1 © Nokia Siemens Networks Document classification
Integrated Packet Optical Transport An Optimal Solution for Converging IP Networks
Shaheedul Huq
Solution Sales Manager
Optical Networks June 7, 2012
2 © Nokia Siemens Networks Document classification
Challenges in the marketplace
Challenging Business Model
Explosive Bandwidth Growth
1999 2002 2005 2008 2011 2014 2017 2021
180,000
100,000
20,000
17x Growth
2008-2020
+27% 2008-2020
CAGR
PB/Month
Source: Juniper, Cisco,
MINTS
Dynamic and Unpredictable applications
Non-scalable architecture
Cloud
IP Apps
Mobility
3 © Nokia Siemens Networks Document classification
Carriers are looking to:
• Increase speed and capacity
• Moving to 100G, thinking about 400G, 1T
• Reduce $/bit:
• CapEx:
• Price erosion
• Optimized architecture
• OpEx
• Simplify operation
• Converge & consolidate
• Improve competitiveness and customer experience
• Service provisioning
• QoS
• Service availability
• Evolution versus revolution
End user expectations
• Instantaneous response
• Minimum loading time
CSP’s are forced to improve network efficiency
New applications
• High bandwidth
• “Real –time”
• Interactive
• Cloud computing
Data Era changes traditional model
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Packets
Circuits
Optical
Transport
Today’s IP transport networks are complex, lack efficiency and scalability
Real Challenge: Scalability and Interworking within & between layers
Vendor E
Technology Z Vendor F
Technology M
Vendor D
Technology Y Vendor C
Technology X
Vendor A Vendor B
Vendor B
Technology Z
• Multiple layers
• Multiple technologies in Transport layer (SDH/SONET, CES, Metro D/CWDM, OTN, etc)
• Multiple vendors within these layers
• Multiple traffic planes within these vendor environments (Data, Control & Management)
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• Reducing SDH/SONET
• Moving to a converged IP/MPLS-
OTN/DWDM…
Moving to OADM, MSPP and reduction of
ATM
SDH/MSPP
OC-3/OC-48 OC-192 /
OC-768
ATM
P<->P DWDM OADM
IP
10G/40G/100G
OTN interfaces
Control
Plane
(GMPLS/
ASON)
10/40G
1995 -2000 2000 -2006 2005 -2008 2008 – 20xx
Operators want to simplify the network
Reducing layers
IP IP IP
DWDM/2D
ROADM
Multi-
Degree ROADM Switch
/ OXC
SDH/Sonet
IS POTN the ANSWER?
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The POTN World Layers (0,1,2,3) Must Converge and Cooperate
Optical switching multi-reach DWDM 10/40/100G CDC, flexi-grid
OTN switching for sub-lambda grooming, TDM and cheap grooming
IP over DWDM with colored interfaces, NMS, planning tool and control plane MPLS-TP switching for
IP transport packet connectivity fulfilling transport requirements
0 1
2
3
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P-OTS
Ethernet/ MPLS switch
ODU switch
10/40/100G DWDM
NMS
IP/MPLS router
10/40/100G DWDM NMS
IPoDWDM
How NSN sees the POTN world Main node architectures
POTN is a network either composed by P-OTS (Packet Optical Transport
Systems) or by routers with colored interface integrated to DWDM system
and NMS and control plane (IPoDWDM)
Coloured interfaces integrated into
IP/MPLS Router
Integration of router coloured interfaces into
DWDM planning tool
Multi-degree ROADM/PXC Pure Packet Switch
Fabric for MPLS-TP / Ethernet
ODUk switching with native TDM cross-connection
Multi-degree ROADM/PXC
Transport Network
Management System
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Packet-Transport integration simplifies the network and increases efficiency
• Reduced total cost
of ownership (TCO)
by 40-65% compared
to traditional
networks
• Increased efficiency
through Multi-Layer
Optimization
• Simplified
operation through
common OSS
and interworking
Control Planes
Virtual layers:
IP layer
OTN
switching layer
DWDM layer
Virtual layers:
IP layer
MPLS
switching
layer
DWDM layer
IP/MPLS over DWDM OTN over DWDM
IP/M
PL
S c
on
trol
pla
ne
GM
PL
S c
on
trol
pla
ne
IP Core router
Integrated OSS
MPLS Switch
OTN switch
10/40/100G Opt. Trans. & Switch
IP Edge router
Multi-layer Optimization
Integrated Data
plane
Integrated Control
plane (GMPLS)
Converged SuperCore
OSS
Integrated Packet Transport Network
9 © Nokia Siemens Networks Document classification
Optimization of DWDM Layer via OTN Aggregation
Network Topology
Physical Structure
•15 traffic nodes
•25 physical links
Traffic Volume
•Total Traffic Volume 2007: ~ 50 Tbps (CAGR of 50%)
•Total Traffic Volume 2011: > 300 Tbps
BE RAP
YVE ZH SGL
GE LS NIU
LZ
BEL LGV CR
WIN SAF WIL
BS
Node
Model electrical
grooming
optical
transport
ODU
grooming
IP Ethernet TDM
Source: Thomas Engel, Achim Autenrieth, Jean-Claude Bishoff, “Packet Layer Topologies of Cost Optimized Transport Networks”, ONDM, Braunschweig, Germany, Feb. 18-20, 2009
0
10
20
30
40
50
60
70
80
BE
-BS
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BE
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LZ
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LZ
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NIU
-SG
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P-Z
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F-W
IL
SA
F-W
IN
SG
L-W
IL
WIN
-ZH
node pair
wa
ve
len
gth
s
STM-64
STM-16
10GE->ODU-2
1GE->ODU-2
1GE->ODU-10
10
20
30
40
50
60
70
80
BE
-BS
-1
BE
-BS
-2
BE
-YV
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BE
-LS
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BS
-WIN
BS
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CR
-LG
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CR
-NIU
GE
-LS
GE
-YV
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LS
-YV
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LZ
-RA
P
LZ
-ZH
NIU
-RA
P
NIU
-SG
L
RA
P-Z
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SA
F-W
IL
SA
F-W
IN
SG
L-W
IL
WIN
-ZH
node pair
wa
ve
len
gth
s
STM-64
STM-16
10GE->ODU-2
1GE->ODU-2
1GE->ODU-1
40% reduction of wavelength usage by using intermediate
ODU level grooming Capex saving !!!
36.5 20.2
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0%
20%
40%
60%
80%
Router off-load factor (%)
CA
PE
X S
AV
ING
(%
)
2010 17% 15% 12% 17% 15% 12%
2011 22% 18% 15% 26% 36% 33%
2012 24% 35% 30% 32% 47% 50%
2013 24% 47% 46% 38% 52% 60%
2014 35% 44% 55% 38% 52% 61%
50% 70% 90% 50% 70% 90%
50% yearly capacity growth 100% yearly capacity growth
European customer example
• Yearly capacity growth: 50 and 100%
• IP Transit traffic off load factor: 50%, 70%, 90%
• Router pipe filling factor: 75%
• Cumulative CAPEX savings in 2014
•50% yoy capacity growth: 55%
•100% yoy capacity growth: 61%
IP core router tranist traffic off-load with P-OTN switch can result significant savings (*) !
• Electricity saving (OPEX)
• CO2 cumulative saving during 2010-2014 in European customer case can be up to 590 tons
• Footprint saving can help on site rental costs and delaying the needed site expansion investments
CAPEX SAVING OPEX SAVING FOOTPRINT
Core
router
IP off-load
with
MPLS-TP
Up to 80%
Off-load factor
Power / CO2
consumption
reduction
Up to 65%
Floor space
reduction
Up to 68%
Optimization of DWDM Layer via OTN & MPLS-TP Integration
(*) Depending of the final configuration
POTS Switching allows significant reduction of IP/MPLS network CAPEX and OPEX!
11 © Nokia Siemens Networks Document classification
Liquid Transport is about flexibility in optical IP networks
Intelligent Control
Services in seconds
MultiLayer
Optimization
360° network planning
Flexible Optics
Zero-constraint optical
networking
The right balance
between layers
The right mix of
packet and optical
Highest
capacity
Greatest
flexibility
Lowest
costs
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High-speed digital signal processing
• Enabling 40G, 100G, 400G, 1Tb, flexi-rate transponder
• Supporting passive optical distribution network
• Enabling >60Tb/s together with new fiber technologies
The basis for liquidity in optics are advances in technology
Photonic integration
• Key technology for reducing cost, footprint and power
• Si-photonics for integration of optical and electronic functionality
Advanced ROADM technologies & architectures
• Ensuring fast service availability, enabling network flexibility via CDC and Flexi-grid architectures
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MultiLayer Optimization
70% CAPEX savings
50% less power
consumption
Minimized Latency
Improved Scalability
Integration of optics and IP
Field-proven tools
Multi-vendor integration
consumption
MultiLayer Optimization
360° network planning
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Multi-Layer, multi-technology, multi-vendor, e2e:
• Optimization across layer 1 to 3
• Across all transport technologies: DWDM, OTN, ethernet, MPLS-TP, IP/MPLS, MWR, etc.
• Deliver the required functionaliy at the lowest possible layer
• The lower the layer the lower the cost of service delivery
Improved Efficiency Improved Scalability
Minimize TCO Network Optimization
IP Routers
OTN Ele
ctr
onic
O
ptical
Packet
switching
Circuit
switching
MPLS
OTN
WDM
Cost per bit / power consumption
Core router capacity (Tbps)
5 Tbps
10 Tbps
2015 2010 2020 2005
Max. single shelf router capacity
Required core router capacity
Multilayer optimization cost-efficient while capacity demands increase
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Intelligent Control
Intelligent control plane
Automated path provisioning
Cross-domain
Multi-vendor
Connectivity service
provisioning in near real-time
instead of hours or days
Intelligent Control
Services in seconds
16 © Nokia Siemens Networks Proprietary
Data Plane Integration Management Plane Integration
Multi-Layer Integration & Optimization
Control Plane Integration: IP/MPLS & GMPLS
A truly integrated packet transport network
• Robustness against multiple
failures
• Resilient IP capabilities: Improvement of
service quality, Reduction of
maintenance costs
• Dynamic E2E connection provisioning
Benefits
• Single OSS for network
provisioning and operation
• Connection provisioning
• Service Management
• Fault Management
• TransNet for optical
planning & automated
configuration
• Optical bypass &
electrical grooming
optimally planned
• Direct interconnection of router colored
OTN G.709 interface into optical
transmission
• Reducing in station connection, power
consumption & footprint
Resiliency
Automation
CAPEX
Risks
TCO OPEX
Complexity
17 © Nokia Siemens Networks Document classification
Nokia Siemens Networks Support both POTN node architectures
IP layer and
Electrical
switching
layer
DWDM layer
IP layer
Electrical
switching
layer
DWDM
layer
hiT 7300
TNMS
TransNet
Packet-Optical Transport System
Nokia Siemens Networks
hiT 7300
IPoDWDM
Juniper – Nokia Siemens Networks
hiT 7100 Switch/Router
TNMS
TransNet
18 © Nokia Siemens Networks Document classification
Thank You!