Data transmission method and device
A data transmission method and network element technology, applied in the transmission system, data exchange through path configuration, electrical components, etc., can solve problems such as packet loss
Pending Publication Date: 2022-08-09
HUAWEI TECH CO LTD
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Problems solved by technology
[0004] This application provides a data transmission method and device, which solves the problem of data packet loss during data transmission
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[0048] The implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0049] figure 1 A schematic structural diagram of a communication network provided in an embodiment of the present application, the communication network includes at least one terminal (such as figure 1 Terminals 111 to 116) and server 130 shown in FIG. The terminal can access the server 130 through the network. The network may be an internet service provider (ISP) network. An ISP is an operator that provides Internet access services, information services and value-added services to a large number of users. The ISP network may include at least one network device (such as figure 1 network device 122 and network device 123 shown in ).
[0050] A terminal (terminal) may also be referred to as a terminal device, user equipment (user equipment, UE), a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT),...
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The invention discloses a data transmission method and device, and relates to the field of communication. The method comprises the steps that after a control plane network element obtains a first instruction, the step of sending a deletion instruction to a first user plane network element is skipped, a user table item is sent to a second user plane network element according to the first instruction, and the deletion instruction is used for instructing the first user plane network element to delete the user table item on the first user plane network element. Compared with the situation that a user table item stored in a first user plane network element is deleted when a control plane network element notifies a second user plane network element to process a data packet of a user, the method provided by the invention has the advantages that the terminal equipment accesses an interface corresponding to the first user plane network element, and the data packet sent to a server by the terminal is received by the first user plane network element; and after the control plane network element sends the user table entries to the second user plane network element, the user table entries in the first user plane network element are not deleted, and the first user plane network element can send the data packet to the server according to the user table entries, so that the flow loss of the user side is avoided.
Description
technical field [0001] The present application relates to the field of communications, and in particular, to a data transmission method and device. Background technique [0002] In a process that a user uses a terminal device to access a server through a network, a broadband network gateway (BNG) is used to complete functions such as user authentication, access control, and traffic scheduling. With the endless variety of Internet services, in order to improve the bandwidth of BNG and the ability to handle the number of user sessions, software defined network (SDN) technology and network function virtualization (NFV) technology can be used to divide BNG For the control plane network element and the user plane network element, the control plane network element is used to implement the control function of the BNG, and the user plane network element is used to implement the BNG encapsulation and data forwarding functions, thereby realizing the decoupling of the control function ...
Claims
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IPC IPC(8): H04L45/74H04L12/46
CPCH04L45/74H04L12/4633H04L12/4641H04L12/46H04W36/00
Inventor 彭涛余舟毅花荣荣王晓凯
Owner HUAWEI TECH CO LTD