CA2252211A1 - Delay monitoring of telecommunication networks - Google Patents

Delay monitoring of telecommunication networks

Info

Publication number
CA2252211A1
CA2252211A1 CA002252211A CA2252211A CA2252211A1 CA 2252211 A1 CA2252211 A1 CA 2252211A1 CA 002252211 A CA002252211 A CA 002252211A CA 2252211 A CA2252211 A CA 2252211A CA 2252211 A1 CA2252211 A1 CA 2252211A1
Authority
CA
Canada
Prior art keywords
cells
frame
frames
cell
telecommunication networks
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002252211A
Other languages
French (fr)
Other versions
CA2252211C (en
Inventor
Beata Malgorzata Mirek
Darren Frederick Toop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of CA2252211A1 publication Critical patent/CA2252211A1/en
Application granted granted Critical
Publication of CA2252211C publication Critical patent/CA2252211C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • 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
    • H04L2012/5625—Operations, administration and maintenance [OAM]
    • 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
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5649—Cell delay or jitter
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly

Abstract

Novel techniques are disclosed for continuously monitoring parameters of delay between two nodes in a telecommunication network such as an ATM or frame relay network. The techniques use measurement cells, i.e. test cells, test frames, performance management ATM OAM cells, or performance management frame relay frames.
These cells or frames contain a timestamp indicating the time a cell or frame is sent and a delay value indicating a difference between reception and transmission times of the cell or frame.
CA002252211A 1997-11-07 1998-10-29 Delay monitoring of telecommunication networks Expired - Fee Related CA2252211C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/965,930 1997-11-07
US08/965,930 US5878032A (en) 1997-11-07 1997-11-07 Delay monitoring of telecommunication networks

Publications (2)

Publication Number Publication Date
CA2252211A1 true CA2252211A1 (en) 1999-05-07
CA2252211C CA2252211C (en) 2002-06-04

Family

ID=25510690

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002252211A Expired - Fee Related CA2252211C (en) 1997-11-07 1998-10-29 Delay monitoring of telecommunication networks

Country Status (4)

Country Link
US (1) US5878032A (en)
EP (1) EP0915635B1 (en)
CA (1) CA2252211C (en)
DE (1) DE69824937T2 (en)

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Also Published As

Publication number Publication date
EP0915635B1 (en) 2004-07-07
DE69824937T2 (en) 2004-11-11
US5878032A (en) 1999-03-02
CA2252211C (en) 2002-06-04
DE69824937D1 (en) 2004-08-12
EP0915635A1 (en) 1999-05-12

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