CN107484227B - Wifi networking multi-hot-spot control communication method - Google Patents

Wifi networking multi-hot-spot control communication method Download PDF

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Publication number
CN107484227B
CN107484227B CN201710779973.3A CN201710779973A CN107484227B CN 107484227 B CN107484227 B CN 107484227B CN 201710779973 A CN201710779973 A CN 201710779973A CN 107484227 B CN107484227 B CN 107484227B
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data
protocol
control communication
creating
wifi
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CN107484227A (en
Inventor
张寿权
张玉龙
赵建国
刘政
李悦磊
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Tianjin Zanpu Technology Co ltd
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Tianjin Zanpu Technology Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Application independent communication protocol aspects or techniques in packet data networks
    • H04L69/16Transmission control protocol/internet protocol [TCP/IP] or user datagram protocol [UDP]
    • H04L69/161Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
    • H04L69/162Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Application independent communication protocol aspects or techniques in packet data networks
    • H04L69/16Transmission control protocol/internet protocol [TCP/IP] or user datagram protocol [UDP]
    • H04L69/163Adaptation of TCP data exchange control procedures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Application independent communication protocol aspects or techniques in packet data networks
    • H04L69/16Transmission control protocol/internet protocol [TCP/IP] or user datagram protocol [UDP]
    • H04L69/169Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Abstract

The invention provides a wifi networking multi-hotspot control communication method, which comprises the following steps: designing and formulating an AP-AC discovery protocol; simultaneously creating a TCP and binding ports; creating UDP and binding ports; creating epoll monitoring trigger events and executing corresponding command operations; establishing a two-dimensional table, wherein the DATA related to PING and DATA protocols of the mobile phone comprises all current information of the AP and the PC; the corresponding foreground displays the current equipment state information in real time; and changing the issuing configuration and restarting the upgrading function in real time. The invention has the beneficial effects that: the network card is improved, even the network card is completely paralyzed, the number of the routers is limited, the routers mutually rob channels and other conditions, the AC is uniformly managed, the AP is plugged and used, the load is balanced, and the network management system has the advantages of rapidness, reliability, stability, automatic adjustment of power and channels, flexible deployment and the like.

Description

Wifi networking multi-hot-spot control communication method
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a wifi networking multi-hotspot control communication method.
Background
In the network system is built by routers, the following problems often exist, one error occurs, the problem of troubleshooting is needed to be carried out on each wireless access point, the problem of unified management and control and audit can not be carried out on the network, sometimes, a network card can appear, even the phenomenon of complete paralysis can occur, the number of routers in the system is limited, and channels can be mutually robbed among the routers.
The AC serving as a wireless access controller can access and gather data from different APs connected with the AC, and simultaneously performs control functions such as configuration management and identity authentication of a wireless terminal on AP equipment, but the structure of the AC has hidden danger, the lower end of the AC is required to be completely processed by the AC, and the function is single.
At present, a control protocol between the most core AC and the AP in a WIFI networking structure product has no recognized international standard, and different proprietary protocols are adopted by manufacturers in implementation, so that AC and AP products of different manufacturers cannot be intercommunicated at all. This problem is not a serious problem for enterprise-level networks, but it presents a significant potential for carrier-level networks.
Disclosure of Invention
In view of this, the present invention aims to provide a wifi networking multi-hot-point control communication method, so as to solve the above-mentioned problems, and implement functions of AC unified management, AP plug and play, load balancing, reliable and stable network, channel automatic tuning, and the like.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a wifi networking multi-hot-spot control communication method comprises the following steps:
A. designing and formulating an AP-AC discovery protocol, wherein the AC is a wireless access controller, and the AP is a wireless access point;
B. simultaneously creating a TCP and binding ports;
C. creating UDP and binding ports;
D. creating epoll monitoring trigger events and executing corresponding command operations;
E. establishing a two-dimensional table, wherein the DATA related to PING and DATA protocols of the mobile phone comprises all current information of the AP and the PC;
F. the corresponding foreground displays the current equipment state information in real time;
G. and changing the issuing configuration and restarting the upgrading function in real time.
Further, the AP-AC discovery protocol includes:
the AC provides DHCP to allocate ip addresses for the AP;
acquiring PING protocol data in an AP client, and reporting the AC in real time, wherein the AC comprises an MAC address of the AP, an IP address of the AP, an SSID (service set identifier) in WIFI (wireless fidelity), a channel, dbm, an uplink total flow and a downlink total flow;
acquiring DATA of a DATA protocol in an AP client, real-time PC login information in a mobile phone arp file, and reporting an AC in real time, wherein the AC comprises an MAC address of the AP, an MAC address of a mobile terminal and an IP address;
the SET protocol analysis and command execution in the AP client execute SSID change, encryption type setting, password modification, wifi hotspot hiding and channel modification;
and the control protocol in the AP client analyzes and executes the command, and executes the functions of restarting and upgrading.
Further, the AC can discover 254 APs at most simultaneously.
Further, in the step E, duplicate removal screening and zombie node removal are performed on the two-dimensional table data.
Furthermore, the AP client and the server are connected through socket set signature in a communication mode.
Further, the server can accommodate 254 AP data requests simultaneously.
Compared with the prior art, the wifi networking multi-hot-spot control communication method has the following advantages:
(1) the wifi networking multi-hotspot control communication method improves the conditions that a network card is even completely broken down, the number of routers is limited, the routers mutually seize channels and the like, so that the AC is uniformly managed, the AP is plugged and used, the load is balanced, and the method has the advantages of rapidness, reliability, stability, automatic adjustment of power and channels, flexible deployment and the like;
(2) in the wifi networking multi-hotspot control communication method, a socket set is adopted for signing connection in a communication mode, a TCP protocol is adopted for connection transmission, the TCP is a connection-oriented and reliable transmission layer protocol, the TCP protocol is established on an unreliable network layer IP protocol, the IP cannot provide any reliability mechanism, and the reliability of the TCP is completely realized by the self; the most basic reliability techniques employed by TCP are acknowledgment and timeout retransmission, flow control, and hierarchical relationship of TCP protocol to other protocols.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of an AC client according to an embodiment of the present invention;
fig. 2 is a flow chart of a server according to an embodiment of the present invention;
fig. 3 is a flowchart of an AC interface according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and fig. 2, a wifi networking multi-hotspot control communication method includes the following steps:
A. designing and formulating an AP-AC discovery protocol;
B. simultaneously creating a TCP and binding ports;
C. creating UDP and binding ports;
D. creating epoll monitoring trigger events and executing corresponding command operations;
E. establishing a two-dimensional table, wherein the DATA related to PING and DATA protocols of the mobile phone comprises all current information of the AP and the PC;
F. the corresponding foreground displays the current equipment state information in real time;
G. and changing the issuing configuration and restarting the upgrading function in real time.
The AP-AC discovery protocol comprises:
the AC provides DHCP to allocate ip addresses for the AP;
acquiring PING protocol data in an AP client, and reporting the AC in real time, wherein the AC comprises an MAC address of the AP, an IP address of the AP, an SSID (service set identifier) in WIFI (wireless fidelity), a channel, dbm, an uplink total flow and a downlink total flow;
acquiring DATA of a DATA protocol in an AP client, real-time PC login information in a mobile phone arp file, and reporting an AC in real time, wherein the AC comprises an MAC address of the AP, an MAC address of a mobile terminal and an IP address;
the SET protocol analysis and command execution in the AP client execute SSID change, encryption type setting, password modification, wifi hotspot hiding and channel modification;
and the control protocol in the AP client analyzes and executes the command, and executes the functions of restarting and upgrading.
The AC can discover 254 APs at most simultaneously.
And E, performing duplicate removal screening and zombie node removal on the two-dimensional table data to ensure that no overflow exists in the memory.
And the AP client and the server are connected in a communication way through a socket set signature.
The server can simultaneously accommodate 254 AP data requests, and can ensure wide-range roaming coverage.
As shown in fig. 3, the protocols included in this embodiment include PING protocol, DATA protocol, configuration delivery protocol, control delivery protocol and error information feedback protocol,
the PING protocol is transmitted in the form of a data packet, wherein a flag bit is PING, the contained contents comprise an MAC address of an AP, an IP address allocated to the AP, an SSID of WIFI at an AP end, a channel of the WIFI at the AP end, total uplink flow, total downlink flow, a security encryption mode and a password format, when the AC and the AP are powered on, the AC acquires a lower IP address allocated to an upper network, then the IP address is allocated to the AP under the flag, the AP can carry out communication connection on the AC, heartbeat is carried out every 5s, and collected related information is reported to the AC to obtain PING information;
the DATA protocol flag bit is DATA, the DATA protocol flag bit comprises the MAC address of the AP, the MAC address of a mobile terminal connected with the AP and an IP address, the AP acquires relevant information of the AP, and the DATA information is reported after each PING;
the configuration issuing protocol, namely the SET protocol, is characterized in that the flag bit is SET, the contained contents comprise SSID (service SET identifier), channel, encryption mode and specific password of WIFI (wireless fidelity), and the AC issues the configuration through a Web interface, so that the WIFI configuration of a single AP and all APs under the flag can be changed;
the CONTROL issuing protocol, namely a CONTROL protocol, has a zone bit of CONTROL, and contains a restart issuing strategy and an upgrade issuing strategy which are used for controlling the restart and upgrade of a single AP or all APs under the AC flag;
the error information feedback protocol may send error information to determine a specific problem when there is a problem in the AC communication with the AP.
In this embodiment, the AP is an abbreviation of Access Point, and indicates a wireless Access Point, which is used for a wireless switch of a wireless network and is also a core of the wireless network. The wireless AP is an access point for a mobile computer user to enter a wired network, is mainly used in broadband families, buildings and parks, and can cover dozens of meters to hundreds of meters.
The AC is an abbreviation of Wireless Access Point Controller, indicates a Wireless Controller, is a network device, is used to centralize and control Wireless APs, is a core of a Wireless network, is responsible for managing all Wireless APs in the Wireless network, and includes: configuration issuing, relevant configuration parameter modification, radio frequency intelligent management, access security control and the like.
TCP is an abbreviation of Transmission Control Protocol, which indicates a Transmission Control Protocol, and is a connection-oriented, reliable transport layer communication Protocol based on a byte stream. TCP is intended to accommodate layered protocol hierarchies that support multiple network applications. Reliable communication services are provided by means of TCP between pairs of processes in host computers connected to different but interconnected computer communication networks.
UDP is an abbreviation of User Datagram Protocol, and represents a User Datagram Protocol, and provides a method for an application program to send an encapsulated IP packet without establishing a connection.
epoll is a function in the character device driver in Linux, the Linux kernel is an improved function for processing large-batch file descriptors, and is an enhanced version of multiplexing IO interface select/poll under Linux, which can significantly improve the system CPU utilization rate when a program is only slightly active in a large number of concurrent connections.
PING is an abbreviation of Packet Internet Groper, an Internet Packet explorer, a program for testing network connection volume. Ping is a service command working in the application layer of the TCP/IP network architecture, and mainly sends an internet message control protocol request message to a specific destination host, testing whether the destination can reach and know the relevant state.
DATA represents DATA such as signal strength, IP address, etc. in the client.
In this embodiment, the interface provides the firmware of the VAC routing device, and after the firmware is flushed to the route, the user can control and use the web page for this function, where the interface is designed as follows:
routing two-dimensional table node scanning interface: void track _ free _ AllNode (struct stAp _ list _ Type pAp)
Wherein, the input parameters include struct stAp _ list _ Type pAp and Ap node information;
traversing and releasing the lost connection node interface: char Travel _ free _ ZoomNode (struct stAp _ list _ Type pAp)
Wherein, the input parameters include struct stAp _ list _ Type pAp and Ap node information;
interface json analytic interface: char Json _ parse (char src, dst)
Wherein, the input parameter is charsrc, json character string, the output parameter is chardst, the analyzed protocol format character string;
the chip network initialization interface is as follows: void __ initadm 5120_ soc _ init (void)
No input/output parameter;
the erase flash callback interface is: static void erase _ callback (struct erase _ info done)
Wherein, the input parameter is struct erase _ info × done, and the related information of the erase block;
string contrast interface Int Json & tramp _ strcmp _ value in Json analysis (struct Json & tram & str state)
Inputting parameters struct jsonnpase _ state and const char str;
detecting and inserting ap table interface char Check _ insert _ Aplist (struct stPing _ Type pstPoint, int sockfd)
Wherein the parameter struct stPing _ Type _ pstPing, the received ping frame format information and the parameter int sockfd, and the socket fd are connected;
nanosecond delay program interface void adm5120_ delay (u32 ns)
Where the parameter is u32 ns, indicating the number of nanoseconds.
The network system related to the wifi networking multi-hotspot control communication method based on the embodiment comprises a mobile end user, an AC (access controller) and an AP (access point), wherein the AC is deployed in the existing network architecture as a bypass/trunk mode, the AP of the whole network is uniformly controlled through the AC, and a POE (power over Ethernet) switch is adopted to supply power through a network cable, so that the traditional power supply mode is broken, and the fire problem caused by pulling a power line is avoided. In a wireless networking environment, the same management and control of all the APs in the intranet can be realized by only one AC, and each AP in the intranet tries to adjust the configuration of the AP so that the AP is in an optimal state to adapt to the actual environment. The AC can automatically send configuration information to the AP to realize the zero configuration access of the AP. The AP is plug and play, and construction configuration steps are reduced. The AC controls the amount of the brought devices of each adjacent AP, the load balance based on the STA (mobile terminal equipment connected to the wireless access point) can balance the access load pressure of each AP, and the problem that the whole network rate is reduced because a certain STA is far away from the AP can be effectively solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (5)

1. A wifi networking multi-hotspot control communication method is characterized by comprising the following steps:
A. designing and formulating an AP-AC discovery protocol;
the AP-AC discovery protocol comprises:
the AC provides DHCP to allocate ip addresses for the AP;
acquiring PING protocol data in an AP client, and reporting the AC in real time, wherein the AC comprises an MAC address of the AP, an IP address of the AP, an SSID (service set identifier) in WIFI (wireless fidelity), a channel, dbm, an uplink total flow and a downlink total flow;
acquiring DATA of a DATA protocol in an AP client, real-time PC login information in a mobile phone arp file, and reporting an AC in real time, wherein the AC comprises an MAC address of the AP, an MAC address of a mobile terminal and an IP address;
the SET protocol analysis and command execution in the AP client execute SSID change, encryption type setting, password modification, wifi hotspot hiding and channel modification;
a control protocol in the AP client analyzes and executes a command, and executes restarting and upgrading functions;
B. simultaneously creating a TCP and binding ports;
C. creating UDP and binding ports;
D. creating epoll monitoring trigger events and executing corresponding command operations;
E. establishing a two-dimensional table, wherein the DATA related to the PING and DATA protocols of the mobile phone contains all current information of the AP and the AC;
F. the corresponding foreground displays the current equipment state information in real time;
G. and changing the issuing configuration and restarting the upgrading function in real time.
2. The wifi networking multi-hotspot control communication method according to claim 1, characterized in that: the AC can discover 254 APs at most simultaneously.
3. The wifi networking multi-hotspot control communication method according to claim 1, characterized in that: and E, carrying out duplicate removal screening and zombie node removal on the two-dimensional table data.
4. The wifi networking multi-hotspot control communication method according to claim 1, characterized in that: and the AP client and the server are connected in a communication way through a socket set signature.
5. The wifi networking multi-hot-spot control communication method according to claim 4, characterized in that: the server can accommodate 254 AP data requests simultaneously.
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