so that the data can be read.

The upper computer may read the first module controller identification group { Rm1, rm2, rn1} from the RAM of the first system controller in response to the received first data read instruction, read the second module controller identification group { Rn1, rn2, rm1} from the RAM of the second system controller in response to the received second data read instruction, and then adjust the order of the identifications in the first module controller identification group { Rm1, rm2, rn1} and adjust the order of the identifications in the second module controller identification group { Rn1, rn2, rm1} according to a uniform rule, for example, in order from small to large. For example, the identifiers Rm1 and Rn2 of the module controllers are smaller than Rn2 and Rn1, so that the two obtained processed module controller identifier groups are respectively: after detecting that the identification groups of the module controllers corresponding to the network port M of the first system controller and the network port N of the second system controller are the same, the upper computer can determine that a loop exists between the network port M of the first system controller and the network port N of the second system controller, and displays the loop relationship between the network port M of the first system controller and the network port N of the second system controller, as shown in fig. 3, and the network ports of the two system controllers with the loop relationship are connected and displayed by a line.

In addition, in other embodiments of the present invention, as shown in fig. 1, the first system controller 121 or the second system controller 122 in the network port loop detection system 10 may also transmit the data broadcast packet through the module controllers 131-134, so as to achieve the purpose of automatically detecting the network port loop relationship between the system controllers. The following description will take an example in which the first system controller 121 transmits a data broadcast packet.

The mentioned data broadcast packet is, for example, a field packet in an image data packet, and since the module controller can bi-directionally transmit the broadcast packet between the data interfaces, after the first system controller 121 sends the data broadcast packet through the first data interface 1211, the second data interface 1221 of the second system controller 122 having a loop relationship with the first data interface 1211 of the first system controller 121 can receive the data broadcast packet, so that the MAC address of the data broadcast packet can be determined to be different from the local MAC address by analyzing the data broadcast packet, and further, the loop relationship between the two data interfaces of the two system controllers can be determined.

Specifically, the first system controller 121 is configured to output a data broadcast packet to the plurality of module controllers 131-134 via the first data interface 1211 to be received and forwarded by the plurality of module controllers 131-134. The second system controller 122 is configured to receive the input data broadcast packet from the second data interface 1221, and parse the data broadcast packet to obtain a target physical address; in response to the target physical address and the local physical address being different, the target physical address and the local physical address are stored in association and a data read instruction is sent to the upper computer 11, so that the target physical address and the local physical address are read from the second system controller 122 by the upper computer 11 in response to the data read instruction, and the first data interface 1211 of the first system controller 121 corresponding to the target physical address and the second data interface 1221 of the second system controller 122 corresponding to the local physical address are determined to have a loop according to the target physical address and the local physical address, and the loop relationship between the first data interface 1211 of the first system controller 121 and the second data interface 1221 of the second system controller 122 is displayed.

In addition, in other embodiments of the present invention, the aforementioned step of performing the address determination by the second system controller 122 may also be performed by the host computer 11. That is, the second system controller 122 only analyzes the data broadcast packet to obtain the target physical address, and then stores the target physical address and the local physical address in association with each other, and then sends a data reading instruction to the upper computer 11, and the upper computer 11 reads the two addresses in response to the data reading instruction to determine.

Specifically, the first system controller 121 is configured to output a data broadcast packet to the plurality of module controllers 131-134 via the first data interface 1211 to be received and forwarded by the plurality of module controllers 131-134. The second system controller 122 is configured to receive the input data broadcast packet from the second data interface 1221, parse the data broadcast packet to obtain a target physical address, store the target physical address and a local physical address in association, send a data read instruction to the upper computer 11, read the target physical address and the local physical address from the second system controller 122 in response to the data read instruction by the upper computer 11, determine that a loop exists between the first data interface 1211 of the first system controller 121 corresponding to the target physical address and the second data interface 1221 of the second system controller 122 corresponding to the local physical address in response to the target physical address and the local physical address being different, and display a loop relationship between the first data interface 1211 of the first system controller 121 and the second data interface 1221 of the second system controller 122.

Wherein the aforementioned target physical address and local physical address are MAC addresses.

In summary, the foregoing embodiments of the present invention can automatically detect the network interface loop relationship between the system controllers, simplify the debugging process of the system, save the debugging time, bring convenience to the field debugging personnel, improve the working efficiency, make the system more intelligent and flexible, directly display the loop relationship more intuitive, and improve the user experience.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and/or methods may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and the division of the units/modules is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or modules may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units/modules described as separate units may or may not be physically separate, and units/modules may or may not be physically units, may be located in one place, or may be distributed on multiple network units. Some or all of the units/modules may be selected according to actual needs to achieve the purpose of the embodiment.

In addition, each functional unit/module in the embodiments of the present invention may be integrated in one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated in one unit/module. The integrated units/modules may be implemented in hardware or in hardware plus software functional units/modules.

The integrated units/modules implemented in the form of software functional units/modules described above may be stored in a computer readable storage medium. The software functional units described above are stored in a storage medium and include instructions for causing one or more processors of a computer device (which may be a personal computer, a server, or a network device, etc.) to perform some steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The network port loop detection method is characterized by comprising the following steps of:

receiving and responding to a first data reading instruction to read a first module controller identification group from a first system controller, wherein the first module controller identification group comprises the identification of at least one first module controller carried by a first data interface of the first system controller;

receiving and responding to a second data reading instruction to read a second module controller identification group from a second system controller, wherein the second module controller identification group comprises at least one identification of a second module controller carried by a second data interface of the second system controller;

Processing the first module controller identification group and the second module controller identification group to obtain a processed first module controller identification group and a processed second module controller identification group;

determining that a loop exists between the first data interface of the first system controller and the second data interface of the second system controller in response to the processed first module controller identification set and the processed second module controller identification set being the same; and

displaying a loop relationship between the first data interface of the first system controller and the second data interface of the second system controller;

the first module controller identification group and the second module controller identification group after being processed are processed to obtain a first module controller identification group after being processed and a second module controller identification group after being processed, and the method comprises the following steps of:

and adjusting the sequence of the identifications of the at least one first module controller included in the first module controller identification group and the sequence of the identifications of the at least one second module controller included in the second module controller identification group according to a unified rule to obtain the processed first module controller identification group and the processed second module controller identification group.

2. A portal loop detection system, comprising:

an upper computer;

the first system controller is connected with the upper computer and comprises a first data interface;

the second system controller is connected with the upper computer and comprises a second data interface;

the plurality of module controllers are mutually cascaded, a first stage of module controllers in the plurality of module controllers are adjacently connected with the first data interface of the first system controller, and a last stage of module controllers are adjacently connected with the second data interface of the second system controller;

the upper computer is used for executing the network port loop detection method as claimed in claim 1.

3. The portal loop detection system of claim 2, wherein each of the module controllers has a plurality of data interfaces and is configured to:

generating a plurality of corresponding first type broadcast packets according to initial identification information of each data interface, wherein each first type broadcast packet comprises the initial identification information of the corresponding data interface, and the initial identification information of each data interface comprises an identification of the module controller and an identification of the data interface;

Transmitting the plurality of first type broadcast packets to the plurality of data interfaces for output; and

generating a second type broadcast packet containing the current identification information of the plurality of data interfaces according to the current identification information of each of the plurality of data interfaces, wherein the second type broadcast packet specifically comprises:

when a certain data interface in the plurality of data interfaces is provided with an input first type broadcast packet, updating the initial identification information of the data interface according to the input first type broadcast packet to obtain the current identification information of the data interface;

when a certain data interface in the plurality of data interfaces does not input a first type broadcast packet, taking the initial identification information of the data interface as the current identification information of the data interface; and

transmitting said second type broadcast packets to each of said data interfaces for output;

the first system controller is configured to receive the first type broadcast packet and a plurality of second type broadcast packets input from the first data interface, and identify the plurality of module controllers carried by the first data interface according to the received first type broadcast packet and the received plurality of second type broadcast packets to obtain the first module controller identification group;

The second system controller is configured to receive the first type broadcast packet and a plurality of second type broadcast packets input from the second data interface, and identify the plurality of module controllers carried by the second data interface according to the received first type broadcast packet and the plurality of second type broadcast packets to obtain the second module controller identification group.

4. The portal loop detection system of claim 3, wherein,

the first system controller is specifically configured to:

receiving the first type broadcast packet input from the first data interface;

analyzing the first type broadcast packet input from the first data interface to obtain initial identification information of a first target data interface in a first target module controller; the first target module controller is the first-stage module controller, and the first target data interface is one data interface which is adjacently connected with the first data interface in a plurality of data interfaces of the first target module controller;

receiving a plurality of the second type broadcast packets input from the first data interface; wherein a plurality of the second type broadcast packets input from the first data interface include current identification information of a plurality of data interfaces of a corresponding one of the plurality of module controllers;

Identifying the plurality of module controllers according to the initial identification information of the first target data interface and a plurality of the second type broadcast packets input from the first data interface to obtain the first module controller identification group; and

storing the first module controller identification group and sending the first data reading instruction to the upper computer;

the second system controller is specifically configured to:

receiving the first type broadcast packet input from the second data interface;

analyzing the first type broadcast packet input from the second data interface to obtain initial identification information of a second target data interface in a second target module controller; the second target module controller is the last stage module controller, and the second target data interface is one data interface which is adjacently connected with the second data interface in a plurality of data interfaces of the second target module controller;

receiving a plurality of the second type broadcast packets input from the second data interface; wherein a plurality of the second type broadcast packets input from the second data interface include current identification information of a plurality of data interfaces of a corresponding one of the plurality of module controllers;

Identifying a plurality of second module controllers according to the initial identification information of the second target data interface and a plurality of second type broadcast packets input from the second data interface to obtain a second module controller identification group; and

and storing the second module controller identification group and sending the second data reading instruction to the upper computer.

5. The portal loop detection system of claim 4, wherein the initial identification information of the first target data interface comprises an identification of the first target module controller and an identification of the first target data interface; the initial identification information of the second target data interface comprises an identification of the second target module controller and an identification of the second target data interface; the first target module controller is identified as the MAC address of the first target module controller, and the second target module controller is identified as the MAC address of the second target module controller.

6. The network port loop detection system of claim 3 wherein the last three bytes of the destination MAC address field of the first type of broadcast packet are 0xffffffff and the six bytes of the destination MAC address field of the second type of broadcast packet are 0xFFFFFFFFFFFF.

7. The network port loop detection system of claim 4, wherein the first system controller is configured to identify the plurality of module controllers according to the initial identification information of the first target data interface and the plurality of second type broadcast packets input from the first data interface to obtain a first module controller identification group, and specifically comprises:

analyzing each second type broadcast packet input from the first data interface to obtain respective current identification information of a plurality of data interfaces of one module controller corresponding to the second type broadcast packet;

when the current identification information of a certain data interface is the same as the initial identification information of the first target data interface, determining that the identification of a module controller contained in the current identification information of another data interface of the module controller where the data interface is located is the identification of a later-stage module controller of the first target module controller;

when the identification of the module controller contained in the current identification information of a certain data interface is the same as the identification of the first target module controller contained in the initial identification information of the first target data interface, but the identification of the contained data interface is different from the identification of the first target data interface contained in the initial identification information of the first target data interface, determining that the identification of the module controller contained in the current identification information of the other data interface of the module controller where the data interface is located is the identification of the second-stage module controller of the first target module controller.

8. A portal loop detection system, comprising:

an upper computer;

the plurality of module controllers are mutually cascaded, a first stage module controller in the plurality of module controllers is adjacently connected with the first data interface of the first system controller, and a last stage module controller in the plurality of module controllers is adjacently connected with the second data interface of the second system controller;

wherein the first system controller is configured to output a data broadcast packet to the plurality of module controllers via the first data interface, so that the plurality of module controllers receive and forward the data broadcast packet;

the second system controller is configured to receive the input data broadcast packet from the second data interface, parse the data broadcast packet to obtain a target physical address, store the target physical address and a local physical address in association, send a data reading instruction to the upper computer, and read the target physical address and the local physical address from the second system controller by the upper computer in response to the data reading instruction, and determine that a loop exists between the first data interface of the first system controller corresponding to the target physical address and the second data interface of the second system controller corresponding to the local physical address in response to the target physical address and the local physical address, and display a loop relationship between the first data interface of the first system controller and the second data interface of the second system controller.

9. A portal loop detection system, comprising:

an upper computer;

the second system controller is configured to receive the input data broadcast packet from the second system controller, parse the input data broadcast packet to obtain a target physical address, store the target physical address and the local physical address in association and send a data reading instruction to the upper computer in response to the target physical address and the local physical address, read the target physical address and the local physical address from the second system controller in response to the data reading instruction by the upper computer, and determine that a loop exists between the first data interface of the first system controller corresponding to the target physical address and the second data interface of the second system controller corresponding to the local physical address according to the target physical address and the local physical address, and display a loop relationship between the first data interface of the first system controller and the second data interface of the second system controller.