CAM table operating method and device

An operation method and lock operation technology, applied in the field of CAM table operation method and device, can solve the problem of reducing the data forwarding efficiency of a multi-core forwarding system, achieve the effect of improving forwarding efficiency and avoiding resource competition

Active Publication Date: 2017-05-24
NEUSOFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above problems, the present invention provides a method and device for operating a CAM table to solve the problem that existing multi-core competition reduces data forwarding efficiency in a multi-core forwarding system

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  • CAM table operating method and device

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Embodiment Construction

[0048] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0049] In order to solve the problem that multi-core competition reduces the data forwarding efficiency in the multi-core forwarding system, the embodiment of the present invention provides a method for operating the CAM table, such as figure 2 shown, including:

[0050] In this embodiment, a multi-core data forwarding system under a heterogeneous platform is taken as an example to describe the operation of the CAM table. Heterog...

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Abstract

The invention discloses a CAM table operating method and a CAM table operating device, which relate to the field of Internet technologies, and solve the problem that the existing multi-core competition reduces the efficiency of data forwarding in a multi-core forwarding system. The CAM table operating method comprises the steps that: a CAM table configuration kernel receives CAM table configuration messages sent by a kernel mode process and a user mode process, a CAM table is independent resources of the CAM table configuration kernel, the CAM table configuration messages are messages for updating the CAM table, and the CAM table configuration kernel operates in a user mode; and the CAM table is configured according to the CAM table configuration messages. The CAM table operating method and the CAM table operating device are applied to a data forwarding system of a multi-core heterogeneous platform.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a method and device for operating a CAM table. Background technique [0002] The address (CAM) table of the layer-2 switch is an address table composed of a physical address (Media Access Control, MAC) address, a Vlan, and a layer-2 device. The CAM table is a global table. In the data forwarding system, every time the data forwarder receives or sends a message, it needs to query and / or update the CAM table. The update of the CAM table includes adding CAM entries and deleting CAM tables. Entry, update CAM entry operations. [0003] The operation of the CAM table in the existing multi-core data forwarding system is as follows: figure 1 As shown in the figure, it can be seen from the figure that different forwarding cores in the user mode, configuration threads or soft interrupts in the kernel mode all need to query and / or update the CAM table in the process of packet forward...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/741H04L12/883H04L45/74H04L49/9015
CPCH04L41/0803H04L45/745H04L49/9015
Inventor 刘健男
Owner NEUSOFT CORP
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