WO2021121286A1 - 数据传输方法、装置、计算机设备和存储介质 - Google Patents
数据传输方法、装置、计算机设备和存储介质 Download PDFInfo
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- WO2021121286A1 WO2021121286A1 PCT/CN2020/136919 CN2020136919W WO2021121286A1 WO 2021121286 A1 WO2021121286 A1 WO 2021121286A1 CN 2020136919 W CN2020136919 W CN 2020136919W WO 2021121286 A1 WO2021121286 A1 WO 2021121286A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/255—Maintenance or indexing of mapping tables
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- This application relates to the field of communication technology, in particular to a data transmission method, device, computer equipment and storage medium.
- the terminal cannot perform traditional Ethernet services, such as Address Resolution Protocol (ARP), Reverse Address Resolution Protocol (RARP) services, etc. These services are all in the 5G system. Supported.
- ARP Address Resolution Protocol
- RARP Reverse Address Resolution Protocol
- the existing 5G base station has a time delay problem in responding to the ARP/RARP service in the Ethernet session.
- an embodiment of the present application provides a data transmission method, the method including:
- the uplink data is ARP/RARP request data
- obtain the first address to be queried in the ARP/RARP request data includes the IP address to be queried or the MAC address to be queried;
- the address mapping table includes the mapping relationship between multiple MAC addresses and IP addresses
- the second address exists in the address mapping table, the second address is sent to the PDCP module.
- the second address is a MAC address
- the first address to be queried is an IP address
- the second address is an IP address
- the method before querying the second address corresponding to the first address to be queried from the preset address mapping table, the method further includes:
- the uplink data is sent to the GTP module.
- the method before obtaining the first address to be queried in the ARP/RARP request data, the method includes:
- the uplink data is ARP/RARP request data, perform the step of obtaining the first address to be queried in the ARP/RARP request data;
- the uplink data is sent to the GTP module.
- determining whether the uplink data is an Ethernet session includes: if the bearer type of the uplink data is a bearer type corresponding to the Ethernet session, determining that the uplink data is an Ethernet session.
- determining whether the uplink data is ARP/RARP request data includes: if the data type identifier carried in the uplink data is an identifier corresponding to the ARP/RARP request data, determining that the uplink data is ARP/RARP request data.
- the method further includes:
- the address mapping table is updated.
- the method further includes:
- the address mapping table is updated.
- the method before obtaining the original MAC and the corresponding source IP address in the downlink data, the method includes:
- an embodiment of the present application provides a data transmission device, which includes:
- the receiving module is used to receive the uplink data sent by the PDCP module
- the obtaining module is used to obtain the first address to be queried in the ARP/RARP request data if the uplink data is ARP/RARP request data, and the first address to be queried includes the IP address to be queried or the MAC address to be queried;
- the query module is used to query the second address corresponding to the first address to be queried from the preset address mapping table;
- the address mapping table includes a plurality of mapping relationships between MAC addresses and IP addresses;
- the sending module is configured to send the second address to the PDCP module if there is a second address in the address mapping table.
- an embodiment of the present application provides a computer device, including a memory and a processor, the memory stores a computer program, and the processor implements the steps of any one of the methods provided in the embodiments of the first aspect when the processor executes the computer program.
- an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of any one of the methods provided in the above-mentioned embodiments of the first aspect are implemented.
- the mapping unit maps the MAC address to the IP address based on the received data Stored in the address mapping table, when the received data is ARP/RARP request data, you only need to query the address mapping table whether there is a corresponding mapping relationship for the address to be queried, and when there is a corresponding mapping relationship, proceed directly according to the query result Response is equivalent to that the mapping unit performs data monitoring, self-learning, and builds a mapping table between internal MAC addresses and IP addresses.
- the terminal initiates a corresponding query request, it is the first to look up its own mapping table, and directly give the terminal response service when it exists. This greatly reduces the latency of business response and improves customer experience.
- FIG. 1 is an application environment diagram of a data transmission method provided by an embodiment
- FIG. 2 is a schematic flowchart of a data transmission method provided by an embodiment
- Figure 2a is a schematic diagram of various data transmission modules provided by an embodiment
- FIG. 3 is a schematic flowchart of a data transmission method provided by an embodiment
- FIG. 4 is a schematic flowchart of a data transmission method provided by an embodiment
- FIG. 5 is a schematic flowchart of a data transmission method provided by an embodiment
- FIG. 6 is a schematic flowchart of a data transmission method provided by an embodiment
- FIG. 7 is a complete schematic diagram of an uplink data transmission method provided by an embodiment
- FIG. 8 is a complete schematic diagram of an uplink data transmission method provided by an embodiment
- FIG. 9 is a structural block diagram of a data transmission device according to an embodiment.
- FIG. 10 is a structural block diagram of a data transmission device according to an embodiment
- FIG. 11 is a structural block diagram of a data transmission device provided by an embodiment
- Fig. 12 is a diagram of the internal structure of a computer device in an embodiment.
- the data transmission method provided by this application can be applied to the application environment as shown in FIG. 1, where the 5G core network includes core network equipment, the 5G access network includes 5G base stations and 4G base stations, and the user terminal equipment and The base station performs data exchange.
- the user terminal can be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices.
- the user terminal device sends each service data to the 5G core network through the 5G access network, where the data transmission method provided in this application is implemented when the 5G access network and the 5G core network perform data interaction.
- the 5G base station includes the Service Data Adaptation Protocol (SDAP) module, the Packet Data Convergence Protocol (PDCP) module, and the GPRS Tunnelling Protocol (GTP) module.
- SDAP Service Data Adaptation Protocol
- PDCP Packet Data Convergence Protocol
- GTP GPRS Tunnelling Protocol
- a mapping unit is set in the SDAP module in the base station, and the mapping unit is used to execute the data transmission method provided in this application.
- the embodiments of the present application provide a data transmission method, device, computer equipment, and storage medium, aiming to solve the problem of delay in the response of the existing 5G base station to the ARP/RARP service in the Ethernet session.
- the technical solution of the present application and how the technical solution of the present application solves the above technical problems will be described in detail through the embodiments and the accompanying drawings.
- the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
- the execution body of FIG. 2 to FIG. 8 is a mapping unit, where the execution body may also be a data transmission device or a base station, and the mapping unit or data transmission device may Realize part or all of the base station through software, hardware, or a combination of software and hardware.
- FIG. 2 provides a data transmission method. This embodiment relates to the specific process of the mapping unit processing the uplink data when the uplink data is ARP/RARP request data, as shown in FIG. 2.
- the method includes:
- S101 Receive uplink data sent by the PDCP module.
- Uplink data represents data sent from the mobile terminal and transmitted to the Internet server.
- the uplink data can be any data type, function, and data carrying any related information, for example, it can be various service data related to the mobile phone terminal such as signaling data and IP data.
- the mapping unit set in the SDAP module receives the uplink data.
- an ARP/RARP service in which data transmitted between a mobile phone terminal and a 5G base station is an Ethernet session is taken as an example for description.
- the uplink data is ARP/RARP request data
- the ARP request data represents the address resolution protocol (Address Resolution Protocol, ARP), which is a TCP/IP protocol that obtains the physical address based on the IP address, that is, the ARP command can be used to query the correspondence between the IP address and the MAC address in the local ARP cache , Add or delete static correspondences, etc.;
- RARP request data represents Reverse Address Resolution Protocol (RARP), which is a reverse ARP request, that is, a TCP/IP protocol that obtains an IP address based on a MAC address.
- RARP Reverse Address Resolution Protocol
- the mapping unit Based on the uplink data received by the above mapping unit, if the uplink data belongs to ARP/RARP request data, the mapping unit obtains the first address to be queried in the ARP/RARP request data.
- the first address to be queried is different for different requests.
- the first address to be queried is the IP address to be queried
- RARP request data the first address to be queried is the IP address to be queried.
- S103 Query the second address corresponding to the first address to be queried from the preset address mapping table; the address mapping table includes a plurality of mapping relationships between MAC addresses and IP addresses.
- the address mapping table is a pre-established table for storing the mapping relationship between the MAC address and the IP address.
- the address mapping table is updated and maintained during the data transmission process between the mobile phone terminal and the base station. It is understandable that in the first data transmission process after the address mapping table is established, the mapping unit starts to store the mapping relationship between the MAC address and the IP address in each received data in the address mapping table.
- the mapping unit queries the second address corresponding to the first address to be queried from the preset address mapping table, where the second address is the address corresponding to the first address to be queried, optionally, if If the first address to be queried is an IP address, the second address is a MAC address; if the first address to be queried is a MAC address, then the second address is an IP address.
- the address mapping table is in a state of real-time storage and update, there are two situations in which the corresponding second address is queried from the first mapping table and the corresponding second address is not queried during the query.
- the mapping unit In view of the existence of the second address corresponding to the first address to be queried in the address mapping table, the mapping unit directly responds to the message with the second address according to the found mapping information component, that is, processes the message according to the SDAP protocol, and then transfers the message Delivered to the PDCP module.
- the mapping unit since the address mapping table is established in the SDAP module of the base station in advance, the mapping unit stores the mapping relationship between the MAC address and the IP address in the address mapping table according to the received data.
- the mapping unit When requesting data for ARP/RARP, you only need to query the address mapping table whether there is a corresponding mapping relationship for the address to be queried, and when there is a corresponding mapping relationship, respond directly according to the query result, which is equivalent to that the mapping unit performs data monitoring, Self-learning, build the internal MAC address and IP address mapping table, when the terminal initiates the corresponding query request, the first to look up its own mapping table, and directly give the terminal response service when it exists, which greatly reduces the delay of business response and improves Customer Experience.
- the method further includes: if the second address does not exist in the address mapping table Address, send the uplink data to the GTP module.
- this application provides a corresponding embodiment for specific description.
- the steps include:
- the mapping unit judges whether the uplink data is an Ethernet session. The subsequent steps will only be executed if the uplink data is an Ethernet session. Otherwise, if the uplink data is not an Ethernet session, it will directly The uplink data is transmitted according to the original path, that is, transmitted to the GTP module.
- a way to determine whether the uplink data is an Ethernet session includes: if the bearer type of the uplink data is a bearer type corresponding to the Ethernet session, determining that the uplink data is an Ethernet session. That is, the mapping unit determines whether the bearer type of the uplink data is the bearer type corresponding to the Ethernet session, and if so, determines that the uplink data is an Ethernet session.
- the mapping unit continues to determine whether the uplink data is ARP/RARP request data. If it is ARP/RARP request data, perform step S203, that is, perform subsequent data transmission according to the methods provided in steps S103 and S104; if it is not ARP/RARP request data, perform step S204, that is, perform transmission according to the original path, and perform the uplink The data is transferred to the GTP module.
- S203 Acquire the first address to be queried in the ARP/RARP request data.
- S204 Send the uplink data to the GTP module.
- a way to determine whether the uplink data is ARP/RARP request data includes: if the data type identifier carried in the uplink data is the identifier corresponding to the ARP/RARP request data, then determining that the uplink data is ARP/RARP request data.
- the mapping unit determines the data type identifier carried in the data packet of the uplink data, and the data type identifier is consistent with the identifier corresponding to the ARP/RARP request data, and then determines that the uplink data is the ARP/RARP request data.
- the uplink data after receiving the uplink data, it is first judged whether the uplink data is ARP/RARP request data. If it is ARP/RARP request data, the step of looking up the address mapping table is executed, if it is not ARP/RARP The requested data is transmitted according to the original transmission path. In this way, the received uplink data is processed only when the data type needs to be processed, which avoids waste of resources and improves the efficiency of data transmission.
- this application also provides an embodiment for updating the above address mapping table.
- the process of updating the address mapping table includes two types, one is to update the above uplink data, and the other is to update the downlink data received by the mapping unit. Update.
- the process of updating the address mapping table according to the above uplink data includes:
- the mapping unit obtains the original MAC carried in the uplink data and the corresponding source IP address from the uplink data, that is, the MAC of the uplink data itself and the corresponding IP address.
- the process of updating the address mapping table according to the downlink data includes:
- S401 Receive downlink data sent by the GTP module.
- This embodiment is a process in which the mapping unit updates the address mapping table according to the downlink data. Therefore, it is necessary to first receive the downlink data sent by the GTP module.
- the downlink data can refer to the data transmitted to the mobile phone terminal in the above-mentioned Figure 2a.
- S402 Acquire the original MAC and the corresponding source IP address in the downlink data.
- the MAC and the corresponding IP address carried in the downlink data are obtained from the downlink data, and the MAC and the corresponding IP address are updated in the stored value address mapping table.
- the address mapping table needs to be updated according to the MAC and the corresponding IP address carried in the data to ensure that the address mapping table is The data is valid and comprehensive.
- the mapping unit needs to first determine whether the downlink data is a response to the ARP/RARP request.
- Data optionally, as shown in Figure 6, the method includes:
- S501 Determine whether the downlink data is the response data of the ARP/RARP request.
- the judgment method can refer to the judgment method provided in the embodiment of FIG. 3, in practical applications, other methods can also be used for judgment, which is not limited in this embodiment. . If the result of the judgment is that the downlink data is the response data of the ARP/RARP request, step S502 is executed, and if the result of the judgment is that the downlink data is not the response data of the ARP/RARP request, step S503 is executed.
- S502 Acquire the original MAC and the corresponding source IP address in the downlink data.
- step S402 that is, if the judgment result is that the downlink data is the response data of the ARP/RARP request, step S402 is executed.
- S503 Send the downlink data to the PDCP module.
- the downlink data is sent to the PDCP module, that is, it does not need to do any processing according to the downlink data, and the transmission can be carried out according to the original path.
- the downlink data after receiving the downlink data, it is first confirmed whether the downlink data is a data type that needs to be processed, if not, it is directly transmitted according to the original path, which greatly saves resources and improves data transmission efficiency.
- this application provides a complete process of uplink data and downlink data, and the uplink transmission execution steps include:
- S11 receive the uplink data transmitted from the PDCP module, and transfer to S12;
- S12 Judge whether the uplink data is an Ethernet session, if it is an Ethernet session, go to S13, otherwise go to S18;
- S15 Query a locally preset MAC-IP address mapping table according to the address to be queried carried in the uplink data, and turn to S16;
- S17 Respond to the ARP/RARP request according to the found mapping information, process the message according to the SDAP protocol, and then deliver the message to the PDCP module, and then transfer to S19;
- S18 Process the message according to the SDAP protocol, and then send the message to the GTP module;
- the downlink transmission execution steps include:
- S21 receive downlink data from the GTP module, and transfer to S22;
- S24 Record the original MAC and source IP address mapping in the downlink data, update the locally preset MAC-IP address mapping table, and switch to S25;
- S25 Process the message according to the SDAP protocol, and then deliver the message to the PDCP module.
- the service data of the corresponding session is monitored inside the base station, and the internal address mapping table is constructed through self-learning.
- the terminal address request is found, it is the first to find and exist Under the circumstances, the response service is directly provided to enhance the business experience.
- a data transmission device which includes: a receiving module 10, an acquiring module 11, an inquiry module 12, and a sending module 13, wherein,
- the receiving module 10 is used to receive uplink data sent by the PDCP module;
- the obtaining module 11 is configured to obtain the first address to be queried in the ARP/RARP request data if the uplink data is ARP/RARP request data, and the first address to be queried includes the IP address to be queried or the MAC address to be queried;
- the query module 12 is configured to query the second address corresponding to the first address to be queried from the preset address mapping table;
- the address mapping table includes a plurality of mapping relationships between MAC addresses and IP addresses;
- the sending module 13 is configured to send the second address to the PDCP module if there is a second address in the address mapping table.
- the second address is a MAC address; if the first address to be queried is a MAC address, then the second address is an IP address.
- the above-mentioned sending module 13 is further configured to send the uplink data to the GTP module if the second address does not exist in the address mapping table.
- a data transmission device is provided, and the device further includes: a first judgment module 14 and a second judgment module 15, wherein:
- the first judging module 14 is used to judge whether the uplink data is an Ethernet session
- the second judgment module 15 is used for judging whether the uplink data is ARP/RARP request data if the uplink data is an Ethernet session; if the uplink data is ARP/RARP request data, then transfer to the above-mentioned obtaining module 11 to execute obtaining ARP/RARP The step of requesting the first address to be queried in the data; if it is not the ARP/RARP request data, transfer to the above-mentioned sending module 13 to send the uplink data to the GTP module.
- the first determining module 14 is specifically configured to determine that the uplink data is an Ethernet session if the bearer type of the uplink data is the bearer type corresponding to the Ethernet session.
- the second judgment module 15 is specifically configured to determine that the uplink data is the ARP/RARP request data if the data type identifier carried in the uplink data is the identifier corresponding to the ARP/RARP request data.
- a data transmission device is provided, and the device further includes: an update module 16.
- the above-mentioned obtaining module 11 is used to obtain the original MAC and the corresponding source IP address in the uplink data. ;
- the update module 16 is used to update the address mapping table according to the original MAC in the uplink data and the corresponding source IP address.
- the above-mentioned receiving module 10 is further configured to receive downlink data sent by the GTP module;
- the above-mentioned obtaining module 11 is also used to obtain the original MAC and the corresponding source IP address in the downlink data;
- the aforementioned update module 16 is also used to update the address mapping table according to the original MAC in the downlink data and the corresponding source IP address.
- the second judgment module 15 is also used to judge whether the downlink data is the response data of the ARP/RARP request; if so, it transfers to the acquisition module 11 to obtain the original MAC and the corresponding source IP address in the downlink data. If not, transfer to the above sending module and send the downlink data to the PDCP module.
- Each module in the above-mentioned data transmission device can be implemented in whole or in part by software, hardware, and a combination thereof.
- the above-mentioned modules may be embedded in the form of hardware or independent of the processor in the computer equipment, or may be stored in the memory of the computer equipment in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned modules.
- a computer device is provided.
- the computer device may be a terminal, and its internal structure diagram may be as shown in FIG. 12.
- the computer equipment includes a processor, a memory, a network interface, a display screen and an input device connected through a system bus.
- the processor of the computer device is used to provide calculation and control capabilities.
- the memory of the computer device includes a non-volatile storage medium and an internal memory.
- the non-volatile storage medium stores an operating system and a computer program.
- the internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium.
- the network interface of the computer device is used to communicate with an external terminal through a network connection.
- the computer program is executed by the processor to realize a data transmission method.
- the display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen
- the input device of the computer equipment can be a touch layer covered on the display screen, or it can be a button, a trackball or a touchpad set on the housing of the computer equipment , It can also be an external keyboard, touchpad, or mouse.
- FIG. 12 is only a block diagram of part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied.
- the specific computer device may Including more or fewer parts than shown in the figure, or combining some parts, or having a different arrangement of parts.
- a computer device including a memory and a processor, a computer program is stored in the memory, and the processor implements the following steps when the processor executes the computer program:
- the uplink data is ARP/RARP request data
- obtain the first address to be queried in the ARP/RARP request data includes the IP address to be queried or the MAC address to be queried;
- the address mapping table includes the mapping relationship between multiple MAC addresses and IP addresses
- the second address exists in the address mapping table, the second address is sent to the PDCP module.
- a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
- the uplink data is ARP/RARP request data
- obtain the first address to be queried in the ARP/RARP request data includes the IP address to be queried or the MAC address to be queried;
- the address mapping table includes the mapping relationship between multiple MAC addresses and IP addresses
- the second address exists in the address mapping table, the second address is sent to the PDCP module.
- Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory.
- Volatile memory may include random access memory (RAM) or external cache memory.
- RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Channel (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
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Claims (12)
- 一种数据传输方法,其特征在于,所述方法包括:接收PDCP模块发送的上行数据;若所述上行数据为ARP/RARP请求数据,获取所述ARP/RARP请求数据中的待查询第一地址,所述待查询第一地址包括待查询IP地址或待查询MAC地址;从预设的地址映射表中,查询所述待查询第一地址对应的第二地址;所述地址映射表中包括多个MAC地址与IP地址的映射关系;若所述地址映射表中存在所述第二地址,则将所述第二地址发送至所述PDCP模块。
- 根据权利要求1所述的方法,其特征在于,若所述待查询第一地址为IP地址,则所述第二地址为MAC地址;若所述待查询第一地址为MAC地址,则所述第二地址为IP地址。
- 根据权利要求1或2所述的方法,其特征在于,所述从预设的地址映射表中,查询所述待查询第一地址对应的第二地址之前,所述方法还包括:若所述地址映射表中不存在所述第二地址,将所述上行数据发送至GTP模块。
- 根据权利要求1或2所述的方法,其特征在于,在获取所述ARP/RARP请求数据中的待查询第一地址之前,所述方法包括:判断所述上行数据是否为以太网会话;若所述上行数据为以太网会话,判断所述上行数据是否为所述ARP/RARP请求数据;若所述上行数据是ARP/RARP请求数据,则执行获取所述ARP/RARP请求数据中的待查询第一地址的步骤;若不是所述ARP/RARP请求数据,则将所述上行数据发送至GTP模块。
- 根据权利要求4所述的方法,其特征在于,所述判断所述上行数据是否为以太网会话,包括:若所述上行数据的承载类型为以太网会话对应的承载类型,则确定所述上行数据为以太网会话。
- 根据权利要求4所述的方法,其特征在于,所述判断所述上行数据是否为所述ARP/RARP请求数据,包括:若所述上行数据中携带的数据类型标识为所 述ARP/RARP请求数据对应的标识,则确定所述上行数据为所述ARP/RARP请求数据。
- 根据权利要求1或2所述的方法,其特征在于,所述方法还包括:获取所述上行数据中的原MAC与对应的源IP地址;根据所述上行数据中的原MAC与对应的源IP地址,更新所述地址映射表。
- 根据权利要求7所述的方法,其特征在于,所述方法还包括:接收GTP模块发送的下行数据;获取所述下行数据中的原MAC与对应的源IP地址;根据所述下行数据中的原MAC与对应的源IP地址,更新所述地址映射表。
- 根据权利要求8所述的方法,其特征在于,所述获取所述下行数据中的原MAC与对应的源IP地址之前,所述方法包括:判断所述下行数据是否为ARP/RARP请求的响应数据;若是,获取所述下行数据中的原MAC与对应的源IP地址;若不是,将所述下行数据发送至所述PDCP模块。
- 一种数据传输装置,其特征在于,所述装置包括:接收模块,用于接收PDCP模块发送的上行数据;获取模块,用于若所述上行数据为ARP/RARP请求数据,获取所述ARP/RARP请求数据中的待查询第一地址,所述待查询第一地址包括待查询IP地址或待查询MAC地址;查询模块,用于从预设的地址映射表中,查询所述待查询第一地址对应的第二地址;所述地址映射表中包括多个MAC地址与IP地址的映射关系;发送模块,用于若所述地址映射表中存在所述第二地址,则将所述第二地址发送至所述PDCP模块。
- 一种计算机设备,包括存储器和处理器,所述存储器存储有计算机程序,其特征在于,所述处理器执行所述计算机程序时实现权利要求1至9中任一项所述方法的步骤。
- 一种计算机可读存储介质,其上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时实现权利要求1至9中任一项所述的方法的步骤。
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