DE60216938T2 - Gleichzeitiges durchsuchen verschiedener tabellen in einem inhaltsadressierbaren speicher - Google Patents
Gleichzeitiges durchsuchen verschiedener tabellen in einem inhaltsadressierbaren speicher Download PDFInfo
- Publication number
- DE60216938T2 DE60216938T2 DE60216938T DE60216938T DE60216938T2 DE 60216938 T2 DE60216938 T2 DE 60216938T2 DE 60216938 T DE60216938 T DE 60216938T DE 60216938 T DE60216938 T DE 60216938T DE 60216938 T2 DE60216938 T2 DE 60216938T2
- Authority
- DE
- Germany
- Prior art keywords
- string
- filtered
- bit
- common input
- input string
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C15/00—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/903—Querying
- G06F16/90335—Query processing
- G06F16/90339—Query processing by using parallel associative memories or content-addressable memories
Landscapes
- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Computational Linguistics (AREA)
- Data Mining & Analysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/935,997 US6744652B2 (en) | 2001-08-22 | 2001-08-22 | Concurrent searching of different tables within a content addressable memory |
| US935997 | 2001-08-22 | ||
| PCT/US2002/026636 WO2003019571A1 (en) | 2001-08-22 | 2002-08-21 | Concurrent searching of different tables within a content addressable memory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE60216938D1 DE60216938D1 (de) | 2007-02-01 |
| DE60216938T2 true DE60216938T2 (de) | 2007-10-04 |
Family
ID=25468029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60216938T Expired - Lifetime DE60216938T2 (de) | 2001-08-22 | 2002-08-21 | Gleichzeitiges durchsuchen verschiedener tabellen in einem inhaltsadressierbaren speicher |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6744652B2 (enExample) |
| EP (1) | EP1425755B1 (enExample) |
| JP (1) | JP4076497B2 (enExample) |
| DE (1) | DE60216938T2 (enExample) |
| WO (1) | WO2003019571A1 (enExample) |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6744652B2 (en) * | 2001-08-22 | 2004-06-01 | Netlogic Microsystems, Inc. | Concurrent searching of different tables within a content addressable memory |
| JP3979486B2 (ja) * | 2001-09-12 | 2007-09-19 | 株式会社ルネサステクノロジ | 不揮発性記憶装置およびデータ格納方法 |
| US7065083B1 (en) * | 2001-10-04 | 2006-06-20 | Cisco Technology, Inc. | Method and apparatus for dynamically generating lookup words for content-addressable memories |
| US6993622B2 (en) * | 2001-10-31 | 2006-01-31 | Netlogic Microsystems, Inc. | Bit level programming interface in a content addressable memory |
| US7210003B2 (en) * | 2001-10-31 | 2007-04-24 | Netlogic Microsystems, Inc. | Comparand generation in a content addressable memory |
| KR100977161B1 (ko) * | 2001-11-01 | 2010-08-20 | 베리사인 인코포레이티드 | 원격 데이터베이스를 유효화시키기 위한 방법 및 시스템 |
| US7813346B1 (en) * | 2001-11-21 | 2010-10-12 | Juniper Networks, Inc. | Filter-based forwarding in a network |
| US7117300B1 (en) | 2001-12-27 | 2006-10-03 | James David V | Method and apparatus for restricted search operation in content addressable memory (CAM) devices |
| US7301961B1 (en) | 2001-12-27 | 2007-11-27 | Cypress Semiconductor Corportion | Method and apparatus for configuring signal lines according to idle codes |
| US7401180B1 (en) * | 2001-12-27 | 2008-07-15 | Netlogic Microsystems, Inc. | Content addressable memory (CAM) device having selectable access and method therefor |
| US7237058B2 (en) | 2002-01-14 | 2007-06-26 | Netlogic Microsystems, Inc. | Input data selection for content addressable memory |
| US7219187B1 (en) * | 2002-08-30 | 2007-05-15 | Netlogic Microsystems, Inc. | Search parameter table in a content addressable memory |
| US7680769B2 (en) * | 2003-01-14 | 2010-03-16 | International Business Machines Corporation | Method of creating a database and search keys and for searching the database |
| US20060018142A1 (en) * | 2003-08-11 | 2006-01-26 | Varadarajan Srinivasan | Concurrent searching of different tables within a content addressable memory |
| US7698118B2 (en) * | 2004-04-15 | 2010-04-13 | Mentor Graphics Corporation | Logic design modeling and interconnection |
| GB0408870D0 (en) * | 2004-04-21 | 2004-05-26 | Level 5 Networks Ltd | Processsing packet headers |
| GB0408868D0 (en) | 2004-04-21 | 2004-05-26 | Level 5 Networks Ltd | Checking data integrity |
| US7739445B1 (en) * | 2004-06-11 | 2010-06-15 | Srinivasan Venkatachary | Circuit, apparatus, and method for extracting multiple matching entries from a content addressable memory (CAM) device |
| EP1861778B1 (en) | 2005-03-10 | 2017-06-21 | Solarflare Communications Inc | Data processing system |
| GB0506403D0 (en) | 2005-03-30 | 2005-05-04 | Level 5 Networks Ltd | Routing tables |
| GB0505300D0 (en) | 2005-03-15 | 2005-04-20 | Level 5 Networks Ltd | Transmitting data |
| US8230167B1 (en) | 2005-06-29 | 2012-07-24 | Netlogic Microsystems, Inc. | Block mapping circuit and method for memory device |
| US7853578B1 (en) * | 2005-12-09 | 2010-12-14 | Marvell International Ltd. | High-performance pattern matching |
| GB0600417D0 (en) | 2006-01-10 | 2006-02-15 | Level 5 Networks Inc | Virtualisation support |
| US8006114B2 (en) * | 2007-03-09 | 2011-08-23 | Analog Devices, Inc. | Software programmable timing architecture |
| US8085568B1 (en) | 2007-06-29 | 2011-12-27 | Netlogic Microsystems, Inc. | Methods and circuits for placing unused content addressable memory (CAM) cells into low current states |
| US7782645B1 (en) | 2008-02-04 | 2010-08-24 | Netlogic Microsystems, Inc. | Selective encoding of data values for memory cell blocks |
| US7814267B1 (en) | 2008-02-04 | 2010-10-12 | Netlogic Microsystems, Inc. | Processor with compare operations based on any of multiple compare data segments |
| US8214305B1 (en) | 2008-11-24 | 2012-07-03 | Netlogic Microsystems, Inc. | Pattern matching system and method for data streams, including deep packet inspection |
| US7907432B2 (en) * | 2009-06-30 | 2011-03-15 | Netlogic Microsystems, Inc. | Content addressable memory device for simultaneously searching multiple flows |
| US9305115B1 (en) | 2010-10-04 | 2016-04-05 | Broadcom Corporation | Method and apparatus for reducing power consumption during rule searches in a content search system |
| CN102122270B (zh) * | 2011-02-23 | 2013-08-07 | 华为技术有限公司 | 在存储器中查找数据的方法和装置以及存储器 |
| US8467213B1 (en) | 2011-03-22 | 2013-06-18 | Netlogic Microsystems, Inc. | Power limiting in a content search system |
| US8861241B1 (en) | 2011-09-01 | 2014-10-14 | Netlogic Microsystems, Inc. | Content search system having embedded power control units |
| US8639875B1 (en) | 2011-09-06 | 2014-01-28 | Netlogic Microsystems, Inc. | Content search system having multiple pipelines |
| US9043448B1 (en) * | 2012-05-08 | 2015-05-26 | Gigamon Inc. | Systems and methods for configuring a network component that involves TCAM |
| JP6170718B2 (ja) * | 2012-11-21 | 2017-07-26 | ルネサスエレクトロニクス株式会社 | 検索システム |
| ES2549188B1 (es) * | 2014-04-23 | 2016-05-19 | Univ Del Pais Vasco - Euskal Herriko Unibertsitatea (Upv/Ehu) | Sistema y método de lectura y escritura de una memoria digital |
| US12432211B2 (en) * | 2022-06-09 | 2025-09-30 | Marvell Israel (M.I.S.L) Ltd. | Interleaved exact-match lookup table for multiple packet processing applications in a network device |
Family Cites Families (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3648254A (en) | 1969-12-31 | 1972-03-07 | Ibm | High-speed associative memory |
| US5046046A (en) * | 1978-03-10 | 1991-09-03 | Intel Corporation | Redundancy CAM using word line from memory |
| DE3801380A1 (de) | 1987-01-20 | 1988-07-28 | Nec Corp | Zeichenfolge-erkennungsvorrichtung mit einem speicher, dessen speicherbereiche selektiv zugreifbar sind |
| US4845668A (en) | 1987-12-10 | 1989-07-04 | Raytheon Company | Variable field content addressable memory |
| US4996666A (en) | 1988-08-12 | 1991-02-26 | Duluk Jr Jerome F | Content-addressable memory system capable of fully parallel magnitude comparisons |
| US5088066A (en) * | 1989-02-10 | 1992-02-11 | Intel Corporation | Redundancy decoding circuit using n-channel transistors |
| US5319762A (en) | 1990-09-07 | 1994-06-07 | The Mitre Corporation | Associative memory capable of matching a variable indicator in one string of characters with a portion of another string |
| JP2966638B2 (ja) * | 1992-04-17 | 1999-10-25 | 三菱電機株式会社 | ダイナミック型連想メモリ装置 |
| EP0594196B1 (en) | 1992-10-22 | 1999-03-31 | Cabletron Systems, Inc. | Address lookup in packet data communications link, using hashing and content-addressable memory |
| US5444649A (en) | 1993-06-10 | 1995-08-22 | Apple Computer, Inc. | Associative memory system having configurable means for comparing fields in an array of stored data words with corresponding one or more fields in a supplied argument word |
| US5860085A (en) | 1994-08-01 | 1999-01-12 | Cypress Semiconductor Corporation | Instruction set for a content addressable memory array with read/write circuits and an interface register logic block |
| WO1996033499A1 (de) | 1995-04-18 | 1996-10-24 | International Business Machines Corporation | Inhalts-adressierbarer speicher |
| US5642322A (en) | 1995-05-24 | 1997-06-24 | Kawasaki Steel Corporation | Layout of semiconductor memory and content-addressable memory |
| US6041389A (en) | 1995-11-16 | 2000-03-21 | E Cirrus Logic, Inc. | Memory architecture using content addressable memory, and systems and methods using the same |
| US5978885A (en) | 1996-06-17 | 1999-11-02 | Hewlett Packard Co. | Method and apparatus for self-timing associative data memory |
| US6069573A (en) | 1996-06-17 | 2000-05-30 | Hewlett-Packard Company | Match and match address signal prioritization in a content addressable memory encoder |
| US5956336A (en) | 1996-09-27 | 1999-09-21 | Motorola, Inc. | Apparatus and method for concurrent search content addressable memory circuit |
| JP3036467B2 (ja) | 1997-06-19 | 2000-04-24 | 日本電気株式会社 | 最長一致検出装置 |
| US6226710B1 (en) | 1997-11-14 | 2001-05-01 | Utmc Microelectronic Systems Inc. | Content addressable memory (CAM) engine |
| US6161144A (en) | 1998-01-23 | 2000-12-12 | Alcatel Internetworking (Pe), Inc. | Network switching device with concurrent key lookups |
| JP3196720B2 (ja) | 1998-03-20 | 2001-08-06 | 日本電気株式会社 | 連想メモリ制御回路及び制御方法 |
| US6424659B2 (en) * | 1998-07-17 | 2002-07-23 | Network Equipment Technologies, Inc. | Multi-layer switching apparatus and method |
| US6289414B1 (en) * | 1998-10-08 | 2001-09-11 | Music Semiconductors, Inc. | Partially ordered cams used in ternary hierarchical address searching/sorting |
| US6081440A (en) | 1998-11-05 | 2000-06-27 | Lara Technology, Inc. | Ternary content addressable memory (CAM) having fast insertion and deletion of data values |
| US6275406B1 (en) * | 1999-09-10 | 2001-08-14 | Sibercore Technologies, Inc. | Content address memory circuit with redundant array and method for implementing the same |
| US6324087B1 (en) * | 2000-06-08 | 2001-11-27 | Netlogic Microsystems, Inc. | Method and apparatus for partitioning a content addressable memory device |
| US6249467B1 (en) * | 1999-10-18 | 2001-06-19 | Netlogic Microsystems, Inc | Row redundancy in a content addressable memory |
| US6374326B1 (en) | 1999-10-25 | 2002-04-16 | Cisco Technology, Inc. | Multiple bank CAM architecture and method for performing concurrent lookup operations |
| US6633953B2 (en) * | 2000-02-08 | 2003-10-14 | Hywire Ltd. | Range content-addressable memory |
| US6243281B1 (en) * | 2000-06-14 | 2001-06-05 | Netlogic Microsystems, Inc. | Method and apparatus for accessing a segment of CAM cells in an intra-row configurable CAM system |
| CA2313275C (en) * | 2000-06-30 | 2006-10-17 | Mosaid Technologies Incorporated | Searchline control circuit and power reduction method |
| US6629099B2 (en) * | 2000-12-07 | 2003-09-30 | Integrated Silicon Solution, Inc. | Paralleled content addressable memory search engine |
| US20020126672A1 (en) * | 2001-01-10 | 2002-09-12 | Nelson Chow | Method and apparatus for a flexible and reconfigurable packet classifier using content addressable memory |
| US6691252B2 (en) * | 2001-02-23 | 2004-02-10 | Hewlett-Packard Development Company, L.P. | Cache test sequence for single-ported row repair CAM |
| US6373758B1 (en) * | 2001-02-23 | 2002-04-16 | Hewlett-Packard Company | System and method of operating a programmable column fail counter for redundancy allocation |
| US6525987B2 (en) * | 2001-05-23 | 2003-02-25 | Tachyon Semiconductor Corporation | Dynamically configured storage array utilizing a split-decoder |
| US6744652B2 (en) * | 2001-08-22 | 2004-06-01 | Netlogic Microsystems, Inc. | Concurrent searching of different tables within a content addressable memory |
| US6993622B2 (en) * | 2001-10-31 | 2006-01-31 | Netlogic Microsystems, Inc. | Bit level programming interface in a content addressable memory |
| US7210003B2 (en) * | 2001-10-31 | 2007-04-24 | Netlogic Microsystems, Inc. | Comparand generation in a content addressable memory |
| US7237058B2 (en) * | 2002-01-14 | 2007-06-26 | Netlogic Microsystems, Inc. | Input data selection for content addressable memory |
-
2001
- 2001-08-22 US US09/935,997 patent/US6744652B2/en not_active Expired - Lifetime
-
2002
- 2002-08-21 WO PCT/US2002/026636 patent/WO2003019571A1/en not_active Ceased
- 2002-08-21 DE DE60216938T patent/DE60216938T2/de not_active Expired - Lifetime
- 2002-08-21 JP JP2003522942A patent/JP4076497B2/ja not_active Expired - Fee Related
- 2002-08-21 EP EP02752859A patent/EP1425755B1/en not_active Expired - Lifetime
-
2003
- 2003-08-11 US US10/639,153 patent/US6967855B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US6967855B2 (en) | 2005-11-22 |
| EP1425755A4 (en) | 2005-11-09 |
| DE60216938D1 (de) | 2007-02-01 |
| WO2003019571A1 (en) | 2003-03-06 |
| EP1425755A1 (en) | 2004-06-09 |
| EP1425755B1 (en) | 2006-12-20 |
| US20040032775A1 (en) | 2004-02-19 |
| US20030039135A1 (en) | 2003-02-27 |
| JP4076497B2 (ja) | 2008-04-16 |
| US6744652B2 (en) | 2004-06-01 |
| JP2005501448A (ja) | 2005-01-13 |
| WO2003019571A9 (en) | 2003-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| R082 | Change of representative |
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