WO2000074310A3 - Method and system for path protection in a communications network - Google Patents

Method and system for path protection in a communications network Download PDF

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Publication number
WO2000074310A3
WO2000074310A3 PCT/US2000/015457 US0015457W WO0074310A3 WO 2000074310 A3 WO2000074310 A3 WO 2000074310A3 US 0015457 W US0015457 W US 0015457W WO 0074310 A3 WO0074310 A3 WO 0074310A3
Authority
WO
WIPO (PCT)
Prior art keywords
path
protection
working
paths
communications network
Prior art date
Application number
PCT/US2000/015457
Other languages
French (fr)
Other versions
WO2000074310A2 (en
Inventor
Pierre A Humblet
Bruce D Miller
Raj Shanmugaraj
Steven Sherry
Peter B Beaulieu
Michael W Fortuna
Michael C Yip
William Abraham
Original Assignee
Astral Point Communications In
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
Priority claimed from US09/324,454 external-priority patent/US6992978B1/en
Application filed by Astral Point Communications In filed Critical Astral Point Communications In
Priority to AU53235/00A priority Critical patent/AU5323500A/en
Publication of WO2000074310A2 publication Critical patent/WO2000074310A2/en
Publication of WO2000074310A3 publication Critical patent/WO2000074310A3/en

Links

Classifications

    • 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
    • H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections
    • 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
    • H04L2012/5619—Network Node Interface, e.g. tandem connections, transit switching
    • 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]
    • H04L2012/5627—Fault tolerance and recovery
    • 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

Abstract

A system and method for fast and reliable failure notification and accelerated switchover for path protection in a communications network of nodes interconnected by communications links is described. A method of path protection includes establishing plural working paths through the nodes. For each working path, an associated protection path is assigned. Upon a failure event, working paths that include the failed link are switched to their respective protection paths. The working and protection paths can include links on different networks having different media. At each node, linked lists for protection path activation, working path deactivation and path preemption are implemented upon a failure event.
PCT/US2000/015457 1999-06-02 2000-05-31 Method and system for path protection in a communications network WO2000074310A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU53235/00A AU5323500A (en) 1999-06-02 2000-05-31 Method and system for path protection in a communications network

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/324,454 1999-06-02
US09/324,454 US6992978B1 (en) 1999-06-02 1999-06-02 Method and system for path protection in a communications network
US52447900A 2000-03-13 2000-03-13
US09/524,479 2000-03-13

Publications (2)

Publication Number Publication Date
WO2000074310A2 WO2000074310A2 (en) 2000-12-07
WO2000074310A3 true WO2000074310A3 (en) 2001-06-07

Family

ID=26984465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/015457 WO2000074310A2 (en) 1999-06-02 2000-05-31 Method and system for path protection in a communications network

Country Status (2)

Country Link
AU (1) AU5323500A (en)
WO (1) WO2000074310A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2327896A1 (en) * 2000-12-08 2002-06-08 Alcatel Canada Inc. An mpls implementation on an atm platform
ATE438983T1 (en) * 2001-06-05 2009-08-15 Ericsson Ab ETHERNET PROTECTION SYSTEM
JP4777552B2 (en) * 2001-08-02 2011-09-21 富士通株式会社 Node device and network system in network
US7130264B2 (en) 2001-12-26 2006-10-31 Ciena Corporation Service protection method and apparatus for TDM or WDM communications networks
US7796503B2 (en) 2002-09-03 2010-09-14 Fujitsu Limited Fault tolerant network routing
BR112014010838A8 (en) * 2011-11-11 2017-06-20 Nec Corp wireless transmission device, fault information forwarding method and fault information notification method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828400A1 (en) * 1996-08-20 1998-03-11 Nec Corporation Communication network recoverable from link failure using prioritized recovery classes
EP0836344A2 (en) * 1996-08-19 1998-04-15 Nec Corporation ATM virtual path switching node

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0836344A2 (en) * 1996-08-19 1998-04-15 Nec Corporation ATM virtual path switching node
EP0828400A1 (en) * 1996-08-20 1998-03-11 Nec Corporation Communication network recoverable from link failure using prioritized recovery classes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
RYUTARO KAWAMURA ET AL: "SELF-HEALING VIRTUAL PATH ARCHITECTURE IN ATM NETWORKS", IEEE COMMUNICATIONS MAGAZINE,US,IEEE SERVICE CENTER. PISCATAWAY, N.J, vol. 33, no. 9, 1 September 1995 (1995-09-01), pages 72 - 79, XP000528012, ISSN: 0163-6804 *
VEITCH P ET AL: "ATM NETWROK RESILIENCE", IEEE NETWORK: THE MAGAZINE OF COMPUTER COMMUNICATIONS,US,IEEE INC. NEW YORK, vol. 11, no. 5, 1 September 1997 (1997-09-01), pages 26 - 33, XP000699938, ISSN: 0890-8044 *

Also Published As

Publication number Publication date
WO2000074310A2 (en) 2000-12-07
AU5323500A (en) 2000-12-18

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