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1. WO2005101761 - APPARATUS AND METHOD FOR TWO-STAGE PACKET CLASSIFICATION USING MOST SPECIFIC FILTER MATCHING AND TRANSPORT LEVEL SHARING

Publication Number WO/2005/101761
Publication Date 27.10.2005
International Application No. PCT/US2005/010924
International Filing Date 31.03.2005
IPC
H04L 12/56 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
54Store-and-forward switching systems
56Packet switching systems
H04L 29/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
CPC
H04L 29/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
02Communication control
06characterised by a protocol
H04L 47/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
10Flow control or congestion control
H04L 47/2441
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
10Flow control or congestion control
24depending on the type of traffic, e.g. priority or quality of service [QoS]
2441Flow classification
H04L 63/0236
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
02for separating internal from external traffic, e.g. firewalls
0227Filtering policies
0236Filtering by address, protocol, port number or service, e.g. IP-address or URL
H04L 63/0263
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
02for separating internal from external traffic, e.g. firewalls
0227Filtering policies
0263Rule management
H04L 69/22
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
22Header parsing or analysis
Applicants
  • INTEL CORPORATION (a corporation of Delaware) [US]/[US] (AllExceptUS)
  • KUMAR, Alok [IN]/[US] (UsOnly)
  • KOUNAVIS, Michael [GR]/[US] (UsOnly)
  • YAVATKAR, Raj [IN]/[US] (UsOnly)
  • CHANDRA, Prashant [IN]/[US] (UsOnly)
  • LAKSHMANAMURTHY, Sridhar [IN]/[US] (UsOnly)
  • KUO, Chen-Chi [--]/[US] (UsOnly)
  • VIN, Harrick [IN]/[US] (UsOnly)
Inventors
  • KUMAR, Alok
  • KOUNAVIS, Michael
  • YAVATKAR, Raj
  • CHANDRA, Prashant
  • LAKSHMANAMURTHY, Sridhar
  • KUO, Chen-Chi
  • VIN, Harrick
Agents
  • VINCENT, Lester, J._
Priority Data
10/822,03408.04.2004US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHOD FOR TWO-STAGE PACKET CLASSIFICATION USING MOST SPECIFIC FILTER MATCHING AND TRANSPORT LEVEL SHARING
(FR) APPAREIL ET PROCEDE POUR UNE CLASSIFICATION PAR PAQUET EN DEUX ETAPES AU MOYEN D'UNE MISE EN CORRESPONDANCE DE FILTRAGES PLUS SPECIFIQUES ET DU PARTAGE DU NIVEAU DE TRANSPORT
Abstract
(EN)
A method and apparatus for two-stage packet classification. In the first stage, which may be implemented in software, a packet is classified on the basis of the packet's network path and, perhaps, its protocol. In the second stage, which may be implemented in hardware, the packet is classified on the basis of one or more transport level fields of the packet. An apparatus of two-stage packet classification may include a processing system for first stage code execution, a classification circuit for performing the second stage of classification, and a memory to store a number of bins, each bin including one or more rules.
(FR)
L'invention concerne un procédé et un appareil pour une classification par paquets en deux étapes. Dans la première étape, qui peut être implémentée dans un logiciel, un paquet est classé sur la base du passage de réseau du paquet, et éventuellement sur son protocole. Dans la seconde étape, qui peut être implémentée dans du matériel, le paquet est classé sur la base d'un ou plusieurs champs de niveaux de transport du paquet. Un appareil de la classification par paquets en deux étapes peut comprendre un système de traitement pour l'exécution du code de la première étape, un circuit de classification destiné à effectuer la seconde étape de classification, et une mémoire pour stocker de nombreux emplacements, chacun comprenant une ou plusieurs règles.
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