WO2022217786A1

WO2022217786A1 - Cross-network communicaton method, apparatus, and system for multi-bus network, and storage medium

Info

Publication number: WO2022217786A1
Application number: PCT/CN2021/109500
Authority: WO
Inventors: 李龙威; 葛鹏; 陈彬; 李全磊; 赵金强; 张凯
Original assignee: 北京国科天迅科技有限公司
Priority date: 2021-04-13
Filing date: 2021-07-30
Publication date: 2022-10-20
Also published as: CN112803998B; CN112803998A

Abstract

The present application relates to a cross-network communication method, apparatus, and system for a multi-bus network, a computer device, and a storage medium. The method is applied to the cross-network communication system for the multi-bus network. The cross-network communication system for the multi-bus network comprises a network bridge and a PON network. The network bridge comprises an OLT port. The OLT port comprises a first OLT port and a second OLT port. The PON network comprises a first PON network and a second PON network. The first PON network corresponds to the first OLT port, and the second PON network corresponds to the second OLT port. The method comprises: receiving a data frame by means of the first OLT port in the network bridge, and broadcasting the data frame to the first PON network; detecting whether the data frame needs to be transmitted to the second PON network, and if so, broadcasting the data frame to the second PON network by means of the second OLT port in the network bridge. Therefore, data transmission conflicts between networks can be avoided, thereby achieving interconnected communication between multiple PON networks.

Description

Multi-bus network cross-network communication method, apparatus, system, device and storage medium

Related applications

This application claims the priority of the Chinese patent application filed on April 13, 2021, the application number is 202110392282.4, and the title is "Multi-bus network cross-network communication method, device, system, equipment and storage medium", the full text of which is hereby incorporated Incorporated by reference.

technical field

The present application relates to the field of communication technologies, and in particular, to a method, apparatus, system, device and storage medium for cross-network communication in a multi-bus network.

Background technique

With the development of communication technology, optical network communication technology has emerged. Passive Optical Network (PON, Passive Optical Network) in optical network communication technology does not contain any electronic devices and electronic power supplies, which can avoid electromagnetic interference and lightning effects of external equipment. , reduce the failure rate of lines and external equipment, and improve system reliability. A typical PON network includes an OLT optical module and multiple ONU modules, and uses a bus, the downlink adopts the form of broadcast, and the uplink adopts the form of time division multiplexing to realize network communication.

However, in a typical PON network down-broadcast mode, when multiple PON networks are required to communicate with each other, data transmission conflicts between the networks will occur, and the interconnection and communication of multiple PON networks cannot be realized.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a multi-bus network cross-network communication method, device, system, computer equipment and storage medium capable of realizing interconnection and communication of multiple PON networks in response to the above technical problems.

A multi-bus network cross-network communication method, the method is applied to a multi-bus network cross-network communication system, the multi-bus network cross-network communication system includes a bridge and a PON network, wherein the bridge includes an OLT port, and the The OLT port includes a first OLT port and a second OLT port, the PON network includes a first PON network and a second PON network, the first PON network corresponds to the first OLT port, and the second PON network Corresponding to the second OLT port; the method includes:

Receive data frames through the first OLT port in the bridge, and broadcast the data frames to the first PON network;

Detecting whether the data frame needs to be transmitted to the second PON network, and if necessary, broadcasting the data frame to the second PON network through the second OLT port in the bridge.

In one embodiment, the method further includes:

Through the ONU unit of the NC equipment in the PON network, the network link status of the OLT port in the PON network and the bridge is detected;

When the network link state is disconnected for a continuous preset number of operating cycles, the ONU port corresponding to the ONU unit of the NC device is disabled, and the connection port of the PON network is replaced by the network The OLT port in the bridge is switched to the standby OLT port of the NC device.

In one embodiment, before the detecting whether the data frame needs to be transmitted to the second PON network includes:

Time synchronization is performed on the NC devices in the first PON network and the second PON network;

According to the time synchronization result, a message configuration is performed on the NC device, and when the NC device in the first PON network sends a message to the NT device in the second PON network within a preset time period, the preset time period A null message is configured for the NC device in the second PON network.

In one of the embodiments, broadcasting the data frame to the second PON network through the second OLT port in the bridge includes:

forwarding the data frame received by the first OLT port to the second OLT port through the bridge;

The data frame is broadcast to the second PON network through the second OLT port.

A multi-bus network cross-network communication device, the device is applied to a multi-bus network cross-network communication system, the multi-bus network cross-network communication system includes a bridge and a PON network, wherein the bridge includes an OLT port, and the The OLT port includes a first OLT port and a second OLT port, the PON network includes a first PON network and a second PON network, the first PON network corresponds to the first OLT port, and the second PON network Corresponding to the second OLT port; the device includes:

a single network transmission module, configured to receive data frames through the first OLT port in the bridge, and broadcast the data frames to the first PON network;

A cross-network transmission module is used to detect whether the data frame needs to be transmitted to the second PON network, and if necessary, broadcast the data frame to the second OLT port in the bridge Two PON networks.

A multi-bus network cross-network communication system, the system comprising:

a network bridge, the network bridge includes an OLT port, and the OLT port includes a first OLT port and a second OLT port;

PON network, the PON network includes a first PON network and a second PON network; the first OLT port is connected to the first PON network through an optical splitter, and the second OLT port is connected to the second PON through an optical splitter network;

The bridge is configured to receive data frames through the first OLT port, broadcast the data frames to the first PON network, and detect whether the data frames need to be transmitted to the second PON network, if necessary , the data frame is broadcast to the second PON network through the second OLT port in the bridge.

In one of the embodiments, the NC device in the PON network corresponds to a spare OLT port, and the spare OLT port is connected to the corresponding PON network through the optical splitter; the NC device is used when the network link The PON network is connected through the standby OLT port when the state is in the disconnected state for a continuous preset number of operation cycles.

In one embodiment, the NC device corresponds to one ONU port, and the standby OLT port is connected to the ONU port of the NC device through the optical splitter.

A computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of any of the methods described above when the processor executes the computer program.

A computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of any of the methods described above.

The above-mentioned multi-bus network cross-network communication method, device, system, computer equipment and storage medium receive data frames through the first OLT port in the bridge, broadcast the data frames to the first PON network, and detect that the data frames need to be sent When transmitting to the second PON network, the data frame is broadcast to the second PON network through the second OLT port, so that data transmission conflicts between networks can be avoided and interconnected communication of multiple PON networks can be realized.

Description of drawings

FIG. 1 is a schematic structural diagram of a multi-bus network cross-network communication system according to an embodiment of the present application.

FIG. 2 is a schematic flowchart of a multi-bus network cross-network communication method according to an embodiment of the present application.

FIG. 3 is a schematic flowchart of an off-grid communication method in an embodiment of the present application.

FIG. 4 is a schematic flowchart of message configuration in an embodiment of the present application.

FIG. 5 is a schematic flowchart of time synchronization in an embodiment of the present application.

FIG. 6 is a schematic flowchart of message arrangement in an embodiment of the present application.

FIG. 7 is a schematic flowchart of a possible implementation manner of step S300 according to an embodiment of the present application.

FIG. 8 is a structural block diagram of a multi-bus network cross-network communication device according to an embodiment of the present application.

FIG. 9 is an internal structure diagram of a computer device in an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances, and may even be singular, so that the embodiments of the application described herein can be implemented in sequences other than those illustrated or described herein. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

In one embodiment, as shown in FIG. 1, a multi-bus network cross-network communication system is provided, which specifically includes:

PON network, the PON network includes a first PON network and a second PON network; the first OLT port is connected to the first PON network through an optical splitter, and the second OLT port is connected to the second PON network through an optical splitter;

The bridge is used to receive the data frame through the first OLT port and broadcast the data frame to the first PON network. The bridge detects whether the data frame needs to be transmitted to the second PON network. The OLT port broadcasts the data frame to the second PON network.

Specifically, as shown in FIG. 1 , the multi-bus network cross-network communication system includes a network bridge, and a plurality of PON networks connected to the network bridge. Among them, a plurality of OLT (Optical Line Terminal) ports connected to the PON network are provided in the bridge, and the OLT ports in the bridge communicate with the NC (Network Controller, network) in the corresponding PON network through the optical splitter The ONU (Optical Network Unit, optical network unit) port of the controller) device is connected to realize the connection between the bridge and the PON network. The multi-bus network cross-network communication system receives data frames through the first OLT port, broadcasts the data frames to the first PON network, and transmits the data frames to the second PON network through the second OLT port in the bridge when the data frame needs to be transmitted to the second PON network. , broadcast the data frame to the second PON network.

In some embodiments, the NC device in the PON network corresponds to a spare OLT port, and the spare OLT port is connected to the corresponding PON network through an optical splitter; In the disconnected state, connect to the PON network through the spare OLT port.

Specifically, in addition to being connected to the OLT port in the bridge, the NC device in the PON network can also be connected to the spare OLT port in the NC device. When the OLT port in the bridge is unavailable or does not need to be connected to the bridge For example, when the network link state is disconnected for a continuous preset number of operation cycles, a single PON network can realize the normal operation of the PON network by connecting with the standby OLT port. Wherein, when a single PON network is running, the spare OLT port can be connected to the corresponding PON network through an optical splitter. In some embodiments, the NC device corresponds to one ONU port, and the standby OLT port is connected to the ONU port of the NC device through an optical splitter. Thus, the independent operation of the PON network is realized.

The above-mentioned multi-bus network cross-network communication system can realize the interconnection of multiple PON networks by adding network bridges. At the same time, by means of the standby OLT port, a single PON network can operate normally in a single subnet after being separated from the entire network.

In one embodiment, as shown in FIG. 2 , a method for multi-bus network cross-network communication is provided, and the method is applied to the multi-bus network cross-network communication system in FIG. 1 as an example to illustrate, including the following steps:

Step S100, receiving the data frame through the first OLT port in the bridge, and broadcasting the data frame to the first PON network.

Step S200, detecting whether the data frame needs to be transmitted to the second PON network, and if necessary, broadcasting the data frame to the second PON network through the second OLT port in the bridge.

The bridge includes an OLT port, the OLT port includes a first OLT port and a second OLT port, the PON network includes a first PON network and a second PON network, the first PON network corresponds to the first OLT port, and the second PON network corresponds to The second OLT port corresponds.

Specifically, initialize the address segment of the PON network corresponding to each port of the bridge, configure the address segment of the PON network corresponding to at least one OLT port in the bridge, and establish the connection relationship between the OLT port and each PON network, so that the PON network The first PON network corresponds to the first OLT port in the bridge, and the second PON network corresponds to the second OLT port in the bridge. After the bridge is initialized, when the first OLT port in the bridge receives the downlink data frame, the first OLT port broadcasts the data frame to the corresponding first PON network, and at the same time, detects whether the data frame needs to be transmitted to The second PON network, if not needed, discards the current data frame, if necessary, forwards the data frame to the second OLT port through the bridge, and broadcasts the data frame to the second PON network through the second OLT port.

For example, after the bridge OLT port receives the FC frame, it broadcasts the FC frame to the current PON network, and at the same time judges whether the current FC frame is an FC frame transmitted to other PON networks, and if not, then broadcasts the FC frame to the current PON network. The FC frame is discarded after being broadcast into the current PON network. If the current FC frame is an FC frame that needs to be transmitted to other PON networks, the FC frame is forwarded to the OLT port corresponding to the other PON network, and the FC frame enters the other PON network through the OLT port.

The above-mentioned multi-bus network cross-network communication method receives the data frame through the first OLT port in the bridge, broadcasts the data frame to the first PON network, and when it is detected that the data frame needs to be transmitted to the second PON network, transmits the data frame through the network. The second OLT port in the bridge broadcasts the data frame to the second PON network, thereby avoiding data transmission conflicts between networks and realizing interconnection and communication of multiple PON networks.

In one embodiment, as shown in Figure 3, a kind of off-grid communication mode is provided, and the method is applied to the multi-bus network inter-network communication system in Figure 1 as an example to illustrate, including the following steps:

Step S410, through the ONU unit of the NC device in the PON network, detect the network link status of the PON network and the OLT port in the bridge.

Step S420, when the network link state is disconnected in the continuous preset number of operating cycles, then disable the ONU port corresponding to the ONU unit of the NC equipment, and connect the connection port of the PON network by the OLT port in the bridge. Switch to the alternate OLT port of the NC device.

The preset number of running cycles is a predetermined number of running cycles, which can be one stack running cycle, three stack running cycles, and five stack running cycles, and the time when the link state is in the disconnected state reaches the preset number of times. During the run cycle, the PON network can be considered to be off the bridge.

Specifically, an ONU unit is set for the NC equipment in the PON network, and the network link state of the PON network and the OLT port in the bridge is detected by the ONU unit. The connection port is switched from the OLT port in the bridge to the standby OLT port of the NC device, so that the NC device communicates with the NT (Network Terminal, network terminal) device through the standby OLT port. Specifically, when the network link state is disconnected and reaches the preset stack running period, it is considered that the PON network has separated from the network bridge. At this time, the ONU port corresponding to the ONU unit of the NC equipment can be disabled, and the connection port of the PON network can be changed from The OLT port in the bridge is switched to the standby OLT port of the NC device, so that the NC device communicates with the NT (Network Terminal, network terminal) device through the standby OLT port.

For example, the NC device includes a spare OLT port, and the spare OLT port is connected to the input of the optical splitter, and the connection relationship is shown in FIG. 1 . When the PON network and the bridge are disconnected, the ONU unit of the NC device disables the ONU port of the NC device after judging the three cycles of the link port, and switches the connection with the OLT port of the bridge to the standby OLT port, so that the NC The standby OLT port of the device is connected to the network, and the NC device realizes the data downlink function of the OLT unit. The NC device sends commands and receives the data and status of the NT device through the standby OLT port.

In the above-mentioned embodiment, by the ONU unit of the NC equipment in the PON network, the network link state of the OLT port in the PON network and the bridge is detected, and when the network link state is disconnected in a continuous preset number of operating cycles In the state, the ONU port corresponding to the ONU unit of the NC equipment is disabled, and the connection port of the PON network is switched from the OLT port in the bridge to the standby OLT port of the NC equipment. Therefore, it can be realized that a single PON network can operate normally in a single subnet after it is separated from the entire multi-bus network inter-network communication system by means of a spare OLT port.

In one embodiment, as shown in FIG. 4 , a message configuration method is provided, and the method is applied to the multi-bus network cross-network communication system in FIG. 1 as an example to illustrate, including the following steps:

Step S301, time synchronization is performed on the NC devices in the first PON network and the second PON network.

Step S302, according to the time synchronization result, perform message configuration on the NC equipment, when the NC equipment in the first PON network sends a message to the NT equipment in the second PON network within a preset time period, it is the second PON within the preset time period. NC devices in the network configure empty messages.

Specifically, time synchronization is performed on the NC devices in the first PON network and the second PON network. For example, the bridge device performs time synchronization on the NC device nodes of the FC-EA-1553 in each PON network through the class 1558 process, and the synchronization process is initiated by the NC device, as shown in Figure 5, which is a schematic diagram of the time synchronization process.

According to the time synchronization result, message configuration is performed on the NC device. When the NC device in the first PON network sends a message to the NT device in the second PON network within the preset time period, the message is sent to the NT device in the second PON network within the preset time period. NC device configuration empty message. For example, through time synchronization, the time synchronization accuracy of each NC device is at the microsecond level, and each NC device arranges messages according to the time synchronization result. As shown in FIG. 6 , it is a schematic flowchart of message arrangement. Among them, when the NC in the PON1 network sends a message to the NT in the PON N, the NC in the PON N network configures a null message in the corresponding time period to ensure that there is no upstream data in the current network and avoid upstream data conflicts.

In the above embodiment, time synchronization is performed on the NC devices in the first PON network and the second PON network, and according to the time synchronization result, message configuration is performed on the NC devices. When the NT device in the second PON network sends a message, a null message is configured for the NC device in the second PON network within a preset time period. Therefore, it can be ensured that there is no upstream data in the current PON network, and conflict of upstream data can be avoided.

In one embodiment, as shown in FIG. 7 , it is a schematic flowchart of a possible implementation manner of step S300, including the following steps:

Step S310, the data frame received by the first OLT port is forwarded to the second OLT port through the bridge.

Step S320, broadcast the data frame to the second PON network through the second OLT port.

Specifically, when the data frame needs to be transmitted to the second PON network, the data frame received by the first OLT port is forwarded to the second OLT port through the bridge, and then the data frame is broadcast to the corresponding OLT port through the second OLT port. The second PON network.

In the above embodiment, the data frame received by the first OLT port is forwarded to the second OLT port through the bridge, and the data frame is broadcast to the second PON network through the second OLT port. Data forwarding can be realized through bridges, avoiding data transmission conflicts between networks, and realizing interconnected communication of multiple PON networks.

It should be understood that although the steps in the flowcharts of FIGS. 2-7 are shown in sequence according to the arrows, these steps are not necessarily executed in the sequence shown by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order, and these steps may be performed in other orders. Moreover, at least a part of the steps in FIGS. 2-7 may include multiple steps or multiple stages. These steps or stages are not necessarily executed and completed at the same time, but may be executed at different times. The execution of these steps or stages The order is also not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the steps or phases within the other steps.

In one embodiment, as shown in FIG. 8 , a multi-bus network inter-network communication device is provided. The multi-bus network inter-network communication device is applied to a multi-bus network inter-network communication system. The multi-bus network inter-network communication system includes: A bridge and a PON network, wherein the bridge includes an OLT port, the OLT port includes a first OLT port and a second OLT port, the PON network includes a first PON network and a second PON network, and the first PON network corresponds to the first OLT port , the second PON network corresponds to the second OLT port; the multi-bus network cross-network communication device includes: a single-network transmission module 801 and a cross-network transmission module 802, wherein:

A single network transmission module 801, configured to receive the data frame through the first OLT port in the bridge, and broadcast the data frame to the first PON network;

The cross-network transmission module 802 is used to detect whether the data frame needs to be transmitted to the second PON network, and if necessary, broadcast the data frame to the second PON network through the second OLT port in the bridge.

In one of the embodiments, the multi-bus network cross-network communication device further includes a network switching module for: detecting the network link status of the OLT port in the PON network and the bridge through the ONU unit of the NC device in the PON network; When the network link state is disconnected for a continuous preset number of running cycles, the ONU port corresponding to the ONU unit of the NC device is disabled, and the connection port of the PON network is switched from the OLT port in the bridge to the NC Alternate OLT port for the device.

In one of the embodiments, the multi-bus network cross-network communication device further includes a time synchronization module, configured to: perform time synchronization on the NC devices in the first PON network and the second PON network; Message configuration, when the NC device in the first PON network sends a message to the NT device in the second PON network within the preset time period, configure a null message for the NC device in the second PON network within the preset time period.

In one embodiment, the cross-network transmission module 802 is further configured to: forward the data frame received by the first OLT port to the second OLT port through the bridge; and broadcast the data frame to the second PON through the second OLT port network.

For the specific definition of the multi-bus network cross-network communication device, reference may be made to the above definition of the multi-bus network cross-network communication method, which will not be repeated here. Each module in the above multi-bus network cross-network communication device may be implemented in whole or in part by software, hardware and combinations thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a computer device is provided, and the computer device may be a terminal, and its internal structure diagram may be as shown in FIG. 9 . The computer equipment includes a processor, memory, a communication interface, a display screen, and an input device connected by a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium, an internal memory. The nonvolatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the execution of the operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for wired or wireless communication with an external terminal, and the wireless communication can be realized by WIFI, operator network, NFC (Near Field Communication) or other technologies. When the computer program is executed by the processor, a multi-bus network cross-network communication method is realized. The display screen of the computer equipment may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment may be a touch layer covered on the display screen, or a button, a trackball or a touchpad set on the shell of the computer equipment , or an external keyboard, trackpad, or mouse.

Those skilled in the art can understand that the structure shown in FIG. 9 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.

In one embodiment, a server is provided, including a memory and a processor, a computer program is stored in the memory, and the processor implements the following steps when executing the computer program:

Receive the data frame through the first OLT port in the bridge, and broadcast the data frame to the first PON network;

Detect whether the data frame needs to be transmitted to the second PON network, and if necessary, broadcast the data frame to the second PON network through the second OLT port in the bridge.

In one embodiment, the processor also implements the following steps when executing the computer program: by the ONU unit of the NC device in the PON network, detecting the network link state of the OLT port in the PON network and the bridge; when the network link state is at When the continuous preset number of running cycles are in the disconnected state, the ONU port corresponding to the ONU unit of the NC equipment is disabled, and the connection port of the PON network is switched from the OLT port in the bridge to the standby OLT port of the NC equipment.

In one embodiment, the processor further implements the following steps when executing the computer program: time synchronization is performed on the NC devices in the first PON network and the second PON network; according to the time synchronization result, message configuration is performed on the NC devices. When the NC device in the PON network sends a message to the NT device in the second PON network within the preset time period, a null message is configured for the NC device in the second PON network within the preset time period.

In one embodiment, the processor further implements the following steps when executing the computer program: forwarding the data frame received by the first OLT port to the second OLT port through the bridge; broadcasting the data frame to the second OLT port through the second OLT port PON network.

In one embodiment, a computer-readable storage medium is provided on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: the ONU unit of the NC device in the PON network detects the network link status of the OLT port in the PON network and the bridge; when the network link status When it is disconnected for a continuous preset number of running cycles, the ONU port corresponding to the ONU unit of the NC equipment is disabled, and the connection port of the PON network is switched from the OLT port in the bridge to the standby OLT port of the NC equipment .

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: time synchronization is performed on the NC devices in the first PON network and the second PON network; according to the time synchronization result, message configuration is performed on the NC devices. When an NC device in a PON network sends a message to an NT device in a second PON network within a preset time period, a null message is configured for the NC device in the second PON network within the preset time period.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: forwarding the data frame received by the first OLT port to the second OLT port through the bridge; broadcasting the data frame to the second OLT port through the second OLT port Two PON networks.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage In the medium, when the computer program is executed, it may include the processes of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database or other media used in the various embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory, or optical memory, and the like. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, the RAM may be in various forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features It is considered to be the range described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be noted that, for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

Claims

A multi-bus network cross-network communication method, the method is applied to a multi-bus network cross-network communication system, the multi-bus network cross-network communication system includes a bridge and a PON network, wherein the bridge includes an OLT port, and the The OLT port includes a first OLT port and a second OLT port, the PON network includes a first PON network and a second PON network, the first PON network corresponds to the first OLT port, and the second PON network Corresponding to the second OLT port; the method includes:

Receive data frames through the first OLT port in the bridge, and broadcast the data frames to the first PON network;

Detecting whether the data frame needs to be transmitted to the second PON network, and if necessary, broadcasting the data frame to the second PON network through the second OLT port in the bridge.
The method of claim 1, wherein the method further comprises:

Through the ONU unit of the NC equipment in the PON network, the network link status of the OLT port in the PON network and the bridge is detected;

When the network link state is disconnected for a continuous preset number of operating cycles, the ONU port corresponding to the ONU unit of the NC device is disabled, and the connection port of the PON network is replaced by the network The OLT port in the bridge is switched to the standby OLT port of the NC device.
The method according to claim 1, wherein before the detecting whether the data frame needs to be transmitted to the second PON network, comprises:

Time synchronization is performed on the NC devices in the first PON network and the second PON network;

According to the time synchronization result, a message configuration is performed on the NC device, and when the NC device in the first PON network sends a message to the NT device in the second PON network within a preset time period, the preset time period A null message is configured for the NC device in the second PON network.
The method according to claim 1, wherein the broadcasting of the data frame to the second PON network through the second OLT port in the bridge comprises:

forwarding the data frame received by the first OLT port to the second OLT port through the bridge;

The data frame is broadcast to the second PON network through the second OLT port.
A multi-bus network cross-network communication device, the device is applied to a multi-bus network cross-network communication system, the multi-bus network cross-network communication system includes a bridge and a PON network, wherein the bridge includes an OLT port, and the The OLT port includes a first OLT port and a second OLT port, the PON network includes a first PON network and a second PON network, the first PON network corresponds to the first OLT port, and the second PON network Corresponding to the second OLT port; the device includes:

a single network transmission module, configured to receive data frames through the first OLT port in the bridge, and broadcast the data frames to the first PON network;

A cross-network transmission module is used to detect whether the data frame needs to be transmitted to the second PON network, and if necessary, broadcast the data frame to the second OLT port in the bridge Two PON networks.
A multi-bus network cross-network communication system, comprising:

a network bridge, the network bridge includes an OLT port, and the OLT port includes a first OLT port and a second OLT port;

PON network, the PON network includes a first PON network and a second PON network; the first OLT port is connected to the first PON network through an optical splitter, and the second OLT port is connected to the second PON through an optical splitter network;

The bridge is configured to receive data frames through the first OLT port and broadcast the data frames to the first PON network, and the bridge detects whether the data frames need to be transmitted to the second The PON network, if necessary, broadcasts the data frame to the second PON network through the second OLT port in the bridge.
The system according to claim 6, wherein the NC equipment in the PON network corresponds to a spare OLT port, and the spare OLT port is connected to the corresponding PON network through the optical splitter; the NC equipment is used when all the The PON network is connected through the standby OLT port when the network link state is in a disconnected state for a continuous preset number of operation cycles.
The system according to claim 7, wherein the NC device corresponds to one ONU port, and the standby OLT port is connected to the ONU port of the NC device through the optical splitter.
A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 4 when the processor executes the computer program.
A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method of any one of claims 1 to 4.