CA2358739A1 - High-capacity packet-switched ring network - Google Patents

High-capacity packet-switched ring network Download PDF

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Publication number
CA2358739A1
CA2358739A1 CA002358739A CA2358739A CA2358739A1 CA 2358739 A1 CA2358739 A1 CA 2358739A1 CA 002358739 A CA002358739 A CA 002358739A CA 2358739 A CA2358739 A CA 2358739A CA 2358739 A1 CA2358739 A1 CA 2358739A1
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CA
Canada
Prior art keywords
further including
packet
cycle
data packet
composite
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
CA002358739A
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French (fr)
Other versions
CA2358739C (en
Inventor
Mikhail Boroditsky
Nicholas J. Frigo
Aleksandra Smiljanic
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AT&T Corp
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AT&T Corp
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Publication date
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Publication of CA2358739A1 publication Critical patent/CA2358739A1/en
Application granted granted Critical
Publication of CA2358739C publication Critical patent/CA2358739C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • H04J14/0283—WDM ring architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0226—Fixed carrier allocation, e.g. according to service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • 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
    • H04L12/5602—Bandwidth control in ATM Networks, e.g. leaky bucket
    • 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
    • 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
    • H04Q11/0066—Provisions for optical burst or packet networks
    • 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
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5632—Bandwidth allocation
    • 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
    • H04L2012/5678—Traffic aspects, e.g. arbitration, load balancing, smoothing, buffer management
    • H04L2012/5679—Arbitration or scheduling
    • 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
    • H04Q2011/002—Construction using optical delay lines or optical buffers or optical recirculation
    • 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
    • H04Q2011/0022—Construction using fibre gratings
    • 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
    • H04Q2011/0033—Construction using time division switching
    • 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
    • H04Q2011/0035—Construction using miscellaneous components, e.g. circulator, polarisation, acousto/thermo optical
    • 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
    • H04Q2011/0064—Arbitration, scheduling or medium access control aspects
    • 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
    • H04Q2011/0069—Network aspects using dedicated optical channels
    • 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
    • H04Q2011/009—Topology aspects
    • H04Q2011/0092—Ring

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)

Abstract

A packet-switched WDMA ring network has an architecture utilizing packet stacking and unstacking for enabling nodes to access the entire link capacity by transmitting and receiving packets on available wavelengths. Packets are added and dropped from the ring by optical switches. A flexible credit-based MAC
protocol along with an admission algorithm enhance the network throughput capacity.

Claims (21)

  1. I. A method for transmitting and receiving stacked packets on a ring network comprising:
    stacking packets of a predetermined number of wavelengths to form a composite;
    transmit data packet;

    buffering the transmit data packet in a transmit switch;
    transmitting the transmit data packet onto the ring network via an optical switch;
    receiving a receive data packet via the optical switch;
    buffering the receive data packet in a receive switch; and unstacking the receive data packet.
  2. 2. The method according to claim 1, further including stacking the transmit data packet using at least one of a tunable laser, a circulator coupled to the tunable laser, and a demultiplexer coupled to the circulator followed by delay lines and a reflector.
  3. 3. The method according to claim 1, further including unstacking the receive data packet using at least one of a circulator, a demultiplexer coupled to the circulator followed by delay lines and a reflector.
  4. 4. The method according to claim l, further including setting the optical switch and the transmit switch to a cross state to put the transmit data packet on the ring network.
  5. 5. The method according to claim 1, further including setting the optical switch and the receive switch to a cross state to obtain the receive data packet from the ring network.
  6. 6. The method according to claim l, further including making transmission reservations in time via a control channel;
    dividing the time into cycles; and scheduling transmission reservations, packet transmissions and receptions.
  7. 7. The method according to claim 6, further including scheduling the transmission reservation by a node in a first potentially empty slot of a current cycle on,the control channel for a destination node that has not been addressed iri the cycle.
  8. 8. The method according to claim 6, further including stacking the composite packet in a next cycle after its transmission has been reserved.
  9. 9. The method according to claim 6, further including storing a packet until it is transmitted two cycles after its transmission has been reserved.
  10. 10. The method according to claim 6, further including receiving a packet from the ring by a node two cycles after its reservation has been observed on the control channel.
  11. 11. The method according to claim 6, further including storing a packet until it is unstacked at a receiver in the next cycle after it has been received.
  12. 12. The method according to claim 1, further including reserving time slots available within a frame via a control channel; and allocating the reserved times slots into a number of cycles, wherein a number of time slots in each cycle equals the predetermined number of wavelengths.
  13. 13. The method according to claim 12, further including reserving time slots in a current reservation cycle to transmit the composite packets to a selected destination where the selected destination is not reserved in the current reservation cycle.
  14. 14. The method according to claim 13, wherein a node makes a reservation only if it has a composite packet to send and unused credits for some destination.
  15. 15. The method according to claim 12, further including stacking the composite packet in a cycle adjacent a cycle in which a time slot was reserved.
  16. 16. The method according to claim 15, further including transmitting the composite packet two cycles after the cycle in which the time slot was reserved.
  17. 17. The method according to claim 12, further including receiving the composite packet two cycles after its reservation has been observed, and buffering a received packet.
  18. 18. The method according to claim 17, further including unstacking the buffered packet in a cycle adjacent a cycle in which the packet was received.
  19. 19. The method according to claim 12, further including reserving bandwidth using credits.
  20. 20. The method according to claim 19, further including renewing credits once per frame of a negotiated length.
  21. 21. The method according to claim 20, further including ending a frame when each queue is empty and/or out of credits.
CA2358739A 2000-10-12 2001-10-12 High-capacity packet-switched ring network Expired - Fee Related CA2358739C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US23976600P 2000-10-12 2000-10-12
US24046400P 2000-10-13 2000-10-13
US60/240,464 2000-10-13
US60/239,766 2000-10-13
US09/940,034 2001-08-27
US09/940,034 US7085494B2 (en) 2000-10-12 2001-08-27 High-capacity packet-switched ring network

Publications (2)

Publication Number Publication Date
CA2358739A1 true CA2358739A1 (en) 2002-04-12
CA2358739C CA2358739C (en) 2010-07-13

Family

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Family Applications (1)

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CA2358739A Expired - Fee Related CA2358739C (en) 2000-10-12 2001-10-12 High-capacity packet-switched ring network

Country Status (5)

Country Link
US (5) US7085494B2 (en)
EP (1) EP1204238B1 (en)
JP (1) JP4290357B2 (en)
CA (1) CA2358739C (en)
DE (1) DE60141240D1 (en)

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Also Published As

Publication number Publication date
US8619807B2 (en) 2013-12-31
EP1204238B1 (en) 2010-02-03
US20090074409A1 (en) 2009-03-19
EP1204238A2 (en) 2002-05-08
DE60141240D1 (en) 2010-03-25
US20090074005A1 (en) 2009-03-19
US20130010805A1 (en) 2013-01-10
JP4290357B2 (en) 2009-07-01
US8306052B2 (en) 2012-11-06
US7805076B2 (en) 2010-09-28
CA2358739C (en) 2010-07-13
US7085494B2 (en) 2006-08-01
US7454139B2 (en) 2008-11-18
EP1204238A3 (en) 2004-05-26
JP2002271272A (en) 2002-09-20
US20060251417A1 (en) 2006-11-09
US20020085802A1 (en) 2002-07-04

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