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Method and device for software-defined frame header mapping between multiple protocols
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A software-defined, multi-protocol technology, applied in the field of data communication, can solve the problems of outdated, unable to meet the needs of applications, heterogeneous protocol networking scenarios and complex networking modes, etc., to achieve the effect of strong flexibility
Active Publication Date: 2021-01-15
天津市滨海新区信息技术创新中心 +1
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[0003] However, in the actual application of heterogeneous protocols, the networking scenarios and networking modes of heterogeneous protocols are very complicated, and this peer-to-peer mapping method will become inappropriate. FC ID is mapped, and in a centralized industrial control network, the port number and FC ID need to be mapped. Obviously, at this time, this traditional heterogeneous protocol mapping processing method can no longer meet the application requirements.
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Embodiment 1
[0063] This embodiment provides a software-defined frame header mapping method between multiple protocols, such as figure 1 As shown, the method includes the following steps:
[0064] Step S101, splitting the data frame of the original protocol into a frame header field and a data field.
[0065] Among them, the frame header field may contain five-tuple information and content such as source mac address, destination mac address, VLAN layer number, VLANID, source IP address, destination IP address, source port number, destination port number, and protocol type; the data field can be Enter the data field storage for storage.
[0066] Step S102, formulate a conversion rule according to the target protocol, and convert the frame header field into a keyword.
[0067] Specifically, according to the bit width of the keyword, set the number and width of the first field mapping selector; each field mapping selector keyword different bit segments; determine the bit segment of the fram...
Embodiment 2
[0084] Corresponding to the above method embodiments, this embodiment provides a software-defined frame header mapping device between multiple protocols, such as Figure 5 As shown, the device includes:
[0085] The splitting module 51 is configured to split the data frame of the original protocol into a frame header field and a data field.
[0086] Specifically, the split data fields are input into the data field memory for storage.
[0087] The mapping module 52 is configured to formulate conversion rules according to the target protocol, and convert frame header fields into keywords.
[0088] Specifically, according to the bit width of the keyword, set the number and width of the first field mapping selector; each field mapping selector corresponds to a different bit segment of the keyword; determine all the fields to be converted according to the target protocol The bit segment of the frame header field; according to the conversion rule, the bit segment to be converted i...
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Abstract
The invention provides a method and an apparatus for software defined frame header mapping between multiple protocols, and belongs to the technical field of data communication. The frame header mapping method and the device provided by the embodiment of the invention divide the data frame of the original protocol into a frame header field and a data field. According to the target protocol, the frame header field is converted to the keyword. According to the correspondence between the stored keywords and the keyword values, the corresponding keyword values are found. According to the target protocol, the key value is converted to the frame header field of the target protocol. Combining the frame header field and the data field of the target protocol into the data frame of the target protocol, according to the difference of the target protocol, redefining the conversion rule and the table item content, realizing the conversion of supporting multiple protocols, making the protocol conversion no longer bound with the specific protocol, and having very strong flexibility.
Description
technical field [0001] The present invention relates to the technical field of data communication, in particular to a software-defined frame header mapping method and device among multiple protocols. Background technique [0002] With the rapid development of the Internet of Things and big data, the scale of the network is getting larger and larger, and the demand for mutual communication between different devices, networks, and protocols is also getting higher and higher. In some large-scale network systems, each device adopts Different network protocols and communication interfaces are different, but although different network protocols can be viewed according to the OSI layered structure, the frame formats and access methods of each layer are different. Therefore, if network integration is to be realized, it is necessary to Solve the core protocol conversion problem. Using protocol mapping to implement protocol conversion can solve the problem of communication between he...
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