CN107086958B - Data transmission method, wap gateway and system - Google Patents
Data transmission method, wap gateway and system Download PDFInfo
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- CN107086958B CN107086958B CN201610087693.1A CN201610087693A CN107086958B CN 107086958 B CN107086958 B CN 107086958B CN 201610087693 A CN201610087693 A CN 201610087693A CN 107086958 B CN107086958 B CN 107086958B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
Abstract
The embodiment of the invention discloses a data transmission method, a wap gateway and a system. In the embodiment of the invention, the first wap gateway receives the terminal request message sent by the network element through the first MPLS VPN connection, and obtains the first Radius record information corresponding to the terminal request message by processing the terminal request message, and synchronizes the first Radius record information to the second wap gateway which is mutually standby with the first wap gateway. In the embodiment of the invention, on one hand, the VPN connection can fully utilize the bandwidth of the network node, reduce network congestion and is more suitable for large-flow processing; on the other hand, when disaster recovery switching is performed, the operation does not involve network element equipment any more, and because the first gateway synchronizes the first Radius recording information to the second gateway, backup is realized, so that when the first gateway is switched to the second gateway, operations such as forcing a user to be offline and then online to register again are not needed, and the efficiency of disaster recovery switching is greatly improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, a wap gateway, and a system.
Background
In the 2/3G era, wap (Wireless Application Protocol) gateways are an important way for mobile terminals to surf the internet, and in the 4G era, all major operators need to implement traffic aggregation and traffic value mining based on integrated gateways. The existing wap gateway or integrated gateway networking mode is mainly based on the existing backbone network such as CMNET, and realizes the docking between the network elements such as ggsn (gateway GPRS Support node) and the like and the gateway through a GRE tunnel mode. Fig. 1 is a schematic diagram of a network architecture for implementing a docking through a GRE tunnel in the prior art, as shown in fig. 1, the network architecture includes a terminal 101, a GGSN102, a wap gateway 103 and a wap gateway 104, where the GGSN102 implements data communication with the wap gateway 103 or the wap gateway 104 through the GRE tunnel.
Because the GRE tunnel is established as a fixed end-to-end link, the forwarding path of the link is basically fixed after the link is established according to the routing policy (the policy is related to the source address and the destination address) of the CMNET backbone network. When the traffic of a certain set of GGSN or PGW (PDN gateway), especially a PGW network element of 4G, is too large, the load of the CMNET backbone network is unbalanced, and some links are overloaded, which causes problems such as increase of network delay and increase of packet loss rate. Moreover, since the GRE tunnel and GRE interface addresses are fixedly allocated, dynamic adjustment of the network load cannot be performed. On the other hand, as shown in fig. 1, in disaster tolerance, the GGSN side needs to delete the existing GRE tunnel and point the GRE tunnel to the wap gateway disaster tolerance node, and since the GRE information on the GGSN side needs to be modified set by set, the disaster tolerance operation is complicated, and in order to ensure that the user is normally used after the disaster tolerance switching, the GGSN side also needs to forcibly log on the network after the network user is offline, which results in low switching efficiency.
In summary, there is a need for a data transmission method that can fully utilize the bandwidth of network nodes, reduce network congestion, and effectively improve the disaster recovery switching efficiency.
Disclosure of Invention
The embodiment of the invention provides a data transmission method, a wap gateway and a system, which are used for fully utilizing the bandwidth of a network node, reducing network congestion and effectively improving disaster recovery switching efficiency.
The data transmission method provided by the embodiment of the invention comprises the following steps:
a first wireless application communication protocol wap gateway receives a terminal request message sent by a network element through a first multi-protocol label switching virtual private network technology MPLS VPN connection; the first MPLS VPN connection is a connection established with the first wap gateway through the routing equipment at the network element side;
the first wap gateway processes the terminal request message to obtain first remote authentication dial-up user service Radius recording information corresponding to the terminal request message;
and the first wap gateway synchronizes the first Radius recording information to a second wap gateway, and the second wap gateway and the first wap gateway are mutually standby wap gateways.
Preferably, before the first wap gateway receives the terminal request message sent by the network element through the first MPLS VPN connection, the method further includes:
a first wap gateway receives a connection request message for establishing the first MPLS VPN connection, which is sent by the network element, where the connection request message is sent by the network element after determining that the second wap gateway is unavailable, and a second MPLS VPN connection established by a routing device on the network element side exists between the second wap gateway and the network element;
and the first wap gateway establishes the first MPLS VPN connection with the network element according to the connection request message.
Preferably, before the first wap gateway receives the connection request message for establishing the first MPLS VPN connection sent by the network element, the method further includes:
and the first wap gateway receives second Radius record information sent by the second wap gateway, wherein the second Radius record information is obtained by processing a terminal request message by the second wap gateway.
Preferably, the terminal request message is a service request message; the service request message comprises identification information of a user corresponding to the terminal;
the processing, by the first wap gateway, the terminal request message to obtain first Radius record information corresponding to the terminal request message includes:
the first wap gateway obtains second Radius recording information corresponding to the identification information of the user according to the identification information of the user;
and the first wap gateway processes the service request message according to the second Radius record information corresponding to the identification information of the user to obtain the first Radius record information corresponding to the service request message.
Preferably, the synchronizing the first Radius record information to the second wap gateway by the first wap gateway includes:
and the first wap gateway sends the first Radius recording information to a first synchronization server corresponding to the first wap gateway, so that the first synchronization server synchronizes the first Radius recording information to the second wap gateway.
An embodiment of the present invention provides a wap gateway, including:
a receiving module, configured to receive a terminal request message sent by a network element through a first MPLS VPN connection; the first MPLS VPN connection is a connection established with the wap gateway through the routing equipment at the network element side;
the processing module is used for processing the terminal request message to obtain first remote authentication dial-up user service Radius record information corresponding to the terminal request message;
and the synchronization module is used for synchronizing the first Radius recording information to a standby wap gateway of the wap gateway.
Preferably, the receiving module is further configured to:
receiving a connection request message for establishing the first MPLS VPN connection, which is sent by the network element, wherein the connection request message is sent by the network element after the network element determines that a standby wap gateway of the wap gateway is unavailable, and a second MPLS VPN connection established through a routing device on the network element side exists between the standby wap gateway of the wap gateway and the network element;
the processing module is further configured to:
and establishing the first MPLS VPN connection with the network element according to the connection request message.
Preferably, the receiving module is further configured to:
and receiving second Radius recording information sent by a standby wap gateway of the wap gateway, wherein the second Radius recording information is obtained by processing a terminal request message by the standby wap gateway of the wap gateway.
Preferably, the terminal request message is a service request message; the service request message comprises identification information of a user corresponding to the terminal;
the processing module is specifically configured to:
obtaining second Radius recording information corresponding to the identification information of the user according to the identification information of the user;
and processing the service request message according to the second Radius recording information corresponding to the identification information of the user to obtain the first Radius recording information corresponding to the service request message.
Preferably, the synchronization module is specifically configured to:
and sending the first Radius recording information to a first synchronization server corresponding to the wap gateway, so that the first synchronization server synchronizes the first Radius recording information to a standby wap gateway of the wap gateway.
The embodiment of the invention provides a data transmission system, which comprises a network element, a first wap gateway and a second wap gateway;
the network element is used for sending a terminal request message to the first wap gateway through a first MPLS VPN connection; the first MPLS VPN connection is a connection established with the first wap gateway through the routing equipment at the network element side;
the first wap gateway is used for receiving the terminal request message and processing the terminal request message to obtain first remote authentication dial-up user service Radius recording information corresponding to the terminal request message; synchronizing the first Radius recording information to a second wap gateway;
the second wap gateway is used for receiving the first Radius recording information synchronized by the first wap gateway; the second wap gateway and the first wap gateway are standby wap gateways.
Preferably, the system further comprises a first synchronization server corresponding to the first wap gateway and a second synchronization server corresponding to the second wap gateway;
the first wap gateway is further configured to send the first Radius record information to the first synchronization server, and receive second Radius record information sent by the second synchronization server; the second Radius recording information is obtained by processing a terminal request message by the second wap gateway and is sent to the second synchronization server;
the first synchronization server is used for synchronizing the first Radius recording information to the second wap gateway;
and the second synchronization server is used for synchronizing the second Radius recording information to the first wap gateway.
Preferably, the network element is further configured to send a connection request message for establishing the first MPLS VPN connection to the first wap gateway after determining that the second wap gateway is unavailable; a second MPLS VPN connection established through the routing equipment on the network element side exists between the second wap gateway and the network element;
and the first wap gateway is further configured to establish the first MPLSVPN connection with the network element according to the connection request message.
In the above embodiment of the present invention, the first wap gateway receives the terminal request message sent by the network element through the first MPLS VPN connection, and processes the terminal request message to obtain the first Radius record information corresponding to the terminal request message, and synchronizes the first Radius record information to the second wap gateway, where the second wap gateway and the first wap gateway are mutually standby wap gateways. In the embodiment of the invention, the first MPLS VPN connection is established with the first wap gateway through the routing equipment at the network element side, on one hand, compared with GRE, the MPLS VPN is distributed more dispersedly in a CMNET routing table, which is beneficial to flow balance, can fully utilize network node bandwidth, reduces network congestion and is more suitable for large-flow processing; on the other hand, when disaster recovery switching is performed, the operation does not involve network element equipment any more, GRE tunnel adjustment is not needed, and because the first wap gateway synchronizes the first Radius recording information to the second wap gateway, backup is realized, so that when the first wap gateway switches to the second wap gateway, operations such as forcing a user to log on the line again after offline are not needed, and the efficiency of disaster recovery switching is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a network architecture for implementing interfacing through GRE tunnels in the prior art;
FIG. 2 is a diagram of a network architecture suitable for use in embodiments of the present invention;
fig. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an interaction process of a data transmission method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a wap gateway according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a data transmission system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The data transmission method in the embodiment of the present invention is applicable to various application scenarios, and is a schematic diagram of a network architecture applicable to the embodiment of the present invention, as shown in fig. 2. The network architecture comprises a terminal 201, a network element 202, a routing device 2021 at the network element side, a first wap gateway 203 and a second wap gateway 204, and further comprises a routing device 2031 at the first wap gateway 203 side and a routing device 2041 at the second wap gateway 204 side; the Network element 202 is connected to the first wap gateway 203 through a first MPLS VPN (Multi protocol label Switching Virtual Private Network), or the Network element 202 is connected to the second wap gateway 204 through a second MPLS VPN to implement data communication.
The first wap gateway 203 and the second wap gateway 204 are standby wap gateways for each other, and the first wap gateway 203 and the second wap gateway 204 can synchronize data in a plurality of ways, for example, the first wap gateway 203 can synchronize data to the second wap gateway 204 through its corresponding first synchronization server, and correspondingly, the second wap gateway 204 can synchronize data to the first wap gateway 203 through its corresponding second synchronization server.
Based on the network architecture shown in fig. 2, fig. 3 is a schematic flowchart illustrating a data transmission method provided in an embodiment of the present invention, where the method includes:
In the embodiment of the invention, the first MPLS VPN connection is established with the first wap gateway through the routing equipment at the GGSN side, on one hand, compared with the GRE, the MPLS-VPN is distributed more dispersedly in a CMNET routing table, thereby being beneficial to flow balance, fully utilizing the bandwidth of network nodes, reducing network congestion and being more suitable for large-flow processing; on the other hand, when disaster recovery switching is performed, the operation does not involve GGSN equipment any more, GRE tunnel adjustment is not needed, and the first wap gateway synchronizes the first Radius recording information to the second wap gateway, so that backup is realized, and therefore, when the first wap gateway switches to the second wap gateway, operations such as forced user offline and re-online registration are not needed, and the efficiency of disaster recovery switching is greatly improved. In the embodiment of the present invention, when a network architecture is deployed, routing devices may be added to a network element side, a first wap gateway side, and a second wap gateway side in an existing network architecture shown in fig. 1, and 2 MPLS VPN connections (a first MPLS VPN connection and a second MPLS VPN connection) are configured in advance on the routing device on the network element side, where the first MPLS VPN connection points to the first wap gateway and the second MPLS VPN connection points to the second wap gateway. In the embodiment of the invention, at the same time, the routing equipment at the network element side only establishes the first MPLS VPN connection with the first wap gateway, or only establishes the second MPLS VPN connection with the second wap gateway. The first MPLS VPN connection and the second MPLS VPN connection may be flexibly switched. The following specifically describes switching between the first MPLS VPN connection and the second MPLS VPN connection, and the second MPLS VPN connection is switched to the first MPLS VPN connection.
The routing device in the embodiment of the present invention may be a PE device (Provider Edge, operator Edge router). The network element in the embodiment of the present invention may be a GGSN or a PGW, and the GGSN is taken as an example for description below. And assuming that the second wap gateway is the main wap gateway and the first wap gateway is the standby wap gateway. Under normal conditions, the GGSN performs data transmission with the primary wap gateway (second wap gateway) through the established second MPLS VPN connection, which may specifically be: and the second wap gateway receives the terminal request message sent by the GGSN through the second MPLSVPN connection, and processes the terminal request message to obtain second Radius record information corresponding to the terminal request message. It should be noted that the terminal request message may be a user registration request message of the terminal, or a service request message sent by the terminal after successful registration; if the user registration request message is the user registration request message of the terminal, the second wap gateway processes the user registration request message, and obtains second Radius recording information corresponding to the user registration request message under the condition that the user registration is determined to be successful; and if the service request message is the service request message, the second wap gateway processes the service request message, and after the service processing in the service request message is determined to be successful, second Radius recording information corresponding to the service request message is obtained. The second Radius record information may be classified according to user identification information, that is, there is a corresponding relationship between the user identification information and the second Radius record information of the user.
After the second wap gateway obtains the second Radius record information, the second Radius record information can be synchronized to the first wap gateway in real time, specifically, the second Radius record information can be sent to the second synchronization server, and the second synchronization server synchronizes to the first wap gateway.
After determining that the second wap gateway is unavailable, the GGSN needs to perform disaster recovery switching, and at this time, the GGSN sends a connection request message for establishing a first MPLS VPN connection to a standby wap gateway (a first wap gateway); and after receiving the connection request message, the first wap gateway establishes a first MPLS VPN connection with the GGSN according to the connection request message and performs data transmission with the GGSN through the first MPLS VPN connection. In the embodiment of the invention, the starting point of the first MPLS VPN connection and the second MPLS VPN connection is PE equipment at the GGSN side, but not the GGSN, so that data adjustment on the GGSN caused by disaster recovery switching can be well avoided. Furthermore, before the handover, the second wap gateway synchronizes the obtained second Radius record information to the first wap gateway, therefore, the first wap gateway stores therein second Radius record information corresponding to identification information of different users, for the user who has successfully registered on the second wap gateway, after the handover, the first wap gateway can directly process the service request message sent by the user terminal, and the user does not need to be forced to log on again after going off the line, and particularly, the first wap gateway can acquire the second Radius record information corresponding to the identification information of the user according to the identification information of the user, and then processes the service request message sent by the user terminal according to the second Radius record information, therefore, the non-sensing switching of the user is realized, and the user does not need to log on the line again after being off the line, so that the switching efficiency is greatly improved. For the user who has not registered successfully on the second wap gateway, after the switching, the user terminal can directly send the user registration request message, and the first wap gateway processes the user registration request message, so as to complete the user registration. The first wap gateway processes the service request message and the user registration request message to obtain first Radius recording information, and similarly, the first wap gateway synchronizes the real-time first Radius recording information to the second wap gateway, which can be specifically realized by a first synchronization server corresponding to the first wap gateway.
The data transmission method in the embodiment of the present invention relates to an interaction process between a terminal, a GGSN, a first wap gateway, a second wap gateway, a first synchronization server, and a second synchronization server, fig. 4 is a schematic diagram of an interaction process of the data transmission method provided in the embodiment of the present invention, and the following describes the embodiment of the present invention in detail with reference to fig. 4.
Step 401, the terminal sends a user registration request message to the GGSN;
step 402, after receiving the user registration request message, the GGSN sends the user registration request message to the second wap gateway through the second MPLS VPN connection;
step 403, the second wap gateway processes the user registration request message to obtain second Radius record information corresponding to the user registration request message, and sends the second Radius record information to a corresponding second synchronization server;
step 404, the second synchronization server synchronizes the received second Radius recording information to the first wap gateway;
step 405, after determining that the second wap gateway is unavailable, the GGSN sends a connection request message for establishing a first MPLS VPN connection to the first wap gateway;
step 406, the first wap gateway establishes a first MPLS VPN connection with the GGSN according to the connection request message;
step 407, the terminal sends a service request message to the GGSN;
step 408, the GGSN sends the received service request message to the first wap gateway through the first MPLS VPN connection; the service request message comprises identification information of a user;
step 408, the first wap gateway obtains second Radius record information corresponding to the identification information of the user according to the identification information of the user, and processes the service request message according to the second Radius record information to obtain first Radius record information corresponding to the service request message;
step 409, the first wap gateway sends the obtained first Radius record information to the corresponding first synchronization server,
step 410, the first synchronization server synchronizes the received first Radius record information to the second wap gateway.
In the above embodiment of the present invention, the first wap gateway receives the terminal request message sent by the network element through the first MPLS VPN connection, and processes the terminal request message to obtain the first Radius record information corresponding to the terminal request message, and synchronizes the first Radius record information to the second wap gateway, where the second wap gateway and the first wap gateway are mutually standby wap gateways. In the embodiment of the invention, the first MPLS VPN connection is established with the first wap gateway through the routing equipment at the network element side, on one hand, compared with the GRE, the MPLS-VPN is distributed more dispersedly in a CMNET routing table, which is beneficial to flow balance, can fully utilize the network node bandwidth, reduce network congestion and is more suitable for large-flow processing; on the other hand, when disaster recovery switching is performed, the operation does not involve network element equipment any more, GRE tunnel adjustment is not needed, and because the first wap gateway synchronizes the first Radius recording information to the second wap gateway, backup is realized, so that when the first wap gateway switches to the second wap gateway, operations such as forcing a user to log on the line again after offline are not needed, and the efficiency of disaster recovery switching is greatly improved.
For the above method flow, an embodiment of the present invention further provides a wap gateway, and specific contents of the wap gateway may be implemented with reference to the above method.
Fig. 5 is a schematic structural diagram of a wap gateway provided in an embodiment of the present invention, where the wap gateway includes:
a receiving module 501, configured to receive a terminal request message sent by a network element through a first MPLS VPN connection; the first MPLS VPN connection is a connection established with the wap gateway through the routing equipment at the network element side;
a processing module 502, configured to process the terminal request message to obtain first remote authentication dial-up user service Radius record information corresponding to the terminal request message;
a synchronizing module 503, configured to synchronize the first Radius record information to a standby wap gateway of the wap gateway.
Preferably, the receiving module 501 is further configured to:
receiving a connection request message for establishing the first MPLS VPN connection, which is sent by the network element, wherein the connection request message is sent by the network element after the network element determines that a standby wap gateway of the wap gateway is unavailable, and a second MPLS VPN connection established through a routing device on the network element side exists between the standby wap gateway of the wap gateway and the network element;
the processing module 502 is further configured to:
and establishing the first MPLS VPN connection with the network element according to the connection request message.
Preferably, the receiving module 501 is further configured to:
and receiving second Radius recording information sent by a standby wap gateway of the wap gateway, wherein the second Radius recording information is obtained by processing a terminal request message by the standby wap gateway of the wap gateway.
Preferably, the terminal request message is a service request message; the service request message comprises identification information of a user corresponding to the terminal;
the processing module 502 is specifically configured to:
obtaining second Radius recording information corresponding to the identification information of the user according to the identification information of the user;
and processing the service request message according to the second Radius recording information corresponding to the identification information of the user to obtain the first Radius recording information corresponding to the service request message.
Preferably, the synchronization module 503 is specifically configured to:
and sending the first Radius recording information to a first synchronization server corresponding to the wap gateway, so that the first synchronization server synchronizes the first Radius recording information to a standby wap gateway of the wap gateway.
Fig. 6 is a schematic structural diagram of a data transmission system according to an embodiment of the present invention, where the data transmission system includes a network element 601, a first wap gateway 602, and a second wap gateway 603;
the network element 601 is configured to send a terminal request message to the first wap gateway 602 through a first MPLS VPN connection; the first MPLS VPN connection is a connection established with the first wap gateway 602 through a routing device on the network element 601 side;
the first wap gateway 602 is configured to receive the terminal request message, process the terminal request message, and obtain first remote authentication dial-up user service Radius record information corresponding to the terminal request message; and synchronizing the first Radius record information to a second wap gateway 603;
the second wap gateway 603 is configured to receive the first Radius record information synchronized by the first wap gateway 602; the second wap gateway 603 and the first wap gateway 602 are standby wap gateways.
Preferably, a first synchronization server 604 corresponding to the first wap gateway and a second synchronization server 605 corresponding to the second wap gateway are further included;
the first wap gateway 602 is further configured to send the first Radius record information to the first synchronization server 604, and receive second Radius record information sent by the second synchronization server 605; the second Radius record information is obtained by processing the terminal request message by the second wap gateway 603 and sending the terminal request message to the second synchronization server 605;
the first synchronization server 604 is configured to synchronize the first Radius record information to the second wap gateway 603;
the second synchronization server 605 is configured to synchronize the second Radius record information to the first wap gateway 602.
Preferably, the network element is further configured to send a connection request message for establishing the first MPLS VPN connection to the first wap gateway 602 after determining that the second wap gateway 603 is unavailable; a second MPLS VPN connection established through the routing device on the network element 601 side exists between the second wap gateway 603 and the network element;
the first wap gateway 602 is further configured to establish the first MPLS VPN connection with the network element 601 according to the connection request message.
From the above, it can be seen that:
in the above embodiment of the present invention, the first wap gateway receives the terminal request message sent by the network element through the first MPLS VPN connection, and processes the terminal request message to obtain the first Radius record information corresponding to the terminal request message, and synchronizes the first Radius record information to the second wap gateway, where the second wap gateway and the first wap gateway are mutually standby wap gateways. In the embodiment of the invention, the first MPLS VPN connection is established with the first wap gateway through the routing equipment at the network element side, on one hand, compared with the GRE, the MPLS-VPN is distributed more dispersedly in a CMNET routing table, which is beneficial to flow balance, can fully utilize the network node bandwidth, reduce network congestion and is more suitable for large-flow processing; on the other hand, when disaster recovery switching is performed, the operation does not involve network element equipment any more, GRE tunnel adjustment is not needed, and because the first wap gateway synchronizes the first Radius recording information to the second wap gateway, backup is realized, so that when the first wap gateway switches to the second wap gateway, operations such as forcing a user to log on the line again after offline are not needed, and the efficiency of disaster recovery switching is greatly improved.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A method of data transmission, the method comprising:
a first wireless application communication protocol wap gateway receives second remote authentication dial-up user service Radius recording information sent by a second wap gateway, wherein the second Radius recording information is obtained by processing a terminal request message by the second wap gateway;
the first wap gateway receives a connection request message which is sent by a network element and used for establishing a first multi-protocol label switching virtual private network technology MPLS VPN connection, wherein the connection request message is sent by the network element after the network element determines that the second wap gateway is unavailable, and a second MPLS VPN connection established through a routing device on the network element side exists between the second wap gateway and the network element;
the first wap gateway establishes a first MPLS VPN connection with the network element according to the connection request message;
the first wap gateway receives a terminal request message sent by a network element through the first MPLS VPN connection;
the first wap gateway processes the terminal request message to obtain first Radius record information corresponding to the terminal request message;
and the first wap gateway synchronizes the first Radius recording information to the second wap gateway, wherein the second wap gateway is a main wap gateway, and the first wap gateway is a standby wap gateway.
2. The method of claim 1, wherein the terminal request message is a service request message; the service request message comprises identification information of a user corresponding to the terminal;
the processing, by the first wap gateway, the terminal request message to obtain first Radius record information corresponding to the terminal request message includes:
the first wap gateway obtains second Radius recording information corresponding to the identification information of the user according to the identification information of the user;
and the first wap gateway processes the service request message according to the second Radius record information corresponding to the identification information of the user to obtain the first Radius record information corresponding to the service request message.
3. The method of claim 1 or 2, wherein the first wap gateway synchronizing the first Radius record information to a second wap gateway, comprising:
and the first wap gateway sends the first Radius recording information to a first synchronization server corresponding to the first wap gateway, so that the first synchronization server synchronizes the first Radius recording information to the second wap gateway.
4. A wap gateway, comprising:
a receiving module, configured to receive second Radius record information of a second remote authentication dial-up user service sent by a second wap gateway, where the second Radius record information is obtained by processing a terminal request message by the second wap gateway; receiving a connection request message for establishing a first multi-protocol label switching virtual private network (MPLS VPN) connection sent by a network element, wherein the connection request message is sent by the network element after the network element determines that a second wap gateway is unavailable, and a second MPLS VPN connection established by a routing device on the network element side exists between the second wap gateway and the network element;
the processing module is used for establishing a first MPLS VPN connection with the network element according to the connection request message;
the receiving module is further configured to receive a terminal request message sent by a network element through a first MPLS VPN connection;
the processing module is further configured to process the terminal request message to obtain first remote authentication dial-up user service Radius record information corresponding to the terminal request message;
and the synchronization module is used for synchronizing the first Radius recording information to the second wap gateway, wherein the second wap gateway is a main wap gateway, and the wap gateway is a standby wap gateway.
5. The wap gateway of claim 4, wherein the terminal request message is a service request message; the service request message comprises identification information of a user corresponding to the terminal;
the processing module is specifically configured to:
obtaining second Radius recording information corresponding to the identification information of the user according to the identification information of the user;
and processing the service request message according to the second Radius recording information corresponding to the identification information of the user to obtain the first Radius recording information corresponding to the service request message.
6. The wap gateway of claim 4 or 5, wherein the synchronization module is specifically configured to:
and sending the first Radius recording information to a first synchronization server corresponding to the wap gateway, so that the first synchronization server synchronizes the first Radius recording information to a standby wap gateway of the wap gateway.
7. A data transmission system is characterized in that the data transmission system comprises a network element, a first wap gateway and a second wap gateway;
the first wap gateway is configured to receive second Radius record information of a remote authentication dial-up user service sent by the second wap gateway, where the second Radius record information is obtained by processing a terminal request message by the second wap gateway;
the network element is configured to send a connection request message for establishing the first MPLS VPN connection to the first wap gateway after determining that the second wap gateway is unavailable; a second MPLS VPN connection established through the routing equipment on the network element side exists between the second wap gateway and the network element;
the first wap gateway is used for establishing the first MPLS VPN connection with the network element according to the connection request message;
the network element is further configured to send the terminal request message to the first wap gateway through a first MPLS VPN connection;
the first wap gateway is further configured to receive the terminal request message, process the terminal request message, and obtain first remote authentication dial-up user service Radius record information corresponding to the terminal request message; synchronizing the first Radius recording information to a second wap gateway;
the second wap gateway is used for receiving the first Radius recording information synchronized by the first wap gateway; the second wap gateway is a main wap gateway, and the first wap gateway is a standby wap gateway.
8. The data transmission system of claim 7, further comprising a first synchronization server corresponding to the first wap gateway and a second synchronization server corresponding to the second wap gateway;
the first wap gateway is further configured to send the first Radius record information to the first synchronization server, and receive second Radius record information sent by the second synchronization server; the second Radius recording information is obtained by processing a terminal request message by the second wap gateway and is sent to the second synchronization server;
the first synchronization server is used for synchronizing the first Radius recording information to the second wap gateway;
and the second synchronization server is used for synchronizing the second Radius recording information to the first wap gateway.
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