Integrated Packet Optical Transport An Optimal Solution for Converging IP Networks
Shaheedul Huq Solution Sales Manager Optical Networks June 7, 2012
Challenges in the marketplace PB/Month 180,000
Mobility
17x
100,000
Growth
+27% 2008-2020 CAGR
IP Apps
2008-2020
20,000
1999
Cloud
2002
2005
2008
2011
2014
2017
Source: Juniper, Cisco, MINTS
Explosive Bandwidth Growth
Challenging Business Model
2021
Dynamic and Unpredictable applications
Non-scalable architecture
CSP’s are forced to improve network efficiency Data Era changes traditional model
New applications
• • • •
High bandwidth “Real –time”
Interactive Cloud computing
End user expectations
• Instantaneous response • Minimum loading time
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
Today’s IP transport networks are complex, lack efficiency and scalability Vendor A
Packets
Circuits
Optical Transport
Vendor C Technology X
Vendor B Technology Z
Vendor B
Vendor D Technology Y Vendor E Technology Z
Vendor F Technology M
• 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)
Real Challenge: Scalability and Interworking within & between layers
Operators want to simplify the network Reducing layers
IP
IP
IP
OC-3/OC-48
IP
OC-192 / OC-768
ATM SDH/MSPP
10/40G
Control Plane (GMPLS/ ASON)
10G/40G/100G OTN interfaces
SDH/Sonet
P<->P DWDM
1995 -2000
OADM
2000 -2006
Moving to OADM, MSPP and reduction of ATM
DWDM/2D ROADM
2005 -2008
MultiDegree ROADM Switch / OXC
2008 – 20xx
• Reducing SDH/SONET • Moving to a converged IP/MPLSOTN/DWDM…
IS POTN the ANSWER?
The POTN World
Layers (0,1,2,3) Must Converge and Cooperate 0 Optical switching
multi-reach DWDM 10/40/100G CDC, flexigrid
1 OTN switching for
sub-lambda grooming, TDM and cheap grooming
IP over DWDM with
colored interfaces, NMS, planning tool and control plane
3
MPLS-TP switching for
IP transport packet connectivity fulfilling transport requirements
2
How NSN sees the POTN world
Main node architectures IPoDWDM Transport Network Management System
Coloured interfaces integrated into IP/MPLS Router Integration of router coloured interfaces into DWDM planning tool
P-OTS
IP/MPLS router
10/40/100G DWDM
Multi-degree ROADM/PXC
NMS
Ethernet/ MPLS switch
NMS
ODUk switching with native TDM cross-connection ODU switch
10/40/100G DWDM
Pure Packet Switch Fabric for MPLS-TP / Ethernet
Multi-degree ROADM/PXC
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)
Packet-Transport integration simplifies the network and increases efficiency OTN over DWDM
IP/MPLS over DWDM I P / M P p L l a S n e c o n t r o l
Virtual layers:
IP layer
MPLS switching layer
DWDM layer
Virtual layers:
IP layer G M OTN P switching layer p L l S a n c e o n DWDM layer t r o l
•
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
Integrated Packet Transport Network
OSSIntegrated OSS MPLS Switch IP Core router
Multi-layer Optimization Integrated Control plane (GMPLS)
IP Edge router 10/40/100G Opt. OTN Trans. & Switch switch
Integrated Data plane
Converged SuperCore
Optimization of DWDM Layer via OTN Aggregation
Node Model
IP
Ethernet TDM
electrical grooming
ODU grooming optical transport
80
BS
Network Topology Physical Structure
•15 traffic nodes •25 physical links
WIN SAF
YVE
GE
LS
ZH
BE
Traffic Volume
•Total Traffic Volume 2007: ~ 50 Tbps (CAGR of 50%) •Total Traffic Volume 2011: > 300 Tbps
LZ
BEL
RAP
LGV
WIL
SGL
NIU
CR
40% reduction of wavelength usage by using intermediate ODU level grooming Capex saving !!!
70 60
s h t 50 g n e 40 l e v a w30
36.5
20.2 STM-64 STM-16
20
10GE->ODU-2
10 0
1GE->ODU-2 1GE->ODU-1
U S E E P H P L H I L I L H 1 2 N H E V I N I - 2 - E 1 - Z H - V Z I L Z G Z L V V A Z G N - Z - W Z - A S S V S L - S G - V - - - Y R Y Y L L L - W - N - P W - W - S B - L E L - R - E - S - - R E Y - Z - E - B - E F L U I F L I B S L U A B B S E S Z R G E E I E E B A A G W B B B C C G L L B B E B B N N R S S S B node pair
U S E E P H P L H I L I L H 1 2 N H E V I N I - 2 - E 1 - Z H - V Z I L G Z Z L V V A Z G N - Z - W Z - A S S V S L - S G - V - - - Y R Y Y L L L - W - N - P W - W - S B - L E L - R - E - S - - R E Y - Z - E - B - E F L U I F L I B S L U A B B S E S Z R G E E I E E B A A G W B B B C C G L L B B E B B N N R S S S B node pair
Source: Thomas Engel, Achim Autenrieth, Jean-Claude Bishoff, “Packet Layer Topologies of Cost Optimized Transport Networks”, ONDM, Braunschweig, Germany, Feb. 18-20, 2009
Optimization of DWDM Layer via OTN & MPLS-TP Integration
CAPEX SAVING OPEX SAVING FOOTPRINT
) 80% % ( G N 60% I V A 40% S X E 20% P A C 0%
50% yearly capacity growth
100% yearly capacity growth
Up to 80%
Off-load factor
50%
70%
90%
50%
70%
90%
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%
Up to 65%
Up to 68%
Core router IP off-load with MPLS-TP
Power / CO2 consumption reduction
Floor space reduction
Router off-load factor (%)
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 (*) Depending of the final configuration
POTS Switching allows significant reduction of IP/MPLS network CAPEX and OPEX!
Liquid Transport is about flexibility in optical IP networks
Flexible Optics
Zero-constraint optical networking
The right balance between layers
MultiLayer Optimization 360° network planning
The right mix of packet and optical
Highest capacity
Intelligent Control
Services in seconds
Greatest flexibility
Lowest costs
The basis for liquidity in optics are advances in technology High-speed digital signal processing • Enabling 40G, 100G, 400G, 1Tb, flexirate transponder • Supporting passive optical distribution network • Enabling >60Tb/s together with new fiber technologies
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
MultiLayer Optimization
70% CAPEX savings Integration of optics and IP
MultiLayer Optimization 360° network planning 50% less power consumption
Field-proven tools
consumption Minimized Latency
Multi-vendor integration Improved Scalability
Multilayer optimization cost-efficient while capacity demands increase 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 Scalability
Improved Efficiency Network Optimization
Minimize TCO
Core router capacity (Tbps)
Cost per bit / power consumption c i n o r t c e l E
IP Routers
l a c i t p O
OTN
MPLS OTN
10 Tbps
Required core router capacity
Packet switching Circuit switching
5 Tbps Max. single shelf router capacity
WDM 2005
2010
2015
2020
Intelligent Control
Intelligent control plane
Intelligent Control
Services in seconds
Automated path provisioning Connectivity service provisioning in near real-time instead of hours or days Cross-domain
Multi-vendor
A truly integrated packet transport network Management Plane Integration
Data Plane Integration • Direct interconnection of router colored
• Single OSS for network
OTN G.709 interface into optical transmission • Reducing in station connection, power consumption & footprint
provisioning and operation • Connection provisioning • Service Management • Fault Management
Benefits TCO
OPEX Complexit y
Control Plane Integration: IP/MPLS & GMPLS
Resiliency
Risks Automatio n
CAPEX
Multi-Layer Integration & Optimization
• Robustness against multiple
• TransNet for optical
failures • Resilient IP capabilities: Improvement of service quality, Reduction of maintenance costs • Dynamic E2E connection provisioning
planning & automated configuration • Optical bypass & electrical grooming optimally planned
Nokia Siemens Networks
Support both POTN node architectures
IP layer and Electrical switching layer
IP layer Electrical switching layer
DWDM layer
DWDM layer
IPoDWDM Juniper – Nokia Siemens Networks
Packet-Optical Transport System Nokia Siemens Networks
Switch/Router
hiT 7300
hiT 7300
TNMS TransNet
TNMS TransNet
hiT 7100
Thank You!
