CN116366427A - Link switching method, device, equipment and medium for chain equipment networking - Google Patents

Abstract

The application discloses a link switching method, device, equipment and medium for chain equipment networking, and belongs to the technical field of communication. The method comprises the following steps: if the occurrence of the link interruption event is detected, identifying the occurrence position of the link interruption; determining starting instruction information and working mode instruction information sent to standby wireless equipment connected with current wired equipment according to the occurrence position of the link interruption; and receiving a response message fed back by the standby wireless equipment, and establishing a second network link based on the standby wireless equipment connected with the wired equipment on the opposite side of the link interruption. According to the technical scheme, whether the data transmission of the chain type equipment networking is interrupted or not can be detected in real time, and the terminal can be repaired at the fastest speed under the condition that the interruption occurs, so that the normal data interaction of the chain type equipment networking is ensured.

Description

Link switching method, device, equipment and medium for chain equipment networking

Technical Field

The application belongs to the technical field of communication, and particularly relates to a link switching method, device, equipment and medium for chain equipment networking.

Background

The chain equipment networking can form a network by a plurality of computers and network equipment so as to transmit data and information and realize the cable-free connection among the computers. The network connection is realized by connecting nodes in series, and each node is only connected with two adjacent nodes to form a chain. The chain type equipment networking can realize network connection spanning a longer distance, and the networking mode can realize maximized network coverage under the condition of limited resources. But when one of the devices in the chain fails, or the network link is damaged, the whole chained network fails.

When the chain equipment networking fails, the network state is monitored in real time by arranging a monitoring and failure automatic detection system, an alarm is automatically sent out after the failure is found, and the system is automatically restarted to repair the failure. After a network failure occurs, the failure needs to be located by remote diagnosis and log analysis to determine the cause and implement the corresponding repair measures.

However, the processing of the networking faults of the chain equipment still needs to manually analyze reasons and formulate solving measures for the faults, and the problem that the user cannot normally use the network due to long repairing time, so that the normal operation of the network and the transmission and interaction of data are affected, and the user experience is reduced may occur. Therefore, how to detect the networking state of the chain device in real time and automatically repair the network when the network of the chain device fails is a problem to be solved in the art.

Disclosure of Invention

The embodiment of the application aims to provide a link switching method, a device, equipment and a medium for chain equipment networking, which can detect whether the data transmission of the chain equipment networking is interrupted in real time, repair a terminal at the fastest speed under the condition that the interruption occurs, and ensure the normal data interaction of the chain equipment networking.

In a first aspect, an embodiment of the present application provides a link switching method of a chained device network, where the chained device network includes a first network formed by chained connection of wired devices, each wired device is connected to a wireless device, and a second network formed by chained connection of the wireless devices; the method is performed by a wired device; the method comprises the following steps:

if the occurrence of the link interruption event is detected, identifying the occurrence position of the link interruption;

determining starting instruction information and working mode instruction information sent to standby wireless equipment connected with current wired equipment according to the occurrence position of the link interruption;

and receiving a response message fed back by the standby wireless equipment, and establishing a second network link based on the standby wireless equipment connected with the wired equipment on the opposite side of the link interruption.

Further, determining, according to the occurrence position of the link interruption, start instruction information and working mode instruction information sent to the standby wireless device connected to the current wired device, where the determining includes:

if the occurrence position of the link interruption is an upstream link, sending starting instruction information and first working mode instruction information to standby wireless equipment connected with current wired equipment, and starting the standby wireless equipment according to a first working mode;

and if the occurrence position of the link interruption is a downstream link, starting instruction information and second working mode instruction information which are sent to the standby wireless equipment connected with the current wired equipment are used for starting the standby wireless equipment according to a second working mode.

Further, if the occurrence position of the link interruption is an upstream link, starting instruction information and first working mode instruction information sent to a standby wireless device connected with the current wired device are provided for the standby wireless device to start according to a first working mode, including:

if the occurrence position of the link interruption is an upstream link, a first LLDP data packet is constructed; the first LLDP data packet comprises a link interrupt occurrence position field and a first working mode starting field;

If the occurrence position of the link interruption is a downstream link, starting instruction information and second working mode instruction information sent to the standby wireless device connected with the current wired device are provided for the standby wireless device to start according to a second working mode, and the method comprises the following steps:

if the occurrence position of the link interruption is a downstream link, a second LLDP data packet is constructed; the second LLDP packet includes a link interrupt occurrence location field and a second mode initiation field.

Further, after receiving the response message fed back by the standby wireless device, the method further includes:

identifying port number information for connection with the backup wireless device;

and updating the network topology of the chain equipment networking according to the port number information and the working mode instruction information.

Further, after establishing the second network link based on the backup wireless device being connected to the wired device opposite the link outage, the method further comprises:

if the link interruption recovery event is detected, determining closing instruction information sent to the standby wireless equipment connected with the current wired equipment according to the recovery position of the link interruption.

In a second aspect, an embodiment of the present application provides a control method for a vehicle access control system based on UWB, where the chain device network includes a first network formed by chain connection of wired devices, and each wired device is connected to a wireless device, where the wireless device is connected to a second network formed by chain connection; the method is performed by a wireless device; the method comprises the following steps:

if the starting instruction information and the working mode instruction information sent by the wired equipment connected with the current wireless equipment are received, starting according to the working mode instruction information;

sending a response message to the wired equipment connected with the current wireless equipment;

a second network link is established with the standby wireless device connected to the wired device opposite the link disruption based on the current operating mode.

Further, the method for starting according to the working mode instruction information comprises the following steps:

if the working mode instruction information is the first working mode instruction information, starting a WiFi STA function;

and if the working mode instruction information is the second working mode instruction information, starting the WiFi AP function.

Further, the identifying that the working mode instruction information is the first working mode instruction information or the second working mode instruction information includes:

Receiving an LLDP data packet, and determining the LLDP data packet as first working mode instruction information if a link interruption occurrence position field included in the LLDP data packet is an upstream link;

and receiving an LLDP data packet, and determining the LLDP data packet as second working mode instruction information if the occurrence position field of the link interruption included in the LLDP data packet is a downstream link.

In a third aspect, an embodiment of the present application provides a link switching apparatus for a chain device networking, where the chain device networking includes a first network formed by chain connection of wired devices, and each wired device is connected to a wireless device, and a second network formed by chain connection of the wireless devices; the device is configured in a wired device; the device comprises:

the identification module is used for identifying the occurrence position of the link interruption if the occurrence of the link interruption event is detected;

the determining module is used for determining starting instruction information and working mode instruction information which are sent to the standby wireless equipment connected with the current wired equipment according to the occurrence position of the link interruption;

and the receiving module is used for receiving the response message fed back by the standby wireless equipment and establishing a second network link based on the standby wireless equipment connected with the wired equipment on the opposite side of the link interruption.

In a fourth aspect, an embodiment of the present application provides a link switching apparatus for a chain device networking, where the chain device networking includes a first network formed by chain connection of wired devices, and each wired device is connected to a wireless device, and the wireless device is connected to a second network formed by chain connection; the apparatus is configured to a wireless device, the apparatus comprising:

the starting module is used for starting according to the working mode instruction information if the starting instruction information and the working mode instruction information sent by the wired equipment connected with the current wireless equipment are received;

the sending module is used for sending a response message to the wired equipment connected with the current wireless equipment;

and the establishing module is used for establishing a second network link with the standby wireless device connected with the wired device opposite to the link interruption based on the current working mode.

In a fifth aspect, embodiments of the present application provide an electronic device comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.

In a sixth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.

In a seventh aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.

In the embodiment of the application, if the occurrence of the link interruption event is detected, the occurrence position of the link interruption is identified; determining starting instruction information and working mode instruction information sent to standby wireless equipment connected with current wired equipment according to the occurrence position of the link interruption; and receiving a response message fed back by the standby wireless equipment, and establishing a second network link based on the standby wireless equipment connected with the wired equipment on the opposite side of the link interruption. By executing the scheme, whether the data transmission of the chain type equipment networking is interrupted or not can be detected in real time, and the terminal can be repaired at the fastest speed under the condition that the interruption occurs, so that the normal data interaction of the chain type equipment networking is ensured.

Drawings

Fig. 1 is a flow chart of a link switching method of a chain device networking according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a chain device networking according to an embodiment of the present application;

fig. 3 is a schematic diagram of an LLDP message format according to an embodiment of the disclosure;

fig. 4 is a schematic diagram of bearer information of an LLDPDU according to an embodiment of the present application;

fig. 5 is a schematic diagram of interactive signaling between a wired device and a wireless device according to an embodiment of the present application;

fig. 6 is a flow chart of a link switching method of a chain device networking provided in the second embodiment of the present application;

fig. 7 is a schematic structural diagram of a link switching device of a chain device networking according to a third embodiment of the present application;

fig. 8 is a schematic structural diagram of a link switching device of a chain device networking according to a fourth embodiment of the present application;

fig. 9 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following detailed description of specific embodiments thereof is given with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the matters related to the present application are shown in the accompanying drawings. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or at the same time. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The link switching method, device, equipment and medium for the chain equipment networking provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.

Example 1

Fig. 1 is a flow chart of a link switching method of a chain device networking according to an embodiment of the present application. The chain equipment networking comprises a first network formed by chain connection of wired equipment, each wired equipment is connected with a wireless equipment, and a second network formed by chain connection of the wireless equipment; the method is performed by a wired device; as shown in fig. 1, the method specifically comprises the following steps:

s101, if the occurrence of the link interruption event is detected, the occurrence position of the link interruption is identified.

Firstly, the usage scenario of the present solution may be a scenario in which after detecting a link interruption, the wired device determines a link interruption position and opens a corresponding standby wireless device, so that the corresponding standby wireless device establishes a link with a standby wireless device connected to the wired device opposite to the link interruption.

Based on the above usage scenario, it can be understood that the execution body of the application may be any wired device in the chain device networking, which is not limited herein too much.

Fig. 2 is a schematic structural diagram of a chain device networking according to an embodiment of the present application. As shown in fig. 2, the chained device networking includes a first network formed by chained connection of wired devices, each wired device is connected with a wireless device, and a second network formed by chained connection of the wireless devices; the method is performed by a wired device.

Chained device networking may refer to connecting multiple devices together through a physical or wireless network to form a network system that may enable information sharing and interaction between the devices. The chain type equipment networking comprises: master device, slave device, network connection, network protocol and control protocol. In this solution, the master device may be a wired device, and the slave device may be a wireless device.

The wired device may be a device that connects with other devices using wired network technology, and may include, for example, a computer, a printer, a router, and the like.

The first network formed by the chain connection of the wired devices can be a wired Ethernet, and the wired Ethernet can connect different computer devices together, such as a printer, a router, a gateway and the like, so that data transmission and sharing can be realized. It uses special network wires for physical connections and wired ethernet protocols (also called ethernet protocols) for communication.

The wireless device may be a wireless network card, a wireless router, or a wireless access point.

The second network of wireless devices may be a wireless local area network that uses wireless technology (e.g., bluetooth or Wi-Fi) to connect users and devices, which allows multiple devices to share data and resources over a range.

The link interruption event may be an event that causes a link interruption when one or more devices in the chain device network cannot work normally, thereby affecting the normal operation of the entire network.

Link breaks in a chain device networking may occur at any one node, such as a network device, switch, router, or customer premises equipment, etc.

The wired devices in the chain device networking may detect the occurrence of a link outage event through an ethernet heartbeat detection mechanism. When the link is interrupted, the adjacent device sends a heartbeat message, and if the heartbeat message is not received, the link is interrupted.

After the wired device in the chain device networking detects that the link interrupt event occurs, the occurrence position of the link interrupt can be identified by analyzing the TTL (Time To Live) and RTT (Round Trip Time) of the data packet, and the delay between sending the message and receiving the response of the other end. The TTL refers to the expiration time of the data packet in the network, the RTT refers to the time interval from the transmitting end to the receiving end of the data packet, if an interruption occurs, the RTT will become longer, and the TTL will also become shorter, so that the occurrence position of the link interruption can be identified according to the changed TTL and RTT.

S102, determining starting instruction information and working mode instruction information sent to the standby wireless equipment connected with the current wired equipment according to the occurrence position of the link interruption.

The turn-on command information sent by the wired device to the standby wireless device connected to the current wired device may be a command to activate the wireless router, where the command may instruct the standby wireless device to set its current state to "on", thereby activating the device to provide a standby network topology for the current network.

The operation mode instruction information sent by the wired device to the standby wireless device connected to the current wired device may be an instruction for prompting the wireless device to switch to which operation mode, and specifically, the standby wireless device may include two operation modes, i.e., a WiFi STA (Wi-Fi Station, wi-Fi terminal) and a WiFi AP (Wireless Fidelity Access Point, wireless network technology). The WiFi STA mode is a WiFi single station mode, and is a mode for accessing the Internet. The method is connected to a router or a wireless access point through a wireless technology, so that network connection is obtained, and connection of the Internet is realized. WiFi AP mode is a wireless local area network technology that can connect one computer to another wireless device to share data, network resources, and Internet connections.

The wired equipment in the chain equipment networking can monitor the equipment in real time through a link monitoring system according to the occurrence position of the link interruption, and when the wired equipment fails, the system can determine opening instruction information and working mode instruction information according to the occurrence position of the link interruption. For example, in the order of connection of the wired devices, from left to right, the wired device a, the wired device B, and the wired device C are the wired device 1, the wireless device 2, and the wireless device 3, which are the corresponding standby wireless devices. If the link interruption position is between the wired device a and the wired device B, it is determined that the operation mode instruction information of the wireless device 1 is WiFi AP mode instruction information, and the operation mode instruction information of the wireless device 2 is WiFi STA mode. After the starting instruction information and the working mode instruction information are determined, the wired equipment can timely inform the standby wireless equipment, and the starting instruction information and the working mode instruction information are sent to the standby wireless equipment so as to start the standby function of the standby wireless equipment and meet the service requirement.

On the basis of the above technical solutions, optionally, determining, according to the occurrence position of the link interruption, start instruction information and working mode instruction information sent to a standby wireless device connected to a current wired device, includes:

If the occurrence position of the link interruption is an upstream link, sending starting instruction information and first working mode instruction information to standby wireless equipment connected with current wired equipment, and starting the standby wireless equipment according to a first working mode;

and if the occurrence position of the link interruption is a downstream link, starting instruction information and second working mode instruction information which are sent to the standby wireless equipment connected with the current wired equipment are used for starting the standby wireless equipment according to a second working mode.

In this scheme, the upstream link may refer to a link between the current wired device and the location where the link interruption occurs. For example, the current wired device is wired device a, the lower-level wired device is wired device B, and the upstream link is a link between the wired device a and the location where the link interruption occurs.

The first operation mode instruction information may be instruction information which is sent by the wired device to the corresponding standby wireless device and enables the standby wireless device to operate in the WiFi AP mode.

When the upstream link interruption occurs, the wired device can send start instruction information and first working mode instruction information to the standby wireless device connected with the current wired device through a network control protocol, so that the standby wireless device can automatically topology the network when the upstream link interruption occurs, and the stability of the network is ensured.

After the standby wireless device receives the opening instruction information and the first working mode instruction information of the wired device, the communication parameters which are the same as those of the wired device can be set according to the designated parameters in the first working mode instruction information, and the first working mode is started. The standby wireless device will then begin to receive and transmit data, thereby effecting failover.

The downstream link may refer to a link between a subordinate device of the current wired device and a location where the link interruption occurs. For example, the current wired device is wired device a, the lower-level wired device is wired device B, and the downstream link is a link between the occurrence position of the link interruption and the wired device B.

The second operation mode instruction information may be instruction information sent by the wired device to the corresponding standby wireless device to enable the standby wireless device to operate in the WiFi STA mode.

After the standby wireless device receives the opening instruction information and the second working mode instruction information of the wired device, the communication parameters which are the same as those of the wired device can be set according to the designated parameters in the second working mode instruction information, and the second working mode is started. The standby wireless device will then begin to receive and transmit data, thereby effecting failover.

In the scheme, the working mode of the standby wireless equipment is determined according to the occurrence position of the link interruption, so that the system can be automatically switched under the condition of the link interruption, the normal operation of the network is ensured, and the reliability and the stability of the network are improved. In addition, the arrangement can effectively reduce the workload of maintenance personnel and save time and cost.

On the basis of the above technical solutions, optionally, if the occurrence position of the link interruption is an upstream link, starting instruction information and first working mode instruction information sent to a standby wireless device connected to a current wired device, where the starting instruction information is used for the standby wireless device to start according to a first working mode, including:

if the occurrence position of the link interruption is an upstream link, a first LLDP data packet is constructed; the first LLDP data packet comprises a link interrupt occurrence position field and a first working mode starting field;

if the occurrence position of the link interruption is a downstream link, starting instruction information and second working mode instruction information sent to the standby wireless device connected with the current wired device are provided for the standby wireless device to start according to a second working mode, and the method comprises the following steps:

If the occurrence position of the link interruption is a downstream link, a second LLDP data packet is constructed; the second LLDP packet includes a link interrupt occurrence location field and a second mode initiation field.

In this scheme, an LLDP (Link Layer Discovery Protocol, local area network topology discovery protocol packet) packet is a protocol for discovering and exchanging information between network layer switching devices. It can be used to automatically discover the location, type and functionality of neighbor devices, thereby helping network administrators locate problems, improving network performance and security. In this solution, the first LLDP packet may be an LLDP packet constructed when a wireless device corresponding to a current wired device is started in a first working mode. The second LLDP packet may be an LLDP packet constructed when a wireless device corresponding to the current wired device is started in the second operation mode.

In the chain device networking, the occurrence location field of the link break may be a link break point.

The first operation mode initiation field may be a field that the wired device sends to the corresponding standby wireless device to cause the corresponding wireless device to operate in accordance with the first operation mode. The second operation mode initiation field may be a field sent by the wired device to the corresponding standby wireless device to cause the corresponding wireless device to operate in accordance with the second operation mode.

The LLDP packet can be constructed by:

1. adding a frame control field in the LLDP header, wherein the frame control field comprises information such as a frame control type, version information, a frame length and the like;

2. adding information such as message type, total message length, port number and the like into a message field of an LLDP data packet;

3. adding a load field of an LLDP data packet, wherein the load field comprises information such as a port descriptor, a system name, a system description, a system type, a port type and the like;

4. information such as checksum frame end is added to the end of the LLDP packet.

Wherein, each wired device and standby wireless device transmit LLDP network packet between the wired device and the corresponding standby wireless device through the wired network. The LLDP protocol is used to announce information of one device and obtain information of other neighboring devices, and further store corresponding topology information in a related MIB (Management Information Base ), and trigger topology related upper layer protocol actions. In the LLDP network packet, local network state may be attached, and information may be sent to the neighbor device through the two-layer network.

The LLDP protocol is used for advertising information of one device and can obtain information of other adjacent devices, so that corresponding topology information can be stored in a related MIB, and topology related upper layer protocol actions can be triggered.

Fig. 3 is a schematic diagram of an LLDP message format according to an embodiment of the disclosure. As shown in fig. 3, the LLDP message is encapsulated in Ethernet II format, wherein:

DA: the destination MAC address is a fixed multicast MAC address 0x0180-C200-000E. I.e., the search Bridge group address; the address indicates that this LLDP frame is only transmitted on Two neighboring bridge interfaces, neither the Two-Port MAC Relay (TPMR) component nor the S-VLAN component nor the C-VLAN component nor the 802.1D bridge can forward frames destined for the address.

SA: the source MAC address is either a port MAC address or a device MAC address.

Type: the frame type is 0x88CC.

Data: LLDP data represented in LLDPDU format. This piece of data is the main piece of information.

FCS: a frame check sequence.

Wherein the LLDPDU is a payload of the LLDP for carrying messages to be sent.

Fig. 4 is a schematic diagram of bearer information of an LLDPDU according to an embodiment of the present application. As shown in fig. 4, which may include: a Chassis ID TLV, a Port ID TLV, a Time To Live TLV, a plurality of Optional TLVs, and End Of LLDPDU ID TLV.

Table 1 is a custom TLV information table included in the LLDPDU according to an embodiment of the present application, as shown in table 1:

TABLE 1

In the scheme, the LLDP data packet is arranged, so that the position of the occurrence of the link interruption can be effectively identified, and the corresponding working mode is started according to the position of the occurrence of the link interruption, thereby better realizing the automatic configuration and change of the network topology.

And S103, receiving a response message fed back by the standby wireless device, and establishing a second network link based on the standby wireless device connected with the wired device on the opposite side of the link interruption.

The reply message fed back by the standby wireless device to the wired device may be a confirmation message, which may include the instruction information of the wired device received by the standby wireless device, and the confirmation message may also include the working state of the standby wireless device, which is used to indicate that the standby wireless device has received and correctly processed the sent start instruction information and the working mode instruction information.

The standby wireless device may implement route forwarding such that the second network link may span multiple subnets to implement network connections between the two-sided wired devices. For example, in the order of connection of the wired devices, from left to right, the wired device a, the wired device B, and the wired device C are the wired device 1, the wireless device 2, and the wireless device 3, which are the corresponding standby wireless devices. If the link interruption occurs between the wired device a and the wired device B, the wireless device 1 is in a WiFi AP mode, the wireless device 2 is in a WiFi STA mode, and the second network link may be wired device 1-wireless device 2-wired device 3.

The wired device can set a copy address, so that the response message fed back by the wireless device is sent to the wired device, and the wired device can receive the response message fed back by the wireless device.

In the chain device networking, the wireless device can be connected with the wired device through a wireless access device or a wireless router, so that the connection between the standby wireless device and the wired device is realized. The backup wireless device may be connected to other backup wireless devices using wireless point-to-point (P2P) technology. Information can be mutually transmitted between wireless devices connected by using the P2P technology, so that networking between the wireless devices is realized. And after the connection between the wired device and the corresponding standby wireless device is completed, the standby wireless device and the standby wireless device on the opposite side can successfully establish the second network link.

On the basis of the above technical solutions, optionally, after receiving the reply message fed back by the standby wireless device, the method further includes:

identifying port number information for connection with the backup wireless device;

and updating the network topology of the chain equipment networking according to the port number information and the working mode instruction information.

In this scheme, in the chained device networking, the port number for connecting the wired device and the standby wireless device may be a communication port number for connecting two devices, which is generally used for controlling communication between devices in the network.

The wired device recognizes the port number by address resolution, which may be implemented by a standard protocol ARP (Address Resolution Protocol ) or RARP (Reverse Address Resolution Protocol, reverse address resolution protocol). When the wired device receives an ARP or RARP message, it collects the port number in the message and records it for subsequent communication use.

The network topology of a chained device networking may be a star network topology that connects devices in a chain with each node having only one next node, but each node may communicate with a previous node and a next node. When the chain device networking fails, the network topology may be wired device a-wired device B-wired device C. When the chain device has network fault and the fault position is between the wired device A and the wired device B, after the standby wireless device is used for data transmission, the network topology can be wired device A-wireless device 1-wireless device 2-wired device B-wired device C.

The wired device may determine a connection relationship between the wired device and the standby wireless device according to port number information of the connection of the wired device and the standby wireless device. And then, the wired device can update the network topology of the chained device networking according to the working mode instruction information sent by the wired device to the standby wireless device so as to achieve the expected network effect.

In the scheme, the network topology of the chain type equipment networking is updated according to the port number information and the working mode instruction information of the connection of the wired equipment and the standby wireless equipment, so that a more stable and reliable network environment, lower delay and higher bandwidth can be provided. In addition, the data transmission speed and performance of the network can be effectively improved, and the network connection is safer and more reliable.

In this embodiment, if a link interruption event is detected, the occurrence position of the link interruption is identified; determining starting instruction information and working mode instruction information sent to standby wireless equipment connected with current wired equipment according to the occurrence position of the link interruption; and receiving a response message fed back by the standby wireless equipment, and establishing a second network link based on the standby wireless equipment connected with the wired equipment on the opposite side of the link interruption. By the link switching method of the chain equipment networking, the link state can be rapidly detected, and the real-time repair of the link interruption can be realized, so that the network connection can be recovered to be normal under the condition of broken links.

Based on the above embodiments, optionally, after the backup wireless device establishes the second network link based on the backup wireless device connected with the wired device opposite to the link interruption, the method further includes:

if the link interruption recovery event is detected, determining closing instruction information sent to the standby wireless equipment connected with the current wired equipment according to the recovery position of the link interruption.

The link outage restoration event may be detected by a wired device. The interruption may be caused by network jitter or line faults. If the network is jittered, the connection state is automatically restored within a period of time, and a link interruption recovery event can be detected. If a line fails, a link outage restoration event may be detected after maintenance of the line. It will be appreciated that the wired device may send out heartbeat packets to the port of the interrupt at intervals, and when the wired device on the opposite side of the interrupt receives the heartbeat packet, and after replying to the heartbeat packet, it may determine that a link outage restoration event is detected.

After the link interruption recovery event, it may be determined, according to its recovery position at the link interruption, to send closing instruction information to the wireless device connected to the current wired device, where the closing instruction information may control the connected wireless device to switch from an on state to an off state, that is, disconnect the second network. The wired device and the wireless device can update the topological relation of the chained device networking based on the operation.

Fig. 5 is a schematic diagram of interactive signaling between a wired device and a wireless device according to an embodiment of the present application. As shown in fig. 5, the wired device is a main link, and the link states of the left end and the right end are detected by an interrupt mode. When the link state changes, the LLDP packet is rapidly sent to inform the wireless equipment of the node, and the switching from the wired link to the wireless link is performed. In addition, when the interruption recovery is detected, the wireless device of the node is turned off by rapidly transmitting the LLDP packet, and the wireless link is switched to the wired link.

In the embodiment, the fast link state detection and the seamless switching of the main and standby networks are realized in an interrupt mode.

By the arrangement, the method can not only realize automatic switching of link connection after interruption, but also automatically switch back to the original chain link connection after interruption recovery. The method can realize self-adaptive network switching under the condition of no manual operation, improves the network switching speed of the chained networking equipment, and achieves the effect of non-perception switching in the use process of users.

Example two

Fig. 6 is a flow chart of a link switching method of a chain device networking according to a second embodiment of the present application. The chain equipment networking comprises a first network formed by chain connection of wired equipment, and each wired equipment is connected with a wireless equipment, and the wireless equipment is connected with a second network formed by chain connection; the method is performed by a wireless device; as shown in fig. 6, the method specifically comprises the following steps:

S601, if the starting instruction information and the working mode instruction information sent by the wired equipment connected with the current wireless equipment are received, starting according to the working mode instruction information.

S602, sending a response message to the wired device connected with the current wireless device.

S603, establishing a second network link with the standby wireless device connected to the wired device opposite to the link interruption based on the current operation mode.

According to the technical scheme provided by the embodiment, if the starting instruction information and the working mode instruction information sent by the wired equipment connected with the current wireless equipment are received, starting is performed according to the working mode instruction information; sending a response message to the wired equipment connected with the current wireless equipment; a second network link is established with the standby wireless device connected to the wired device opposite the link disruption based on the current operating mode. By executing the technical scheme, whether the data transmission of the chain type equipment networking is interrupted or not can be detected in real time, and the terminal can be repaired at the fastest speed under the condition that the interruption occurs, so that the normal data interaction of the chain type equipment networking is ensured.

In the foregoing embodiment, optionally, the starting according to the operating mode instruction information includes:

If the working mode instruction information is the first working mode instruction information, starting a WiFi STA function;

and if the working mode instruction information is the second working mode instruction information, starting the WiFi AP function.

In the foregoing embodiment, optionally, the identifying that the operation mode instruction information is the first operation mode instruction information or the second operation mode instruction information includes:

receiving an LLDP data packet, and determining the LLDP data packet as first working mode instruction information if a link interruption occurrence position field included in the LLDP data packet is an upstream link;

and receiving an LLDP data packet, and determining the LLDP data packet as second working mode instruction information if the occurrence position field of the link interruption included in the LLDP data packet is a downstream link.

The link switching method of the chain device networking provided in the embodiment of the present application corresponds to the executing body of the first embodiment, and is switched from the wired device side to the wireless device side, so the implementation process and the technical effect of the embodiment can be referred to the first embodiment, and in order to avoid repetition, the description is omitted here.

Example III

Fig. 7 is a schematic structural diagram of a link switching device of a chain device networking according to a third embodiment of the present application. The chain equipment networking comprises a first network formed by chain connection of wired equipment, each wired equipment is connected with a wireless equipment, and a second network formed by chain connection of the wireless equipment; the device is configured in a wired device; as shown in fig. 7, the apparatus includes:

An identifying module 701, configured to identify an occurrence position of a link outage if a link outage event is detected;

a determining module 702, configured to determine, according to the occurrence position of the link interruption, start instruction information and working mode instruction information sent to a standby wireless device connected to a current wired device;

and the receiving module 703 is configured to receive a response message fed back by the standby wireless device, and establish a second network link based on the standby wireless device connected to the wired device opposite to the link interruption.

The link switching device of the chain device networking in the embodiment of the application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, wearable device, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.

The link switching device of the chain device networking in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The link switching device for chain device networking provided in the embodiment of the present application can implement each process in the first embodiment of the present application, and in order to avoid repetition, a detailed description is omitted here.

Example IV

Fig. 8 is a schematic structural diagram of a link switching device of a chain device networking according to a fourth embodiment of the present application. The chain equipment networking comprises a first network formed by chain connection of wired equipment, and each wired equipment is connected with a wireless equipment, and the wireless equipment is connected with a second network formed by chain connection; the apparatus is configured to a wireless device; as shown in fig. 8, the apparatus includes:

a starting module 801, configured to, if receiving start instruction information and working mode instruction information sent by a wired device connected to a current wireless device, start according to the working mode instruction information;

a sending module 802, configured to send a response message to a wired device connected to the current wireless device;

An establishing module 803 is configured to establish a second network link with a standby wireless device connected to the wired device opposite the link interruption based on the current operation mode.

The link switching device of the chain device networking in the embodiment of the application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, wearable device, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.

The link switching device of the chain device networking in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The link switching device for chain device networking provided in the embodiment of the present application can implement each process in the second embodiment of the present application, and in order to avoid repetition, a detailed description is omitted here.

Example five

Fig. 9 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present application. As shown in fig. 9, the embodiment of the present application further provides an electronic device 900, which includes a processor 901, a memory 902, and a program or an instruction stored in the memory 902 and capable of running on the processor 901, where the program or the instruction implements each process of the link switching method embodiment of the chain device networking when executed by the processor 901, and the process can achieve the same technical effect, and in order to avoid repetition, a description is omitted herein.

The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device described above.

Example six

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, each process of the link switching method embodiment of the chain device networking is implemented, and the same technical effect can be achieved, so that repetition is avoided, and no detailed description is given here.

Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

Example seven

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or an instruction, implementing each process of the link switching method embodiment of the chain device networking, and achieving the same technical effect, so as to avoid repetition, and no further description is provided here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

The foregoing description is only of the preferred embodiments of the present application and the technical principles employed. The present application is not limited to the specific embodiments described herein, but is capable of numerous obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the present application. Therefore, while the present application has been described in connection with the above embodiments, the present application is not limited to the above embodiments, but may include many other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.

Claims (12)

1. The link switching method of the chain equipment networking is characterized in that the chain equipment networking comprises a first network formed by chain connection of wired equipment, each wired equipment is connected with a wireless equipment, and a second network formed by chain connection of the wireless equipment; the method is performed by a wired device; the method comprises the following steps:

if the occurrence of the link interruption event is detected, identifying the occurrence position of the link interruption;

determining starting instruction information and working mode instruction information sent to standby wireless equipment connected with current wired equipment according to the occurrence position of the link interruption;

And receiving a response message fed back by the standby wireless equipment, and establishing a second network link based on the standby wireless equipment connected with the wired equipment on the opposite side of the link interruption.

2. The method of claim 1, wherein determining the start instruction information and the operation mode instruction information sent to the standby wireless device connected to the current wired device according to the occurrence position of the link interruption comprises:

if the occurrence position of the link interruption is an upstream link, sending starting instruction information and first working mode instruction information to standby wireless equipment connected with current wired equipment, and starting the standby wireless equipment according to a first working mode;

and if the occurrence position of the link interruption is a downstream link, starting instruction information and second working mode instruction information which are sent to the standby wireless equipment connected with the current wired equipment are used for starting the standby wireless equipment according to a second working mode.

3. The method of claim 2, wherein if the link interruption occurs at an upstream link, the step of sending start instruction information and first operation mode instruction information to the standby wireless device connected to the current wired device, where the start instruction information is used for the standby wireless device to start according to the first operation mode, includes:

If the occurrence position of the link interruption is an upstream link, a first LLDP data packet is constructed; the first LLDP data packet comprises a link interrupt occurrence position field and a first working mode starting field;

if the occurrence position of the link interruption is a downstream link, starting instruction information and second working mode instruction information sent to the standby wireless device connected with the current wired device are provided for the standby wireless device to start according to a second working mode, and the method comprises the following steps:

if the occurrence position of the link interruption is a downstream link, a second LLDP data packet is constructed; the second LLDP packet includes a link interrupt occurrence location field and a second mode initiation field.

4. The method of claim 1, wherein after receiving the reply message fed back by the standby wireless device, the method further comprises:

identifying port number information for connection with the backup wireless device;

and updating the network topology of the chain equipment networking according to the port number information and the working mode instruction information.

5. The method of claim 1, wherein after establishing a second network link based on the backup wireless device being connected to the wired device opposite the link outage, the method further comprises:

If the link interruption recovery event is detected, determining closing instruction information sent to the standby wireless equipment connected with the current wired equipment according to the recovery position of the link interruption.

6. The link switching method of the chain equipment networking is characterized in that the chain equipment networking comprises a first network formed by chain connection of wired equipment, and each wired equipment is connected with a wireless equipment, and the wireless equipment is connected with a second network formed by chain connection; the method is performed by a wireless device; the method comprises the following steps:

if the starting instruction information and the working mode instruction information sent by the wired equipment connected with the current wireless equipment are received, starting according to the working mode instruction information;

sending a response message to the wired equipment connected with the current wireless equipment;

a second network link is established with the standby wireless device connected to the wired device opposite the link disruption based on the current operating mode.

7. The method of claim 6, wherein the operating mode command information is initiated, comprising:

if the working mode instruction information is the first working mode instruction information, starting a WiFi STA function;

And if the working mode instruction information is the second working mode instruction information, starting the WiFi AP function.

8. The method of claim 7, wherein the identifying of the operating mode command information as either first operating mode command information or second operating mode command information comprises:

receiving an LLDP data packet, and determining the LLDP data packet as first working mode instruction information if a link interruption occurrence position field included in the LLDP data packet is an upstream link;

and receiving an LLDP data packet, and determining the LLDP data packet as second working mode instruction information if the occurrence position field of the link interruption included in the LLDP data packet is a downstream link.

9. The link switching device of the chain type equipment networking is characterized in that the chain type equipment networking comprises a first network formed by chain connection of wired equipment, each wired equipment is connected with a wireless equipment, and a second network formed by chain connection of the wireless equipment; the device is configured in a wired device; the device comprises:

the identification module is used for identifying the occurrence position of the link interruption if the occurrence of the link interruption event is detected;

the determining module is used for determining starting instruction information and working mode instruction information which are sent to the standby wireless equipment connected with the current wired equipment according to the occurrence position of the link interruption;

And the receiving module is used for receiving the response message fed back by the standby wireless equipment and establishing a second network link based on the standby wireless equipment connected with the wired equipment on the opposite side of the link interruption.

10. The link switching device of the chain type equipment networking is characterized in that the chain type equipment networking comprises a first network formed by chain connection of wired equipment, and each wired equipment is connected with a wireless equipment, and the wireless equipment is connected with a second network formed by chain connection; the apparatus is configured to a wireless device, the apparatus comprising:

the starting module is used for starting according to the working mode instruction information if the starting instruction information and the working mode instruction information sent by the wired equipment connected with the current wireless equipment are received;

the sending module is used for sending a response message to the wired equipment connected with the current wireless equipment;

and the establishing module is used for establishing a second network link with the standby wireless device connected with the wired device opposite to the link interruption based on the current working mode.

11. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the link switching method of a chain device networking according to any one of claims 1-5 or 6-8.

12. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the link switching method of a chain device networking according to any of claims 1-5 or claims 6-8.

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