Global patent index - EP 1025678 A2

EP 1025678 A2 2000-08-09 - A LOOKUP DEVICE AND A METHOD FOR CLASSIFICATION AND FORWARDING OF PACKETS

Title (en)

A LOOKUP DEVICE AND A METHOD FOR CLASSIFICATION AND FORWARDING OF PACKETS

Title (de)

NACHSCHLAGEVORRICHTUNG UND VERFAHREN ZUR KLASSIFIKATION UND WEITERSENDUNG VON PAKETEN

Title (fr)

DISPOSITIF DE CONSULTATION ET PROCEDE DE CLASSEMENT ET D'ACHEMINEMENT DE PAQUETS

Publication

EP 1025678 A2 (EN)

Application

EP 98943155 A

Priority

  • SE 9801584 W
  • SE 9703292 A

Abstract (en)

[origin: WO9913619A2] 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.

IPC 1-7 (main, further and additional classification)

H04L 12/56

IPC 8 full level (invention and additional information)

H04L 12/701 (2013.01); H04L 12/747 (2013.01)

CPC (invention and additional information)

H04L 45/00 (2013.01); H04L 45/742 (2013.01)

Citation (search report)

See references of WO 9913619A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9913619 A2 19990318; WO 9913619 A3 19990603; AU 9100898 A 19990329; CA 2302744 A1 19990318; EP 1025678 A2 20000809; SE 511972 C2 20000110; SE 9703292 D0 19970909; SE 9703292 L 19990310

INPADOC legal status

2003-06-18 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20030417

2001-04-11 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: SICS, SWEDISH INSTITUTE OF COMPUTER SCIENCE AB

- Ref Legal Event Code: RAP1

2000-08-09 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000410

2000-08-09 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE