WO1997025829A3 - System and method for photonic facility and line protection switching - Google Patents

System and method for photonic facility and line protection switching Download PDF

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Publication number
WO1997025829A3
WO1997025829A3 PCT/US1996/019919 US9619919W WO9725829A3 WO 1997025829 A3 WO1997025829 A3 WO 1997025829A3 US 9619919 W US9619919 W US 9619919W WO 9725829 A3 WO9725829 A3 WO 9725829A3
Authority
WO
WIPO (PCT)
Prior art keywords
controller
protection switching
line protection
photonic
facility
Prior art date
Application number
PCT/US1996/019919
Other languages
French (fr)
Other versions
WO1997025829A2 (en
Inventor
John A Fee
Original Assignee
Mci Communications Corp
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 US08/577,663 external-priority patent/US5731887A/en
Application filed by Mci Communications Corp filed Critical Mci Communications Corp
Priority to JP09525209A priority Critical patent/JP2000503192A/en
Priority to EP96945606A priority patent/EP0870412A2/en
Publication of WO1997025829A2 publication Critical patent/WO1997025829A2/en
Publication of WO1997025829A3 publication Critical patent/WO1997025829A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0297—Optical equipment protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0289—Optical multiplex section protection
    • H04J14/0291—Shared protection at the optical multiplex section (1:1, n:m)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0293—Optical channel protection
    • H04J14/0295—Shared protection at the optical channel (1:1, n:m)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0279—WDM point-to-point architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0009—Construction using wavelength filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0011—Construction using wavelength conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0043—Fault tolerance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0052—Interconnection of switches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0083—Testing; Monitoring

Abstract

A system and method for photonic facility and line protection switching in an optical network to permit fault tolerant operation. The optical network comprises components whose operation is monitored by a controller. If the controller determines an optical transmission line in a single path has failed, the controller will re-route the signal path through a spare, or protect component. Alternatively, the controller can re-route the signal path through a frequency translator and another optical transmission line.
PCT/US1996/019919 1995-12-22 1996-12-23 System and method for photonic facility and line protection switching WO1997025829A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP09525209A JP2000503192A (en) 1995-12-22 1996-12-23 Optical function and line protection exchange connection system and method
EP96945606A EP0870412A2 (en) 1995-12-22 1996-12-23 System and method for photonic facility and line protection switching

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/577,663 US5731887A (en) 1995-12-22 1995-12-22 System and method for photonic facility and line protection switching
US08/577,663 1995-12-22
US08/672,808 US5777761A (en) 1995-12-22 1996-06-28 System and method for photonic facility and line protection switching using wavelength translation
US08/672,808 1996-06-28

Publications (2)

Publication Number Publication Date
WO1997025829A2 WO1997025829A2 (en) 1997-07-17
WO1997025829A3 true WO1997025829A3 (en) 1997-10-23

Family

ID=27077307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/019919 WO1997025829A2 (en) 1995-12-22 1996-12-23 System and method for photonic facility and line protection switching

Country Status (6)

Country Link
US (1) US5777761A (en)
EP (1) EP0870412A2 (en)
JP (1) JP2000503192A (en)
CA (1) CA2241106A1 (en)
MX (1) MX9805051A (en)
WO (1) WO1997025829A2 (en)

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Also Published As

Publication number Publication date
JP2000503192A (en) 2000-03-14
EP0870412A2 (en) 1998-10-14
US5777761A (en) 1998-07-07
MX9805051A (en) 1998-10-31
CA2241106A1 (en) 1997-07-17
WO1997025829A2 (en) 1997-07-17

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