TCAM (Ternary Content Addressable Memory) multi-mode character string matching method and device

The invention relates to a TCAM (Ternary Content Addressable Memory) multi-mode character string matching method and device. The method comprises the steps of: receiving a multi-mode character string and character string configuration information input by a user, and selecting a TCAM with qualified...

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Bibliographic Details
Main Authors LIANG LIHUA, WANG RUI, ZHAO YANBO, YE JUN, WANG ZENGLI, ZHOU ZHIXIONG
Format Patent
LanguageChinese
English
Published 23.11.2011
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention relates to a TCAM (Ternary Content Addressable Memory) multi-mode character string matching method and device. The method comprises the steps of: receiving a multi-mode character string and character string configuration information input by a user, and selecting a TCAM with qualified TCAM list item width, TCAM capacity and TCAM working frequency according to the multi-mode character string and the character string configuration information; storing the multi-mode character string in the TCAM according to the fact that the value of a position domain and a front mask domain are used for characterizing character string offset and a character ring domain contains mode character ring contents; receiving a to-be-matched character string input by the user, and dividing the to-be-matched character string into a plurality of character fields according to the byte number repeatedly sent each time the matching is performed and the TCAM list item width; sending the character fieldsand the corresponding mat
Bibliography:Application Number: CN2011192439