ATE549829T1 - Verfahren und vorrichtung zum finden des längsten präfixes auf grundlage einer baumstruktur - Google Patents
Verfahren und vorrichtung zum finden des längsten präfixes auf grundlage einer baumstrukturInfo
- Publication number
- ATE549829T1 ATE549829T1 AT09159417T AT09159417T ATE549829T1 AT E549829 T1 ATE549829 T1 AT E549829T1 AT 09159417 T AT09159417 T AT 09159417T AT 09159417 T AT09159417 T AT 09159417T AT E549829 T1 ATE549829 T1 AT E549829T1
- Authority
- AT
- Austria
- Prior art keywords
- tnode
- node
- pointer
- upper level
- best match
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
- H04L45/74591—Address table lookup; Address filtering using content-addressable memories [CAM]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100969062A CN101577662B (zh) | 2008-05-05 | 2008-05-05 | 一种基于树形数据结构的最长前缀匹配方法和装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE549829T1 true ATE549829T1 (de) | 2012-03-15 |
Family
ID=40652132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT09159417T ATE549829T1 (de) | 2008-05-05 | 2009-05-05 | Verfahren und vorrichtung zum finden des längsten präfixes auf grundlage einer baumstruktur |
Country Status (5)
Country | Link |
---|---|
US (1) | US7539153B1 (de) |
EP (1) | EP2117184B1 (de) |
CN (1) | CN101577662B (de) |
AT (1) | ATE549829T1 (de) |
WO (1) | WO2009135417A1 (de) |
Families Citing this family (39)
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EP2241983B1 (de) * | 2009-04-17 | 2012-12-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Suche von Elementen in einer Datenbank |
US8625604B2 (en) * | 2009-12-01 | 2014-01-07 | Polytechnic Institute Of New York University | Hash-based prefix-compressed trie for IP route lookup |
WO2011110003A1 (zh) | 2010-08-24 | 2011-09-15 | 华为技术有限公司 | 二叉树建立、压缩和查找的方法和装置 |
US8527546B2 (en) | 2010-11-25 | 2013-09-03 | International Business Machines Corporation | Generating a checkpoint image for use with an in-memory database |
CN102045412B (zh) * | 2010-12-28 | 2013-01-16 | 赛尔网络有限公司 | IPv6地址前缀压缩存储方法及设备 |
US9155320B2 (en) * | 2011-07-06 | 2015-10-13 | International Business Machines Corporation | Prefix-based leaf node storage for database system |
US9158758B2 (en) * | 2012-01-09 | 2015-10-13 | Microsoft Technology Licensing, Llc | Retrieval of prefix completions by way of walking nodes of a trie data structure |
US9680747B2 (en) | 2012-06-27 | 2017-06-13 | Futurewei Technologies, Inc. | Internet protocol and Ethernet lookup via a unified hashed trie |
US8732207B2 (en) | 2012-07-02 | 2014-05-20 | International Business Machines Corporation | Attribute-based linked tries for rule evaluation |
US8902902B2 (en) * | 2012-07-18 | 2014-12-02 | Netronome Systems, Incorporated | Recursive lookup with a hardware trie structure that has no sequential logic elements |
CN102831224B (zh) * | 2012-08-24 | 2018-09-04 | 北京百度网讯科技有限公司 | 一种数据索引库的建立方法、搜索建议生成方法和装置 |
CN102868779B (zh) * | 2012-09-20 | 2016-01-20 | 北京锐安科技有限公司 | 一种IPv6数据分区及快速查找方法 |
CN103778124A (zh) * | 2012-10-17 | 2014-05-07 | 北大方正集团有限公司 | 一种树形结构查询方法及装置 |
CN103780491B (zh) * | 2012-10-23 | 2018-01-23 | 上海博达数据通信有限公司 | 一种实现IPv6快速路由查找的方法 |
CN103051543B (zh) * | 2012-11-01 | 2015-09-09 | 广州键智桥网络技术有限公司 | 一种路由前缀的处理、查找、增加及删除方法 |
US9172743B2 (en) * | 2012-12-31 | 2015-10-27 | Futurewei Technologies, Inc. | Scalable storage systems with longest prefix matching switches |
US9602407B2 (en) * | 2013-12-17 | 2017-03-21 | Huawei Technologies Co., Ltd. | Trie stage balancing for network address lookup |
CN104780100B (zh) * | 2014-01-09 | 2019-06-04 | 中兴通讯股份有限公司 | 一种路由查找方法和路由器 |
CN104932982B (zh) * | 2014-03-21 | 2019-02-12 | 华为技术有限公司 | 一种消息访存的编译方法及相关装置 |
CN104679854B (zh) * | 2015-02-15 | 2018-01-26 | 中国科学院计算技术研究所 | 路由表存储与查找方法 |
JP5960863B1 (ja) * | 2015-03-11 | 2016-08-02 | エヌ・ティ・ティ・コミュニケーションズ株式会社 | 検索装置、検索方法、プログラム、及び記録媒体 |
CN106126722B (zh) * | 2016-06-30 | 2019-10-18 | 中国科学院计算技术研究所 | 一种基于验证的前缀混合树及设计方法 |
CN107590258B (zh) * | 2017-09-20 | 2020-04-28 | 杭州安恒信息技术股份有限公司 | 关键字匹配方法及装置 |
WO2019098871A1 (en) * | 2017-11-20 | 2019-05-23 | Huawei Technologies Co., Ltd. | Data storage system and method of providing a data storage system |
CN110245330B (zh) * | 2018-03-09 | 2023-07-07 | 腾讯科技(深圳)有限公司 | 字符序列匹配方法、实现匹配的预处理方法和装置 |
CN110309368B (zh) * | 2018-03-26 | 2023-09-22 | 腾讯科技(深圳)有限公司 | 数据地址的确定方法、装置、存储介质和电子装置 |
CN108647338B (zh) * | 2018-05-14 | 2022-07-29 | 五八有限公司 | bitmap计算方法、装置、设备及存储介质 |
WO2019241926A1 (zh) * | 2018-06-20 | 2019-12-26 | 华为技术有限公司 | 访问控制列表的管理方法及装置 |
US11178054B1 (en) * | 2018-08-22 | 2021-11-16 | Marvell Israel (M.I.S.L) Ltd. | Method and apparatus for longest prefix match search |
CN112955961B (zh) * | 2018-08-28 | 2024-06-11 | 皇家飞利浦有限公司 | 医学文本中对基因名称的标准化的方法和系统 |
CN111382323B (zh) * | 2018-12-29 | 2023-08-11 | 贵州白山云科技股份有限公司 | 一种数据检索优化方法、装置和计算机设备 |
CN109902088A (zh) * | 2019-02-13 | 2019-06-18 | 北京航空航天大学 | 一种面向流式时序数据的数据索引方法 |
CN110442570B (zh) * | 2019-06-06 | 2021-08-17 | 北京左江科技股份有限公司 | 一种BitMap高速模糊查找方法 |
CN111131015B (zh) * | 2019-12-27 | 2021-09-03 | 芯启源(南京)半导体科技有限公司 | 一种基于PC-Trie动态更新路由的方法 |
CN112637053B (zh) * | 2020-12-30 | 2022-05-20 | 锐捷网络股份有限公司 | 路由的备份转发路径的确定方法及装置 |
CN112887212B (zh) * | 2021-02-25 | 2022-03-29 | 清华大学 | 基于可变步宽trie树的高速路由查找方法和装置 |
CN115190071A (zh) * | 2021-04-02 | 2022-10-14 | 华为技术有限公司 | 一种缓存方法及集成电路 |
CN115086221B (zh) * | 2022-07-27 | 2022-11-22 | 新华三半导体技术有限公司 | 一种报文处理方法、装置、转发设备和存储介质 |
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US5787430A (en) | 1994-06-30 | 1998-07-28 | International Business Machines Corporation | Variable length data sequence backtracking a trie structure |
US6011795A (en) | 1997-03-20 | 2000-01-04 | Washington University | Method and apparatus for fast hierarchical address lookup using controlled expansion of prefixes |
US6041053A (en) * | 1997-09-18 | 2000-03-21 | Microsfot Corporation | Technique for efficiently classifying packets using a trie-indexed hierarchy forest that accommodates wildcards |
US6396842B1 (en) * | 1998-04-30 | 2002-05-28 | 3Com Corporation | Method of searching using longest match based Randix Search Trie with variable length keys and having prefix capability |
JP3570323B2 (ja) | 1999-05-11 | 2004-09-29 | 日本電気株式会社 | アドレスに関するプレフィクスの格納方法 |
US7249149B1 (en) * | 1999-08-10 | 2007-07-24 | Washington University | Tree bitmap data structures and their use in performing lookup operations |
US6697363B1 (en) | 2000-06-28 | 2004-02-24 | Alcatel Canada Inc. | Method and apparatus for longest matching prefix determination in a communication network |
US20070192863A1 (en) | 2005-07-01 | 2007-08-16 | Harsh Kapoor | Systems and methods for processing data flows |
US7274697B2 (en) | 2000-11-16 | 2007-09-25 | Tensilica, Inc. | Fast IP route lookup with 16/K and 16/Kc compressed data structures |
US6888838B1 (en) | 2000-11-16 | 2005-05-03 | Tensilica, Inc. | Fast IP route lookup with configurable processor and compressed routing table |
US6785687B2 (en) | 2001-06-04 | 2004-08-31 | Hewlett-Packard Development Company, L.P. | System for and method of efficient, expandable storage and retrieval of small datasets |
US6816856B2 (en) | 2001-06-04 | 2004-11-09 | Hewlett-Packard Development Company, L.P. | System for and method of data compression in a valueless digital tree representing a bitset |
US7103008B2 (en) | 2001-07-02 | 2006-09-05 | Conexant, Inc. | Communications system using rings architecture |
US7212531B1 (en) * | 2001-11-27 | 2007-05-01 | Marvell Semiconductor Israel Ltd. | Apparatus and method for efficient longest prefix match lookup |
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US20030174717A1 (en) | 2002-03-15 | 2003-09-18 | Boris Zabarski | System and method for longest prefix match for internet protocol lookup |
US7899067B2 (en) | 2002-05-31 | 2011-03-01 | Cisco Technology, Inc. | Method and apparatus for generating and using enhanced tree bitmap data structures in determining a longest prefix match |
US7415472B2 (en) | 2003-05-13 | 2008-08-19 | Cisco Technology, Inc. | Comparison tree data structures of particular use in performing lookup operations |
US7415463B2 (en) | 2003-05-13 | 2008-08-19 | Cisco Technology, Inc. | Programming tree data structures and handling collisions while performing lookup operations |
US7760719B2 (en) | 2004-06-30 | 2010-07-20 | Conexant Systems, Inc. | Combined pipelined classification and address search method and apparatus for switching environments |
US20060221967A1 (en) | 2005-03-31 | 2006-10-05 | Narayan Harsha L | Methods for performing packet classification |
US20060221956A1 (en) | 2005-03-31 | 2006-10-05 | Narayan Harsha L | Methods for performing packet classification via prefix pair bit vectors |
US7551609B2 (en) | 2005-10-21 | 2009-06-23 | Cisco Technology, Inc. | Data structure for storing and accessing multiple independent sets of forwarding information |
US20070121632A1 (en) | 2005-11-28 | 2007-05-31 | Arabella Software, Ltd. | Method and system for routing an IP packet |
US8284787B2 (en) | 2006-07-27 | 2012-10-09 | University Of Florida Research Foundation, Incorporated | Dynamic tree bitmap for IP lookup and update |
US7630367B2 (en) | 2006-09-01 | 2009-12-08 | Wipro Limited | Approach for fast IP address lookups |
CN100531140C (zh) * | 2006-12-20 | 2009-08-19 | 中国科学院计算技术研究所 | 一种实现无回溯的最长前缀匹配搜索的方法和装置 |
CN101141389B (zh) * | 2007-09-29 | 2010-06-16 | 华为技术有限公司 | 增强多位Trie树查找方法和装置 |
-
2008
- 2008-05-05 CN CN2008100969062A patent/CN101577662B/zh active Active
- 2008-09-30 US US12/241,513 patent/US7539153B1/en active Active
-
2009
- 2009-04-28 WO PCT/CN2009/071523 patent/WO2009135417A1/zh active Application Filing
- 2009-05-05 EP EP09159417A patent/EP2117184B1/de active Active
- 2009-05-05 AT AT09159417T patent/ATE549829T1/de active
Also Published As
Publication number | Publication date |
---|---|
CN101577662B (zh) | 2012-04-04 |
CN101577662A (zh) | 2009-11-11 |
WO2009135417A1 (zh) | 2009-11-12 |
EP2117184B1 (de) | 2012-03-14 |
EP2117184A1 (de) | 2009-11-11 |
US7539153B1 (en) | 2009-05-26 |
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