Storage and forwarding method and device of message
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A message and storage unit technology, applied in the field of data communication, can solve the problem of low reliability of forwarding messages
Active Publication Date: 2014-01-22
MAIPU COMM TECH CO LTD
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[0005] Embodiments of the present invention provide a method and device for storing and forwarding messages, which are used to solve the problem of low reliability of forwarding messages
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Embodiment 1
[0051] like figure 1 As shown, an embodiment of the present invention provides a method for storing a message, and the execution body of the method is a forwarding device, and the details are as follows:
[0052] 101. After receiving the message to be stored, obtain header information and data information of the message.
[0053] 102. Use a predetermined check rule to perform operations on the header information of the message to generate header error control (Head Error Control, HEC) field information; scramble the data information of the message to generate scrambled data field information .
[0054] The predetermined verification rule in this step is specifically an error correction code (Error Correct Code, ECC) verification method or a Cyclic Redundancy Check (Cyclic Redundancy Check, CRC) verification method, and the like. For convenience of description, in this embodiment, a verification method in which the predetermined verification rule is ECC is used as an example ...
Embodiment 2
[0089] like Figure 5 As shown, an embodiment of the present invention provides a message storage device 50 . The device 50 includes: a writing operation module 501 and a verification processing module 502 . Specifically, the apparatus 50 may be a forwarding device (such as a router or a switch, etc.).
[0090] The writing operation module 501 is used to obtain the header information and data information of the message after receiving the message to be stored;
[0091] The verification processing module 502 is configured to process the header information of the message by using a predetermined verification rule, generate header error control HEC field information, scramble the data information of the message, and obtain the data field information;
[0092] The write operation module 501 is also used to sequentially write the header information of the message, the generated HEC field information and the scrambled data field information into the buffer device with the storage u...
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Abstract
The invention discloses a storage and forwarding method and a device of a message, and relates to the technical field of data communication. The method and the device are used for solving the problem of lower reliability of forwarding the message. The method particularly comprises the steps of acquiring header information and data information of the message after receiving the message to be stored, operating the header information of the message by using a preset check rule, generating HEC (header error check) field information, scrambling the data information of the message, generating scrambled data field information, sequentially writing the header information of the message, the generated HEC field information and the scrambled data field information into a cache device taking a storage cell currently directed by a writing pointer as a start address, and updating the writing pointer to point to a next adjacent free storage cell of the cache device. The method and the device are suitable for storage and forwarding of the message.
Description
technical field [0001] The present invention relates to the technical field of data communication, and in particular, to a method and device for storing and forwarding messages. Background technique [0002] In the field of data communication technology, forwarding devices (such as routers, switches, etc.) can forward all received packets in a store-and-forward manner, that is, the forwarding device stores all packets received from a port first, and then out through other ports. [0003] In the prior art, when a store-and-forward method is used to store and forward a message, the forwarding device stores the message length, start address and other information of each received message in a buffer descriptor (BD) table. The actual message content is placed in another cache device according to the start address in the BD entry, wherein one BD entry corresponds to one message. The BD item is a storage structure that describes information such as the length of the message, the ...
Claims
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Application Information
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