源端口号 A_P1、传输层协议类型 X、目的 IP地址 B !p₂和目的端口号 B_P2，则业务获取数据包的数据传输参数组包含源 IP地址 A_wr , 源端口号 A_P1,、传输层协议类型 X，、目的 IP地址 B_wv 和目的端口号 Bp₂,。The service processing module 102 is configured to receive a service request data packet and divide the service request data packet. Analyze to determine how to handle the business request packet. Specifically, after receiving the service request data packet, the service processing module 102 may search for a corresponding service policy according to a preset service policy (for example, searching for a source IP address and/or a destination IP address of the data packet), and according to the The business policy generates a service acquisition packet corresponding to the service request packet. Compared with the service request data packet, the data transmission parameter group of the service acquisition data packet and the data payload content may change. For example, the source IP address, source port number, destination IP address, destination port number, and OSI transport layer protocol type in the data transmission parameter group may change. The OSI application layer protocol type and OSI application layer data may also be different. . For example, the service processing module 102 can learn the service that the user wants to access by analyzing the service request data packet (analysing the data transmission parameter group and/or the payload data of the data packet), and further determining the IP address of the service server providing the service. The port number corresponding to the service (as described above, the IP address of the service server may not be the destination IP address of the service request packet), so that the service acquisition data packet is constructed according to the IP address and the port number. In addition, according to specific service control policies such as service routing, protocol conversion, header enhancement, etc., the specific payload contents included in the service acquisition data packet and the service request data packet may also be changed. The process of generating a service acquisition data packet according to the service request data packet is related to a specific control policy and/or a business service policy formulated by the service provider, and/or related to a specific control policy and/or a business service policy customized by the user, where No longer. At this point, assume that the data transmission parameter set of the service request packet contains the source IP address.

The source port number A_P1 , the transport layer protocol type X, the destination IP address B !p_{2 ,} and the destination port number B_P2 , the data transmission parameter group of the service acquisition data packet includes the source IP address A_wr , the source port number A_P1 , Transport layer protocol type X, destination IP address B_wv and destination port number Bp₂ .

为了使业务请求数据包的应答数据能够正常返回终端设备，业务处理模块 102 需要记录所述业务请求数据包的数据传输参数组，例如所述业务请求数据包的源 IP地址、源端口号、目的 IP地址、目的端口号、 OSI传输层协议类型等等，并记录业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系。 In order to enable the response data of the service request data packet to be returned to the terminal device normally, the service processing module 102 needs to record the data transmission parameter group of the service request data packet, for example, the source IP address, the source port number, and the destination of the service request data packet. The IP address, the destination port number, the OSI transport layer protocol type, and the like, and record the correspondence between the data transmission parameter group of the service acquisition data packet and the data transmission parameter group of the service request data packet.

此外，业务处理模块 102还用于根据所述业务请求数据包进行业务处理，例如进行业务控制操作和 /或计费操作等。In addition, the service processing module 102 is further configured to perform service processing according to the service request data packet, For example, a service control operation and/or a charging operation are performed.

地址转换模块 104用于记录所述业务获取数据包的数据传输参数组中的源 IP地址和源端口号，在所述至少一个 IP地址和多个端口号中分别选择一 IP地址和一端口号来对所述业务获取数据包的数据传输参数组中的源 IP 地址和源端口号进行替换，记录替换后的业务获取数据包的数据传输参数组与所述记录的源 IP地址和源端口号之间的对应关系，并发出替换后的业务获取数据包，其中，替换后的业务获取数据包的数据传输参数组是唯一的；以及接收作为对替换后的业务获取数据包的应答的业务承载数据包，根据所述记录的替换后的业务获取数据包的数据传输参数组与所述记录的源 IP 地址和源端口号之间的对应关系，由所述业务承载数据包的数据传输参数组获得所述记录的源 IP地址和源端口号，依据记录的源 IP地址和源端口号替换所述业务承载数据包的目的 IP 地址和目的端口号。 The address conversion module 104 is configured to record a source IP address and a source port number in the data transmission parameter group of the service acquisition data packet, and select an IP address and a port number in the at least one IP address and the multiple port numbers respectively. And replacing the source IP address and the source port number in the data transmission parameter group of the service acquisition data packet, and recording the data transmission parameter group of the replaced service acquisition data packet and the source IP address and the source port number of the record. Corresponding relationship, and sending the replaced service acquisition data packet, wherein the data transmission parameter group of the replaced service acquisition data packet is unique; and receiving the service bearer as a response to the replaced service acquisition data packet a data packet, a data transmission parameter group of the service bearer data packet, according to the correspondence between the data transmission parameter group of the replaced service acquisition packet and the source IP address and the source port number of the record Obtaining the source IP address and the source port number of the record, and replacing the service bearer according to the source IP address and the source port number of the record. The destination IP address and destination port number of the packet.

具体来说，每一业务处理单元都配置有一 IP地址池，该 IP地址池中包含至少一个 IP地址。不难理解，在从上述至少一个 IP地址和多个端口号中选择 IP地址和端口号时，应保证包含所选的 IP地址与所选的端口号的替换后的业务获取数据包的数据传输参数组是唯一的，否则将导致数据传输发生混乱。在根据所选 IP地址和端口号对业务获取数据包的源 IP地址和源端口号进行替换之后，替换后的业务获取数据包将发往服务提供商的业务服务器。在具体实现过程中，可采用多种方式从 IP地址池中选择 IP地址，以及从多个端口号中选择端口号，在此不再——赘述。此时，当业务获取数据包的数据传输参数组包含源 IP地址 A π ,、源端口号 Α_Ρ1,、传输层协议类型 X，、目的 IP地址 B 和目的端口号 B_P2,时，则替换后的业务获取数据包的数据传输参数组将包含源 IP地址 A jp₃、源端口号 Ap₃、传输层协议类型 X，、目的 IP地址 B 和目的端口号 B_P2, 。Specifically, each service processing unit is configured with an IP address pool, and the IP address pool includes at least one IP address. It is not difficult to understand that when selecting an IP address and a port number from the above at least one IP address and a plurality of port numbers, the data transmission of the replaced service acquisition data packet including the selected IP address and the selected port number should be guaranteed. The parameter group is unique, otherwise it will cause confusion in data transmission. After the source IP address and the source port number of the service acquisition data packet are replaced according to the selected IP address and port number, the replaced service acquisition data packet is sent to the service provider's service server. In a specific implementation process, an IP address can be selected from the IP address pool in multiple manners, and a port number is selected from multiple port numbers, which is not described here. At this time, when the data transmission parameter group of the service acquisition data packet includes the source IP address A π , the source port number Α_Ρ1 , the transport layer protocol type X, the destination IP address B, and the destination port number B_P2 , then the replacement is performed. The data transmission parameter set of the subsequent service acquisition data packet will include the source IP address A jp₃ , the source port number Ap₃ , the transport layer protocol type X, the destination IP address B, and the destination port number B_P2 .

业务服务器在对替换后的业务获取数据包进行处理之后，将返回业务承载数据包，作为对替换后的业务获取数据包的应答。例如，若终端（例如各种终端设备（例如移动电话、笔记本计算机等移动终端）请求访问多媒体内容，则业务承载数据包中将承载对应的多媒体数据。根据业务获取数据包生成并返回业务承载数据包的过程与服务提供商提供服务的方式有关，在此不再一一赘述。当替换后的业务获取数据包的数据传输参数组包含源 IP地址 Ajp₃、源端口号 A_P3、传输层协议类型 X，、目的 IP地址 B jp₂,和目的端口号 B_P2,时，则业务承载数据包的数据传输参数组将包含源 IP地址 B jp₂,、源端口号 B_P2,、传输层协议类型 X，、目的 IP地址 Α π^和目的端口号 Ap₃。After processing the replaced service acquisition data packet, the service server returns a service bearer data packet as a response to the replaced service acquisition data packet. For example, if a terminal (for example, a mobile terminal such as a mobile phone or a notebook computer) requests access to multimedia content, The corresponding multimedia data will be carried in the service bearer data packet. The process of generating and returning a service bearer packet according to the service acquisition data packet is related to the manner in which the service provider provides the service, and will not be repeated here. When the data transmission parameter group of the replaced service acquisition data packet includes the source IP address Ajp₃ , the source port number A_P3 , the transport layer protocol type X, the destination IP address B jp₂ , and the destination port number B_P2 , then The data transmission parameter set of the service bearer packet will include the source IP address B jp₂ , the source port number B_P2 , the transport layer protocol type X, the destination IP address π π^, and the destination port number Ap₃ .

在收到作为对上述业务获取数据包的应答的业务承载数据包之后，地址转换模块 104根据所述记录的替换后的业务获取数据包的数据传输参数组与所述记录的源 IP地址和源端口号之间的对应关系，由所述业务承载数据包的数据传输参数组获得所述记录的源 IP地址和源端口号，依据记录的源 IP地址和源端口号替换所述业务承载数据包的目的 IP 地址和目的端口号。在具体实现过程中，可通过比对业务承载数据包和替换后的业务获取数据包的数据传输参数组来确定该业务承载数据包是否为该替换后的业务获取数据包的应答，例如，将业务承载数据包的源 IP 地址和源端口号分别与替换后的业务获取数据包的目的 IP地址和目的端口号进行比较，并将业务承载数据包的目的 IP地址和目的端口号分别与替换后的业务获取数据包的源 IP地址和源端口号进行比较，在此基础上，还可将业务承载数据包的 OSI传输层协议类型与替换后的业务获取数据包的 OSI传输层协议类型进行比较。如果比较结果均相同，则说明业务承载数据包为对替换后的业务获取数据包的应答。当业务承载数据包的数据传输参数组包含源 IP地址 B jpr ^源端口号 B_P2,、传输层协议类型 X，、目的 IP地址 A_ff3 和目的端口号 A_P3，则替换后的业务承载数据包的数据传输参数组将包含源 IP 地址 B 、源端口号 Bp₂,、传输层协议类型 X，、目的 IP地址 A ，和目的端口号 Α_Ρ1,。After receiving the service bearer data packet as a response to the foregoing service acquisition data packet, the address conversion module 104 acquires the data transmission parameter group of the data packet and the source IP address and source of the record according to the recorded replaced service. The source IP address and the source port number of the record are obtained by the data transmission parameter group of the service bearer data packet, and the service bearer data packet is replaced according to the source IP address and the source port number of the record. Destination IP address and destination port number. In a specific implementation process, the data transmission parameter group of the service bearer packet and the replaced service acquisition data packet may be used to determine whether the service bearer data packet is a response to the replaced service acquisition data packet, for example, The source IP address and the source port number of the service bearer packet are respectively compared with the destination IP address and the destination port number of the replaced service acquisition data packet, and the destination IP address and the destination port number of the service bearer data packet are respectively replaced with the destination port number. The service obtains the source IP address of the data packet and compares the source port number, and on the basis of this, compares the OSI transport layer protocol type of the service bearer data packet with the OSI transport layer protocol type of the replaced service acquisition data packet. . If the comparison result is the same, the service bearer data packet is a response to the data packet obtained by the replaced service. When the data transmission parameter group of the service bearer data packet includes the source IP address B jpr ^ source port number B_P2 , the transport layer protocol type X, the destination IP address A_ff3, and the destination port number A_P3 , the replaced service bearer data The data transmission parameter set of the packet will contain the source IP address B, the source port number Bp₂ , the transport layer protocol type X, the destination IP address A, and the destination port number Α_Ρ1 .

应注意，在依据记录的源 IP地址和源端口号替换所述业务承载数据包的目的 IP地址和目的端口号之后，地址转换模块 104将记录的源 IP地址和源端口号删除。此外，若返回的业务承载数据包有多个，则地址转换模块 104在依据记录的源 IP地址和源端口号对最后一个业务^载数据包的目的 IP地址和目的端口号进行替换之后，再将记录的源 IP地址和源端口号删除。It should be noted that after replacing the destination IP address and the destination port number of the service bearer packet according to the recorded source IP address and source port number, the address translation module 104 deletes the recorded source IP address and source port number. In addition, if there are multiple service bearer data packets returned, the address translation module 104 is based on After the source IP address and source port number of the record are replaced with the destination IP address and destination port number of the last service packet, the source IP address and source port number of the record are deleted.

业务处理模块 102还用于根据记录的所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系，由替换后的业务承载数据包的数据传输参数组获得所述业务请求数据包的数据传输参数组，并根据替换后的业务承载数据包和所述业务请求数据包的数据传输参数组生成业务应答数据包，并发送所述业务应答数据包，以作为对所述业务请求数据包的应答。当替换后的业务承载数据包的数据传输参数组包含源 IP地址 B jp₂,、源端口号 B_P2,、传输层协议类型 X，、目的 IP地址 A JM,和目的端口号 A_P1，时，业务应答数据包的数据传输参数组将包含 B_IP2、源端口号 B_P2、传输层协议类型 X、目的 IP地址 A n 和目的端口号 A_P1。The service processing module 102 is further configured to obtain, according to the recorded service, a correspondence between a data transmission parameter group of the data packet and a data transmission parameter group of the service request data packet, and a data transmission parameter group of the replaced service bearer data packet. Obtaining a data transmission parameter group of the service request data packet, and generating a service response data packet according to the replaced service bearer data packet and the data transmission parameter group of the service request data packet, and sending the service response data packet, to As a response to the service request packet. When the data transmission parameter group of the replaced service bearer packet includes the source IP address B jp₂ , the source port number B_P2 , the transport layer protocol type X, the destination IP address A JM, and the destination port number A_P1 , The data transmission parameter set of the service response data packet will include B_IP2 , source port number B_P2 , transport layer protocol type X, destination IP address A n and destination port number A_P1 .

具体来说，业务处理模块 102可根据预先制定的业务控制策略（例如运营商预先制定的业务控制策略）和 /或用户签约的业务控制策略，对业务承载数据包的载荷数据（例如 OSI应用层数据）进行修改，例如进行协议转换、内容适配、内容过滤等。当然，业务处理单元 102也可不对载荷数据进行任何修改，这取决于预先制定的业务控制策略和 /或用户签约的业务控制策略。随后，业务处理单元 102根据记录的所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系，由所述替换后的业务承载数据包的数据传输参数组获得所述业务请求数据包的数据传输参数组，再根据所述业务请求数据包的数据传输参数组和上述载荷数据生成所述业务应答数据包。 Specifically, the service processing module 102 may load data of the service bearer data according to a pre-defined service control policy (such as a service control policy pre-defined by the operator) and/or a service control policy subscribed by the user (for example, an OSI application layer). Data) is modified, such as protocol conversion, content adaptation, content filtering, and so on. Of course, the service processing unit 102 may also not make any modifications to the payload data, depending on the pre-defined service control policy and/or the user-contracted service control policy. Then, the service processing unit 102 acquires a correspondence between the data transmission parameter group of the data packet and the data transmission parameter group of the service request data packet according to the recorded service, and the data transmission parameter of the replaced service bearer data packet The group obtains a data transmission parameter group of the service request data packet, and generates the service response data packet according to the data transmission parameter group of the service request data packet and the payload data.

具体来说，由于业务承载数据包是对替换后的业务获取数据包的应答，因此业务承载数据包的数据传输参数组与替换后的业务获取数据包的数据传输参数组是相互对应的。例如，业务承载数据包的源 IP地址和源端口号分别为替换后的业务获取数据包的目的 IP地址和目的端口号，业务承载数据包的目的 IP 地址和目的端口号分别为替换后的业务获取数据包的源 IP地址和源端口号，业务承载数据包的传输层协议类型与替换后的业务获取数据包的传输层协议类型相同。在这种情况下，在依据记录的源 IP地址和源端口号对业务承载数据包的目的 IP地址和目的端口号进行替换之后，替换后的业务承载数据包的数据传输参数组必然与业务获取数据包的数据传输参数组相对应。例如，替换后的业务承载数据包的源 IP地址和源端口号为业务获取数据包的目的 IP地址和目的端口号，替换后的业务承载数据包的目的 IP地址和目的端口号为业务获取数据包的源 IP地址和源端口号，替换后的业务承载数据包的传输层协议类型与业务获取数据包的传输层协议类型相同。这样一来，便可根据替换后的业务承载数据包的数据传输参数组与业务获取数据包的数据传输参数组之间的对应关系，结合记录的业务请求数据包的数据传输参数组与业务获取数据包的数据传输参数组之间的对应关系，由替换后的业务承载数据包的数据传输参数组获得所述业务请求数据包的数据传输参数组。Specifically, since the service bearer data packet is a response to the replaced service acquisition data packet, the data transmission parameter group of the service bearer data packet and the data transmission parameter group of the replaced service acquisition data packet correspond to each other. For example, the source IP address and the source port number of the service bearer data packet are respectively the destination IP address and the destination port number of the service acquisition data packet, and the destination IP address and the destination port number of the service bearer data packet are respectively replaced services. Obtain the source IP address and source port number of the data packet, the transport layer protocol type of the service bearer data packet, and the transport layer protocol type of the replaced service get data packet. the same. In this case, after the destination IP address and the destination port number of the service bearer data packet are replaced according to the source IP address and the source port number of the record, the data transmission parameter group of the replaced service bearer data packet is inevitably acquired with the service. The data transmission parameter set of the packet corresponds. For example, the source IP address and the source port number of the service bearer data packet are the destination IP address and the destination port number of the service acquisition data packet, and the destination IP address and the destination port number of the replaced service bearer data packet are service acquisition data. The source IP address and source port number of the packet. The transport layer protocol type of the replaced service bearer packet is the same as the transport layer protocol type of the service get packet. In this way, according to the correspondence between the data transmission parameter group of the replaced service bearer data packet and the data transmission parameter group of the service acquisition data packet, the data transmission parameter group and the service acquisition of the recorded service request data packet are combined. Corresponding relationship between the data transmission parameter groups of the data packet, and the data transmission parameter group of the service request data packet is obtained by the data transmission parameter group of the replaced service bearer data packet.

本领域的技术人员应当明白，由于生成的业务应答数据包是对上述业务请求数据包的应答，因此业务应答数据包的源 IP地址和源端口号为上述业务请求数据包的目的 IP地址和目的端口号，业务应答数据包的目的 IP地址和目的端口号为上述业务请求数据包的源 IP地址和源端口号，业务应答数据包的传输层协议类型与业务请求数据包的传输层协议类型相同。因此，在生成业务应答数据包时，业务处理单元 102使用记录的业务请求数据包的数据传输参数组中的源 IP地址和源端口号作为所述业务应答数据包的目的 IP地址和目的端口号，使用记录的业务请求数据包的数据传输参数组中的目的 IP 地址和目的端口号作为所述业务应答数据包的源 IP地址和源端口号，使用记录的业务请求数据包的传输层协议类型作为所述业务应答数据包的传输层协议类型。 Those skilled in the art should understand that since the generated service response data packet is a response to the service request data packet, the source IP address and the source port number of the service response data packet are the destination IP address and destination of the service request data packet. The port number, the destination IP address and the destination port number of the service response packet are the source IP address and the source port number of the service request packet, and the transport layer protocol type of the service response packet is the same as the transport layer protocol type of the service request packet. . Therefore, when generating the service response data packet, the service processing unit 102 uses the source IP address and the source port number in the data transmission parameter group of the recorded service request data packet as the destination IP address and the destination port number of the service response data packet. Using the destination IP address and destination port number in the data transmission parameter group of the recorded service request packet as the source IP address and source port number of the service response packet, and using the transport layer protocol type of the recorded service request packet The type of transport layer protocol that is the service response packet.

此外，业务处理模块 102还用于根据所述业务应答数据包进行业务处理，例如进行业务控制操作和 /或计费操作等。 In addition, the service processing module 102 is further configured to perform service processing according to the service response data packet, for example, perform a service control operation and/or a charging operation.

应注意，在生成业务应答数据包之后，业务处理模块 102会将记录的数据传输参数组删除。应注意，若生成的业务应答数据包有多个，则业务处理模块 It should be noted that after generating the service response data packet, the service processing module 102 deletes the recorded data transmission parameter set. It should be noted that if there are multiple service response data packets generated, the service processing module

102会在最后一个业务应答数据包生成之后，将记录的数据传输参数组删除。本发明实施例由业务处理单元执行地址替换操作，将业务获取数据包的源102 deletes the recorded data transmission parameter set after the last service response packet is generated. In the embodiment of the present invention, the service processing unit performs an address replacement operation, and the service obtains the source of the data packet.

IP地址和源端口号替换为该业务处理单元配置的 IP地址和端口号，因此作为对该业务获取数据包的应答的业务承载数据包可直接返回该业务处理单元，而无需经负载均衡单元转发。这样一来，负载均衡单元便可以仅负责向业务处理单元分发业务请求数据包，而不再参与移动终端和业务服务器之间后续业务数据的转发，因此可大大降低负载均衡单元的任务量，由此大大提高负载均衡单元以及业务控制网关的工作效率。此外，负载均衡单元以往执行的转发操作被多个业务处理单元执行的地址替换操作所取代，由于业务处理单元数量较多，并且有负载均衡单元在多个业务处理单元之间进行负载均衡调度，因此分摊到每一业务处理单元上的地址替换操作的任务量并不大，因此产生性能瓶颈的可能性要远小于负载均衡单元转发业务应答数据包时可能产生的性能瓶颈，并且可以通过简单的增加业务处理单元来进行扩容。The IP address and the source port number are replaced by the IP address and port number configured by the service processing unit. Therefore, the service bearer data packet as a response to the service packet can be directly returned to the service processing unit without being forwarded by the load balancing unit. . In this way, the load balancing unit can only be responsible for distributing the service request data packet to the service processing unit, and no longer participate in the forwarding of the subsequent service data between the mobile terminal and the service server, thereby greatly reducing the workload of the load balancing unit. This greatly improves the efficiency of the load balancing unit and the service control gateway. In addition, the forwarding operation performed by the load balancing unit in the past is replaced by an address replacement operation performed by multiple service processing units. Since the number of service processing units is large, and the load balancing unit performs load balancing scheduling among multiple service processing units, Therefore, the task of the address replacement operation allocated to each service processing unit is not large, so the possibility of generating a performance bottleneck is far less than the performance bottleneck that may occur when the load balancing unit forwards the service response packet, and can be simple. Add a service processing unit to expand capacity.

图 2是依据本发明一示范性实施例的业务控制网关 200的逻辑结构框图。如图 2所示，业务控制网关 200 包括负载均衡单元 202和多个业务处理单元 204〜208，其中，每一业务处理单元均配置有至少一个 IP地址。 2 is a block diagram showing the logical structure of a service control gateway 200 in accordance with an exemplary embodiment of the present invention. As shown in FIG. 2, the service control gateway 200 includes a load balancing unit 202 and a plurality of service processing units 204-208, wherein each service processing unit is configured with at least one IP address.

负载均衡单元 202用于接收业务请求数据包，根据预先设置的负载均衡策略在所述多个业务处理单元 204〜208中选择一业务处理单元（例如业务处理单元 206 )作为目标业务处理单元，将所述业务请求数据包转发给所述目标业务处理单元。应注意，本领域的技术人员应当明白，此处所说的转发是指在 OSI 数据链路层上执行的转发，即将封装有业务请求数据包的帧的源 MAC (媒体访问控制， Media Access Control )地址修改为负载均衡单元的 MAC地址，目的 MAC地址修改为业务处理单元的 MAC地址，从而将该帧从负载均衡单元 202 发送到目标业务处理单元。 The load balancing unit 202 is configured to receive a service request data packet, and select a service processing unit (for example, the service processing unit 206) as the target service processing unit among the plurality of service processing units 204 to 208 according to a preset load balancing policy. The service request data packet is forwarded to the target service processing unit. It should be noted that those skilled in the art should understand that the forwarding referred to herein refers to forwarding performed on the OSI data link layer, that is, the source MAC of the frame in which the service request packet is encapsulated (Media Access Control, Media Access Control) The address is modified to the MAC address of the load balancing unit, and the destination MAC address is modified to the MAC address of the service processing unit, thereby transmitting the frame from the load balancing unit 202 to the target service processing unit.

具体来说，在收到业务请求数据包后，负载均衡单元 202可首先根据所述业务请求数据包的源 IP地址在负载均衡对应表中查找对应的业务处理单元，在未找到所述业务处理单元时，根据所述负载均衡策略在所述多个业务处理单元 204〜208中选择所述业务处理单元作为所述目标业务处理单元，并将所述目标业务处理单元与所述源 IP地址之间的对应关系写入所述负载均衡对应表。而在找到所述业务处理单元时，将找到的所述业务处理单元作为所述目标业务处理单元。在具体实现过程中，上述负载均衡对应表可采用下列数据结构来实现：Specifically, after receiving the service request data packet, the load balancing unit 202 may first search for a corresponding service processing unit in the load balancing correspondence table according to the source IP address of the service request data packet, where the service processing is not found. Unit, according to the load balancing policy, in the plurality of service processing units The service processing unit is selected as the target service processing unit from 204 to 208, and the correspondence between the target service processing unit and the source IP address is written into the load balancing correspondence table. And when the service processing unit is found, the found service processing unit is used as the target service processing unit. In the specific implementation process, the foregoing load balancing correspondence table may be implemented by using the following data structures:

表 1 可选的，也可在网络接入服务器根据终端设备发出的接入请求向终端设备分配 IP地址后，由负载均衡单元针对该 IP地址分配固定的业务处理单元，并将该 IP 地址与该业务处理单元之间的对应关系写入上述负载均衡对应表。例如，在网络接入服务器向终端设备分配 IP地址后，网^^入服务器通过 Radius Table 1 Optionally, after the network access server allocates an IP address to the terminal device according to the access request sent by the terminal device, the load balancing unit allocates a fixed service processing unit for the IP address, and associates the IP address with the IP address. The correspondence between the service processing units is written in the load balancing correspondence table. For example, after the network access server assigns an IP address to the terminal device, the network enters the server through Radius.

(远程拨入用户认证月良务， Remote Authentication Dial In User Service )协议或者 Diameter (直径）协议将分配的 IP地址发送给业务控制网关中的负载均衡单元。在收到该 IP地址之后，负载均衡单元根据预先设置的负载均衡策略查找合适的业务处理单元，并将该 IP地址与该业务处理单元之间的对应关系写入负载均衡对应表。如此一来，在随后接收到来自上述终端设备的业务请求数据包后，负载均衡单元根据负载均衡对应表中记录的对应关系，直接将该业务请求数据包转发给对应的业务处理单元进行处理。而在终端设备下线时，网络接入服务器通过 Radius协议或者 Diameter协议向业务控制网关中的负载均衡单元发送包含下线终端设备的 IP地址的下线通知，再由负载均衡单元将负载均衡对应表中该 IP地址与对应业务处理单元之间的对应关系删除。The Remote Authentication Dial In User Service protocol or the Diameter protocol sends the assigned IP address to the load balancing unit in the Service Control Gateway. After receiving the IP address, the load balancing unit searches for a suitable service processing unit according to the preset load balancing policy, and writes the correspondence between the IP address and the service processing unit to the load balancing correspondence table. In this way, after receiving the service request data packet from the terminal device, the load balancing unit directly forwards the service request data packet to the corresponding service processing unit for processing according to the correspondence relationship recorded in the load balancing correspondence table. When the terminal device goes offline, the network access server sends a downline notification including the IP address of the offline terminal device to the load balancing unit in the service control gateway through the Radius protocol or the Diameter protocol, and then the load balancing unit performs load balancing correspondingly. The correspondence between the IP address and the corresponding service processing unit in the table is deleted.

在具体实现过程中，负载均衡单元 202可采用任意的负载均衡策略在业务处理单元 204〜208中选择合适的业务处理单元作为目标业务处理单元。例如，上述负载均衡策略可以是在业务处理单元 204〜208中选择负载最小（当前任务数最少）的业务处理单元作为目标业务处理单元。此外，上述负载均衡策略还可以是在业务处理单元 204〜208 中选择当前负载与额定负载比值小于预设阀值的业务处理单元作为目标业务处理单元。若当前负载与额定负载比值小于预设阀值的业务处理单元有多个，则可采用随机选取的方式从当前负载与额定负载比值小于预设阀值的多个业务处理单元中选择一业务处理单元作为目标业务处理单元。In a specific implementation process, the load balancing unit 202 may select an appropriate service processing unit as the target service processing unit in the service processing units 204 to 208 by using any load balancing policy. For example, the above load balancing policy may be that the load is selected in the service processing units 204 to 208 (current task) The least number of business processing units serve as the target business processing unit. In addition, the load balancing policy may be that the service processing units 204 to 208 select a service processing unit whose current load and rated load ratio are less than a preset threshold as the target service processing unit. If there are multiple service processing units whose current load and rated load ratio are less than the preset threshold, a random selection method may be used to select a service processing from multiple service processing units whose current load and rated load ratio are less than a preset threshold. The unit acts as the target business processing unit.

此外，在执行负载均衡操作时，负载均衡单元 202可以是 OSI传输层负载均衡单元，也可以是 OSI应用层负载均衡单元。 OSI传输层负载均衡单元主要分析业务请求数据包的源 IP地址和 /或目的 IP地址及传输层 TCP( Transmission Control Protocol, 传输控制协议） /UDP ( User Datagram Protocol, 用户数据报协议）的信息，以便对业务请求数据包进行均衡分发； OSI应用层负载均衡单元除支持 OSI传输层负载均衡单元的功能以外，还要分析具体业务所关心的应用层信息来对业务请求数据包进行均衡分发，例如解析 Radius或 Diameter协议报文中的用户标识及用户设备 IP地址、 HTTP ( Hypertext Transfer Protocol，超文本传输协议）报文中的 URI (统一资源标识符）或 Cookie (用户名密码信息）等信息，以便对业务请求数据包进行均衡分发。 In addition, when performing load balancing operations, the load balancing unit 202 may be an OSI transport layer load balancing unit or an OSI application layer load balancing unit. The OSI transport layer load balancing unit mainly analyzes the source IP address and/or the destination IP address of the service request packet and the transmission layer protocol (Transmission Control Protocol) / UDP (User Datagram Protocol) information. In order to distribute the service request data packet in a balanced manner, the OSI application layer load balancing unit not only supports the function of the OSI transport layer load balancing unit, but also analyzes the application layer information of the specific service to perform balanced distribution of the service request data packet, for example, Parsing the user ID and the user device IP address in the Radius or Diameter protocol packets, the URI (Uniform Resource Identifier) in the HTTP (Hypertext Transfer Protocol) message, or the cookie (user name and password information). In order to distribute the service request packets in a balanced manner.

具体来说，所述目标业务处理单元用于根据预先设置的业务策略，使用所述业务请求数据包生成所述业务获取数据包。此外，所述数据传输参数组包括源 IP地址、源端口号、目的 IP地址、目的端口号和传输层协议类型。 Specifically, the target service processing unit is configured to generate the service acquisition data packet by using the service request data packet according to a preset service policy. In addition, the data transmission parameter group includes a source IP address, a source port number, a destination IP address, a destination port number, and a transport layer protocol type.

记录所述业务获取数据包的数据传输参数组中的源 IP地址和源端口号，在所述至少一个 IP地址和多个端口号中分别选择一 IP地址和一端口号来对所述业务获取数据包的数据传输参数组中的源 IP地址和源端口号进行替换，记录替换后的业务获取数据包的数据传输参数组与所述记录的源 IP 地址和源端口号之间的对应关系，并发出替换后的业务获取数据包，其中，替换后的业务获取数据包的数据传输参数组是唯一的；以及接收作为对替换后的业务获取数据包的应答的业务承载数据包，根据所述记录的替换后的业务获取数据包的数据传输参数组与所述记录的源 IP地址和源端口号之间的对应关系，由所述业务承载数据包的数据传输参数组获得所述记录的源 IP地址和源端口号，依据记录的源 IP地址和源端口号替换所述业务承载数据包的目的 IP地址和目的端口号；Recording a source IP address and a source port number in the data transmission parameter group of the service acquisition data packet, and selecting an IP address and a port number in the at least one IP address and the multiple port numbers to obtain the service The source IP address and the source port number in the data transmission parameter group of the data packet are replaced, and the record is replaced. And the exchanged service obtains the correspondence between the data transmission parameter group of the data packet and the source IP address and the source port number of the record, and sends the replaced service acquisition data packet, where the replaced service obtains the data packet. The data transmission parameter set is unique; and receiving a service bearer data packet as a response to the replaced service acquisition data packet, and acquiring a data transmission parameter group of the data packet and the source of the record according to the recorded replaced service Corresponding relationship between the IP address and the source port number, the source IP address and the source port number of the record are obtained by the data transmission parameter group of the service bearer data packet, and the source IP address and the source port number are replaced according to the recorded source IP address and the source port number. The destination IP address and destination port number of the service bearer packet;

具体来说，根据记录的所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系，根据替换后的业务承载数据包的数据传输参数组获得所述业务请求数据包的数据传输参数组，并根据替换后的业务承载数据包和所述业务请求数据包的数据传输参数组生成业务应答数据包，并发送所述业务应答数据包，以作为对所述业务请求数据包的应答。 Specifically, the corresponding relationship between the data transmission parameter group of the service acquisition data packet and the data transmission parameter group of the service request data packet is obtained according to the data transmission parameter group of the replaced service bearer data packet. a data transmission parameter group of the service request data packet, and generating a service response data packet according to the replaced service bearer data packet and the data transmission parameter group of the service request data packet, and sending the service response data packet to serve as a The response of the service request packet.

目标业务处理单元相关操作的细节内容已经在图 1 中进行了详细的描述，因此此处不再赘述。 The details of the operations related to the target service processing unit have been described in detail in FIG. 1, and therefore will not be described herein.

应注意，虽然图 2所示的业务控制网关仅包含三个业务处理单元，但是本领域的技术人员应当明白，在具体实现过程中，业务处理单元的数量可根据具体的业务量随意设置。因此，图 2所示业务处理单元的数量仅用于举例，而并非用于限制本发明的范围。 It should be noted that although the service control gateway shown in FIG. 2 includes only three service processing units, those skilled in the art should understand that in a specific implementation process, the number of service processing units can be arbitrarily set according to a specific traffic volume. Thus, the number of service processing units shown in Figure 2 is for example only and is not intended to limit the scope of the invention.

在现有业务控制网关中，缺乏将业务承载数据包直接返回业务处理单元的有效手段，因此必须由负载均衡单元对业务请求数据包的源 IP地址与业务处理单元之间的对应关系进行记录并根据该对应关系进行转发，才能使作为对业务获取数据包（业务获取数据包是根据业务请求数据包生成的）的应答的业务承载数据包被发送到对应的业务处理单元。而在本发明实施例中，通过将业务获取数据包的源 IP地址和源端口号修改为业务处理单元配置的 IP地址和端口号，作为对业务获取数据包的应答的业务承载数据包可直接返回业务处理单元，而无需经负载均衡单元进行转发。如此一来便可降低负载均衡单元的处理量，提高整个业务控制网关的工作效率。In the existing service control gateway, there is no effective means for directly returning the service bearer data packet to the service processing unit. Therefore, the load balancing unit must record the correspondence between the source IP address of the service request data packet and the service processing unit. According to the correspondence, the service bearer data packet that is a response to the service acquisition data packet (the service acquisition data packet is generated according to the service request data packet) is transmitted to the corresponding service processing unit. In the embodiment of the present invention, by changing the source IP address and the source port number of the service acquisition data packet to the IP address and port number configured by the service processing unit, the service bearer data packet as a response to the service acquisition data packet may be directly Return to the business processing unit without forwarding via the load balancing unit. In this way, the processing capacity of the load balancing unit can be reduced, High overall business control gateway efficiency.

本发明实施例负载均衡单元在分发业务请求数据包时，首先在负载均衡单元中查找是否存在业务请求数据包的源 IP地址对应的业务处理单元，并在找到对应的业务处理单元时，将业务请求数据包发往找到的业务处理单元进行处理。如此一来，来自同一终端设备（由源 IP地址标识）的所有业务请求数据包将交由同一业务处理单元进行处理，从而有助于简化对终端设备进行的业务控制。例如，在由本发明实施例提供的业务控制网关对终端设备的业务访问行为进行计费时，通过将来自同一终端设备的所有业务请求数据包交由同一业务处理单元进行处理，可有效解决由不同业务处理单元处理来自同一终端设备的不同业务请求数据包时产生的计费操作需同步的问题，方便对业务设备进行统一计费。 When the service equalization unit distributes the service request data packet, the load balancing unit first searches the load balancing unit for the service processing unit corresponding to the source IP address of the service request data packet, and when the corresponding service processing unit is found, the service is used. The request packet is sent to the found service processing unit for processing. In this way, all service request packets from the same terminal device (identified by the source IP address) will be processed by the same service processing unit, thereby facilitating the simplified service control of the terminal device. For example, when the service control gateway provided by the embodiment of the present invention charges the service access behavior of the terminal device, by processing all the service request data packets from the same terminal device to the same service processing unit, the difference can be effectively solved. When the service processing unit processes different service request data packets from the same terminal device, the charging operation needs to be synchronized, which facilitates unified charging of the service device.

图 3是依据本发明一示范性实施例的业务控制网关的应用场景 300的示意图。如图 3所示，应用场景 300中示出了终端设备 302〜304，通信网络 306，业务控制网关 308和业务服务器 310〜314。其中，终端设备 302〜304以及业务服务器 310〜314均通过通信网络 306与业务控制网关 308通信连接，业务控制网关 308进一步包括负载均衡单元 3082以及业务处理单元 3084〜3088。 FIG. 3 is a schematic diagram of an application scenario 300 of a service control gateway, in accordance with an exemplary embodiment of the present invention. As shown in FIG. 3, terminal devices 302-304, communication network 306, service control gateway 308, and service servers 310-314 are shown in application scenario 300. The terminal devices 302-304 and the service servers 310-314 are all connected to the service control gateway 308 through the communication network 306. The service control gateway 308 further includes a load balancing unit 3082 and service processing units 3084~3088.

终端设备 302〜304之中的每一个用于发出业务请求数据包。有关终端设备生成并发出业务请求数据包以及该业务请求数据包中数据传输参数组的具体细节内容已经在上文结合图 1的描述中进行了详细的描述，因此此处不再赘述。 Each of the terminal devices 302 to 304 is for issuing a service request packet. The specific details of the terminal device generating and issuing the service request data packet and the data transmission parameter group in the service request data packet have been described in detail in the above description with reference to FIG. 1, and therefore will not be described herein.

业务控制网关 308用于接收业务请求数据包，由其负载均衡单元 3082将该业务请求数据包转发给业务处理单元 3084〜3088中一业务处理单元进行处理，由该业务处理单元生成业务获取数据包，并由该业务处理单元将该业务获取数据包发往业务服务器 310〜314其中之一。其中，业务处理单元生成的业务获取数据包的源 IP地址和源端口号为该业务处理单元配置的 IP地址和端口号。有关负载均衡单元 3082转发业务请求数据包，以及业务处理单元对业务请求数据包进行处理、生成业务获取数据包的内容已经在前文结合图 1和图 2进行了详细的描述，因此此处不再赘述。业务服务器 310〜314之中接收上述业务获取数据包的业务服务器用于对该业务获取数据包进行处理，生成作为应答的业务承载数据包。由于业务获取数据包的源 IP地址和源端口号为业务处理单元所配置的 IP地址和端口号，因此业务承载数据包的目的 IP 地址和目的端口号就是上述业务处理单元所配置的上述 IP地址和端口号。这样一来，该业务承载数据包将直接到达上述业务处理单元，而无需经过负载均衡单元 3082进行转发。上述业务处理单元在根据上述业务承载数据包生成业务应答数据包后，将该业务应答数据包返回终端设备。有关业务处理单元对业务承载数据包进行的处理已经在前文结合图 1和图 2进行了详细的描述，因此此处不再赘述。The service control gateway 308 is configured to receive the service request data packet, and the load balancing unit 3082 forwards the service request data packet to a service processing unit in the service processing unit 3084~3088 for processing, and the service processing unit generates a service acquisition data packet. And the service processing unit sends the service acquisition data packet to one of the service servers 310-314. The source IP address and the source port number of the service acquisition data packet generated by the service processing unit are the IP address and port number configured by the service processing unit. The content that the load balancing unit 3082 forwards the service request data packet and the service processing unit processes the service request data packet and generates the service acquisition data packet has been described in detail in the foregoing with reference to FIG. 1 and FIG. 2, so Narration. The service server that receives the service acquisition data packet among the service servers 310 to 314 is configured to process the service acquisition data packet to generate a service bearer data packet as a response. The source IP address and the source port number of the service data packet are the IP address and port number configured by the service processing unit. Therefore, the destination IP address and destination port number of the service bearer data packet are the foregoing IP address configured by the service processing unit. And port number. In this way, the service bearer data packet will directly reach the service processing unit without being forwarded by the load balancing unit 3082. After the service processing unit generates the service response data packet according to the service bearer data packet, the service processing unit returns the service response data packet to the terminal device. The processing performed by the service processing unit on the service bearer data packet has been described in detail in the foregoing with reference to FIG. 1 and FIG. 2, and therefore will not be described herein.

应注意，虽然图 3所示的应用场景 300中仅示出了两个终端设备，三个业务服务器，且业务控制网关仅包含三个业务处理单元，但是本领域的技术人员应当明白，在具体实现过程中，终端设备和业务服务器的数量均没有具体的限制，业务处理单元的数量也可根据具体的业务量随意设置。因此，图 3所示的应用场景 300中终端设备、业务服务器以及业务控制网关中的业务处理单元的具体数量仅用于举例，而并非用于限制本发明的范围。 It should be noted that although only two terminal devices, three service servers are shown in the application scenario 300 shown in FIG. 3, and the service control gateway includes only three service processing units, those skilled in the art should understand that During the implementation process, there is no specific limit on the number of terminal devices and service servers, and the number of service processing units can also be arbitrarily set according to specific traffic. Therefore, the specific number of service processing units in the terminal device, the service server, and the service control gateway in the application scenario 300 shown in FIG. 3 is for example only, and is not intended to limit the scope of the present invention.

图 4是依据本发明一示范性实施例的业务处理方法 400的流程图。业务处理方法 400与图 1中描述的业务处理单元相对应。 4 is a flow diagram of a service processing method 400 in accordance with an exemplary embodiment of the present invention. The business process method 400 corresponds to the business process unit depicted in FIG.

步骤 402，业务处理模块接收来自终端设备的业务请求数据包； Step 402: The service processing module receives a service request data packet from the terminal device.

具体来说，步骤 402还可进一步包括，业务处理模块根据所述业务请求数据包执行业务处理操作。 Specifically, the step 402 may further include: the service processing module performing a service processing operation according to the service request data packet.

步骤 404，业务处理模块根据所述业务请求数据包生成业务获取数据包，并记录所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系； Step 404: The service processing module generates a service acquisition data packet according to the service request data packet, and records a correspondence between a data transmission parameter group of the service acquisition data packet and a data transmission parameter array of the service request data packet.

具体来说，业务处理模块根据预先设置的业务策略，使用所述业务请求数据包生成所述业务获取数据包。 Specifically, the service processing module generates the service acquisition data packet by using the service request data packet according to a preset service policy.

此外，所述数据传输参数组包括源 IP地址、源端口号、目的 IP地址、目的端口号和传输层协议类型In addition, the data transmission parameter group includes a source IP address, a source port number, a destination IP address, and a destination. Port number and transport layer protocol type

步骤 406，地址转换模块记录所述业务获取数据包的数据传输参数组中的源 IP地址和源端口号； Step 406: The address conversion module records a source IP address and a source port number in a data transmission parameter group of the service acquisition data packet.

步骤 408，地址转换模块根据配置的至少一个 IP地址和多个端口号中分别选择一 IP地址和一端口号对所述业务获取数据包的数据传输参数组中的源 IP 地址和源端口号进行替换，并发出替换后的业务获取数据包到业务服务器，其中，替换后的业务获取数据包的数据传输参数组是唯一的； Step 408: The address translation module selects an IP address and a port number according to the configured at least one IP address and the plurality of port numbers, and performs source IP address and source port number in the data transmission parameter group of the service acquisition data packet. Substituting, and issuing the replaced service to obtain the data packet to the service server, where the data transmission parameter group of the replaced service acquisition data packet is unique;

步骤 410，地址转换模块从业务服务器接收作为对替换后的业务获取数据包的应答的业务承载数据包，根据所述记录的替换后的业务获取数据包的数据传输参数组与所述记录的源 IP地址和源端口号之间的对应关系，由所述业务承载数据包的数据传输参数组获得所述记录的源 IP地址和源端口号，依据记录的源 IP地址和源端口号替换所述业务^ ^载数据包的目的 IP地址和目的端口号；步骤 412，业务处理模块根据记录的所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系，由替换后的业务承载数据包的数据传输参数组获得所述业务请求数据包的数据传输参数组，并根据替换后的业务承载数据包和所述业务请求数据包的数据传输参数组生成业务应答数据包，并发送所述业务应答数据包给终端设备，以作为对所述业务请求数据包的应答。 Step 410: The address translation module receives, from the service server, a service bearer data packet that is a response to the replaced service acquisition data packet, and obtains a data transmission parameter group of the data packet according to the recorded replaced service and the source of the record. Corresponding relationship between the IP address and the source port number, the source IP address and the source port number of the record are obtained by the data transmission parameter group of the service bearer data packet, and the source IP address and the source port number are replaced according to the recorded source IP address and the source port number. The service ^ ^ carries the destination IP address and the destination port number of the data packet; Step 412: The service processing module acquires the correspondence between the data transmission parameter group of the data packet and the data transmission parameter group of the service request data packet according to the recorded service Obtaining, by the data transmission parameter group of the replaced service bearer data packet, a data transmission parameter group of the service request data packet, and generating a service according to the replaced service bearer data packet and the data transmission parameter group of the service request data packet Responding to the data packet, and sending the service response data packet to the terminal device Service request response data packet.

具体来说，步骤 412还可进一步包括，业务处理模块根据替换后的业务应答数据包执行业务处理操作。 Specifically, the step 412 may further include: the service processing module performing a service processing operation according to the replaced service response data packet.

业务处理方法 400各步骤的细节内容已经在前文结合图 1进行的描述中进行了详细的介绍，因此此处不再赘述。 The details of each step of the service processing method 400 have been described in detail in the foregoing description with reference to Fig. 1, and therefore will not be described again here.

图 5是依据本发明一示范性实施例的负载均衡方法 500的流程图。负载均衡方法 500应用于图 2中描述的业务控制网关。如上文所述，业务控制网关包含负载均衡单元和多个业务处理单元，其中，每一业务处理单元配置有至少一个 IP地址。步骤 502，负载均衡单元接收业务请求数据包，根据预先设置的负载均衡策略在所述多个业务处理单元中选择一业务处理单元作为目标业务处理单元，将所述业务请求数据包转发给所述目标业务处理单元；FIG. 5 is a flow diagram of a load balancing method 500 in accordance with an exemplary embodiment of the present invention. The load balancing method 500 is applied to the traffic control gateway depicted in FIG. As described above, the service control gateway includes a load balancing unit and a plurality of service processing units, wherein each of the service processing units is configured with at least one IP address. Step 502: The load balancing unit receives the service request data packet, selects a service processing unit among the multiple service processing units as the target service processing unit according to the preset load balancing policy, and forwards the service request data packet to the Target business processing unit;

具体来说，步骤 502还可进一步包括，负载均衡单元根据所述业务请求数据包的源 IP地址在负载均衡对应表中查找对应的业务处理单元，在未找到所述业务处理单元时，根据所述负载均衡策略在所述多个业务处理单元中选择所述业务处理单元作为所述目标业务处理单元，并将所述目标业务处理单元与所述源 IP地址之间的对应关系写入所述负载均衡对应表。负载均衡单元在所述负载均衡对应表中找到所述业务处理单元时，将所述业务处理单元作为所述目标业务处理单元。 Specifically, the step 502 may further include: the load balancing unit searching for the corresponding service processing unit in the load balancing correspondence table according to the source IP address of the service request data packet, where the service processing unit is not found, according to the The load balancing policy selects the service processing unit as the target service processing unit among the plurality of service processing units, and writes a correspondence between the target service processing unit and the source IP address into the Load balancing correspondence table. When the load balancing unit finds the service processing unit in the load balancing correspondence table, the service processing unit is used as the target service processing unit.

步骤 504，目标业务处理单元接收来自负载均衡单元的业务请求数据包；步骤 506，目标业务处理单元根据所述业务请求数据包生成业务获取数据包，并记录所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系； Step 504: The target service processing unit receives the service request data packet from the load balancing unit. Step 506: The target service processing unit generates a service acquisition data packet according to the service request data packet, and records a data transmission parameter of the service acquisition data packet. The correspondence between the group and the data transmission parameter group of the service request packet;

具体来说，目标业务处理单元根据预先设置的业务策略，使用所述业务请求数据包生成所述业务获取数据包。 Specifically, the target service processing unit generates the service acquisition data packet by using the service request data packet according to a preset service policy.

此外，所述数据传输参数组包括源 IP地址、源端口号、目的 IP地址、目的端口号和传输层协议类型。 In addition, the data transmission parameter group includes a source IP address, a source port number, a destination IP address, a destination port number, and a transport layer protocol type.

步骤 508，目标业务处理单元记录业务获取数据包的数据传输参数组中的源 IP地址和源端口号； Step 508: The target service processing unit records a source IP address and a source port number in a data transmission parameter group of the service acquisition data packet.

步骤 510，目标业务处理单元在所述至少一个 IP地址和多个端口号中分别选择一 IP 地址和一端口号来对所述业务获取数据包的数据传输参数组中的源 IP地址和源端口号进行替换，记录替换后的业务获取数据包的数据传输参数组与所述记录的源 IP地址和源端口号之间的对应关系，并发出替换后的业务获取数据包到业务服务器，其中，替换后的业务获取数据包的数据传输参数组是唯一的；步骤 512，目标业务处理单元接收作为对替换后的业务获取数据包的应答的业务承载数据包，根据所述记录的替换后的业务获取数据包的数据传输参数组与所述记录的源 IP地址和源端口号之间的对应关系，由所述业务承载数据包的数据传输参数组获得所述记录的源 IP地址和源端口号，依据记录的源 IP地址和源端口号替换所述业务承载数据包的目的 IP地址和目的端口号；Step 510: The target service processing unit selects an IP address and a port number in the at least one IP address and the multiple port numbers respectively to obtain a source IP address and a source port in a data transmission parameter group of the data packet. The replacement is performed, and the correspondence between the data transmission parameter group of the service acquisition data packet and the source IP address and the source port number of the record is recorded, and the replaced service acquisition data packet is sent to the service server, where The data transmission parameter set of the replaced service acquisition data packet is unique; Step 512: The target service processing unit receives a service bearer data packet as a response to the replaced service data packet, and obtains a data transmission parameter group of the data packet and the source IP address of the record according to the recorded replaced service. Corresponding to the source port number, the source IP address and the source port number of the record are obtained by the data transmission parameter group of the service bearer data packet, and the service bearer is replaced according to the source IP address and the source port number of the record. Destination IP address and destination port number of the packet;

步骤 514，目标业务处理单元根据记录的所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系，由替换后的业务承载数据包的数据传输参数组获得所述业务请求数据包的数据传输参数组，并根据替换后的业务承载数据包和所述业务请求数据包的数据传输参数组生成业务应答数据包，并发送所述业务应答数据包到终端设备，以作为对所述业务请求数据包的应答。 Step 514: The target service processing unit acquires a correspondence between a data transmission parameter group of the data packet and a data transmission parameter group of the service request data packet according to the recorded service, and the data transmission parameter group of the replaced service bearer data packet Obtaining a data transmission parameter group of the service request data packet, and generating a service response data packet according to the replaced service bearer data packet and the data transmission parameter group of the service request data packet, and sending the service response data packet to the terminal The device, in response to the service request packet.

负载均衡方法 500各步骤的细节内容已经在前文结合图 2进行的描述中进行了详细的介绍，因此此处不再赘述。 The details of each step of the load balancing method 500 have been described in detail in the foregoing description with reference to Fig. 2, and therefore will not be described again here.

应注意，尽管上述实施例都是以终端设备向业务服务器发起业务请求为例进行描述的，但是本领域的技术人员应当明白，对业务服务器主动向终端设备发起服务请求的情形，本发明实施例提供的技术方案也同样适用。 It should be noted that although the above embodiments are described by taking the terminal device as a service request to the service server, the person skilled in the art should understand that the service server actively initiates a service request to the terminal device, and the embodiment of the present invention The technical solutions provided are also applicable.

本领域普通技术人员可知，上述方法中的全部或部分步骤可以通过程序指令相关的硬件完成，该程序可以存储于一计算机可读存储介质中，该计算机可读存储介质如 ROM、 RAM和光盘等。 A person skilled in the art may know that all or part of the above steps may be completed by hardware related to program instructions, and the program may be stored in a computer readable storage medium such as a ROM, a RAM, an optical disc, or the like. .

综上所述，以上仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 In conclusion, the above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权利要求书 Claim

1、一种业务处理单元，其特征在于，所述业务处理单元配置有至少一个网际协议 IP地址，包括： A service processing unit, wherein the service processing unit is configured with at least one internet protocol IP address, including:

2、如权利要求 1所述的业务处理单元，其特征在于，所述业务处理模块用于根据预先设置的业务策略，使用所述业务请求数据包生成所述业务获取数据包； The service processing unit according to claim 1, wherein the service processing module is configured to generate the service acquisition data packet by using the service request data packet according to a preset service policy;

所述数据传输参数组包括源 IP地址、源端口号、目的 IP地址、目的端口号和传输层协议类型。The data transmission parameter group includes a source IP address, a source port number, a destination IP address, and a destination port. Number and transport layer protocol type.

3、一种业务控制网关，其特征在于，包括： 3. A service control gateway, characterized in that:

多个业务处理单元，每一业务处理单元配置有至少一个 IP地址； a plurality of service processing units, each of which is configured with at least one IP address;

负载均衡单元，用于接收业务请求数据包，根据预先设置的负载均衡策略在所述多个业务处理单元中选择一业务处理单元作为目标业务处理单元，将所述业务请求数据包转发给所述目标业务处理单元； a load balancing unit, configured to receive a service request data packet, select a service processing unit among the plurality of service processing units as a target service processing unit according to a preset load balancing policy, and forward the service request data packet to the Target business processing unit;

根据记录的所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系，由替换后的业务承载数据包的数据传输参数组获得所述业务请求数据包的数据传输参数组，并根据替换后的业务承载数据包和所述业务请求数据包的数据传输参数组生成业务应答数据包，并发送所述业务应答数据包，以作为对所述业务请求数据包的应答。Obtaining, according to the recorded correspondence between the data transmission parameter group of the data packet and the data transmission parameter group of the service request data packet, obtaining the service request data packet by the data transmission parameter group of the replaced service bearer data packet And a data transmission parameter group, and generating a service response data packet according to the replaced service bearer data packet and the data transmission parameter group of the service request data packet, and sending the service response data packet as the data for the service request The response of the package.

4、如权利要求 3所述的业务控制网关，其特征在于，所述负载均衡单元还用于根据所述业务请求数据包的源 IP 地址在负载均衡对应表中查找对应的业务处理单元，在未找到所述业务处理单元时，根据所述负载均衡策略在所述多个业务处理单元中选择所述业务处理单元作为所述目标业务处理单元，并将所述目标业务处理单元与所述源 IP 地址之间的对应关系写入所述负载均衡对应表；在找到所述业务处理单元时，将所述业务处理单元作为所述目标业务处理单元。The service control gateway according to claim 3, wherein the load balancing unit is further configured to search for a corresponding service processing unit in the load balancing correspondence table according to the source IP address of the service request data packet, where When the service processing unit is not found, the service processing unit is selected as the target service processing unit among the plurality of service processing units according to the load balancing policy, and the target service processing unit and the source are The correspondence between the IP addresses is written into the load balancing correspondence table; when the service processing unit is found, the service processing unit is used as the target service processing unit.

5、如权利要求 3或 4所述的业务控制网关，其特征在于， 5. The service control gateway according to claim 3 or 4, characterized in that

所述目标业务处理单元用于根据预先设置的业务策略，使用所述业务请求数据包生成所述业务获取数据包； The target service processing unit is configured to generate the service acquisition data packet by using the service request data packet according to a preset service policy;

所述数据传输参数组包括源 IP地址、源端口号、目的 IP地址、目的端口号和传输层协议类型。 The data transmission parameter set includes a source IP address, a source port number, a destination IP address, a destination port number, and a transport layer protocol type.

6、一种业务处理方法，其特征在于，包括： 6. A service processing method, characterized in that:

记录所述业务获取数据包的数据传输参数组中的源 IP地址和源端口号，在所述至少一个 IP地址和多个端口号中分别选择一 IP地址和一端口号来对所述业务获取数据包的数据传输参数组中的源 IP地址和源端口号进行替换，记录替换后的业务获取数据包的数据传输参数组与所述记录的源 IP 地址和源端口号之间的对应关系，并发出替换后的业务获取数据包，其中，替换后的业务获取数据包的数据传输参数组是唯一的；以及接收作为对替换后的业务获取数据包的应答的业务承载数据包，根据所述记录的替换后的业务获取数据包的数据传输参数组与所述记录的源 IP地址和源端口号之间的对应关系，由所述业务承载数据包的数据传输参数组获得记录的源 IP地址和源端口号，依据记录的源 IP 地址和源端口号替换所述业务承载数据包的目的 IP地址和目的端口号；根据记录的所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系，由替换后的业务承载数据包的数据传输参数组获得所述业务请求数据包的数据传输参数组，并根据替换后的业务承载数据包和所述业务请求数据包的数据传输参数组生成业务应答数据包，并发送所述业务应答数据包，以作为对所述业务请求数据包的应答。Recording a source IP address and a source port number in the data transmission parameter group of the service acquisition data packet, and selecting an IP address and a port number in the at least one IP address and the multiple port numbers to obtain the service The source IP address and the source port number in the data transmission parameter group of the data packet are replaced, and the correspondence between the data transmission parameter group of the replaced service acquisition data packet and the source IP address and the source port number of the record is recorded. And sending the replaced service acquisition data packet, where the data transmission parameter group of the replaced service acquisition data packet is unique; and receiving the service bearer data packet as a response to the replaced service acquisition data packet, according to the Corresponding relationship between the data transmission parameter group of the replaced service acquisition data packet and the source IP address and the source port number of the record, and the source IP address of the record obtained by the data transmission parameter group of the service bearer data packet And the source port number, replacing the destination IP address and the destination port number of the service bearer packet according to the source IP address and the source port number of the record; Obtaining, according to the recorded correspondence between the data transmission parameter group of the data packet and the data transmission parameter group of the service request data packet, obtaining the service request data packet by the data transmission parameter group of the replaced service bearer data packet And a data transmission parameter group, and generating a service response data packet according to the replaced service bearer data packet and the data transmission parameter group of the service request data packet, and sending the service response data packet as the data for the service request The response of the package.

7、如权利要求 6所述的业务处理方法，其特征在于，还包括，所述根据所述业务请求数据包生成业务获取数据包进一步包括，根据预先设置的业务策略，使用所述业务请求数据包生成所述业务获取数据包； The service processing method according to claim 6, further comprising: generating the service acquisition data packet according to the service request data packet, further comprising: using the service request data according to a preset service policy The packet generates the service acquisition data packet;

8、一种负载均衡方法，其特征在于，所述负载均衡方法应用于业务控制网关，所述业务控制网关包含负载均衡单元和多个业务处理单元，其中，每一业务处理单元配置有至少一个 IP地址，所述方法包括： A load balancing method, wherein the load balancing method is applied to a service control gateway, where the service control gateway includes a load balancing unit and a plurality of service processing units, wherein each service processing unit is configured with at least one IP address, the method includes:

所述目标业务处理单元接收业务请求数据包，根据所述业务请求数据包生成业务获取数据包，并记录所述业务获取数据包的数据传输参数组与业务请求数据包的数据传输参数组之间的对应关系； Receiving, by the target service processing unit, a service request data packet, generating a service acquisition data packet according to the service request data packet, and recording a data transmission parameter group of the service acquisition data packet and a data transmission parameter group of the service request data packet Correspondence relationship;

所述目标业务处理单元记录所述业务获取数据包的数据传输参数组中的源 IP地址和源端口号，在所述至少一个 IP地址和多个端口号中分别选择一 IP地址和一端口号来对所述业务获取数据包的数据传输参数组中的源 IP 地址和源端口号进行替换，记录替换后的业务获取数据包的数据传输参数组与所述记录的源 IP地址和源端口号之间的对应关系，并发出替换后的业务获取数据包，其中，替换后的业务获取数据包的数据传输参数组是唯一的；以及接收作为对替换后的业务获取数据包的应答的业务承载数据包，根据所述记录的替换后的业务获取数据包的数据传输参数组与所述记录的源 IP 地址和源端口号之间的对应关系，由所述业务承载数据包的数据传输参数组获得记录的源 IP地址和源端口号，依据记录的源 IP地址和源端口号替换所述业务承载数据包的目的 IP地址和目的端口号；The target service processing unit records a source IP address and a source port number in a data transmission parameter group of the service acquisition data packet, and selects an IP address and a port number in the at least one IP address and the plurality of port numbers respectively. And replacing the source IP address and the source port number in the data transmission parameter group of the service acquisition data packet, and recording the data transmission parameter group of the replaced service acquisition data packet and the source IP address and the source port number of the record. Corresponding relationship, and sending the replaced service acquisition data packet, wherein the data transmission parameter group of the replaced service acquisition data packet is unique; and receiving the service bearer as a response to the replaced service acquisition data packet Packet, based on the recorded replacement business Obtaining a correspondence between a data transmission parameter group of the data packet and a source IP address and a source port number of the record, and obtaining a source IP address and a source port number of the record by the data transmission parameter group of the service bearer data packet, Substituting the destination IP address and the destination port number of the service bearer data packet according to the source IP address and the source port number of the record;

9、如权利要求 8所述的方法，其特征在于，所述方法还包括所述负载均衡单元根据所述业务请求数据包的源 IP 地址在负载均衡对应表中查找对应的业务处理单元，在未找到所述业务处理单元时，根据所述负载均衡策略在所述多个业务处理单元中选择所述业务处理单元作为所述目标业务处理单元，并将所述目标业务处理单元与所述源 IP 地址之间的对应关系写入所述负载均衡对应表；当在所述负载均衡对应表中找到所述业务处理单元时，将所述业务处理单元作为所述目标业务处理单元。 The method according to claim 8, wherein the method further comprises: the load balancing unit searching for a corresponding service processing unit in the load balancing correspondence table according to the source IP address of the service request data packet, When the service processing unit is not found, the service processing unit is selected as the target service processing unit among the plurality of service processing units according to the load balancing policy, and the target service processing unit and the source are The correspondence between the IP addresses is written into the load balancing correspondence table. When the service processing unit is found in the load balancing correspondence table, the service processing unit is used as the target service processing unit.

10、如权利要求 8或 9所述的方法，其特征在于，所述根据所述业务请求数据包生成业务获取数据包进一步包括，根据预先设置的业务策略，使用所述业务请求数据包生成所述业务获取数据包； The method according to claim 8 or 9, wherein the generating the service acquisition data packet according to the service request data packet further comprises: generating the location by using the service request data packet according to a preset service policy The service obtains a data packet;