WO2003013066A3 - Method and apparatus for programmable generation of traffic streams - Google Patents

Method and apparatus for programmable generation of traffic streams Download PDF

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Publication number
WO2003013066A3
WO2003013066A3 PCT/US2002/024348 US0224348W WO03013066A3 WO 2003013066 A3 WO2003013066 A3 WO 2003013066A3 US 0224348 W US0224348 W US 0224348W WO 03013066 A3 WO03013066 A3 WO 03013066A3
Authority
WO
WIPO (PCT)
Prior art keywords
test
packets
ports
traffic
network communications
Prior art date
Application number
PCT/US2002/024348
Other languages
French (fr)
Other versions
WO2003013066A2 (en
Inventor
I Claude Denton
Richard B Keller
Original Assignee
Network Elements Inc
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 Network Elements Inc filed Critical Network Elements Inc
Publication of WO2003013066A2 publication Critical patent/WO2003013066A2/en
Publication of WO2003013066A3 publication Critical patent/WO2003013066A3/en

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Classifications

    • 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
    • H04L43/50—Testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/55—Prevention, detection or correction of errors
    • H04L49/555—Error detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5628—Testing
    • 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
    • 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
    • H04L49/00—Packet switching elements
    • H04L49/25—Routing or path finding in a switch fabric
    • H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
    • H04L49/254—Centralised controller, i.e. arbitration or scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/30—Peripheral units, e.g. input or output ports

Abstract

Methods and apparatus provide single or multi-port, flexible, cost-effective, built-in self-test capabilities for network communications equipment, such as for example switches, and programmably generate, and subsequently analyze, one or more sequences of test packets, wherein the test packets simulate at least two flows of traffic. Such test packets can have programmable headers, payloads, and duty cycle. A line card embodying the present invention may generate its own traffic pattern, which may be similar or identical, to traffic patterns observed on Internet backbones. These traffic patterns may contain a bimodal distribution of control packets interspersed with data packets wherein the control packets and data packets are relatively short and long respectively. A plurality of test packet generators/receivers (100) can be deployed in a network communications device having a plurality of ports. In such a configuration, test generator/receiver (100) is associated with each of the plurality of ports. Under software control, test packets can be sent from at least any one of the plurality of ports to at least any other one of the plurality of ports.
PCT/US2002/024348 2001-07-31 2002-07-31 Method and apparatus for programmable generation of traffic streams WO2003013066A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/919,728 US7184408B2 (en) 2001-07-31 2001-07-31 Method and apparatus for programmable generation of traffic streams
US09/919,728 2001-07-31

Publications (2)

Publication Number Publication Date
WO2003013066A2 WO2003013066A2 (en) 2003-02-13
WO2003013066A3 true WO2003013066A3 (en) 2003-04-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/024348 WO2003013066A2 (en) 2001-07-31 2002-07-31 Method and apparatus for programmable generation of traffic streams

Country Status (2)

Country Link
US (3) US7184408B2 (en)
WO (1) WO2003013066A2 (en)

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Also Published As

Publication number Publication date
US8072891B2 (en) 2011-12-06
US7184408B2 (en) 2007-02-27
US20030179777A1 (en) 2003-09-25
US20060280124A1 (en) 2006-12-14
WO2003013066A2 (en) 2003-02-13
US20070008897A1 (en) 2007-01-11
US7804782B2 (en) 2010-09-28

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