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CAM space processing method and system

A space processing and space processing technology, applied in the field of CAM service identification, can solve the problems of adding CAM devices, limitation, inflexibility, etc.

Inactive Publication Date: 2017-07-11
北京浩瀚深度信息技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of the prior art is inflexibility: when adding a service identification algorithm, the number of CAM devices needs to be increased; or the number of entries of each service identification algorithm is limited by the allocated ratio, and cannot occupy other algorithms that are allocated but not used Space
[0004] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

Method used

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  • CAM space processing method and system
  • CAM space processing method and system

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] The present invention aims to provide a method and system, which can make better use of CAM space during service identification by encoding the service identification algorithm.

[0044] see figure 1 , the present invention provides a CAM space management system, the system is based on CAM, the structure of the combination of software and hardware. The system 100 includes an algorithm encoding module 10, a message extraction module 20, an item creation module 30 and a space configuration module 40, wherein:

[0045] The algorithm encoding module 10 is used to classify and encode service id...

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Abstract

The invention belongs to the technical field of CAM service identification and provides a CAM spatial processing method. The method comprises the steps of processing the sorting code numbers of the service identification algorithm; upon receiving a service identification request, extracting the detection content of an IP message; creating the content of CAM items according to the encoding data of the algorithm and the detection content of the IP message; according to the content of CAM items, configuring the CAM processing space. The invention also correspondingly provides a CAM spatial processing method for realizing the above method. In this way, the multilevel coding based on a plurality of identification algorithms can be realized. Based on the content of the redundant data of CAM items, the unified and flexible management of the CAM address space is realized.

Description

technical field [0001] The invention relates to the technical field of CAM service identification, in particular to a CAM space processing method and system. Background technique [0002] CAM (Content Addressable Memory) is a dedicated memory device that can perform fast and massive parallel searches. When searching, all data in the memory is compared with the search keyword at the same time, and the search result is the physical address of the matching item. In computer network equipment, CAM can not only be used to complete routing table queries such as IP addresses in hardware, but also can be combined with FPGA or NP to query IP message content to support network service identification algorithms. When designing hardware boards of network equipment, the capacity and quantity of CAM are the main factors affecting performance and cost. The recognition algorithm sorts out and flexibly allocates the way it occupies the CAM space. [0003] The existing service identificatio...

Claims

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Application Information

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IPC IPC(8): H04L12/24G06F12/02
CPCH04L41/0823G06F12/023
Inventor 谢芸陈陆颖于华
Owner 北京浩瀚深度信息技术股份有限公司