SE9703292D0 - A lookup device and a method for classification and forwarding of packages - Google Patents

A lookup device and a method for classification and forwarding of packages

Info

Publication number
SE9703292D0
SE9703292D0 SE9703292A SE9703292A SE9703292D0 SE 9703292 D0 SE9703292 D0 SE 9703292D0 SE 9703292 A SE9703292 A SE 9703292A SE 9703292 A SE9703292 A SE 9703292A SE 9703292 D0 SE9703292 D0 SE 9703292D0
Authority
SE
Sweden
Prior art keywords
lookup device
forwarding
classification
memory means
stage
Prior art date
Application number
SE9703292A
Other languages
Swedish (sv)
Other versions
SE9703292L (en
SE511972C2 (en
Inventor
Peter Sjoedin
Andreas Moestedt
Original Assignee
Sics Swedish Inst Of Computers
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 Sics Swedish Inst Of Computers filed Critical Sics Swedish Inst Of Computers
Priority to SE9703292A priority Critical patent/SE511972C2/en
Publication of SE9703292D0 publication Critical patent/SE9703292D0/en
Priority to EP98943155A priority patent/EP1025678A2/en
Priority to CA002302744A priority patent/CA2302744A1/en
Priority to PCT/SE1998/001584 priority patent/WO1999013619A2/en
Priority to AU91008/98A priority patent/AU9100898A/en
Publication of SE9703292L publication Critical patent/SE9703292L/en
Publication of SE511972C2 publication Critical patent/SE511972C2/en

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
    • H04L45/742—Route cache; Operation thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The present invention relates to a lookup device (30) and a method for classification and forwarding of packets. The lookup device (30) comprises i stages (321, 322, 323, 324) wherein each stage (321, 322, 323, 324) represents a predetermined prefix length, and a prefix represents a group of addresses. The lookup device (30) also comprises a routing memory means (34) connected to said i:th stage (324), wherein each stage (321, 322, 323, 324) comprises a memory means (361, 362, 363, 364) for storing a table of entries, wherein each entry comprises a pointer field which either comprises a pointer to the memory means in the next stage, or a pointer to the routing memory means (34) storing the forwarding information.
SE9703292A 1997-09-09 1997-09-09 Lookup device and method for classifying and forwarding data packets SE511972C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9703292A SE511972C2 (en) 1997-09-09 1997-09-09 Lookup device and method for classifying and forwarding data packets
EP98943155A EP1025678A2 (en) 1997-09-09 1998-09-07 A lookup device and a method for classification and forwarding of packets
CA002302744A CA2302744A1 (en) 1997-09-09 1998-09-07 A lookup device and a method for classification and forwarding of packets
PCT/SE1998/001584 WO1999013619A2 (en) 1997-09-09 1998-09-07 A lookup device and a method for classification and forwarding of packets
AU91008/98A AU9100898A (en) 1997-09-09 1998-09-07 A lookup device and a method for classification and forwarding of packets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9703292A SE511972C2 (en) 1997-09-09 1997-09-09 Lookup device and method for classifying and forwarding data packets

Publications (3)

Publication Number Publication Date
SE9703292D0 true SE9703292D0 (en) 1997-09-09
SE9703292L SE9703292L (en) 1999-03-10
SE511972C2 SE511972C2 (en) 2000-01-10

Family

ID=20408224

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703292A SE511972C2 (en) 1997-09-09 1997-09-09 Lookup device and method for classifying and forwarding data packets

Country Status (5)

Country Link
EP (1) EP1025678A2 (en)
AU (1) AU9100898A (en)
CA (1) CA2302744A1 (en)
SE (1) SE511972C2 (en)
WO (1) WO1999013619A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6975631B1 (en) * 1998-06-19 2005-12-13 Juniper Networks, Inc. Network packet forwarding lookup with a reduced number of memory accesses
GB9912129D0 (en) * 1999-05-26 1999-07-28 3Com Corp Communication device with forwarding database having having a trie search facility
SE9903460L (en) * 1999-09-22 2001-03-23 Effnet Group Ab Method and system for fast routing lookups
US6799202B1 (en) * 1999-12-16 2004-09-28 Hachiro Kawaii Federated operating system for a server
GB2359693B (en) * 2000-02-26 2003-07-16 3Com Corp Network switch with truncated trie look-up facility
AU4737200A (en) * 2000-05-11 2001-11-20 Solidum Systems Corp. Packet classification state machine
JP2001326679A (en) * 2000-05-15 2001-11-22 Fujitsu Ltd Information unit, table retrieval device, table retrieval method, and recording medium
US6880064B1 (en) 2000-06-21 2005-04-12 Mosaid Technologies, Inc. Method and apparatus for physical width expansion of a longest prefix match lookup table
US6917954B2 (en) * 2001-05-30 2005-07-12 Mosaid Technologies, Inc. Load balancing in IP address lookup
GB2378622A (en) * 2001-08-11 2003-02-12 Zarlink Semiconductor Ltd Updating a lookup table used in mapping between TDM channels and packets
SE521907C2 (en) * 2002-01-21 2003-12-16 Rockstorm Technologies Ab Method and system for fast IP route search to determine where an IP datagram with a given destination address should be forwarded

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206856A (en) * 1989-12-27 1993-04-27 Bell Communications Research, Inc. Routing of network traffic
US5365520A (en) * 1992-03-27 1994-11-15 Motorola, Inc. Dynamic signal routing

Also Published As

Publication number Publication date
SE9703292L (en) 1999-03-10
SE511972C2 (en) 2000-01-10
AU9100898A (en) 1999-03-29
WO1999013619A3 (en) 1999-06-03
WO1999013619A2 (en) 1999-03-18
CA2302744A1 (en) 1999-03-18
EP1025678A2 (en) 2000-08-09

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Legal Events

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