CN113014442A - Network port loop detection method and network port loop detection system - Google Patents

Abstract

The embodiment of the invention relates to a network port loop detection method and a network port loop detection system, wherein the method comprises the following steps: receiving and parsing a broadcast packet input from a first data interface to obtain a first module controller identification group; receiving and parsing a broadcast packet input from a second data interface to obtain a second group controller identification group; processing the first module controller identification group and the second module controller identification group respectively to obtain a processed first module controller identification group and a processed second module controller identification group; and determining that a loop exists between the first data interface and the second data interface in response to the processed first module controller identification set being the same as the processed second module controller identification set. The embodiment of the invention can realize the automatic detection of the loop relation between the network ports of the single system controller.

Description

Network port loop detection method and network port loop detection 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. The LED display screen is applied to an LED display control system, which typically includes a system controller (e.g., a sending card) and a plurality of module controllers (e.g., a receiving card, a scanning card) electrically connected to the system controller, and each module controller is used for carrying one or more LED lamp panel modules in an LED display screen body.

In the rental market, a backup mechanism is required to be adopted in order to ensure the stability of the LED display screen control system, the backup mechanism mainly comprises two network ports of a sending card which simultaneously output the same video source and command to a receiving card, the two network ports are a main network port and a backup network port respectively, the receiving card receives the video source and the command of the main network port, and the video source and the command of the backup network port are received under the condition that the main network port fails. However, at the initial stage of field arrangement, it is currently impossible to actively detect which two network ports on the sending card form the active/standby loop, which brings much inconvenience to field debugging personnel. Therefore, how to automatically detect the loop relationship between the network ports of the sending card is an urgent technical problem to be solved by the present 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 automatic detection of the loop relation between network ports of a single system controller.

In one aspect, a method for detecting a network interface loop provided in an embodiment of the present invention is applicable to a single system controller, where a first data interface of the system controller is electrically connected to at least one first module controller, and a second data interface of the system controller is electrically connected to at least one second module controller, and the method for detecting a network interface loop includes: receiving and analyzing a broadcast packet input from the first data interface to obtain a first module controller identification group corresponding to the at least one first module controller electrically connected with the first data interface; receiving and analyzing a broadcast packet input from the second data interface to obtain a second module controller identification group corresponding to the at least one second module controller electrically connected with the second data interface; processing the first module controller identification group and the second module controller identification group respectively to obtain a processed first module controller identification group and a processed second module controller identification group; and determining that a loop exists between the first data interface and the second data interface in response to the processed first module controller identification group being the same as the processed second module controller identification group.

In the prior art, which two network ports on a sending card in an LED display screen control system form a main loop and a standby loop cannot be actively detected, so that a lot of inconvenience is brought to field debugging personnel. The network port loop detection method disclosed in this embodiment receives and analyzes the broadcast packets corresponding to the first data interface through the first data interface and the second data interface respectively to obtain the first module controller identification group corresponding to the first data interface and the second module controller identification group corresponding to the second data interface, processes the two module controller identification groups, and then determines that the first data interface and the second data interface form a loop in response to the processed two module controller identification groups being the same, so that the system controller can automatically detect a loop relationship between network ports, simplify a debugging process of the system, save debugging time, bring convenience to field debugging personnel, improve work efficiency, and make the system more intelligent and flexible.

In an embodiment of the present invention, the receiving and parsing the broadcast packet input from the first data interface to obtain a first module controller identification group corresponding to the at least one first module controller electrically connected to the first data interface includes: receiving a 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 target first module controller; wherein the target first module controller is one of the at least one first module controller connected adjacent to the first data interface, and the first target data interface is one of a plurality of data interfaces of the target first module controller connected adjacent to the first data interface; receiving at least one second type broadcast packet input from the first data interface; wherein the at least one second type broadcast packet input from the first data interface includes current identification information of a plurality of data interfaces of a corresponding one of the at least one first module controller; identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface to obtain the first module controller identification group; the receiving and analyzing the broadcast packet input from the second data interface to obtain a second module controller identification group corresponding to the at least one second module controller electrically connected to the second data interface includes: receiving a 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 target second module controller; wherein the target second module controller is one of the at least one second module controller connected adjacent to the second data interface, and the second target data interface is one of a plurality of data interfaces of the target second module controller connected adjacent to the second data interface; receiving at least one second type broadcast packet input from the second data interface; wherein the at least one second type broadcast packet input from the second data interface includes current identification information of a plurality of data interfaces of a corresponding one of the at least one second module controller; identifying the at least one second module controller according to the initial identification information of the second target data interface and the at least one second type broadcast packet input from the second data interface to obtain the second module controller identification group.

In one embodiment of the invention, the initial identification information of the first target data interface comprises an identification of the target first 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 target second module controller and an identification of the second target data interface; wherein the identification of the target first group controller is the MAC address of the target first group controller and the identification of the target second group controller is the MAC address of the target second group 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 xffffffffffffff.

In one embodiment of the present invention, the identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface to obtain a first module controller identification group comprises: analyzing each second type broadcast packet input from the first data interface to obtain the current identification information of each of a plurality of data interfaces of a first 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 the first module controller contained in the current identification information of another data interface of the first module controller where the data interface is located is the identification of a next-stage first module controller of the target first module controller; when the identifier of the first module controller included in the current identifier information of a certain data interface is the same as the identifier of the target first module controller included in the initial identifier information of the first target data interface, but the identifier of the included data interface is different from the identifier of the first target data interface included in the initial identifier information of the first target data interface, determining that the identifier of the first module controller included in the current identifier information of another data interface of the first module controller where the data interface is located is the identifier of a second-level first module controller of the target first module controller.

In one embodiment of the present invention, the identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface to obtain a first module controller identification group further comprises: learning the identification of the target first module controller, the identification of the next-stage first module controller, and the identification of the next-stage first module controller to obtain the first module controller identification group.

In an embodiment of the present invention, the processing the first module controller identifier group and the second module controller identifier group respectively to obtain a processed first module controller identifier group and a processed second module controller identifier group includes: and adjusting the ordering of the identifiers corresponding to the at least one first module controller included in the first module controller identifier group and the ordering of the identifiers corresponding to the at least one second module controller included in the second module controller identifier group according to a unified rule, so as to obtain the processed first module controller identifier group and the processed second module controller identifier group.

In one embodiment of the present invention, after said determining that a loop exists between the first data interface and the second data interface in response to the processed first module controller identification set and the processed second module controller identification set being the same, further comprises: and sending a loop relation instruction of the first data interface and the second data interface with loops to an upper computer, and displaying the loop relation between the first data interface and the second data interface by the upper computer in response to the loop relation instruction.

On the other hand, the network port loop detection system provided by the embodiment of the present invention includes: a system controller including a first data interface and a second data interface; the plurality of module controllers are mutually cascaded, and a first-stage module controller in the plurality of module controllers is electrically connected with the first data interface of the system controller, and a last-stage module controller is electrically connected with the second data interface of the system controller; wherein each of the module controllers has a plurality of data interfaces and is configured to: generating a plurality of first type broadcast packets corresponding to the initial identification information of each of the plurality of data interfaces, wherein each first type broadcast packet contains the initial identification information of the corresponding data interface, and the initial identification information of each data interface includes an identification of the module controller and an identification of the data interface; respectively transmitting the first type broadcast packets to the data interfaces for outputting; 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 first type broadcast packet is input to a certain data interface of the plurality of data interfaces, 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 first type broadcast packet is not input into a certain data interface of the plurality of data interfaces, 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 outbound output; wherein the system controller is configured to receive the first type broadcast packet and the plurality of second type broadcast packets input from the first data interface and the second data interface, respectively, and execute any one of the foregoing gateway loop detection methods.

On the other hand, an embodiment of the present invention provides a method for detecting a loop of an internet access, which is applicable to a single system controller, and a first data interface of the system controller is electrically connected to at least one first module controller, and a second data interface of the system controller is electrically connected to at least one second module controller, where the method for detecting a loop of an internet access includes: receiving a first type broadcast packet input from the first data interface; parsing the first type broadcast packet input from the first data interface to obtain initial identification information of a first target data interface in a target first module controller, wherein the target first module controller is one of the at least one first module controller connected adjacent to the first data interface, and the first target data interface is one of a plurality of data interfaces of the target first module controller connected adjacent to the first data interface; receiving at least one second type broadcast packet input from the first data interface; wherein the at least one second type broadcast packet input from the first data interface includes current identification information of a plurality of data interfaces of a corresponding one of the at least one first module controller; identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface to obtain a first module controller identification group; receiving a first type broadcast packet input from the second data interface; parsing the first type broadcast packet input from the second data interface to obtain initial identification information of a second target data interface in a target second module controller, wherein the target second module controller is one of the at least one second module controller connected adjacent to the second data interface, and the second target data interface is one of a plurality of data interfaces of the target second module controller connected adjacent to the second data interface; receiving at least one second type broadcast packet input from the second data interface; wherein the at least one second type broadcast packet input from the second data interface includes current identification information of a plurality of data interfaces of a corresponding one of the at least one second module controller; identifying the at least one second module controller according to the initial identification information of the second target data interface and the at least one second type broadcast packet input from the second data interface to obtain a second module controller identification group; the method comprises the steps of storing a first module controller identification group and a second module controller identification group, sending a data reading instruction to an upper computer, reading the first module controller identification group and the second module controller identification group by the upper computer in response to the data reading instruction, processing the first module controller identification group and the second module controller identification group respectively 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 and a second data interface in response to the processed first module controller identification group and the processed second module controller identification group being the same, and displaying a loop relation between the first data interface and the second data interface.

In the prior art, which two network ports on a sending card in an LED display screen control system form a main loop and a standby loop cannot be actively detected, so that a lot of inconvenience is brought to field debugging personnel. The network port loop detection method disclosed in this embodiment includes that a system controller respectively receives a first type broadcast packet and a second type broadcast packet corresponding to each other through a first data interface and a second data interface, respectively parses the first type broadcast packet and the second type broadcast packet input from the first data interface and parses the first type broadcast packet and the second type broadcast packet input from the second data interface, obtains a first module controller identification group and a second module controller identification group according to contents in the broadcast packets, and sends a data reading instruction to an upper computer, and the upper computer processes the two sets of module controller identifications and then determines that the first data interface and the second data interface form a loop and displays a loop relation in response to the processed two sets of module controller identifications being the same, thereby realizing automatic detection of a network port loop relation of the system controller and simplifying a debugging process of the system, save debugging time, bring the facility for the field debugging personnel, improve work efficiency for the system is more intelligent and nimble, and the user can see the loop relation between the net gape directly perceivedly from the host computer, improves user experience.

In another aspect, an internet access loop detection method provided in an embodiment of the present invention is applicable to a single system controller, and a first data interface of the system controller is electrically connected to a first-stage module controller in a plurality of module controllers, and a second data interface of the system controller is electrically connected to a last-stage module controller in the plurality of module controllers, and the internet access loop detection method includes: outputting a data broadcast packet through the first data interface, so that each module controller receives the data broadcast packet and transmits the data broadcast packet through; wherein the data broadcast packet includes a physical address of the first data interface; receiving the data broadcast packet input from the second data interface; analyzing the data broadcast packet input from the second data interface to obtain a physical address of the first data interface; determining that a loop exists between the second data interface and the first data interface in response to the physical address of the first data interface and the physical address of the second data interface being different; and sending a loop relation instruction of a loop existing between the first data interface and the second data interface to an upper computer, and displaying the loop relation between the first data interface and the second data interface by the upper computer in response to the loop relation instruction.

In the prior art, which two network ports on a sending card in an LED display screen control system form a main loop and a standby loop cannot be actively detected, so that a lot of inconvenience is brought to field debugging personnel. The network port loop detection method disclosed in this embodiment outputs a data broadcast packet to a plurality of module controllers through a first data interface, and receiving an incoming data broadcast packet from the second data interface and parsing the incoming data broadcast packet to obtain the physical address of the first data interface, in response to the physical address of the first data interface and the physical address of the second data interface being different, thereby determining that the first data interface and the second data interface have loops and sending a loop relation instruction to the upper computer to display the loop relation by the upper computer, realizing the automatic detection of the loop relation between the network ports of the system controller, simplifying the debugging process of the system, saving the debugging time, bringing convenience to field debugging personnel, improving the working efficiency, the system is more intelligent and flexible, a user can visually see the loop relation between the network ports from the upper computer, and the user experience is improved.

As can be seen from the above, the above technical features of the present invention may have one or more of the following advantages: the realization can the loop relation between the net gape of automated inspection system controller, simplifies the debugging flow of system, saves the debugging time, offers convenience for the field debugging personnel, improves work efficiency for the system is more intelligent and nimble, and the user can see the loop relation between the net gape from the host computer directly perceivedly, improves user experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an internet access loop detection system according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an initial state and a post-training state of a plurality of module controllers electrically connected between two data interfaces, in accordance with an embodiment of the present invention.

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a system 10 for detecting a portal loop, including: a system controller 11 and a plurality of module controllers 121 and 124. Of course the invention is not limited to the number of module controllers. The system controller 11 includes a first data interface 111 and a second data interface 112, a first stage module controller 121 of the plurality of module controllers is electrically connected to the first data interface 111 of the system controller 11, a last stage module controller 124 of the plurality of module controllers is electrically connected to the second data interface 112 of the system controller 11, and the module controllers 121 and 124 are cascaded with each other. It should be noted that the system controller 11 is not limited to the two data interfaces shown in fig. 1, and may include more data interfaces, and each data interface may be connected to a different number of module controllers, and even a certain data interface or certain data interfaces may not be connected to a module controller; the system controller 11 is, for example, a sending card in the LED display screen control system, and each of the module controllers 121 and 124 is, for example, a receiving card (or scanning card) in the LED display screen control system.

The system controller 11 is configured to receive and parse a broadcast packet input from the first data interface 111 to obtain a first module controller identification group corresponding to at least one first module controller electrically connected to the first data interface 111; receiving and parsing a broadcast packet input from the second data interface 112 to obtain a second module controller identification group corresponding to at least one second module controller electrically connected to the second data interface 112; processing the first module controller identification group and the second module controller identification group respectively to obtain a processed first module controller identification group and a processed second module controller identification group; and determining that a loop exists in the first data interface 111 and the second data interface 112 in response to the processed first module controller identification set being the same as the processed second module controller identification set.

As described above, the system controller 11 of the present embodiment is configured to identify the first type broadcast packet and the second type broadcast packet that are broadcast by the module controller 121 and 124 and input through its own data interface. The respective module controllers 121 and 124 transmit the first type broadcast packet and the second type broadcast packet to each other, in order to make the representation more visual, the first type broadcast packet is referred to as a node discovery packet, and the second type broadcast packet is referred to as a training packet. The module controllers respectively identify the connection relationship between the adjacent module controllers, the node broadcast packet is only transmitted between the adjacent module controllers, the adjacent topological relationship of the module controllers is recorded in the training packet, the training packet is sent to the system controller 11 through the first data interface 111 and the second data interface 112, so that the system controller 11 receives the input node discovery packet and the training packet from each data interface to identify the module controllers carried by each data interface, and learns the module controller identification group corresponding to each data interface, thereby judging the loop relationship between the data interfaces.

Specifically, each of the module controllers, e.g., the module controller 121 and 124, is for example configured to: generating a plurality of corresponding first type broadcast packets according to initial identification information of each of a plurality of data interfaces, such as a data interface a and a data interface B, wherein each first type broadcast packet contains the initial identification information of the corresponding data interface, and the initial identification information of each data interface includes an identification of the module controller and an identification of the data interface; the identification of the mentioned module controller is for example a MAC address; respectively transmitting the first type broadcast packets to the data interfaces for outputting; 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 first type broadcast packet is input to a certain data interface of the plurality of data interfaces, 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 first type broadcast packet is not input into a certain data interface of the plurality of data interfaces, 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 system controller 11 receives and parses the broadcast packet input from the first data interface 111 to obtain a first module controller identification group corresponding to at least one first module controller electrically connected to the first data interface 111, for example, including: receiving a first type broadcast packet input from the first data interface 111; parsing the first type broadcast packet input from the first data interface 111 to obtain initial identification information of a first target data interface in a target first module controller; wherein the target first module controller is one of the at least one first module controller connected adjacent to the first data interface 111, and the first target data interface is one of the plurality of data interfaces of the target first module controller connected adjacent to the first data interface 111; receiving at least one second type broadcast packet input from the first data interface 111; wherein the at least one second type broadcast packet input from the first data interface 111 includes current identification information of a plurality of data interfaces of a corresponding one of the at least one first module controllers; identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface 111 to obtain a first module controller identification group. The receiving and parsing, by the system controller 11, the broadcast packet input from the second data interface to obtain a second module controller identification group corresponding to the at least one second module controller electrically connected to the second data interface includes, for example: receiving a first type broadcast packet input from the second data interface 112; parsing the first type broadcast packet input from the second data interface 112 to obtain initial identification information of a second target data interface in a target second module controller; wherein the target second module controller is one of the at least one second module controller connected adjacent to the second data interface 112, and the second target data interface is one of the plurality of data interfaces of the target second module controller connected adjacent to the second data interface 112; receiving at least one second type broadcast packet input from the second data interface 112; wherein the at least one second type broadcast packet input from the second data interface 112 includes current identification information of a plurality of data interfaces of a corresponding one of the at least one second module controllers; identifying the at least one second module controller according to the initial identification information of the second target data interface and the at least one second type broadcast packet input from the second data interface 112 to obtain a second module controller identification group. Wherein said initial identification information of said first target data interface mentioned comprises for example an identification of said target first module controller and an identification of said first target data interface. Said initial identification information of the mentioned second target data interface comprises for example an identification of said target second module controller and an identification of said second target data interface. Wherein the identification of the target first group controller is, for example, the MAC address or other unique identification of the target first group controller, and the identification of the target second group controller is, for example, the MAC address or other unique identification of the target second group controller.

The last three bytes of the destination MAC address field of the first type broadcast packet are, for example, 0xFFFFFF, but the embodiment is not limited thereto. The six bytes of the destination MAC address field of the second-type broadcast packet mentioned are 0 xFFFFFFFFFFFF. Therefore, the first type broadcast packet can not be transmitted to the cascaded device in a transparent mode, and the second type broadcast packet can be transmitted to the cascaded device in a transparent mode.

Further, the aforementioned identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface 111 to obtain a first module controller group identification includes, for example: parsing each second type broadcast packet input from the first data interface 111 to obtain current identification information of each of a plurality of data interfaces of a first 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 the first module controller contained in the current identification information of another data interface of the first module controller where the data interface is located is the identification of a next-stage first module controller of the target first module controller; when the identifier of the first module controller included in the current identifier information of a certain data interface is the same as the identifier of the target first module controller included in the initial identifier information of the first target data interface, but the identifier of the included data interface is different from the identifier of the first target data interface included in the initial identifier information of the first target data interface, determining that the identifier of the first module controller included in the current identifier information of another data interface of the first module controller where the data interface is located is the identifier of a second-level first module controller of the target first module controller. In this way, the module controller carried by the first data interface 111 can be quickly identified.

Further, the mentioned identifying the at least one first module controller to obtain a first module controller identification group according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface further comprises, for example: learning the identification of the target first module controller, the identification of the next-stage first module controller, and the identification of the next-stage first module controller to obtain the first module controller identification group. The system controller 11 facilitates determining a loop relationship between the data interfaces according to the set of module controller identifications by learning the identifications of the plurality of module controllers 11 on-board.

The aforementioned processing the first module controller identification group and the second module controller identification group respectively to obtain the processed first module controller identification group and the processed second module controller identification group includes, for example: and adjusting the ordering of the identifiers corresponding to the at least one first module controller included in the first module controller identifier group and the ordering of the identifiers corresponding to the at least one second module controller included in the second module controller identifier group according to a unified rule, so as to obtain the processed first module controller identifier group and the processed second module controller identifier group. Therefore, the relationship between the module controller identification groups can be rapidly judged.

Further, the system controller 11 is further configured to send a loop relation instruction that a loop exists between the first data interface 111 and the second data interface 112 to the upper computer, so that the upper computer displays a loop relation between the first data interface and the second data interface in response to the loop relation instruction. The loop relation is displayed through the upper computer, so that a user can know the loop relation of the system controller 11 conveniently, the operation is more intuitive, and the user experience is improved.

For ease of understanding, the portal loop detection method performed by the portal loop detection system 10 is described below with reference to fig. 2 and 3. The first data interface 111 and the second data interface 112 of the system controller 11 are, for example, a tape carrier port M and a tape carrier port N. The plurality of data interfaces of the module controller are, for example, two network ports a and B. A plurality of, for example, four module controllers Rm1-Rm2 and Rn1-Rn2 are electrically connected between the load port M and the load port N of the system controller.

As shown in fig. 2, the operation modes of the power-on initialization of the four module controllers are: each module controller sends a node discovery packet and a training packet from a network port a and a network port B respectively, three bytes after a destination MAC address field in the node discovery packet are, for example, 0xfffffff, the contents in the node discovery packet carry the identifier of the corresponding module controller and the identifier of the network port, the training packet sends current identification information after the network port a and the network port B are trained, and six bytes in the destination MAC address field in the training packet are, for example, 0 xfffffffff.

More specifically, the initial identification information of port a and port B of the module controller Rm1 is (Rm1, a) and (Rm1, B), respectively, and the current identification information after training is (Rm1, a) and (Rm2, a), respectively; the initial identification information of the network port A and the network port B of the module controller Rm2 are (Rm2, A) and (Rm2, B), respectively, and the current identification information after training is (Rm1, B) and (Rn2, B), respectively; the initial identification information of the network port a and the network port B of the module controller Rn2 are (Rn2, a) and (Rn2, B), respectively, and the current identification information after training is (Rn1, B) and (Rm2, B), respectively; the initial identification information of the network port a and the network port B of the module controller Rn1 are (Rn1, a) and (Rn1, B), respectively, and the current identification information after training is (Rn1, a) and (Rn2, a), respectively. Here, the module controller Rm1 is a target module controller adjacently connected to the on-load port M of the system controller, and the port a of the module controller Rm1 is a target data interface adjacently connected to the on-load port M of the system controller; similarly, the module controller Rn1 is a target module controller connected adjacent to the on-load port N of the system controller, and the port a of the module controller Rn1 is a target data interface connected adjacent to the on-load port N of the system controller. An internet port a and an internet port B of the module controller Rm1 output a node discovery packet containing initial identification information (Rm1, a) and a node discovery packet containing initial identification information (Rm1, B), respectively, an internet port a and an internet port B of the module controller Rm2 output a node discovery packet containing initial identification information (Rm2, a) and a node discovery packet containing initial identification information (Rm2, B), respectively, an internet port a and an internet port B of the module controller Rn2 output a node discovery packet containing initial identification information (Rn2, a) and a node discovery packet containing initial identification information (Rn2, B), respectively, an internet port a and an internet port B of the module controller Rn1 output a node discovery packet containing initial identification information (Rn1, a) and a node discovery packet containing initial identification information (Rn1, B), respectively; network port a and network port B of module controller Rm1 each output a training packet containing current identification information (Rm1, a) and (Rm2, a), network port a and network port B of module controller Rm2 each output a training packet containing current identification information (Rm1, B) and (Rn2, B), network port a and network port B of module controller Rn2 each output a training packet containing current identification information (Rn1, B) and (Rm2, B), and network port a and network port B of module controller Rn1 each output a training packet containing current identification information (Rn1, a) and (Rn2, a).

As described above, the node discovery packet including the initial identification information (Rm1, a) sent from the port a of the module controller Rm1 is input from the on-load port M to the system controller, and the system controller analyzes the node discovery packet to identify the initial identification information (Rm1, a) corresponding to the port a of the target module controller (i.e., the first-level module controller under the on-load port M). Then, the system controller receives four training packets from the load port M, that is, the training packet generated by the module controller Rm1 and containing the current identification information (Rm1, a) and (Rm2, a), the training packet generated by the module controller Rm2 and containing the current identification information (Rm1, B) and (Rn2, B), the training packet generated by the module controller Rn2 and containing the current identification information (Rn1, B) and (Rm2, B), and the training packet generated by the module controller Rn1 and containing the current identification information (Rn1, a) and (Rn2, a), and analyzes them respectively.

When the training packet including the current id information (Rm1, a) and (Rm2, a) is parsed, it is found that (Rm1, a) of the parsed current id information (Rm1, a) and (Rm2, a) is the same as the recognized initial id information (Rm1, a), and then the last level module controller Rm2 of the module Rm1 is determined according to the parsed current id information (Rm1, a) and (Rm2, a) of the (Rm2, a).

When parsing the training packet including the current identification information (Rm1, B) and (Rn2, B), it is found that the identification (Rm1) of one module controller in the parsed current identification information (Rm1, B) and (Rn2, B) is the same as the identification (Rm1) of the previously recognized initial identification information (Rm1, A), but the identification (B) of the gateway corresponding to the identification (Rm1) is different from the identification (A) of the gateway in the previously recognized initial identification information (Rm1, A), and also finds that the identity (Rn2) of the other one of the parsed current identity information (Rm1, B) and (Rn2, B) is different from the identity of the previously determined module controller Rm2, then the next-level module controller Rn2 of the module controller Rm1 can be determined according to the analyzed current identification information (Rm1, B) and (Rn2, B) in (Rn2, B).

When the training packet including the current id information (Rn1, B) and (Rm2, B) is parsed, it is found that the identifier (Rm2) of one of the parsed current id information (Rn1, B) and (Rm2, B) is the same as the identifier of the determined module controller Rm2, but the identifier (Rn1) of the other module controller is different from the identifier of the determined module controller Rn2, and then the last module controller Rn1 of the module controller Rm1 is determined according to the parsed current id information (Rn1, B) and (Rn1, B) of the (Rm2, B).

When parsing the training packet including the current id information (Rn1, a) and (Rn2, a), it is found that the ids (Rn1) and (Rn2) of the two module controllers in the parsed current id information (Rn1, a) and (Rn2, a) are the same as the determined ids of the module controller Rn1 and the module controller Rn2, respectively, and it is determined that the module controller Rn1 is the last stage module controller. Therefore, each module controller Rm1-Rm2 and Rn1-Rn2 under the loading net port M of the system controller can be identified, and the first module controller identification group corresponding to the module controllers Rm1-Rm2 and Rn1-Rn2 is obtained through learning { Rm1, Rm2, Rn2 and Rn1 }. In short, the system controller 11 of this embodiment first identifies the node discovery broadcast packet to synchronously identify the first-level module controller Rm1 and the identifier a of the connected port M, and then identifies the following module controllers Rm2 and Rn1-Rn2 through four training packets, so that the first module controller identifier group corresponding to the module controllers Rm1-Rm2 and Rn1-Rn2 is { Rm1, Rm2, Rn2, Rn1 }.

Similarly, the system controller of this embodiment identifies each of the module controllers Rm1-Rm2 and Rn1-Rn2 under the on-load gateway N of the system controller, so as to learn the second module controller identifier group { Rn1, Rn2, Rm2, Rm1} corresponding to the module controllers Rm1-Rm2 and Rn1-Rn 2.

The system controller may then adjust the rankings of the identifiers in the first group of module controller identifiers { Rm1, Rm2, Rn2, Rn1} and the rankings of the identifiers in the second group of module controller identifiers { Rn1, Rn2, Rm2, Rm1} in order of, for example, small to large, according to a unified rule. For example, the identities Rm1 of the module controllers are smaller than Rm2 is smaller than Rn2 is smaller than Rn1, so the two resulting post-processing module controller identity groups are: { Rm1, Rm2, Rn2, Rn1} and { Rm1, Rm2, Rn2, Rn1 }.

When the system controller 11 detects that the module controller identifier groups corresponding to the on-load port M and the on-load port N are the same, it may be determined that a loop exists in the on-load port M and the on-load port N.

Further, the system controller is also connected with an upper computer, and the system controller sends a loop relation instruction of a loop existing between the loaded net port M and the loaded net port N to the upper computer. As shown in fig. 3, the upper computer responds to the loop relation instruction to display the loop relation between the loaded network port M and the loaded network port N, that is, the loaded network ports having the loop relation are displayed by wire connection.

In other embodiments of the present invention, after learning the two sets of identifier of the module controller, i.e. after learning the first set of identifier of the module controller { Rm1, Rm2, Rn2, Rn1} and the second set of identifier of the module controller { Rn1, Rn2, Rm2, Rm1}, the system controller may directly save the two sets of identifier of the module controller, i.e. the system controller saves the first set of identifier of the module controller { Rm1, Rm2, Rn2, Rn1} and the second set of identifier of the module controller { Rn1, Rn2, Rm2, Rm1}, and sends a data reading instruction to the host computer, and the host computer reads the first set of identifier of the module controller and the second set of identifier of the module controller in response to the data reading instruction, and processes the first set of identifier of the module controller and the second set of the module controller to obtain the second set of identifier of the module controller, and responding to the processed first module controller identification group and the processed second module controller identification group to determine that a loop exists between the loaded network port M and the loaded network port N, and displaying the loop relation between the loaded network port M and the loaded network port N. In short, after the system controller obtains the two module controller identification groups, the upper computer processes the two module controller identification groups, for example, performs the aforementioned sorting according to the unified rule, and determines whether the two processed module controller identification groups are the same, thereby determining that a loop exists in the loaded gateway a and the loaded gateway B, and displaying a loop relationship.

In addition, in other embodiments of the present invention, the system controller 11 in the network port loop detection system 10 may also implement automatic detection of the loop relationship between network ports by sending data broadcast packets to the module controller 121 and 124.

The mentioned data broadcast packet is, for example, a field packet in an image data packet, and since the module controller can bidirectionally transmit the broadcast packet between two data interfaces, the data interfaces having a loop relationship in the system controller 11 can receive the broadcast packet output by the other party, so that the MAC address of the broadcast packet can be determined to be different from that of the broadcast packet by analyzing the broadcast packet, and the loop relationship between the two data interfaces can be determined.

Specifically, the system controller 11 outputs the data broadcast packet via the first data interface 111, so that each module controller, such as the module controller 121 and 124, receives the data broadcast packet and transmits it through, for example, the data interface a of the module controller 121 receives the data broadcast packet output by the first data interface 111 of the system controller and outputs the data broadcast packet to the data interface a of the module controller 122 from the data interface B, the module controller 122 receives the data broadcast packet from the data interface a and outputs the data broadcast packet to the data interface B of the module controller 123 through the data interface B, the module controller 123 receives the data broadcast packet from the data interface B and outputs the data broadcast packet to the data interface B of the module controller 124 through the data interface a, and the module controller 124 receives the data broadcast packet from the data interface B and outputs the data broadcast packet to the second data interface 112 of the system controller 11 through the data interface a; wherein the data broadcast packet includes a physical address of the first data interface 111, such as a MAC address; receiving the data broadcast packet input from the second data interface 112; parsing the data broadcasting packet input from the second data interface 112 to obtain a physical address of the first data interface 111; determining that a loop exists between the second data interface 112 and the first data interface 111 in response to the physical address of the first data interface 111 and the physical address of the second data interface 112 being different; and sending a loop relation instruction of a loop existing between the first data interface 111 and the second data interface 112 to an upper computer, so that the upper computer responds to the loop relation instruction to display the loop relation between the first data interface 111 and the second data interface 112.

In summary, the system controller 11 according to the foregoing embodiment of the present invention can automatically detect the loop relationship between the network ports, simplify the debugging process of the system, save the debugging time, bring convenience to field debugging personnel, improve the work efficiency, make the system more intelligent and flexible, and enable the user to visually see the loop relationship between the network ports in the system controller from the upper computer, thereby improving the user experience. It should be noted that the data interfaces of the system controller 11 and/or the data interfaces of the module controllers may be replaced by other data interfaces.

In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and/or method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units/modules is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units/modules described as separate parts may or may not be physically separate, and parts displayed as units/modules may or may not be physical 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 solution of the present embodiment.

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

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

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (11)

1. A network port loop detection method is suitable for a single system controller, a first data interface of the system controller is electrically connected with at least one first module controller, a second data interface of the system controller is electrically connected with at least one second module controller, and the network port loop detection method is characterized by comprising the following steps:

receiving and analyzing a broadcast packet input from the first data interface to obtain a first module controller identification group corresponding to the at least one first module controller electrically connected with the first data interface;

receiving and analyzing a broadcast packet input from the second data interface to obtain a second module controller identification group corresponding to the at least one second module controller electrically connected with the second data interface;

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

determining that a loop exists between the first data interface and the second data interface in response to the processed first module controller identification group being the same as the processed second module controller identification group.

2. The method according to claim 1, wherein the receiving and parsing the broadcast packet input from the first data interface to obtain a first module controller identifier group corresponding to the at least one first module controller electrically connected to the first data interface comprises:

receiving a 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 target first module controller; wherein the target first module controller is one of the at least one first module controller connected adjacent to the first data interface, and the first target data interface is one of a plurality of data interfaces of the target first module controller connected adjacent to the first data interface;

receiving at least one second type broadcast packet input from the first data interface; wherein the at least one second type broadcast packet input from the first data interface includes current identification information of a plurality of data interfaces of a corresponding one of the at least one first module controller;

identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface to obtain the first module controller identification group;

the receiving and analyzing the broadcast packet input from the second data interface to obtain a second module controller identification group corresponding to the at least one second module controller electrically connected to the second data interface includes:

receiving a 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 target second module controller; wherein the target second module controller is one of the at least one second module controller connected adjacent to the second data interface, and the second target data interface is one of a plurality of data interfaces of the target second module controller connected adjacent to the second data interface;

receiving at least one second type broadcast packet input from the second data interface; wherein the at least one second type broadcast packet input from the second data interface includes current identification information of a plurality of data interfaces of a corresponding one of the at least one second module controller;

identifying the at least one second module controller according to the initial identification information of the second target data interface and the at least one second type broadcast packet input from the second data interface to obtain the second module controller identification group.

3. The method according to claim 2, wherein the initial identification information of the first target data interface comprises an identification of the target first 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 target second module controller and an identification of the second target data interface; wherein the identification of the target first group controller is the MAC address of the target first group controller and the identification of the target second group controller is the MAC address of the target second group controller.

4. The method of claim 2, wherein 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 xFFFFFFFFFFFF.

5. The method of claim 3, wherein the identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface to obtain a first module controller identification group comprises:

analyzing each second type broadcast packet input from the first data interface to obtain the current identification information of each of a plurality of data interfaces of a first 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 the first module controller contained in the current identification information of another data interface of the first module controller where the data interface is located is the identification of a next-stage first module controller of the target first module controller;

when the identifier of the first module controller included in the current identifier information of a certain data interface is the same as the identifier of the target first module controller included in the initial identifier information of the first target data interface, but the identifier of the included data interface is different from the identifier of the first target data interface included in the initial identifier information of the first target data interface, determining that the identifier of the first module controller included in the current identifier information of another data interface of the first module controller where the data interface is located is the identifier of a second-level first module controller of the target first module controller.

6. The method of claim 5, wherein the identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface to obtain a first module controller identification group, further comprises:

learning the identification of the target first module controller, the identification of the next-stage first module controller, and the identification of the next-stage first module controller to obtain the first module controller identification group.

7. The method according to claim 2, wherein the processing the first group controller identifier group and the second group controller identifier group respectively to obtain a processed first group controller identifier group and a processed second group controller identifier group comprises:

and adjusting the ordering of the identifiers corresponding to the at least one first module controller included in the first module controller identifier group and the ordering of the identifiers corresponding to the at least one second module controller included in the second module controller identifier group according to a unified rule, so as to obtain the processed first module controller identifier group and the processed second module controller identifier group.

8. The method according to claim 2, wherein after determining that a loop exists between the first data interface and the second data interface in response to the processed first group controller identification set and the processed second group controller identification set being the same, further comprising:

and sending a loop relation instruction of the first data interface and the second data interface with loops to an upper computer, and displaying the loop relation between the first data interface and the second data interface by the upper computer in response to the loop relation instruction.

9. An internet access loop detection system, comprising:

a system controller including a first data interface and a second data interface;

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

wherein each of the module controllers has a plurality of data interfaces and is configured to:

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

respectively transmitting the first type broadcast packets to the data interfaces for outputting; and

generating a second type broadcast packet containing the current identification information of the multiple data interfaces according to the current identification information of the multiple data interfaces, specifically comprising:

when a first type broadcast packet is input to a certain data interface of the plurality of data interfaces, 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 first type broadcast packet is not input into a certain data interface of the plurality of data interfaces, 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 outbound output;

wherein the system controller is configured to receive the first type broadcast packet and the plurality of second type broadcast packets input from the first data interface and the second data interface, respectively, and perform the portal loop detection method according to any one of claims 1 to 8.

10. A network port loop detection method is suitable for a single system controller, a first data interface of the system controller is electrically connected with at least one first module controller, a second data interface of the system controller is electrically connected with at least one second module controller, and the network port loop detection method is characterized by comprising the following steps:

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

parsing the first type broadcast packet input from the first data interface to obtain initial identification information of a first target data interface in a target first module controller, wherein the target first module controller is one of the at least one first module controller connected adjacent to the first data interface, and the first target data interface is one of a plurality of data interfaces of the target first module controller connected adjacent to the first data interface;

receiving at least one second type broadcast packet input from the first data interface; wherein the at least one second type broadcast packet input from the first data interface includes current identification information of a plurality of data interfaces of a corresponding one of the at least one first module controller;

identifying the at least one first module controller according to the initial identification information of the first target data interface and the at least one second type broadcast packet input from the first data interface to obtain a first module controller identification group;

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

parsing the first type broadcast packet input from the second data interface to obtain initial identification information of a second target data interface in a target second module controller, wherein the target second module controller is one of the at least one second module controller connected adjacent to the second data interface, and the second target data interface is one of a plurality of data interfaces of the target second module controller connected adjacent to the second data interface;

receiving at least one second type broadcast packet input from the second data interface; wherein the at least one second type broadcast packet input from the second data interface includes current identification information of a plurality of data interfaces of a corresponding one of the at least one second module controller;

identifying the at least one second module controller according to the initial identification information of the second target data interface and the at least one second type broadcast packet input from the second data interface to obtain a second module controller identification group;

the method comprises the steps of storing a first module controller identification group and a second module controller identification group, sending a data reading instruction to an upper computer, reading the first module controller identification group and the second module controller identification group by the upper computer in response to the data reading instruction, processing the first module controller identification group and the second module controller identification group respectively 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 and a second data interface in response to the processed first module controller identification group and the processed second module controller identification group being the same, and displaying a loop relation between the first data interface and the second data interface.

11. A network interface loop detection method is suitable for a single system controller, a first data interface of the system controller is electrically connected with a first-stage module controller in a plurality of module controllers, and a second data interface of the system controller is electrically connected with a last-stage module controller in the plurality of module controllers, and is characterized by comprising the following steps:

outputting a data broadcast packet through the first data interface, so that each module controller receives the data broadcast packet and transmits the data broadcast packet through; wherein the data broadcast packet includes a physical address of the first data interface;

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

analyzing the data broadcast packet input from the second data interface to obtain a physical address of the first data interface;

determining that a loop exists between the second data interface and the first data interface in response to the physical address of the first data interface and the physical address of the second data interface being different; and

and sending a loop relation instruction of the first data interface and the second data interface with loops to an upper computer, and displaying the loop relation between the first data interface and the second data interface by the upper computer in response to the loop relation instruction.

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