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Fujitsu Proprietary and Confidential All Rights Reserved, ©2006 Fujitsu Network Communications
Simplicity and Automation inReconfigurable Optical Networks
Dr. Tom McDermott
Director, CTO Office, Fujitsu
tom.mcdermott@us.fujitsu.com
Fujitsu Proprietary and Confidential All Rights Reserved, ©2006 Fujitsu Network Communications
Why Reconfigurable Optical Networks for Research and Education? Distance and capacity
10G circuits across regional distances 100Gb/s to Tb/s of capacity
Protocol transparency
Ethernet, SONET, Fiber Channel Protocols Lowest latency possible
Automation
Rapid circuit establishment and re-arrangement
University University
ResearchLaboratory
ResearchLaboratory
Radio AstronomyHigh Speed Grid Computing
Uncompressed HD Video
Antenna Site
Fujitsu Proprietary and Confidential All Rights Reserved, ©2006 Fujitsu Network Communications
Optical Networking Evolution
WDM WDM
ROADM
ROADM ROADM
ROADM
ROADM
ROADM ROADM
ROADM
WDM
ROADM
ROADM
ROADM
0-300km2.5G - 160G
0-600km10G-400G
0-1000km10G - 1.6T
Simplicity
Flexibility/DistanceCapacity
•Single Ring Topologies•Reconfigurable wavelength assignment
•Automatic power balancing•Operational ease equivalent to SONET ADMs
•Arbitrary topologies•Dynamic wavelength
assignment•Automatic power balancing
•Universal amplifiers•Tunable components
•xWDM access integration•Sub-wavelength integration
•Simpler than SONET Operations
•Point to Point topologies•Static wavelength assignment
•Manual power adjustments•Heavy operational burden
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Optical Hubbing: Dynamic Networking Across any Topology
Multiple, small rings Additional Fiber pairs required Costly OEO between rings Manual Fibering Between Rings Non-integrated spurs
Single growable structure Only 1 fiber pair between any
two sites No OEO between rings Automated connectivity between
rings Integrated spurs
2 pairs
ROADM
ROADM
ROADM
ROADM
ROADM
ROADM
ROADM
Two-degree nodes Mixed two degree and multi-degree nodes
1 pair
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Optical Hubbing – Dynamic Assignment vs. Manual Patching
Eliminates transponders Eliminates NE’s Single TID 10x reduction in fibering Automatic reconfiguration Fibering is independent of
Wavelength routing Wavelength assignment Wavelength quantity
Allows multiple network deployment scenarios
0
50
100
150
200
250
300
350
Number of
Fibers to
Interconnect
Rings
2 3 4Number of Rings per Hub Site
Optical Hubbing Reduces Fibering
Optical Hub
Back to Back
DWDMDWDM
DWDM
DWDM
Back to Back
Optical Hubbing
ROADM
•Fibering depends directly on wavelength assignment
•100’s of jumpers for a large system
•Fibering done day one.•Wavelengths assigned
dynamically•10’s of jumpers for a large
system
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Technology Breakthrough – Wavelength Selective Switch (WSS) Single, integrated device Replaces optical demultiplexer, multiplexer and optical switches Removes unnecessary loss on thru path -> more nodes, more reach,
more savings Any wavelength or any group of wavelengths to any/multiple ports Enables optical hubbing and arbitrary network topologies
DEMUXMUXSwitch
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Optical Fabric Technology Evolution
N port DWDM device Switches individual
Wavelengths between DWDM ports
Colorless operation Low through loss – large
networks, many nodes Can be mixed with 2-degree
fabrics on a network basis
2 port DWDM device Blocks individual wavelengths
on through path Other components perform
wavelength add/drop Used in Broadcast and Select
Architectures
1xN WSS1xN WSS1xN WSS1xN WSSWaveBlockerWaveBlockerWaveBlockerWaveBlocker
2 port DWDM + N wavelength port device
Switches individual wavelengths to single client ports
Low through loss – large networks, many nodes
Complex cascading required for multi-degree solutions
Integrated PLCIntegrated PLCIntegrated PLCIntegrated PLC
West East
2-degree solution 2-degree solution
West East West East
Client ports North SouthClient
Multi-degree solution
Waveblocker iPLC Wavelength Selective Switch
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Remote Touchless Service Activation – Revolutionizes Service Velocity
First-generation DWDM Multiple site visits Manual patching for through circuits Manual power balancing Limited service velocity
Touchless provisioning Site visits at service edge only Automated SONET & wavelength
provisioning Operational simplicity Quantum leap in service velocity
1
2
3 4
5
6
7
8
910
11
1
Site visits only for service card installation.
Fujitsu-pioneered technology
2ROADM ROADM ROADM
ROADM ROADM
“In one small region, we would have to do 30,000 individual fiber jobs without using ROADMs,” “…
transition to Ethernet becomes easier with a ROADM infrastructure because we can react
quickly.” G. Keith Cambron, SVP of AT&T labs at OFC 2006.
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Automatic Power Balancing
Maintains equal channel output power in face of wavelength assignment/rearrangement/network failure
Enables software provisionable wavelength add/drop/thru and reconfigure
No manual adjustments anywhere
All wavelength power levels equal
Fujitsupatentedtechnology
Fujitsu Technology
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Automating Control and Management
GMPLS enabled topology discovery Populates EMS database for assured inventory tracking Verifies fiber connectivity Craft user sees whole network easily
Circuit provisioning options Point and click from EMS Activated from EMS with explicit route – signaled using GMPLS Activated from EMS, computed route using GMPLS
Circuit tracking with GMPLS Network element layer understands end to end circuit view Simplifies troubleshooting and alarm correlation
ROADMROADMROADM
ROADM
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Summary
Optical Networking provides substantial value for R&E applications Transparency, distance, capacity, automation
Optical networking surpasses the simplicity of SONET networking Elimination of manual adjustments Zero-lambda turnup In-service wavelength additions to spans, rings In-service addition of nodes to rings In-service addition of rings and spurs to networks
Network automation uniquely enabled by Optical Hubbing Auto-adjusting amplifiers Tunable components GMPLS control plane and EMS
Fujitsu Proprietary and Confidential All Rights Reserved, ©2006 Fujitsu Network Communications
Fujitsu Proprietary and Confidential All Rights Reserved, ©2006 Fujitsu Network Communications
FLASHWAVE® 7500 ROADM One Platform - Three Powerful Configurations
FLASHWAVE 7500 core 40 channels WSS ROADM, 8-degree Hubbing Best-in-Class transmission performance
• <= 24 nodes, <= 1000 km ring size, without OEO
Active, non-banded Dynamic, self-tuning optical network Common Transponders and Software Perfect for metro & regional applications
FLASHWAVE 7500 small system 32 Channel FOADM and ROADM 19” shelf; 19” & 23” rack mounted option
• <= 16 nodes, 800km ring size without OEO
Active, non-banded, self-tuning Common Transponders and Software Compact, low cost Metro/Edge applications
FLASHWAVE 7500 extension system Lower-cost, smaller capacity FLASHWAVE 7500 Extension
• Perfect for Pt - Pt spurs or extensions• Combine with Passive Coupler and Amp where needed• Common Optical Line Cards (ie Transponders) and OLC shelf
Fully featured
Cost optimized
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FLASHWAVE® 7500 - Easy Operations Throughout Ownership Lifecycle
Design and engineering Engineer the network once! Grow subtended rings/arcs as
needed with no up-front investment or back-end penalty
No manual adjustments No hardware changeouts No wavelength restrictions
Installation and turn-up Cabling wizard Auto in-service plug-in units No manual attenuators to adjust Patented zero-lambda turn-up Auto provisioning of network-side
through paths and optical supervisory channel (OSC)
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FLASHWAVE® 7500 - Easy Operations Throughout Ownership Lifecycle
Provisioning and reconfiguration No readjustment of Patented, Self-
Tuning amplifiers. Add circuits like you do with
SONET Self-tuning amplifiers Add/remove lambdas with no power
balancing or truck rolls Add/remove nodes in-service Add rings/arcs to hub nodes in
service Telcordia™ flow-through NETSMART 1500 EMS point and
click A-Z provisioning GMPLS Control Plane Signaled
provisioning Full-band tunable transponders
allow wavelength selection after card installation