Flow table conversion method and device

Abstract

The invention provides a flow table conversion method and device and relates to the technical field of networks. According to the flow table conversion method and device, in the achievement process from software to hardware, a controller does not need to fit in with an issuing rule of the hardware, and therefore burden of the controller and management expense are reduced. The flow table conversion method includes the following steps of converting a software-type multistage flow table into a software-type single-stage flow table in network equipment architecture with detached control and transmission in an equivalent mode, wherein the single-stage flow table is single-table multi-domain, and dividing the single-stage flow table into corresponding multi-stage flow tables of a hardware type based on the multi-stage flow table achieved by the hardware. The flow table conversion method and device is applied to flow table conversion.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a flow table conversion method and device. Background technique [0002] With the continuous development of new technologies for network equipment, network equipment has begun to shift to an architecture in which data forwarding and routing control are separated. Among them, OpenFlow is a typical network device architecture in which control and forwarding are separated, and has attracted widespread attention. Since the OpenFlow1.1 version, the concept of multi-level flow table pipeline level has been proposed. A complete matching flow is divided into different OpenFlow flow table entries according to the type of its matching field and associated with each other through metadata. The execution of the jump instruction obtained after each flow table lookup will trigger another flow table lookup until there is no jump instruction. However, in version 1.2 of OpenFlow, a Typ...

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Problems solved by technology

[0003] However, the complexity and flexibility of the multi-level flow table structure is difficult to achieve in hardware

In this way, the controller needs to adapt to the delivery rules of the hardware during the implementation process from software to hardware, which increases the burden on the controller and the management overhead of the controller.

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