internet 3 optimizing optical networks with multi-haul networks
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Internet 3 Optimizing Optical Networks with Multi-Haul Networks. December 7 th , 2006 Roy Bowcutt. Roy Bowcutt. Outline. Traditional WDM systems and real networks Technology applied in real networks Optimizing networks with multi-haul designs - PowerPoint PPT PresentationTRANSCRIPT
Internet 3Optimizing Optical Networks
with Multi-Haul Networks
December 7th, 2006
Roy Bowcutt
Roy Bowcutt
© 2006 ADVA Optical Networking. All rights reserved.2
Outline
Traditional WDM systems and real networksTraditional WDM systems and real networks
Technology applied in real networksTechnology applied in real networks
Optimizing networks with multi-haul designsOptimizing networks with multi-haul designs
Intelligent Integration using an intelligent control planeIntelligent Integration using an intelligent control plane
© 2006 ADVA Optical Networking. All rights reserved.3
Traditional Network Segmentation
Networking Solutions Optimized for Each Segment (Access, Metro, Regional, and Long Haul)
Technologies Targeted for One or Two Networking Segments
Network Management Systems, Provisioning Operations, and Organizational Structures built around Segmented Networks
© 2006 ADVA Optical Networking. All rights reserved.4
20 20 10G + 2.5G 10G + 2.5G 40 40 10G (2.5G) 10G (2.5G)
+80 +80 10G 10G+40 +40 40G 40G
CapacityCapacity
<8 <8 2.5G 2.5G
DistanceDistance
<100 km <100 km
<800 km <800 km >800 km>800 km
<400 km <400 km
CostCost
$ $ $$$$
$$$$$$ $$$$$$$$$$
AccessAccessMetropolitanMetropolitan
RegionalRegional Long HaulLong Haul
WDM systems are typically WDM systems are typically optimized for a given applicationoptimized for a given application
Increased Increased Network CostNetwork Cost
WDM Network Categories
© 2006 ADVA Optical Networking. All rights reserved.5
Management Systems and Organizational Management Systems and Organizational Structures Developed and Organized for Structures Developed and Organized for
Networking SegmentsNetworking Segments
AccessAccessMetroMetro
RegionalRegionalLong HaulLong Haul
WDM Network Segmentation
© 2006 ADVA Optical Networking. All rights reserved.6
76
6
4
5
4
5
4
3
44
5
5
2
6
7
The number of channels (10G and 2.5G) on each optical span at initial turn-up is indicated by the number that is circled.
9
3
42
2
7
9
8
7
6
6
7
8
8
7
8
11
1210
11
To North Rings
To South Rings
• New Jersey – Maryland Network• In-service 2003• 88 Network Elements• Supports 40 per fiber• 10G & 2.5G
Many Networks do not fall in any single category
Increased Network Cost
Real Networks
© 2006 ADVA Optical Networking. All rights reserved.7
Access Metro Regional Long Haul
Transmitters
Amplifiers
Capacity
SwitchingROADM
DML2.5G
2.5GCWDM MZ-EML
10GEAML10G
EAML2.5G
40G
NoAmp
EDFA
Dual Stage EDFA
Raman
HybridRaman/EDFA
8 20
40
80
TerminalNode
OADM ROADM
Multi-DegreeROADM
Technology Application Segmentation
© 2006 ADVA Optical Networking. All rights reserved.8
Amplifier options• No amplifier• Single-pump EDFA• Dual-pump EDFA• Dual-pump EDFA with mid-stage access• Variable Gain EDFA• Distributed Raman• Hybrid Raman+EDFA
DCM Rx/Tx
Pre-amp
DCM
Post-amp(r)OADM
Modular WDM - Amplifiers
© 2006 ADVA Optical Networking. All rights reserved.9
Transponder options• External ITU-T , any rate • CWDM 2.5G• DML DWDM 2.5G• EAML 2.5G• MZI 2.5G• EAML 2.5G FEC• EAML 10G FEC• MZI 10G FEC & duobinary
DCM Rx/Tx
(r)OADMPre-amp
DCM
Post-amp
Modular WDM - Transponders
© 2006 ADVA Optical Networking. All rights reserved.10
OADM options• None (line-amp node) • 4 and 8 CWDM mux/demux• single- DWDM filters• 20 mux/demux• 40 mux/demux• broadcast-and-select (2-degree) ROADM• multi-degree ROADM
DCM Rx/Tx
(r)OADMPre-amp
DCM
Post-amp
Modular WDM – (r)OADM
© 2006 ADVA Optical Networking. All rights reserved.11
EDFA Power Ripple
Input to first post-amp Output of last pre-amp
• 6 spans x 100 km SMF 9 EDFA + 4 OADM
• Low power ripple – no need for channel equalizer
< 5 dB power ripple
© 2006 ADVA Optical Networking. All rights reserved.12
16 loops0 loops
1535 nm 16 loops1541 nm 16 loops
ROADM for Power Equalization • Recirculating loop with
2-deg. ROADM
• <5 dB power ripple after 16 ROADM
• Open eye diagrams for 10G EAML
© 2006 ADVA Optical Networking. All rights reserved.13
Long-Haul All-Optical Transmission
• Field trial 10 spans x 160 km SMF with no OEO regen
• EAML, NRZ 10G XPDR’s with hybrid Raman/EDFA
• No per-wavelength power equalization along the link
12
14
16
18
20
22
24
26
28
1525 1530 1535 1540 1545 1550 1555 1560
Wavelength [nm]
OSNR [dB]
Span 1
Span 10
1.00E-07
1.00E-06
1.00E-05
1.00E-04
1.00E-03
1.00E-02
13 14 15 16 17 18 19
OSNR (dB)
BER XPDR1XPDR2
Error Free with EFEC turned ON
EFEC BER threshold
© 2006 ADVA Optical Networking. All rights reserved.14
Support multiple WDM platforms
Service providers High Op.Ex.
Use modular WDM system adapting to all networks requirements
• Protocols
• Data rates
• Number of channels
• Span distances
• Total distances
• Fiber types
• Add/drop capacity and reconfigurability
• Protection options
Multi-haul WDM System
© 2006 ADVA Optical Networking. All rights reserved.15
RR
Hybrid Raman/EDFAHybrid Raman/EDFA2-stage EDFA2-stage EDFA
OADMOADM
2-deg. ROADM2-deg. ROADM
>1000 km>1000 km
RamanRaman1-stage EDFA1-stage EDFA
2.5G DML2.5G DML
2.5G 2.5G EAMLEAML
10G EAML10G EAML
10G MZI10G MZI
40G40G
Multi-deg. ROADMMulti-deg. ROADM
CWDMCWDM
R
R
R
Multi-haul WDM Network
© 2006 ADVA Optical Networking. All rights reserved.16
0%
20%
40%
60%
80%
100%
120%
Relative Cost
40
20
Multi-deg. ROADM
2-degree ROADM
Fixed OADM
Mixed (r)OADM
Network Cost Comparison
© 2006 ADVA Optical Networking. All rights reserved.17
RR
>1000 km>1000 km
2.5G DML2.5G DML
2.5G 2.5G EAMLEAML
10G EAML10G EAML
10G MZI10G MZI
40G40GCWDMCWDM
R
Tying Network Tools Together
• Provisioning Simplification • Network utilization• Multiple provisioning systems• Automatic network inventory (discovery)• Embedded service awareness
© 2006 ADVA Optical Networking. All rights reserved.18
Metro Core
Metro Edge
Metro Access
Customers
Intelligent Control Plane
Point and click provisioning Network agility Enhanced revenue capabilityIntegrated management
Expedited Provisioning
Interoperability New types of services New architectural and operations models
Network Evolution
Reduces Operational Expenditures andIncreases Service Delivery
Higher asset utilizationAutomated network inventory and reuseEfficient restoration
Network Efficiency
© 2006 ADVA Optical Networking. All rights reserved.19
Summary – Multi-haul DWDM
Mix different XPDRs, Amplifiers, OADMs, etc on the Mix different XPDRs, Amplifiers, OADMs, etc on the same optical pathsame optical path
Use the lowest-cost (but still reliable) alternative to Use the lowest-cost (but still reliable) alternative to meet network requirementsmeet network requirements
Cost and performance optimization performed with Cost and performance optimization performed with automated control plane technologyautomated control plane technology
© 2006 ADVA Optical Networking. All rights reserved.21
About the Author
Roy Bowcutt is Senior Director of Product Management at ADVA Optical Networking. of Product Management at Movaz Networks. Roy is experienced in the engineering and market development of telecommunications, cable video transmission, and data networking industries. Prior to ADVA, Roy was the Vice President of Product Management at Movaz Networks. Prior to joining Movaz, he worked in various engineering and management positions at Scientific Atlanta and IBM. Roy holds a BS in Electrical and Computer Engineering from Brigham Young University, a Masters in Electrical Engineering from the University of Minnesota, and an MBA from Emory University.