WO2003088547A3 - Monitoring a local area network - Google Patents

Monitoring a local area network Download PDF

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Publication number
WO2003088547A3
WO2003088547A3 PCT/US2003/010727 US0310727W WO03088547A3 WO 2003088547 A3 WO2003088547 A3 WO 2003088547A3 US 0310727 W US0310727 W US 0310727W WO 03088547 A3 WO03088547 A3 WO 03088547A3
Authority
WO
WIPO (PCT)
Prior art keywords
area network
local area
wlan
station
monitoring
Prior art date
Application number
PCT/US2003/010727
Other languages
French (fr)
Other versions
WO2003088547A2 (en
Inventor
Chia-Chee Kuan
Miles Wu
Dean Au
Original Assignee
Airmagnet Inc
Chia-Chee Kuan
Miles Wu
Dean Au
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 Airmagnet Inc, Chia-Chee Kuan, Miles Wu, Dean Au filed Critical Airmagnet Inc
Priority to EP03719640A priority Critical patent/EP1493240B1/en
Priority to DE60326330T priority patent/DE60326330D1/en
Priority to KR1020047016070A priority patent/KR100975163B1/en
Priority to JP2003585339A priority patent/JP4295122B2/en
Priority to CN038125641A priority patent/CN1656718B/en
Priority to CA2479854A priority patent/CA2479854C/en
Priority to AU2003223508A priority patent/AU2003223508A1/en
Publication of WO2003088547A2 publication Critical patent/WO2003088547A2/en
Publication of WO2003088547A3 publication Critical patent/WO2003088547A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/06—Answer-back mechanisms or circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
    • H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/16—Implementing security features at a particular protocol layer
    • H04L63/162—Implementing security features at a particular protocol layer at the data link layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0847—Transmission error
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/12—Network monitoring probes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/16—Threshold monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Abstract

A wireless local area network (WLAN) is monitored by receiving transmissions exchanged between one or more stations and an access point (AP) in the WLAN using a detector located in the WLAN. A database is compiled based on the received transmissions. The received transmissions are analyzed to determine the state of a station. The compiled database and the determined state of the station are used to diagnose connectivity problems of the station.
PCT/US2003/010727 2002-04-08 2003-04-08 Monitoring a local area network WO2003088547A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP03719640A EP1493240B1 (en) 2002-04-08 2003-04-08 Monitoring a local area network
DE60326330T DE60326330D1 (en) 2002-04-08 2003-04-08 MONITORING A LOCAL NETWORK
KR1020047016070A KR100975163B1 (en) 2002-04-08 2003-04-08 Monitoring a local area network
JP2003585339A JP4295122B2 (en) 2002-04-08 2003-04-08 Monitor local area network
CN038125641A CN1656718B (en) 2002-04-08 2003-04-08 Monitoring a local area network
CA2479854A CA2479854C (en) 2002-04-08 2003-04-08 Monitoring a local area network
AU2003223508A AU2003223508A1 (en) 2002-04-08 2003-04-08 Monitoring a local area network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37108402P 2002-04-08 2002-04-08
US60/371,084 2002-04-08

Publications (2)

Publication Number Publication Date
WO2003088547A2 WO2003088547A2 (en) 2003-10-23
WO2003088547A3 true WO2003088547A3 (en) 2004-02-05

Family

ID=29250634

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/010727 WO2003088547A2 (en) 2002-04-08 2003-04-08 Monitoring a local area network

Country Status (11)

Country Link
US (2) US7702775B2 (en)
EP (1) EP1493240B1 (en)
JP (2) JP4295122B2 (en)
KR (2) KR100980152B1 (en)
CN (1) CN1656718B (en)
AT (1) ATE424065T1 (en)
AU (1) AU2003223508A1 (en)
CA (1) CA2479854C (en)
DE (1) DE60326330D1 (en)
ES (1) ES2322894T3 (en)
WO (1) WO2003088547A2 (en)

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