WO2001078309A3 - A method and apparatus for wire-speed application layer classification of data packets - Google Patents

A method and apparatus for wire-speed application layer classification of data packets Download PDF

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Publication number
WO2001078309A3
WO2001078309A3 PCT/IB2001/000697 IB0100697W WO0178309A3 WO 2001078309 A3 WO2001078309 A3 WO 2001078309A3 IB 0100697 W IB0100697 W IB 0100697W WO 0178309 A3 WO0178309 A3 WO 0178309A3
Authority
WO
WIPO (PCT)
Prior art keywords
bit
memory
wire
data packets
hash
Prior art date
Application number
PCT/IB2001/000697
Other languages
French (fr)
Other versions
WO2001078309A2 (en
Inventor
Nun Michael Ben
Sagi Ravid
Itzhak Barak
Offer Weil
Original Assignee
Cube Ltd P
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cube Ltd P filed Critical Cube Ltd P
Priority to AU48708/01A priority Critical patent/AU4870801A/en
Priority to GB0223453A priority patent/GB2377528B/en
Publication of WO2001078309A2 publication Critical patent/WO2001078309A2/en
Publication of WO2001078309A3 publication Critical patent/WO2001078309A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • 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
    • H04L45/7453—Address table lookup; Address filtering using hashing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/19—Flow control; Congestion control at layers above the network layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2441—Traffic characterised by specific attributes, e.g. priority or QoS relying on flow classification, e.g. using integrated services [IntServ]

Abstract

A data packet classifier to classify a plurality of N-bit input tuples, said classifier comprising a hash address, a memory and a comparison unit. The hash address generator generate a plurality of M-bit hash addresses from said plurality of N-bit input tuples, wherein M is significantly smaller than N. The memory has a plurality of memory entries and is addressable by said plurality of M-bit hash addresses, each such address corresponding to a plurality of memory entries, each of said plurality of memory entries capable of storing one of said plurality of N-bit tuples and an associated process flow information. The comparison unit determines if an incoming N-bit tuple can be matched with a stored N-bit tuple. The associated process flow information is output if a match is found and wherein a new entry is created in the memory for the incoming N-bit tuple if a match is not found.
PCT/IB2001/000697 2000-04-11 2001-04-04 A method and apparatus for wire-speed application layer classification of data packets WO2001078309A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU48708/01A AU4870801A (en) 2000-04-11 2001-04-04 A method and apparatus for wire-speed application layer classification of data packets
GB0223453A GB2377528B (en) 2000-04-11 2001-04-04 A method for wire-speed generation of an m-bit hash address from an n-bit tuple of a packet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54703400A 2000-04-11 2000-04-11
US09/547,034 2000-04-11

Publications (2)

Publication Number Publication Date
WO2001078309A2 WO2001078309A2 (en) 2001-10-18
WO2001078309A3 true WO2001078309A3 (en) 2002-05-16

Family

ID=24183070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000697 WO2001078309A2 (en) 2000-04-11 2001-04-04 A method and apparatus for wire-speed application layer classification of data packets

Country Status (3)

Country Link
AU (1) AU4870801A (en)
GB (1) GB2377528B (en)
WO (1) WO2001078309A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7248585B2 (en) 2001-10-22 2007-07-24 Sun Microsystems, Inc. Method and apparatus for a packet classifier
US7093092B2 (en) 2002-12-10 2006-08-15 Isic Corporation Methods and apparatus for data storage and retrieval
CN1633111B (en) * 2005-01-14 2010-04-28 中国科学院计算技术研究所 High-speed network traffic flow classification method
JP6323099B2 (en) * 2014-03-20 2018-05-16 カシオ計算機株式会社 Display device, terminal device, and program
US10721160B2 (en) 2014-05-15 2020-07-21 Samsung Electronics Co., Ltd. Method of distributing data and device supporting the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694845A1 (en) * 1994-07-28 1996-01-31 Sun Microsystems, Inc. Low-latency memory indexing method and structure
WO1999013620A2 (en) * 1997-09-09 1999-03-18 Sics A lookup device and a method for classification and forwarding of packets in packet-switched networks
US5920900A (en) * 1996-12-30 1999-07-06 Cabletron Systems, Inc. Hash-based translation method and apparatus with multiple level collision resolution

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694845A1 (en) * 1994-07-28 1996-01-31 Sun Microsystems, Inc. Low-latency memory indexing method and structure
US5920900A (en) * 1996-12-30 1999-07-06 Cabletron Systems, Inc. Hash-based translation method and apparatus with multiple level collision resolution
WO1999013620A2 (en) * 1997-09-09 1999-03-18 Sics A lookup device and a method for classification and forwarding of packets in packet-switched networks

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHANDRANMENON G P ET AL: "TRADING PACKET HEADERS FOR PACKET PROCESSING", IEEE / ACM TRANSACTIONS ON NETWORKING, IEEE INC. NEW YORK, US, vol. 4, no. 2, 1 April 1996 (1996-04-01), pages 141 - 152, XP000582666, ISSN: 1063-6692 *
RAMAKRISHNA M V ET AL: "Perfect hashing functions for hardware applications", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON DATA ENGINEERING. KOBE, JP, APRIL 8 - 12, 1991, LOS ALAMITOS, IEEE COMP. SOC. PRESS, US, vol. CONF. 7, 8 April 1991 (1991-04-08), pages 464 - 470, XP010022765, ISBN: 0-8186-2138-9 *

Also Published As

Publication number Publication date
AU4870801A (en) 2001-10-23
WO2001078309A2 (en) 2001-10-18
GB0223453D0 (en) 2002-11-13
GB2377528B (en) 2004-10-27
GB2377528A (en) 2003-01-15

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