CN102118527A - Voice over Internet phone (VoIP) equipment management system capable of traversing private networks and method thereof - Google Patents
Voice over Internet phone (VoIP) equipment management system capable of traversing private networks and method thereof Download PDFInfo
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Abstract
The invention discloses a voice over Internet phone (VoIP) equipment management system capable of traversing private networks and a communication method thereof. The VoIP equipment management system comprises a hyper text transport protocol (HTTP) server arranged at a public network and at least one piece of terminal equipment arranged at the private network, wherein the terminal equipment comprises an adaptation processing module; when started, the terminal equipment transmits a request of establishing transmission control protocol (TCP) connection to the HTTP server by the adaptation processing module; and after the connection is established, a registration message is transmitted to the HTTP server at a predetermined time in an idle period of time by the adaptation processing module. By the system and the method thereof, the VoIP terminal equipment in different private networks can be managed at the same time.
Description
Technical field
The present invention relates to a kind of VoIP (Voice over IP, Internet Protocol telephone) equipment management system of penetrable private network, also relate to the communication means that in this VoIP equipment management system, uses simultaneously, belong to the Internet telephony field.
Background technology
Along with developing rapidly of VoIP market, VoIP becomes the main flow consumption service gradually.This trend will promote telephone service and shift on a large scale to the pattern of equipment to phone, and will along with low-cost, have the VoIP equipment that enriches characteristic and release and obtain to widely apply.But, if working by manpower, these increasing VoIP equipment manage, under the situation that equipment disperses, quantity is bigger, be difficult to effectively manage and control.Therefore, a lot of clients have proposed VoIP equipment is carried out the demand of the network management system of concrete management.
The VoIP network management system is mainly finished the work that administers and maintains of polytype VoIP equipment in the network.Particularly, divide on the slave unit type, comprise switching plane, Tandem Gateway, IAD, MCU etc., comprise different protocol entities such as SIP, H323 from agreement, the work that administers and maintains of these VoIP equipment.The equipment of user side, have in network that quantity is big, characteristics wide, that pass through based on the private network under dynamic private network IP, the NAT distribute, if directly adopting the soft exchanging network Element management system manages concentratedly the equipment of the whole network, then will certainly give soft exchanging network Element management system build-up of pressure and make it be exposed to user side, reduce the fail safe of system, can not accomplish the multi-stage user Decentralization.Therefore need to adopt special management system to come VoIP equipment is managed concentratedly.
At present, most of VoIP equipment is all supported the processing of http protocol.The HTTP of standard is based on Transmission Control Protocol, and TCP does not support penetrating through private network.Promptly, if the server of HTTP is under private network, the user side of HTTP is at public network or other private networks, the user side of this HTTP just can not be visited the server of this HTTP, if the corresponding terminal equipment of http protocol of supporting is in private network, perhaps with the user side of HTTP under different private networks, this terminal equipment just can not be managed accordingly.
In number of patent application is 200410086279.6 Chinese invention patent application, provide a kind of VoIP of realization the system and method for professional pass through private net.This technical scheme mainly is to set up tunnel server end and tunnel client end in network respectively, and send registration message by tunnel client end and tunnel server end the address information of private network is reported to tunnel server, and again the address information of each private network is handed down to each tunnel client end respectively by the tunnel server end, like this, the VoIP business of private network just can passing through NAT/NAPT by public network and other private user intercommunications, and need not NAT/NAPT is configured.This technical scheme adopts the technology based on the tunnel to realize address information intercommunication between each private network (local area network (LAN)), but the technical problem that still not have solution that the VoIP terminal equipment in the different private networks is managed simultaneously.
Summary of the invention
Primary technical problem to be solved by this invention is to provide a kind of VoIP equipment management system of penetrable private network.
Another one technical problem to be solved by this invention is to provide a kind of communication means that uses in above-mentioned VoIP equipment management system.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of VoIP equipment management system of penetrable private network comprises that the http server of being located at public network and at least one be located at the terminal equipment of private network, it is characterized in that:
Described terminal equipment comprises the adaptation processing module, and described terminal equipment sends to described http server by described adaptation processing module and to set up the TCP connection requests when starting; After connecting, by described adaptation processing module in idle periods regularly to described http server timed sending registration message.
Described http server has predefined network address, and described terminal equipment is provided with the address and the port of described http server in advance.
Be provided with database in the described http server, be used for the corresponding socket that described terminal equipment IP address, MAC Address, current management channels number are connected with TCP of preserving.
Described VoIP equipment management system also comprises the browser that is connected with described http server, transmits HTTP message between described browser and the described http server; Transmit between described http server and the described terminal equipment, be packaged with the MAC Address of described terminal equipment and in user data area, be packaged with the message of HTTP message in a field.
A kind of communication means that uses in above-mentioned VoIP equipment management system is characterized in that:
Described terminal equipment is initiated the request of setting up TCP to the described address of described http server and described port when starting; After setting up the TCP connection, at idle period of time timed sending registration message;
The user sends HTTP message to described http server at public network or in private network;
Described http server is handled and is encapsulated described HTTP message, and the message after the transmission encapsulation is to described terminal equipment;
The message of described terminal equipment after to described encapsulation is resolved, and sends response message through encapsulation to described http server;
Described http server carries out decapsulation after reading described response message through encapsulation, sends http response message to described user.
Wherein, being connected the message that transmits by described TCP between described http server and the described terminal equipment, is to be packaged with the MAC Address of described terminal equipment and to be packaged with the message of HTTP message in user data area in a field; The message that transmits between described http server and the described user is HTTP message.
Described http server according to the described IP address of described terminal equipment, inquires the described MAC Address of described terminal equipment and the socket that TCP connects when described terminal equipment sends message in the described database of described http server;
Described http server is encapsulated into described MAC Address in described the field of described message, the message that will have the HTTP request msg is encapsulated into the described user data area field of described message, the socket that connects according to described TCP sends to described terminal equipment with packaged described message again.
Described terminal equipment is when described http server sends message, described MAC Address is encapsulated in the field of described message, the message that will have http response is encapsulated into the user data area field of described message, the socket that the TCP that safeguards by described adaptation processing module connects sends to described http server with packaged described message.
Described http server adds a plurality of described terminal equipment of same device type or protocol type in the same territory to; Public network IP, private network IP and MAC Address according to a plurality of described terminal equipments in the described territory encapsulates then, will send to described a plurality of described terminal equipments from user's HTTP message; Described terminal equipment carries out sending response message after the respective handling; Then, described http server sends to described user after all described response messages are gathered.
Utilize VoIP equipment management system provided by the present invention and method thereof, can the VoIP terminal equipment in the different private networks be managed simultaneously, effectively satisfied the professional flourish business demand of bringing of VoIP.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the overall structure schematic diagram of the VoIP equipment management system of penetrable private network provided by the present invention;
Fig. 2 is in this VoIP equipment management system, sets up the TCP passage to realize the process schematic diagram of penetrating through private network from private network;
Fig. 3 is in this VoIP equipment management system, realizes the system schematic of universal information flow process.
Embodiment
As shown in Figure 1, the VoIP equipment management system of penetrable private network provided by the present invention comprises http server and a plurality of terminal equipment of being located at private network of being located at public network, and network manager (user) directly manages terminal equipment by http server.
The present invention proposes the user side of the HTTP in the public network, adopts specific network management path to transmit HTTP, and increases the adaptation processing module to HTTP in terminal, can set up the network management system of simple VoIP.This scheme is different from general HTTP Proxy function again, because the present invention can realize the terminal under different private networks time management.
The adaptation processing module that need to increase terminal equipment be because common terminal equipment in web-based management as http server, so the connection of TCP is set up to terminal equipment from other Client, terminal equipment is TCP Server at articulamentum.And the present invention is in order to solve the problem of penetrating through private network, the connection of TCP is set up to other http servers from terminal equipment, that is, be as the Client of TCP end at the articulamentum terminal equipment, handle but remain as http server at the application layer terminal equipment.Therefore, this adaptation processing module mainly is that the management channels of terminal is set up and safeguarded, and HTTP message is carried out simple verification and filtration.
Be provided with database in the http server, be used for the socket that the corresponding public network IP address of preserving terminal equipment, MAC Address, current management channels number are connected with TCP.For a plurality of private net terminal users under the same NAT, public network IP is identical usually, and MAC Address is unique parameter of determining this terminal.The terminal use reports http server by registration packet with self MAC Address, and database can be inquired about other attributes of this terminal by MAC Address, information such as the socket that connects as management channels number, TCP, device type, software version.Management channels number is an index of management channels, can be login state or unregistered state by the state of this management channels searching and managing passage.Transmission to bottom data is to realize by the socket that TCP is connected with reception.
Http server has predefined network address, and terminal equipment is provided with the address and the port of http server in advance.As shown in Figure 2, terminal equipment initiatively sends to http server by the adaptation processing module and to set up the TCP connection requests when starting; After the response that receives http server, to http server timed sending registration message.Http server is after TCP connect to set up, to channel allocation management channels number, and with its is kept in database corresponding with terminal equipment IP address.In other words, the initial phase of terminal equipment when system start-up set up TCP as the HTTP client to http server and connected, form the management channels between network management system and network element, and after startup by the timed sending registration message, safeguard the TCP passage between http server and terminal equipment and terminal equipment information upgraded in time.
Connect because the passage of webmaster all is the TCP that at first sets up to the http server side from the VoIP terminal, and http server normally is placed in the public network; Transmit HTTP message between the browser of webmaster and the http server, transmit HTTP message between http server and the terminal equipment through encapsulation, therefore can penetrating NAT, realization is to the management of terminal under a plurality of private networks, can realize that also to the terminal unit management on the public network, promptly http server can be managed the VoIP terminal equipment that is under the different network environments.
The network manager can long-range sign in on the http server by the PC browser under public network or the private network manage, the network manager can pass through network general browser (MicrosoftInternet Explorer or Firefox) login http server, because the browser side, can be passed the http server in the NAT visit public network as the client of http protocol.
Http server is as the agency between network manager and the terminal equipment, safeguard and a plurality of network element network management paths, and a plurality of net element informations (comprising network element IP, MAC, device type, software version etc.), utilize existing network management path, the HTTP that initiates according to the network manager asks, again encapsulate and transmit this HTTP and ask, and the response message parsing back removal encapsulation that equipment returns is sent to network manager place browser to terminal equipment.
By the network management system that above-mentioned mechanism constitutes, can realize the terminal management of VoIP and the territory that a plurality of terminals are formed are managed.The terminal management function can realize the inquiry to single SOT state of termination, i.e. whether inquiry is online, the real-time parameter setting, and the upgrading of software automatic/hand, common parameters is upgraded automatically, and far-end restarts.
By the unit that the territory limits the terminal equipment of accepting management is set, can carry out batch operation to the terminal that belongs in the same territory.
The basic operation in territory comprises increase, deletion, upgrading and the parameter configuration in territory; The scope definition in territory is to distinguish according to domain name, device type, protocol type, the device type in same territory is identical with protocol type, different territories can have identical device type and protocol type, but possibility software version or common configuration attribute are different.
Network management path by providing between http server and VoIP terminal equipment can provide the alarm (trap) of terminal and the tracking and the debug function of the system failure in addition.When device fails, can report fault message to NM server; When equipment work was undesired, the keeper can determine next step operation by the fault message of checking this equipment that server is preserved.When needs are long-range equipment is transferred when surveying, can be by on network management interface, opening equipment TRACE information, equipment can output to the TRACE information that produces in the running on the NM server, surveys and safeguards so that the plant maintenance personnel transfer equipment.
The network manager can be in private network, also can be at public network by browser (internetexplorer/Firefox) visit http server, this http server has predefined network address, can realize that the various device that http server is managed manages by this network address.Below this is launched detailed explanation.
1. the registration of penetrating through private network scheme and equipment
The present invention realizes penetrating through private network by the mode of initiating to set up the TCP passage from private network, by this permanent connection tunnel, message is transmitted, and the function that penetrates when can be implemented in different private network.
Terminal equipment needs the address and the port of pre-configured corresponding NM server under the private network that manages for needs, and terminal equipment is initiated the request of setting up TCP at this address and port, and transmitting apparatus registration message periodically keeps and safeguards that this is connected.
Common message format between http server and the terminal equipment is referring to table 1.The MsgType field of registration message is 0x01, and registration reply message MsgType field is 0x81.NM server is safeguarded the relevant information of network element by registration message, comprises network element IP, MAC Address, and device type, software versions etc. can be preserved net element information by database, realize the management to the network element device under the different private networks.
2. universal information flow process
As shown in Figure 3, network manager (user) adopts general browser at public network or in private network, for example internet explorer or Firefox, and the HTTP message that sends standard is to http server.Http server utilizes the IP address to pass through Query Database, obtain the socket that the MAC Address of purpose terminal equipment, current management channels number are connected with TCP, MAC Address is encapsulated on the HTTP message of described standard, the socket that connects according to TCP sends.Particularly, http server utilizes the public network IP address of terminal equipment, in the data base querying of the http server MAC Address to terminal equipment, also obtains socket that field such as device type, software version and TCP connect and current management channels number.Http server is encapsulated into MAC Address and device type etc. in the message header shown in the table 1, the message that user's configuration, terminal software upgrading etc. is had the HTTP request msg is encapsulated into the Data field, and the socket that connects of the TCP of the terminal equipment that obtains according to inquiry sends to described terminal equipment with packaged message again.Message after the encapsulation that the http server process is handled and the transmission of encapsulation back is privately owned is to the terminal equipment under each private network.Terminal equipment is to resolving from the message after the encapsulation of HTT server.Terminal equipment is encapsulated into the information such as MAC Address, device type, type of message of self in the message header of table 1, the message that will have http response is encapsulated into the Data field, the socket that the TCP that safeguards by terminal adaptation processing module connects sends to described http server with packaged message.After http server read, decapsulation sent standard HTTP to answering message to each user browser.
For example:
The network manager need be configured from the resource information of certain network element of webmaster page inquiry or to certain network element terminal equipment, send GET and ask http server, http server is according to user's selected network element, the data query library information, the IP address that comprises network element, MAC Address etc., mode according to table 1 encapsulates this message, the socket that the current management channels of inquiry network element number is connected with TCP, packaged message (msgType is 0x83) is sent to the network element under the private network, after network element device is received this message, carry out verification after, read the Data field of this message, just the http protocol of standard is handled, then with response message (msgType is 0), send it back http server after also encapsulating according to the mode of table 1, http server is according to the IP address of response message, MAC Address, and CheckSum inquiring user client-side information, remove outer encapsulation after, the response message of the HTTP of standard is sent to user browser.
The network manager arrives http server by the browser upload file, choose the Device Domain that needs upgrading then, the http server equipment in the Device Domain of being chosen simultaneously sends the HTTP POST request message (msgType is 0x84) that uses the universal information head to encapsulate, and has carried the upgrade file data in this POST request message body.Terminal equipment carries out verification to data after receiving the upgrade file data, terminal equipment is kept at new version file data in the Flash afterwards, and restart afterwards new version file comes into force (can restart the message restarting equipment by the http server transmitting apparatus by the network manager is long-range after the upload file success) next time.
Equipment operation trace follows the tracks of
For certain calling or operational process that can track terminal equipment, the network manager can be by sending the trace request message to http server to terminal, http server is according to user's selected network element, the data query library information, the IP address that comprises network element, MAC Address etc., mode according to table 1 encapsulates this message, the socket that the current management channels of inquiry network element number is connected with TCP, packaged message is sent to network element (msgType is 0x88) under the private network, after network element device is received this message, after carrying out verification, type and rank according to the trace setting, a field of adding definition in the table 1 after the trace information of equipment encapsulated with http protocol further sends it back http server after the encapsulation, after http server is removed outer encapsulation, the response message (msgType is 0x08) of the HTTP of standard is sent to user browser, thereby demonstrate real-time trace information, if do not need to export trace message, the network manager sends by http server and closes trace message (msgType is 0x88) to terminal equipment
Convenient and intuitively the terminal equipment of being managed is managed for the ease of network management, the mechanism that can report automatically by terminal equipment trap, form that trap reports such as table 1 (msgType is 0x09), the rank that trap reports can send trap by http server to terminal by the network manager and report level request message to be provided with, the content that trap reports is arranged by the terminal equipment type difference, the trap information of http server by the equipment real-time report is reflected in the state of equipment on the webmaster page intuitively, makes things convenient for network manager's inquiry and observation
3. the management of network element device
(1) terminal unit management
After the page of login http server is adopted in the management of terminal equipment, the related network elements of click webmaster management is managed and is realized, the user clicks the network element option, http server is according to the information of this network element in the database, comprise the equipment public network IP, private network IP, information such as MAC, again encapsulate new HTTP message and send to terminal equipment, terminal equipment is made corresponding operation according to this message, again http server is returned in the corresponding message encapsulation, http server is according to corresponding message, transmission standard HTTP message is to user browser, and the user just can have access to the information of terminal equipment, and stand-alone terminal is carried out control corresponding.
(2) territory equipment control
The terminal equipment of same device type, protocol type is added in the same territory, can make things convenient for the user to carry out the common parameters configuration apace, and the upgrading of batch device, user friendly operation and management.
For example to the setting of common parameters, http server can be chosen the territory, the input relevant parameters, according to the information of all devices in the territory, comprise public network IP then, private network IP, MAC etc., the request that will be provided with encapsulates again, sends to the different terminals under the different private networks simultaneously.Terminal carries out sending response message after the respective handling.Then, after http server gathers all response messages, send the standard corresponding message to user browser.
4. message general format
This definition message is interactive messages between http server and the network element terminal, all adopts the http protocol and the corresponding message format of standard between user browser and the http server.
The message header formal definition
Table 1
The ProgType explanation of field:
0x02 device type 2 ROMPaq
…
0x10 device type 8 upgrade datas
0x11 device type 8 configuration datas
0x12 device type 8LOGO upgrading
0x13 device type 8Firmware upgrading
……
Need to prove that at this above-mentioned ProgType field is effective when server is upgraded (type of message is 0x85,0x86) to equipment.
The message header explanation of field
| Sequence number | Field | Describe |
| 1 | HeaderFlag | Terminal equipment and network management protocol are differentiated and message bag stem identification field.Fixed value is: 0xAA 0xBB 0xAA 0xBB |
| 2 | CheckNum | Filled when sending the GET/POST request by server, terminal equipment is backfill in response |
| 3 | MsgType | Type of message sees table 3 for details |
| 4 | Reserved | Two bytes keep |
| 5 | MAC | The terminal equipment MAC Address |
| 6 | MsgLength | The message total length is counted from HeaderFlag (containing) |
| 6 | FullIn | Fill field, expansion after also being convenient to, fixed value is: 0xFF 0xFF |
| 7 | Data | User data area |
Table 2
The MsgType definition
The type of message define method:
0x01-0x7E is that terminal equipment sends message institute type of service to http server
0x81-0xFE is that http server sends message institute type of service to terminal equipment
Wherein:
| Sequence number | Types | Explanation | |
| 1 | 0x01 | The terminal equipment registration message | |
| 2 | 0x81 | Registration is receiveed the response | |
| 3 | 0x02 | Do not use temporarily | |
| 4 | 0x82 | Do not use temporarily | |
| 5 | 0x03 | Response to the GET request | |
| 6 | 0x83 | The GET request is used during configuration parameter | |
| 7 | 0x04 | Response to the POST request | |
| 8 | 0x84 | The POST request | |
| 9 | 0x05 | Upgrade request is responded (terminal equipment can be used for initiating the continuous request that passes) | |
| 10 | 0x85 | Upgrading (setting up TCP connects) request | |
| 11 | 0x06 | Updating result | |
| 12 | 0x86 | Upgrade data | |
| 13 | 0x07 | The reporting message of makeing mistakes can be used as 0x83,0x85 message are responded | |
| 14 | 0x88 | The Trace administrative messag | |
| 15 | 0x08 | Trace message | |
| 16 | 0x89 | Alarm level is provided with message | |
| 17 | 0x09 | Equipment report and alarm information (trap) | |
| 18 | 0x8A | Obtain device configuration file | |
| 19 | 0x0A | Device configuration file |
Table 3
VoIP equipment management system and method thereof to penetrable private network of the present invention has been described in detail above.For one of ordinary skill in the art, any conspicuous change of under the prerequisite that does not deviate from connotation of the present invention it being done all will constitute to infringement of patent right of the present invention, with corresponding legal responsibilities.
Claims (9)
1. the VoIP equipment management system of a penetrable private network comprises that the http server of being located at public network and at least one be located at the terminal equipment of private network, it is characterized in that:
Described terminal equipment comprises the adaptation processing module, and described terminal equipment sends to described http server by described adaptation processing module and to set up the TCP connection requests when starting; After connecting, by described adaptation processing module in idle periods regularly to described http server timed sending registration message.
2. VoIP equipment management system as claimed in claim 1 is characterized in that:
Described http server has predefined network address, and described terminal equipment is provided with the address and the port of described http server in advance.
3. VoIP equipment management system as claimed in claim 2 is characterized in that:
Be provided with database in the described http server, be used for the corresponding socket that described terminal equipment IP address, MAC Address, current management channels number are connected with TCP of preserving.
4. VoIP equipment management system as claimed in claim 1 is characterized in that:
Described VoIP equipment management system also comprises the browser that is connected with described http server, transmits HTTP message between described browser and the described http server; Transmit between described http server and the described terminal equipment, be packaged with the MAC Address of described terminal equipment and in user data area, be packaged with the message of HTTP message in a field.
5. communication means that uses in VoIP equipment management system as claimed in claim 1 is characterized in that:
Described terminal equipment is initiated the request of setting up TCP to the described address of described http server and described port when starting; After setting up the TCP connection, at idle period of time timed sending registration message;
The user sends HTTP message to described http server at public network or in private network;
Described http server is handled and is encapsulated described HTTP message, and the message after the transmission encapsulation is to described terminal equipment;
The message of described terminal equipment after to described encapsulation is resolved, and sends response message through encapsulation to described http server;
Described http server carries out decapsulation after reading described response message through encapsulation, sends http response message to described user.
6. communication means as claimed in claim 5 is characterized in that:
Being connected the message that transmits by described TCP between described http server and the described terminal equipment, is to be packaged with the MAC Address of described terminal equipment and to be packaged with the message of HTTP message in user data area in a field; The message that transmits between described http server and the described user is HTTP message.
7. communication means as claimed in claim 6 is characterized in that:
Described http server according to the described IP address of described terminal equipment, inquires the described MAC Address of described terminal equipment and the socket that TCP connects when described terminal equipment sends message in the described database of described http server;
Described http server is encapsulated into described MAC Address in described the field of described message, the message that will have the HTTP request msg is encapsulated into the described user data area field of described message, the socket that connects according to described TCP sends to described terminal equipment with packaged described message again.
8. communication means as claimed in claim 6 is characterized in that:
Described terminal equipment is when described http server sends message, described MAC Address is encapsulated in the field of described message, the message that will have http response is encapsulated into the user data area field of described message, the socket that the TCP that safeguards by described adaptation processing module connects sends to described http server with packaged described message.
9. communication means as claimed in claim 5 is characterized in that:
Described http server adds a plurality of described terminal equipment of same device type or protocol type in the same territory to; Public network IP, private network IP and MAC Address according to a plurality of described terminal equipments in the described territory encapsulates then, will send to described a plurality of described terminal equipments from user's HTTP message; Described terminal equipment carries out sending response message after the respective handling; Then, described http server sends to described user after all described response messages are gathered.
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| CN108632198A (en) * | 2017-03-15 | 2018-10-09 | 杭州海康威视数字技术股份有限公司 | A kind of device management method and device |
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