Data conversion method and device

Abstract

This invention discloses a data transmission method including: a network transmission device receives a message and finds out item ID and its address information corresponding to the flow ID of said message and finds out the list according to the address information, when the ID found out according to the flow ID and that based on the address information are the same, it transmits the message based on the content in the item in terms of the address information. This invention discloses a data transmission device including: a host item set-up module, a residual item set-up module and a message transmission module.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a data forwarding method and device. Background technique [0002] Shortening the time spent looking up table entries is the key to improving the forwarding speed of network devices. At present, the method of establishing flow acceleration entries is usually used to shorten the time spent looking up table entries. The basic principle is: when a packet with a certain flow characteristic passes through the network forwarding device for the first time, it performs a normal table lookup operation on the packet, stores the forwarding information of the packet in the flow acceleration entry, and forwards the packet through the network. The device records the corresponding relationship between the flow characteristic information of the packet and the flow acceleration entry identifier (ID). When a packet with the same flow characteristic passes through the network forwarding ...

AI Technical Summary

Problems solved by technology

When the host entry changes, for example: the outbound port number in the outbound interface information changes, the corresponding information in the parasitic entry must be changed at the same time; at the same time, when the host entry is deleted, the corresponding parasitic entry must also be deleted , otherwise the wrong outbound interface information will be found, resulting in packet forwarding failure or packet forwarding error

[0010] At present, when the host entry is changed or deleted, the network forwarding device changes or deletes the parasitic entries one by one according to the recorded parasitic entry ID corresponding to the host entry. The problem caused by this is: because a host entry usually They all correspond to multiple parasitic entries, so it takes a while to change or delete parasitic entries, which is likely to cause: when the host entry has been changed or deleted, but the corresponding parasitic entry has not yet been changed or deleted, the network forwarding device A message that can be forwarded through a parasitic entry that will not be changed or deleted in the future is received, and as a result, the message forwarding fails or is incorrectly forwarded

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