Processing method and system based on flow table

Abstract

The invention provides a processing method and system based on a flow table. Flow table items containing matched fields and corresponding preset instruction sets are established, wherein the matched fields comprise data segments used for storing preset offset and preset length and masks, the matched fields and preset message data segments are correlated, and when messages are received, current message data segments corresponding to the preset length are acquired according to the position, corresponding to the preset offset, of the matched fields of the flow table items in the messages; the current message data segments are matched with the preset message data segments; when match succeeds, the correlated preset instruction sets are called to process the messages, a protocol independent match (PIM) mode is provided, in other words, the messages can be processed from the preset matched fields when the protocol type of new service is not known, and the problem that at present, new service can not be deployed easily because flow table items supported by matched service do not exist is avoided.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a flow table-based processing method and system. Background technique [0002] The strong protocol dependency of the current OpenFlow1.x flow table makes the data forwarding chip must perceive the protocol and format of each message and know all specific operations. This will not only lead to an increase in the complexity of the data forwarding chip, a decrease in performance, and an increase in cost, but more importantly, in order to support various new services and protocols, the OpenFlow1.x protocol and all data forwarding chips must continue to Upgrade, improve, and it's endless. [0003] For example, although OpenFlow1.3 supports more than forty Match fields, it still supports limited services. If you need to deploy new services, you still need to wait for a new version and need equipment upgrades to support it before you can deploy new services, which is very inconvenien...

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a flow table-based processing method and system to solve the problem of limited service support caused by the defect of the flow table matching method in the above-mentioned prior art

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