We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byElle Iddings
Modified about 1 year ago
Next-Generation ROADMs October 1, 2012 Sheldon Walklin CTO, Optelian
© 2011 Optelian. All rights reserved. 2 Contents Introduction Wavelength Selective Switch Colorless, Directionless and Contentionless Flexible Bandwidth ROADMs and Transmission Beyond 100 Gb/s ROADM Control, OpenFlow and SDN Conclusion
© 2011 Optelian. All rights reserved. 3 Wavelength Selective Switch Functionality Nx1 WSS... SW 1 VOA 1 VOA M Common Port 1... Port N SW M
© 2011 Optelian. All rights reserved. Colorless, Directionless and Contentionless (CDC) 4 Colorless Any wavelength can be dynamically added/dropped without having to re-fiber a transceiver. Directionless A wavelength can be dynamically added/dropped from any direction without having to re-fiber a transceiver. Contentionless A wavelength can be re-used on all directions without any restrictions.
© 2011 Optelian. All rights reserved. 5 4-Degree ROADM (Colored) In general, can build an N-degree ROADM using Nx1 WSSs and 1xN splitters. The color and direction are fixed by fiber connections.
© 2011 Optelian. All rights reserved. 6 4-Degree ROADM (Colorless) Any transceiver wavelength (color) can be remotely configured The direction is fixed by fiber connections. Reduced number of access ports compared to colored.
© 2011 Optelian. All rights reserved. 7 Colorless and Directionless Wavelength Contention Structure for cross connecting between degrees remains the same as shown for the 4-degree ROADM on earlier slide.
© 2011 Optelian. All rights reserved. 8 Colorless, Directionless and Contentionless (using NxM WSSs)
© 2011 Optelian. All rights reserved. 9 Colorless, Directionless and Contentionless (using Broadcast-and-Select with Tunable Filters) 4x1 SW A Drop directions BCD 4x1 SW 4x1 SW TF 4x1 SW 4x1 SW 4x1 SW A Add directions BCD CDC add ports CDC drop ports
© 2011 Optelian. All rights reserved. 10 Colorless, Directionless and Contentionless (using Adjunct NxM Photonic Switches) Use NxM photonic switches to upgrade existing colored ROADMs to full CDC functionality
© 2011 Optelian. All rights reserved. 11 Ideal CDC WSS Concept module Non-blocking wavelength switching between any set of ports. Per wavelength attenuation control at line egress ports. Low insertion loss (up to a few dB) Very high reliability.
© 2011 Optelian. All rights reserved. 12 The Benefit of CDC Functionality Without CDC, cannot automatically restore optical circuit for failure on Span S1 or S6, or power failure at Node R2 or R4. CDC allows more flexibility to remotely reroute optical circuit when optimizing network utilization. Consideration: OTN and/or Layer 2+ protection and switching capabilities may reduce need for optical circuit dynamic routing.
© 2011 Optelian. All rights reserved. 13 Flexible Bandwidth ROADMs Flexible bandwidth (FB) ROADMs (aka gridless ROADMs) allow the passband center and/or width to be dynamically adjusted. Many people advocate that FB ROADMs will be required to support bit rates beyond 100G.
© 2011 Optelian. All rights reserved. 14 Considerations for Transmission Beyond 100 Gb/s For 40G and 100G transmission, the client interface has transitioned to parallel optics, while the line interface has retained single-carrier optics for improved transmission capacity. Parallel optics will likely be required on the line interface for bit rates approaching 1 Tb/s and beyond. Multi-carrier channels or superchannels are likely to be used for long- haul transmission beyond 100 Gb/s, with PDM-QPSK used for each constituent carrier. PDM-xQAM may be used in Metro (shorter distance) applications. Although FB ROADMs may provide improved spectral efficiency, they are not required for transmission beyond 100 Gb/s.
© 2011 Optelian. All rights reserved. ROADM Control 15 Automated Optical Layer Controls the power level of each wavelength at ROADM ports to a set target (Automatic Power Balancing) Span or link gain control Automated Wavelength Circuit Provisioning Impairment-aware path computation (wavelength routing) ROADM switch configuration
© 2011 Optelian. All rights reserved. Automated Wavelength Circuit Provisioning 16 Connection Controller Path Computation Element A-to-Z circuit request with routing constraints viable route(s) and required regen location(s) impairment-aware Optical Network Optical Network wavelength circuit request signaling done 5
© 2011 Optelian. All rights reserved. OpenFlow and SDN 17 R2 R3 R7 R4 R1 R8 R5 R6 s1 s3 s2 s10 s5 s4 s7 s11 s12 s6 s8 s9 OpenFlow Controller App Centralized dynamic control Simple flow table entry at each ROADM for wavelength connection Smart Apps – must be aware of topology, resource availability and state, fiber properties, impairment modeling, etc. Opportunity for OpenFlow applications to have multi- layer control and visibility Apps can evolve independently of physical network
© 2011 Optelian. All rights reserved. 18 Conclusion Current generation ROADMs use WSS modules and have colored or colorless access ports. CDC functionality generally has a higher capital cost and lower access port density, but may provide lower operational costs. FB ROADMs may provide improved spectral efficiency, but are not required to achieve transmission beyond 100 Gb/s Multi-carrier channels or superchannels will likely be used for long-haul transmission beyond 100 Gb/s, with PDM-QPSK used for each constituent carrier. PDM-xQAM may see application in the Metro Automated ROADM networks are well-suited to centralized control, making OpenFlow a good match. This could also facilitate multi-layer control.
Reconfigurable Optical Mesh and Network Intelligence Nazar Neayem Alcatel-Lucent Internet 2 - Summer 2007 Joint Techs Workshop Fermilab - Batavia, IL July.
© Ciena Confidential and Proprietary Connecting to Internet2 at 100G A ‘How To’ Cookbook Jim Archuleta Director, R&E Initiatives, Ciena Gov’t Solutions.
Company Confidential 1 Next Gen ROADMs “Less” is more: Colorless, Directionless, Contentionless, Gridless Krishna Bala, Ph.D Exec VP WSS Group
Slide No. 1 Optical Networking Technologies TM Reconfigurable OADMs Reconfigurable OADM (ROADM)
1 | © 2015 Infinera Open SDN in Metro P-OTS Networks Sten Nordell CTO Metro Business Group
Fujitsu Proprietary and Confidential All Rights Reserved, ©2006 Fujitsu Network Communications Simplicity and Automation in Reconfigurable Optical Networks.
Reconfigurable Optical Networks using WSS based ROADMs Steven D. Robinson VP, Product Management Five Essential Elements of the.
1 | Infinera Confidential & Proprietary Transport SDN: Key Drivers & Elements Chris Liou – Infinera Corp VP Network Strategy
Five Essential Elements for Future Regional Optical Networks Harold Snow Sr. Systems Architect, CTO Group.
Lecture: 9 Elastic Optical Networks Ajmal Muhammad, Robert Forchheimer Information Coding Group ISY Department.
1 Introduction to Optical Networks. 2 Telecommunications Network Architecture.
Ahmed Musa, John Medrano, Virgillio Gonzalez, Cecil Thomas University of Texas at El Paso Circuit Establishment in a Hybrid Optical-CDMA and WDM All- Optical.
By Zaheen Sherwani Intorduction to Lumentis & DWDM Technology.
Impact of Photonic Integration on Optical Services Serge Melle VP Technical Marketing, Infinera.
TTM1 – 2013: Core networks and Optical Circuit Switching (OCS)
Enabling Technologies and Challenges in Coherent Transport Networks David Dahan, Ph.D. ECI Telecom Ltd.
SMUCSE 8344 Protection & Restoration of Optical Networks.
Internet-2 Fall Meeting Optical Panel Tuesday September 20 th 2005
Connect communicate collaborate A Possible New Dawn for the Future GÉANT Network Architecture Tony Breach, NORDUnet A/S GN3 JRA1 Future Network Vilnius,
1 | © 2016 Infinera Copyright 3D: Future Transport Network Architectures.
© Ciena Corporation The Path to 100 G Ethernet Martin Nuss VP & Chief Technologist.
TNC2014, Dublin, May 2014 Klaus Grobe, Cornelius Fürst, Achim Autenrieth, Thomas Szyrkowiec, ADVA Optical Networking SE Spectrum as a Service.
9 1 SIT Today, there is a general consensus that in near future wide area networks (WAN)(such as, a nation wide backbone network) will be based on.
Towards Dynamic and Scalable Optical Networks Brian Smith 3 rd May 2005.
11/7/2000EE228A Lecture1 Problem We need more bandwidth –Data traffic doubles every 4 (up to 12) months –More users connect to the Internet … –And stay.
1 Reliable high-speed Ethernet and data services delivery Per B. Hansen ADVA Optical Networking February 14, 2005.
November 18, Traffic Grooming in Optical WDM Networks Presented by : Md. Shamsul Wazed University of Windsor.
Two-layer Restoration Scheme for IP over Optical Networks with MPLS Jia Ke, L. Mason, Q. Yang ICIS, School of EEE, Nanyang Technological University
E-Photon Summer School 1 Optimization of Wavelength Interleaved Radio-over-Fiber Systems Tiago Silveira, António Teixeira, R. Nogueira, P. André, P. Monteiro,
Internet 3 Optimizing Optical Networks with Multi-Haul Networks December 7 th, 2006 Roy Bowcutt.
1 Revision to DOE proposal Resource Optimization in Hybrid Core Networks with 100G Links Original submission: April 30, 2009 Date: May 4, 2009 PI: Malathi.
1 | Infinera Copyright 2013 © Intelligent Transport Network Manuel Morales Technical Director Infinera.
Page th IETF – Vancouver, December 2007 Framework for GMPLS and PCE Control of Wavelength Switched Optical Networks (WSON) & RWA Information for.
Chapter 4: Managing LAN Traffic. Frames Frame is the term used to describe data transmitted at Layer 2 of the OSI model. The source and destination addresses.
Deploying 40Gbps Wavelengths and Beyond Brian Smith.
Photonic Components Rob Johnson Standards Engineering Manager 10th July 2002 Rob Johnson Standards Engineering Manager 10th July 2002.
Use Cases for High Bandwidth Query and Control of Core Networks Greg Bernstein, Grotto Networking Young Lee, Huawei draft-bernstein-alto-large-bandwidth-cases-00.txt.
1 Optical Packet Switching Techniques Walter Picco MS Thesis Defense December 2001 Fabio Neri, Marco Ajmone Marsan Telecommunication Networks Group
Fiber-Optic Network Architectures. OSI & Layer Model This Course.
OSPF Extensions in support of O-E-O pools in GMPLS controlled all-optical networks draft-peloso-ccamp-wson-ospf-oeo-01 Pierre Peloso, Julien Meuric, Giovanni.
Metro/regional optical network architectures for Internet applications Per B. Hansen, Dir. Bus. Dev. Internet2’s Spring Member Meeting May 3, 2005.
RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. 1 RONY LEVY CEO & PRESIDENT RadioTel Wireless Communication.
McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 CH. 8: SWITCHING & DATAGRAM NETWORKS 7.1.
1 On the Management Issues over Lambda Networks 2005 / 08 / 23 Te-Lung Liu Associate Researcher NCHC, Taiwan.
Photonic Integration: A Key Enabler for Reconfigurable Digital Optical Networks Serge Melle VP, Technical Marketing Infinera
UCB Protection and Restoration in Optical Network Ling Huang
1 © 2003, Cisco Systems, Inc. All rights reserved. CCNA 3 v3.0 Module 4 Switching Concepts.
Chapter 4 Circuit-Switching Networks Multiplexing SONET.
OPTICAL COMMUNICATIONS & NETWORKING - AN OVERVIEW By: Mr. Gaurav Verma Asst. Prof. ECE NIEC.
Network Protection and Restoration Session 5 - Optical/IP Network OAM & Protection and Restoration Presented by: Malcolm Betts Date:
© 2017 SlidePlayer.com Inc. All rights reserved.