Data transmission method and device
A technology of data transmission and data grouping, applied in the field of data transmission, can solve problems such as low forwarding efficiency, and achieve the effect of improving transmission efficiency
Pending Publication Date: 2021-07-16
HUAWEI TECH CO LTD
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[0006] In order to solve the problem of low forwarding efficiency in related technologies, the embodiment of the present application provides a data transmission method and device
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[0296] The embodiment of the present application provides a data transmission method, which can be implemented by network devices in a hierarchical network. Such as figure 1 Shown is a schematic diagram of a hierarchical network. The hierarchical network includes multiple network areas and multiple subnets, such as subnet N1, subnet N2, subnet N3, and subnet N4. There may be multiple network devices, such as switching devices, in each network area, and these network devices may be used to forward data packets. There can also be multiple network devices in each subnet, and data transmission can be performed between these network devices. For example, the network device C1 in the subnet N1, as the source network device, can send data packets to the network device C2 in the subnet N4, and C2 is the destination network device. The data packet is sent by the source network device, and is forwarded to the destination network device through the network device used for forwarding. ...
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The embodiment of the invention discloses a data transmission method and device, and belongs to the technical field of communication. The method comprises the steps that a data packet is acquired, the data packet carries a variable-length source address, a variable-length destination address and indication information, the variable-length source address comprises a part of or all address fields in a source address, and the variable-length destination address comprises a part of or all address fields in a destination address; the indication information is used for indicating the network area level corresponding to the initial address field in the variable-length source address and the variable-length destination address. And a network level address of the second network equipment of the next hop corresponding to the data packet is determined based on the variable-length destination address and the indication information. And on the basis of the network level address and the indication information of the second network equipment, address field increase and decrease processing is carried out on the variable-length source address and the variable-length destination address in the data packet, and the indication information is updated. And the processed data packet is sent to the second network device. According to the invention, the data packet sending efficiency of the network equipment can be improved.
Description
technical field [0001] The present application relates to the technical field of communications, and in particular to a data transmission method and device. Background technique [0002] In a hierarchical network composed of multiple network areas, each network area has a corresponding network area address, and the network area address is used to globally uniquely identify the network area. For example, in a hierarchical network, the network area level corresponding to the highest-level network area A is 1, and its network area address can be 1, and the network area level corresponding to the next-level network area B is 2, and its network area address can be is 1.1, and so on. For each network area, its subordinate subnets can include network devices, each subnet has a corresponding subnet identification number, each network device has a corresponding device number, and the network level address of each network device is the network to which it belongs The network zone ad...
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IPC IPC(8): H04L12/741H04L45/74
CPCH04L45/74H04L45/745H04L45/54H04L12/28
Inventor 李广鹏蒋胜汤佶凡龚向阳张万里田野
Owner HUAWEI TECH CO LTD