Method for automatically binding wired switching equipment and wireless area width channel equipment

Abstract

The invention provides a method for automatically binding wired switching equipment and wireless area width channel equipment, which is characterized in that information interaction between the wired switching equipment and each wireless area width channel equipment is realized by using a two-layer multicast message; the method comprises the steps of determining a wireless service port and a wireless management port of a wired switching device, mapping the wireless service port and a corresponding wireless area wide channel device, and automatically binding a legal mapping relation, and the three steps are completed according to sending and receiving response conditions of a two-layer multicast message. According to the method, the stability, the accuracy and the high efficiency of automatic binding are guaranteed, the ID information of the wireless area width channel equipment is used as a basis for legality judgment and identity verification, the correctness is further guaranteed, and the automatic binding of the wired switching equipment and the wireless area width channel equipment can be efficiently completed on the premise of the stability and the accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of backbone network and wireless access network, in particular to a method for automatically binding wired switching equipment and wireless zone broadband channel equipment. Background Art

[0002] Hybrid networking refers to building a stable backbone network through wired switching equipment, while using wireless broadband channel equipment for flexible access. Hybrid networking can not only ensure the efficient operation of the network, but also realize the convenient expansion of the network.

[0003] In the prior art, in order to ensure the accuracy and stability of hybrid network data transmission, it is necessary to verify the mapping and binding relationship of the existing hybrid network as needed, and to complete the mapping and binding when the new network is formed, and to complete the mapping and binding when the new wireless zone width channel device is added. Wireless zone width channel devices can self-organize to form a wireless network, but the mapping and binding between wired switching devices and wireless zone width channel devices require configuration to be realized. The configuration methods of wired switching devices and wireless zone width channel devices are different, and the configuration complexity of each device is also different. If manual intervention is required to complete the configuration in each case, the mapping and binding cannot be completed flexibly and dynamically, which not only causes a waste of manpower, but also greatly reduces the configuration efficiency. Therefore, it is necessary to propose a method for automatically binding wired switching devices and wireless zone width channel devices to improve the configuration efficiency while ensuring stability and flexibility. Summary of the invention

[0004] The present invention provides a method for automatically binding a wired switching device with a wireless zone-wide channel device, which solves the problem of "low efficiency in binding a wired switching device with a wireless zone-wide channel device" in the prior art.

[0005] The present invention solves the technical problem through the following technical solutions:

[0006] A method for automatically binding a wired switching device and a wireless zone wide channel device, wherein the wired switching device comprises at least one wireless port, the number of the wireless zone wide channel device is at least one, and each wireless zone wide channel device self-organizes to form a wireless network, comprising the following steps:

[0007] (1) Confirm the wireless management port and wireless service port of the wired switching device:

[0008] For each wireless port, a first perception message is sent through the wireless port, and if the wireless port receives at least one first perception response message corresponding to the first perception message, the wireless port is set as a wireless management port, otherwise the wireless port is set as a wireless service port;

[0009] (2) Find the wireless zone bandwidth channel device mapped to each wireless service port:

[0010] 1) Close all wireless service ports;

[0011] 2) Open one of the wireless service ports as the current wireless service port, send a second perception message through the wireless management port of the wired switching device, at most one wireless zone width channel device responds to the second perception message, and provides a second perception response message corresponding to the second perception message to the wireless management port, wherein the second perception response message is filled with unique identity information of the wireless zone width channel device that responds;

[0012] The wired switching device judges the legitimacy of the identity information, and if so, maps the wireless zone bandwidth channel device corresponding to the identity information to the current wireless service port; otherwise, the identity information is discarded and the access of the wireless zone bandwidth channel device corresponding to the identity information is prohibited;

[0013] Close the current wireless service port;

[0014] 3) Open the next wireless service port as the current wireless service port and execute step 2) until all wireless service ports have completed step 2);

[0015] (3) Further confirm the mapping relationship and bind:

[0016] For each wireless service port of the wired switching device that has been mapped with a wireless zone bandwidth channel device, a setting message carrying the identity information corresponding to the wireless service port is sent to the wireless zone bandwidth channel device corresponding to the identity information. The corresponding wireless zone bandwidth channel device performs identity verification, and if they are consistent, returns a setting response message corresponding to the setting message. The wired switching device completes automatic binding of the wireless service port and the wireless zone bandwidth channel device according to the setting response message, otherwise it abandons access to the wireless zone bandwidth channel device that fails to provide a setting response message.

[0017] Furthermore, another method for confirming the wireless management port of the wired switching device in step (1) is:

[0018] For each wireless zone width channel device, the wireless zone width channel device actively sends a first perception response message to the wired switching device; when one of the wireless ports of the wired switching device receives the first perception response message, the wireless port is set to a wireless management port pending state;

[0019] The wired switching device sends a first perception message through the wireless port set to the wireless management port pending state, and if the wireless port set to the wireless management port pending state receives a first perception response message from the wireless zone wide channel device, the wireless port set to the wireless management port pending state is set to the wireless management port state;

[0020] If the wired switching device sends the first perception message three times in a row through the wireless port set to the wireless management port pending state, and the wireless port set to the wireless management port pending state does not receive the first perception response message from the wireless zone wide channel device, the wireless port is adjusted from the wireless management port pending state to the unknown port state.

[0021] Furthermore, another method for confirming the wireless service port of the wired switching device in step (1) is:

[0022] For each wireless port, a first perception message is sent through the wireless port. If another wireless port receives the first perception message, the other wireless port is set as a wireless service port.

[0023] Furthermore, there is at least one wired switching device, and each wired switching device is cascaded through a wired management port;

[0024] One wired switching device corresponds to one wireless network; for each wired switching device, the wired switching device is automatically bound to each wireless zone width channel device in the corresponding wireless network by executing steps (1), (2), and (3).

[0025] Furthermore, the wired switching device in step 2) makes a judgment on the legitimacy of the identity information, specifically: the wired switching device pre-stores the identity information of each wireless zone bandwidth channel device in a cache pool in advance. If the identity information carried by the second perception response message does not exist in the cache pool, the identity information carried by the second perception response message is deemed to be legal, and the wireless zone bandwidth channel device corresponding to the legal identity information is mapped to the current wireless service port. Otherwise, the identity information is discarded and access to the wireless zone bandwidth channel device corresponding to the identity information is prohibited.

[0026] The advantages and effects of the invention are:

[0027] 1. First, the wireless management port and wireless service port of the wired switching device are confirmed by sending a first perception message and receiving a first perception response message. Secondly, for each wireless service port, the wireless management port is used to send a second perception message and receive a second perception response message to obtain the identity information of the wireless zone width channel device corresponding to the wireless service port and make a legality judgment. For legal identity information, the corresponding wireless zone width channel device is mapped with the current wireless service port, otherwise it is discarded. Finally, for each mapping relationship, a setting message is sent to the corresponding wireless zone width channel device through the wireless service port to reconfirm the identity, and the relationship is bound or discarded according to the verification result. The above three steps make full use of the port performance of the wired switching device, the sending and response of the second layer multicast, and the legality judgment and further confirmation of the identity information with unique identification of each wireless zone width channel device, accurately and efficiently realizing the automatic binding of the wired switching device and the wireless zone width channel device. Whether it is an existing hybrid network, a new group of hybrid networks or a hybrid network with newly added wireless zone width channel devices, the configuration can be efficiently completed through this solution.

[0028] 2. Regarding confirming the wireless management port of the wired switching device, a method is also provided in which the wireless zone bandwidth channel device actively sends a first perception response message to realize active mapping of the wireless zone bandwidth channel device and the wired switching device, thereby further improving the efficiency of automatic binding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The figure is a flow chart of the method of the present invention.

[0030] Figure 2 This is a connection diagram between wired switching equipment and each wireless zone wide channel equipment.

[0031] Figure 3 It is a connection relationship diagram between the wired switching equipment and each wireless zone wide channel equipment in a specific embodiment. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to examples, but the present invention is not limited to these examples.

[0033] A method for automatically binding a wired switching device and a wireless zone wide channel device, wherein the wired switching device comprises at least one wireless port, the number of the wireless zone wide channel device is at least one, and each wireless zone wide channel device self-organizes to form a wireless network, comprising the following steps:

[0034] (1) Confirm the wireless management port and wireless service port of the wired switching device:

[0035] For each wireless port, a first perception message is sent through the wireless port, and if the wireless port receives at least one first perception response message corresponding to the first perception message, the wireless port is set as a wireless management port, otherwise the wireless port is set as a wireless service port;

[0036] (2) Find the wireless zone bandwidth channel device mapped to each wireless service port:

[0037] 1) Close all wireless service ports;

[0038] 2) Open one of the wireless service ports as the current wireless service port, send a second perception message through the wireless management port of the wired switching device, at most one wireless zone width channel device responds to the second perception message, and provides a second perception response message corresponding to the second perception message to the wireless management port, wherein the second perception response message is filled with unique identity information of the wireless zone width channel device that responds;

[0039] The wired switching device judges the legitimacy of the identity information, and if so, maps the wireless zone bandwidth channel device corresponding to the identity information to the current wireless service port; otherwise, the identity information is discarded and the access of the wireless zone bandwidth channel device corresponding to the identity information is prohibited;

[0040] Close the current wireless service port;

[0041] 3) Open the next wireless service port as the current wireless service port and execute step 2) until all wireless service ports have completed step 2);

[0042] (3) Further confirm the mapping relationship and bind:

[0043] For each wireless service port of the wired switching device that has been mapped with a wireless zone bandwidth channel device, a setting message carrying the identity information corresponding to the wireless service port is sent to the wireless zone bandwidth channel device corresponding to the identity information. The corresponding wireless zone bandwidth channel device performs identity verification. If they are consistent, a setting response message corresponding to the setting message is returned. The wired switching device completes the automatic binding of the wireless service port and the wireless zone bandwidth channel device according to the setting response message, otherwise it abandons access to the wireless zone bandwidth channel device that fails to provide a setting response message. The flowchart of the present invention is as follows Figure 1 shown.

[0044] In a hybrid network, for each wireless zone-wide channel device, it is known that there is one wireless management port and one wireless service port, but the wireless service port and wireless management port of the wired switching device are not certain. What is known is that the wired switching device has multiple wireless ports, one of which must be a wireless management port, and the remaining wireless ports can be used as wireless service ports. The wireless management port of the wired switching device can connect to the wireless management ports of m (m ≥ 1) wireless zone-wide channel devices, while one wireless service port of the wired switching device can only connect to the wireless service port of one wireless zone-wide channel device. The correct binding relationship is as follows: Figure 2 The connection relationship between the wired switching device and each wireless zone width channel device is shown as follows: the wireless management port of the wired switching device is connected to the wireless management ports of wireless zone width channel device 1, wireless zone width channel device 2, and wireless zone width channel device m; the first wireless service port of the wired switching device is connected to the wireless service port of wireless zone width channel device 1; the second wireless service port of the wired switching device is connected to the wireless service port of wireless zone width channel device 2; and the mth wireless service port of the wired switching device is connected to the wireless service port of wireless zone width channel device m. Therefore, step (1) must be executed before further searching for mapping relationships and automatic binding can be performed.

[0045] The first perception message, the first perception response message, the second perception message, the second perception response message, the setting message, and the setting response message are all implemented through the layer 2 multicast message. The multicast MAC address of the layer 2 multicast message adopts 01-80-C2-00-50-2D, the protocol type is defined as 0x8590, and the message data field content adopts the fixed length message content.

[0046] The format of the Layer 2 multicast message is shown in Table 1:

[0047] Table 1 Layer 2 multicast message format

[0048]

[0049]

[0050] Specifically, D_MAC is a fixed value 01-80-C2-00-50-2D, S_MAC is the MAC address of the packet transmission network device (ie, the wired switching device), TYPE is a fixed value 0x8590, DATA is other detailed name fields in the Find command, and FCS is the checksum of the entire Ethernet Layer 2 multicast.

[0051] The definition table of the DATA field of the Find sensing message is shown in Table 2:

[0052] Table 2 Definition of DATA field in Find perception message

[0053]

[0054] MainVersion is the main version information, and the current version number is defined as 2; SubVersion is the subversion number, and the current subversion number is defined as 1; CommandType is the command type, Find perception message is defined as automatic discovery message, and automatic discovery message is defined as 1, Set setting message is defined as setting message, and setting command is defined as 2, Report reporting message is defined as reporting message, among which Find_Report search response message, search response command is defined as 3, Set_Report setting response message, and setting response command is defined as 4; Length is the length field of the subsequent field, which does not include itself and the previous field content. The content of the Length field in the Find command, Set command and Report command is fixed in length of 12 bytes, and the length of the Report reporting message increases with the R eport reported; LocalType is the device type of the wired switching device, and different wired switching devices have different port resources; LocalID is the MAC address of the wired switching device, which is unique and provided by the wired switching device to the wireless zone wide channel device. Subsequently, the wireless zone wide channel device uses the MAC address and the port number of the wired device to form the neighbor information of the wireless zone wide channel device; LocalPort is the port sequence number of the wired switching device, and the sequence number value works together with the MAC address of the wired switching device to provide wireless neighbor information to the wireless zone wide channel device; WirelessID is the ID information of the wireless zone wide channel device, and the legal ID of the wireless zone wide channel device ranges from 1 to 65535, indicating that the wireless network supports a maximum of 65535 wireless zone wide channel devices to form a network at the same time.

[0055] Only when the wireless management port and wireless service port of the wired switching device are in linkUp state (connectable state), can the wired switching device send Find perception messages to each wireless zone bandwidth channel device. When sending the Find perception message, the wired switching device fills 0 in WirelessID, indicating that the wired switching device does not know the ID value of the specific wireless zone bandwidth channel device, and the wireless zone bandwidth channel device replies after filling it through the Find_Report response message; when sending the Set command, the wired switching device fills a non-zero value (specific ID information) in this area, indicating that the current message is a message explicitly sent by the wired switching device to the wireless zone bandwidth channel device corresponding to the ID information. The Report message carries the ID information of the current wireless zone bandwidth channel device to identify the source wireless zone bandwidth channel device of the current Report message.

[0056] The definition of the Report message provided by the wireless zone broadband channel device is shown in Table 3:

[0057] Table 3 Detailed definition of each field in the perception report message data domain

[0058]

[0059] MainVersion is the main version information, and the current version number is defined as 2; SubVersion is the sub-version number, and the current sub-version number is defined as 1; CommandType is the command type, and Report reporting message is defined as reporting message, among which Find_Report search response message, search response command is defined as 3, Set_Report setting response message, and setting response command is defined as 4; the length of Report reporting message changes with the content of Report reporting; SwitchType, SwitchID, and SwitchPort are the information of wired switching devices announced by the wired switching device in the Find perception message, which are filled by the wireless zone broadband channel device and returned to the corresponding wired switching device. In the Report data packet, when there is no wired switching device information, SwitchType, SwitchID, and SwitchPort are filled with 0; WirelessID is the ID information of the current wireless zone broadband channel device filled by the wireless zone broadband channel device, indicating the identity of the current wireless zone broadband channel device.

[0060] The first perception message is specifically a Find perception message, i.e., a layer 2 multicast message Find command, and the first perception response message is a Find_Report perception response message, i.e., a Find_Report command, which contains the identity information of the wireless zone broadband channel device, i.e., ID information. The second perception message is the same as the first perception message, both of which are Find perception messages (using the Find command), and the second perception response message is the same as the second perception response message, both of which are Find_Report perception response messages (using the Find_Report command), the setting message is a Set setting message (using the Set command), and the setting response message is a Set_report setting response message (using the Set_report command).

[0061] When step (1) confirms whether the wireless port of the wired switching device is a wireless management port or a wireless service port, a Find perception message is sent through one wireless port, the WirelessID in the Find perception message is filled with 0, the wireless port that can receive the Find_Report response message is the wireless management port, and the others are wireless service ports.

[0062] In step (2), based on step (1), a wireless zone bandwidth channel device with a mapping relationship is searched for each wireless service port: only one wireless service port is opened at a time, and a Find perception message is sent through the wireless management port of the wired switching device. No or only one wireless zone bandwidth device provides a Find_Report perception response message to the wireless management port of the wired switching device, and the WirelessID of the Find_Report perception response message is filled with the ID information of the wireless zone bandwidth channel device that responds; in step 2), the wired switching device judges the legitimacy of the identity information (ID information), and The structure is as follows: the wired switching device pre-stores the identity information (ID information) of each wireless zone bandwidth channel device into a cache pool in advance. If the identity information (ID information) carried by the second perception response message (Find_Report perception response message) does not exist in the cache pool, the identity information (ID information) carried by the second perception response message (Find_Report perception response message) is deemed to be legal, and the wireless zone bandwidth channel device corresponding to the legal identity information is mapped to the current wireless service port. Otherwise, the identity information is discarded and access to the wireless zone bandwidth channel device corresponding to the identity information is prohibited.

[0063] In step (3), the mapping relationship is further confirmed and bound based on step (2): for the wireless service port of the wired switching device and the wireless zone bandwidth channel device that already have a mapping relationship, a Set setting message is sent through the wireless management port of the wired switching device. The Set setting message contains the ID information of the wireless zone bandwidth channel device. The wired switching device sends the Set setting message to the wireless zone bandwidth channel device corresponding to the ID information. After receiving the Set setting message, the wireless zone bandwidth channel device verifies the ID information with its actual ID information. If correct, it returns a Set_report setting response message to the wireless management port of the wired switching device, indicating that the mapping relationship is correct and can be automatically bound immediately. Otherwise, no Set_report setting response message is returned, and the wired switching device prohibits access to the wireless zone bandwidth channel device.

[0064] Furthermore, another method for confirming the wireless management port of the wired switching device in step (1) is:

[0065] When both the wireless service port and the wireless management port are in the linkup state (connectable state), for each wireless zone width channel device, the wireless zone width channel device actively sends a first perception response message (Find_Report perception response message) to the wired switching device; when one of the wireless ports of the wired switching device receives the first perception response message (Find_Report perception response message), the wireless port is set to the wireless management port pending state; the wired switching device sends a first perception message (Find perception message) through the wireless port set to the wireless management port pending state, as shown in FIG. If the wireless port in pending state receives the first perception response message (Find_Report perception response message) from the wireless zone width channel device, the wireless port set as the wireless management port pending state is set as the wireless management port state; if the wired switching device sends the first perception message (Find perception message) through the wireless port set as the wireless management port pending state three times in a row, and the wireless port set as the wireless management port pending state does not receive the first perception response message (Find_Report perception response message) from the wireless zone width channel device, the wireless port is adjusted from the wireless management port pending state to the unknown port state. This method for determining the wireless management port is applicable to when a new wireless zone width channel device is added, the wireless zone width channel device actively makes a binding request, rather than passively waiting for the wired switching device to send a Find perception message, which can improve the efficiency of automatic binding.

[0066] Furthermore, another method for confirming the wireless service port of the wired switching device in step (1) is:

[0067] For each wireless port, a first perception message (Find perception message) is sent through the wireless port. If another wireless port receives the first perception message (Find perception message, not Find_Report perception response message), the other wireless port is set as a wireless service port.

[0068] Furthermore, there is at least one wired switching device, and each wired switching device is cascaded through a wired management port; one wired switching device corresponds to one wireless network; for each wired switching device, the wired switching device is automatically bound to each wireless zone width channel device in the corresponding wireless network by executing steps (1)(2)(3).

[0069] The automatic binding method is described by taking a wired switching device and two wireless zone wide channel devices as an example. The two wireless zone wide channel devices form a wireless network by themselves. Figure 3 As shown. The specific binding method is:

[0070] (1) For wireless ports Eth-0-1, Eth-0-2, and Eth-0-10, a Find perception message is sent through Eth-0-1. If Eth-0-1 receives a Find_Report perception response message, Eth-0-1 is set as a wireless management port, otherwise it is set as a wireless service port. The same operation is performed on Eth-0-2 and Eth-0-10 in turn until a wireless management port is found. The present invention describes the following steps with Eth-0-1 and Eth-0-2 as wireless service ports and Eth-0-10 as a wireless management port.

[0071] (2) Close Eth-0-1 and Eth-0-2, open Eth-0-1, send a Find perception message through Eth-0-10, and no or only one wireless zone bandwidth channel device (such as wireless zone bandwidth channel device 1) provides a Find_Report perception response message to Eth-0-10. The Find_Report perception response message is filled with the ID information of the wireless zone bandwidth channel device (such as 10); the wired zone bandwidth channel device determines whether 10 is legal. If it is legal, Eth-0-1 is mapped with the wireless zone bandwidth channel device 1;

[0072] Close Eth-0-1, open Eth-0-2, and confirm the mapping between Eth-0-2 and wireless zone bandwidth channel device 2 (ID is 20).

[0073] (3) The wired switching device sends a Set message (including certain ID information, such as 10) through Eth-0-10. After receiving the Set message, wireless zone bandwidth channel device 1 takes out 10 and verifies it with its own ID information. If they are consistent, it sends a Set_report response message to Eth-0-10 to confirm that the mapping relationship is correct and can be automatically bound. If they are inconsistent, no Set_report response message is sent, and the wired switching device will discard 10, prohibiting wireless zone bandwidth channel device 1 from accessing the hybrid network. The same operation is performed on wireless zone bandwidth channel device 2 to complete the mapping and automatic binding.

Claims

1. A method for automatically binding a wired switching device and a wireless zone wide channel device, wherein the wired switching device has at least one wireless port, the wireless zone wide channel device is at least one, and each wireless zone wide channel device self-organizes to form a wireless network, characterized in that: The steps include: (1) Confirm the wireless management port and wireless service port of the wired switching device: For each wireless port, a first perception message is sent through the wireless port, and if the wireless port receives at least one first perception response message corresponding to the first perception message, the wireless port is set as a wireless management port, otherwise the wireless port is set as a wireless service port; (2) Find the wireless zone bandwidth channel device mapped to each wireless service port: 1) Close all wireless service ports; 2) Open one of the wireless service ports as the current wireless service port, send a second perception message through the wireless management port of the wired switching device, at most one wireless zone width channel device responds to the second perception message, and provides a second perception response message corresponding to the second perception message to the wireless management port, wherein the second perception response message is filled with unique identity information of the wireless zone width channel device that responds; The wired switching device judges the legitimacy of the identity information, and if so, maps the wireless zone bandwidth channel device corresponding to the identity information to the current wireless service port; otherwise, the identity information is discarded and the access of the wireless zone bandwidth channel device corresponding to the identity information is prohibited; Close the current wireless service port; 3) Open the next wireless service port as the current wireless service port and execute step 2) until all wireless service ports have completed step 2); (3) Further confirm the mapping relationship and bind: For each wireless service port of the wired switching device that has been mapped with a wireless zone bandwidth channel device, a setting message carrying the identity information corresponding to the wireless service port is sent to the wireless zone bandwidth channel device corresponding to the identity information. The corresponding wireless zone bandwidth channel device performs identity verification, and if they are consistent, returns a setting response message corresponding to the setting message. The wired switching device completes automatic binding of the wireless service port and the wireless zone bandwidth channel device according to the setting response message, otherwise it abandons access to the wireless zone bandwidth channel device that fails to provide a setting response message.

2. The method for automatically binding a wired switching device and a wireless zone wide channel device according to claim 1, characterized in that: Another method for confirming the wireless management port of the wired switching device in step (1) is: For each wireless zone width channel device, the wireless zone width channel device actively sends a first perception response message to the wired switching device; when one of the wireless ports of the wired switching device receives the first perception response message, the wireless port is set to a wireless management port pending state; The wired switching device sends a first perception message through the wireless port set to the wireless management port pending state, and if the wireless port set to the wireless management port pending state receives a first perception response message from the wireless zone wide channel device, the wireless port set to the wireless management port pending state is set to the wireless management port state; If the wired switching device sends the first perception message three times in a row through the wireless port set to the wireless management port pending state, and the wireless port set to the wireless management port pending state does not receive the first perception response message from the wireless zone wide channel device, the wireless port is adjusted from the wireless management port pending state to the unknown port state.

3. The method for automatically binding a wired switching device and a wireless zone wide channel device according to claim 1, characterized in that: Another method for confirming the wireless service port of the wired switching device in step (1) is: For each wireless port, a first perception message is sent through the wireless port. If another wireless port receives the first perception message, the other wireless port is set as a wireless service port.

4. The method for automatically binding a wired switching device and a wireless zone wide channel device according to claim 1, characterized in that: There is at least one wired switching device, and each wired switching device is cascaded through a wired management port; One wired switching device corresponds to one wireless network; for each wired switching device, the wired switching device is automatically bound to each wireless zone width channel device in the corresponding wireless network by executing steps (1), (2), and (3).

5. The method for automatically binding a wired switching device and a wireless zone wide channel device according to claim 1, characterized in that: In step 2), the wired switching device judges the legitimacy of the identity information, specifically: the wired switching device pre-stores the identity information of each wireless zone bandwidth channel device in a cache pool in advance. If the identity information carried by the second perception response message does not exist in the cache pool, the identity information carried by the second perception response message is deemed to be legal, and the wireless zone bandwidth channel device corresponding to the legal identity information is mapped to the current wireless service port. Otherwise, the identity information is discarded and access to the wireless zone bandwidth channel device corresponding to the identity information is prohibited.

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