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1
State and future of optical transport networks
RoEduNet conference Cluj, 28th August 2008
Andreas Hegers
Director Solutions Architecture and Strategy
Metro Ethernet Networks
2
Agenda
• Market trends• Main Services and Bandwidth drivers• Technology trends• Key network requirements
• Ways to build a future-proof transmission network• DWDM transmission
• 10G - Still the baseline• 40G - The next big thing• 100G - On the horizon
• Networking flexibility• ROADMs - Photonic flexibility• OTN - The successor of SDH (?)• L2 - Embedded data capabilities• Control plane - Gluing it all together
• Network example RoEduNet
• Outlook and summary
3
Agenda
• Market trends• Main Services and Bandwidth drivers• Technology trends• Key network requirements
• Ways to build a future-proof transmission network• DWDM transmission
• 10G - Still the baseline• 40G - The next big thing• 100G - On the horizon
• Networking flexibility• ROADMs - Photonic flexibility• OTN - The successor of SDH (?)• L2 - Embedded data capabilities• Control plane - Gluing it all together
• Network example RoEduNet
• Outlook and summary
4
The Need for Speed
More than 70% of U.S. Internet users, streamedor downloaded Web videoin 2007.
YouTube today uses as much bandwidth as the entire Internet in 2000:• 200 Tbytes of traffic daily
We are in the middle of massive growth of networks where bandwidth requirements are exploding.
By 2010, 27% of Business access will require 100M - 10G Ethernet
10/100M 44% CAGR (07-10) 1G 36% CAGR (07-10) 10G 415% CAGR (07-10)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
2007 2008 2009 2010
EA
Ds
(M
illio
ns
)
10/100M
1G
10G
Source: Infonetics 2H 2007
Source: Infonetics & Nortel Analysis
Storage bandwidth growth:• 6,000,000 Terabytes 2008 -> > 16,000,000 Terabytes 2010
Gartner Group, Oct 2006
5
Impact on Transport
Gb
ps
Ro
ute
s in
Mill
ion
s(r
epre
sen
ts n
ew p
ort
s sh
ipp
ed)
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
Source: Infonetics, 2Q06 & Nortel internal 100G study
Terrestrial Gbps Routes
21.4%10.5%
5.4% 4.4%
10 Gbps
2.5 Gbps
40 Gbps
• Sum of capacities from various user groups builds need for 40Gb/s and eventually 100Gb/s links
• Video and voice services drive more stringent QoS expectations
• Optical (data center) services require multi-Gb/s over full time or on-demand connections
100 Gbps
6
BB Business Services Access
GbEStorage
Leased Lines
Business Services Access
Wireless Backhaul
Residential Services Access
Optical Modem: Fully Tuneable 10 40 100 Gbs Adaptive Distortion Mitigation (CD, PMD/PDL, Non-linearities)
Photonic domain control intelligence for fully
automated line control and simplified end to end
provisioning
WSS based ROADM for network agility, multi-way branching
Transport & Service Management
Converged L0/L1/L2 in single platform for fully flexible capacity allocation
Ethernet
PDH / SDH
IP -80
-70
-60
-50
-40
-30
-20
-10
0
10
20
1540 1542 1544 1546 1548 1550 1552 1554 1556 1558 1560 1562
Wavelength (nm)
Fibe
r O
utpu
t (dB
m)
15nm
PhotonicPhotonicDomain ControlDomain Control
NGMNGM
OEOOEO
NGMNGM
OEOOEO
NGMNGM
OEOOEO
NGMNGM
OEOOEO
PhotonicPhotonicDomain ControlDomain Control
NGMNGM
OEOOEO
NGMNGM
OEOOEO
NGMNGM
OEOOEO
NGMNGM
OEOOEO
Agile Packet Optical
Key Enabling Technologies – OpticalAccess Metro L H Core
7
Access Metro L H Core
BB Business Services Access
GbEStorage
Leased Lines
Carrier Ethernet
Business Services Access
Wireless Backhaul
Residential Services Access
PBB-TE (PBB-TE)Deterministic
Ethernet Circuits
PBB – secure, scalable clear demarcation between customer
and provider addressing
Transport & Service Management
GMPLS provisioning efficiencies
802.1ag and Y1731 carrier grade operations and
instrumentation
Ethernet with the Efficiencies of Packet and the Robustness of SDH
Agile Optical
Ethernet
PDH / SDH
IP
Ethernet
IP / MPLS
Key Enabling Technologies – Ethernet
8
Agenda
• Market trends• Main Services and Bandwidth drivers• Technology trends• Key network requirements
• Ways to build a future-proof transmission network• DWDM transmission
• 10G - Still the baseline• 40G - The next big thing• 100G - On the horizon
• Networking flexibility• ROADMs - Photonic flexibility• OTN - The successor of SDH (?)• L2 - Embedded data capabilities• Control plane - Gluing it all together
• Network example RoEduNet
• Outlook and summary
9
……
…
Electrical Signal Processing
Advanced FECAdvanced line and modem
Remove/Minimize DSCMs & Amps, Increase PMD Tolerance, Eliminate complex engineering rules (esp. OADM)Improved coding-gainSimple deployment & reconfiguration, reduced inventory & truck rolls
…
OEO
eROADM NodeTerminal Node AMP
Node
OADM NodeAMP Node
DSCM
……
Ter
min
al N
od
e C-Band
L-Band
Network Simplification Through Innovation
OEO
OEO
OEO OEO
OEOOEO
OEO
OEO
OEO
DSCM
DSCM DSCM DSCM
DSCM DSCM DSCM
DSCM
DSCM
OEO
OEO OEO
OEO
10
Wraptor FEC• 9.4dB of coding gain
• 3dB > RS-8
• Raman avoidance
10G eDCO • Electrical Tx based
dispersioncompensation
• Better than+/- 50,000ps/nm
• Real-timeFully automatic
20052003 Future2008
Embedding Transmission Complexity into Electronics
Advanced E/O Modem Introduction
10
11
Tx Rx
Tx Rx
1 spanDCF DCF DCF DCF
Conventional Optical Link with DCMs
Nortel’s Next Generation Optical Link with CPL and eDCO
DCF = Dispersion Compensating Fiber, packaged as a DCM
Optical Pulse Transmission with Electronic Dispersion Compensation (eDCO) on a 10 Gb/s link
Pre-Distorted, Eye Diagram Focused Eye Diagram(Zero Net Dispersion)
12
eDCO Dispersion Scan 20 spans - 1.600 km
22,00022,25022,50022,75023,00023,25023,50023,75024,00024,25024,50024,75025,00025,25025,50025,75026,00026,25026,50026,75027,000
Dispersion[ps/nm]
But what about 40G…?
13
Fiber parameters - Things to know
• The key fiber parameters to pay attention to are1. Attenuation:2. Chromatic Dispersion (CD):3. Polarisation Mode Dispersion (PMD):
For 40G, the limiting factor is mostly PMD
• Many carriers don‘t know the PMD values of their fiber, thus we have to stress the importance
• The older a fiber, the higher usually it‘s PMD. One bad part will spoil the complete link
• At 100G, the situation is much worse for all 3, so a future proof solution is key
14
• 4 times the baud rate of 10G TDM• Bit interval reduced from 100ps to 25ps
• Circuit implementation significantly more challenging also need more complex materials
• 4 times less light entering the receiver• 6dB drop in noise margin, may need RAMAN amplifiers
• Increase optical spectrum occupied by a factor of 4 (to ~ 6 RZ)• Increased system impact of optical filters (OADM/ROADM)
• 16 times less tolerant to chromatic dispersion• More stringent dispersion map• Increased installation difficulties, needs to be engineered day one• May need active CD compensators
• 4 times less tolerance to PMD • May need PMD compensators• May need to select/match fiber based upon vintage, installation, etc…
40 Gbps TDM – Challenges vs. 10 Gbps
40G/ transmission has Significant Optical Challenges
15
Wraptor FEC• 9.4dB of coding gain
• 3dB > RS-8
• Raman avoidance
10G eDCO • Electrical Tx based
dispersioncompensation
• Better than+/- 50,000ps/nm
• Real-timeFully automatic
eDC40• 2-Pol QPSK 40G
• 10Gbaud operation
• +/- 50,000 ps of CD compensation
• Electrical PMD mitigation
• 50GHz OADM compatible
20052003 Future2008
Embedding Transmission Complexity into Electronics
Advanced E/O Modem Introduction
15
16
• 40 Gbit/s on a single wavelength at 10 GBaud
• Using Quadrature Phase Shift Keying (QPSK) • 2 bits/symbol: X 2
• 2 QPSK signals, one per polarization • 2 orthogonal polarizations: X 2
• World’s first fully integrated 40G coherent digital receiver
• Propagates like a 10 Gbps signal
• For non-linear impairments, dispersion tolerance, PMD tolerance, etc…
• Uses 10G components: cost optimized, mature technologies with numerous vendors
• Fully leverages existing 10G Line Infrastructure
• Same Reach – No RAMAN or reduction to overcome increase in noise
• Same tolerance of cascaded ROADMs
• No Dispersion Compensation required
• Better PMD Performance than 10G systems
• All fiber that could be used for 10G can nowbe used for 40G Rx Data After DSPRx Data Before DSP
QPSK X - polarization
QPSK Y- polarization
(0,0)(0,1)
(1,0) (1,1)
Q
I
(0,0)(0,1)
(1,0) (1,1)
I
Q
Vertical Polarization
Horizontal Polarization
Dual Polarization
Dual Polarization
40 Gbps Dual Polarization QPSK
17
40 Gbps Dual Polarization QPSK
40GDual Polarization
QPSK
10GConventional
TDM
40GConventional
TDMFrequency
50 GHz
40G TDM Severely Impacted by Cascaded ROADMs
System Severely Limited at 50GHz-Spacing Carries Less Traffic
18
2-POL QPSK looks like the right solution
10G PSBT DPSK CS-RZ DQPSK 2-POL QPSK
Normalized Reach 1 .4 .8 .55 .65 1
CD Tolerance [pSec/nm] +/-400 +/- 400 +/- 400 +/- 400 +/- 400 +/- 50,000
PMD Tolerance [pSec] 15 3.5 3.5 3.5 8 25
Filter/OADM Tolerance [# of ADM traversed]
50GHz 12 3 3 N/A 8 >23
100GHz 12 8 8 8 >12 >23
40G Modulation SchemesPerformance Comparison
But what about 100G…?
19
Why 100G?
Customers want bigger pipes
20
100G - Things to know
• 100G is seen as the next big step for all vendors
• First deployments are expected around 2010 timeframe
• Given the lifetime of a transmission network, whatever is rolled out today should be 100G ready
• As the need for higher network capacities is there, a sit-and-wait strategy is no option
• Given the complexity of 100G transmission, only vendors with solid 40G knowledge & ASIC implementation have a realistic chance to get there in time
21
Wraptor FEC• 9.4dB of coding gain
• 3dB > RS-8
• Raman avoidance
10G eDCO • Electrical Tx based
dispersioncompensation
• Better than+/- 50,000ps/nm
• Real-timeFully automatic
eDC40• 2-Pol QPSK 40G
• 10Gbaud operation
• +/- 50,000 ps of CD compensation
• Electrical PMD mitigation
• 50GHz OADM compatible
20052003 Future2008
eDC100• 100G/
• Reach > 1000Km
• Electrical CD and PMD compensation
• 50GHz OADM compatible
Embedding Transmission Complexity into Electronics
Advanced E/O Modem Introduction
21
22
• ITU determining next rate of OTN (OTU-4) to accommodate 100GbE
• OTU-4 rates considered:• 3 X 40G -> 130 Gbit/s• 100 GbE -> 112 Gbit/s (most popular)• Decision on rate to be made end 2008
• Advanced modulation schemes consideredto support the new rates: • Dual Polarization (Dual Pol) or Polarization Multiplexed
QPSK, Duobinary, DQPSK, RZ-DQPSK.
• Dual Polarization QPSK• Only format capable of 50GHz spacing• Only format with 10G-equivalent PMD tolerance• Only format that could transport both OTU-4 rate proposals
Expect Other Vendors to Move to Dual Polarization QPSKas Industry Moving in this Direction for 100G
Expect Other Vendors to Move to Dual Polarization QPSKas Industry Moving in this Direction for 100G
100G Standards UpdateITU Study Group 15 Q6 Meeting – Oct 2007
23
100Gb/s Study Group Format Comparison
NRZ-DQPSK DP-QPSK RZ-DQPSK Duobinary
Bit Rate (Gbit/s) 112 130 112 130 112 130 112 130
Baud Rate [GBaud] 56 65 28 32.5 56 65 112 130
Support of 100GHz channel spacing
Yes Prob Not
Yes Yes Yes Maybe Maybe No
Support of 50GHz channel spacing
No No Yes Yes (sim)
No No No No
CD Tolerance for 2dB OSNR penalty (ps/nm)
+/-19 +/-14 18000 15000 +/-21 +/-15 +/- 23.5 +/-17.5
Max DGD tolerance for 1dB OSNR [ps]
6.1 5.3 27.0 23.0 7.3 6.3 2.7 2.3
OSNR tolerance for BER=1e-4
19.2 19.8 16.8 17.4 18.7 19.3 21.7 22.3
2dB bandwidth of flat top filter for 2dB OSNR penalty
+/-30.2 +/-35.2 +/-15.4 +/-18 +/-28.6 +/-33.3 +/- 35.9 +/-41.7
Only format capable of 50GHz spacingOnly format with 10G-equivalent PMD tolerance
Only format that could transport both OTU4 rate proposals
Only format capable of 50GHz spacingOnly format with 10G-equivalent PMD tolerance
Only format that could transport both OTU4 rate proposals
Nortel Confidential
24
OIF selects DP QPSK for 100G
25
Agenda
• Market trends• Main Services and Bandwidth drivers• Technology trends• Key network requirements
• Ways to build a future-proof transmission network• DWDM transmission
• 10G - Still the baseline• 40G - The next big thing• 100G - On the horizon
• Networking flexibility• ROADMs - Photonic flexibility• OTN - The successor of SDH (?)• L2 - Embedded data capabilities• Control plane - Gluing it all together
• Network example RoEduNet
• Outlook and summary
26
ROADMs and OTN
Electronic DispersionCompensation
Seamless 10/40/100G
The future proof transport network
Ingredients to Achieve All-Optical Agility
27
ROADM Applications and Drivers
> Traditional networks require manual patching as OADM and pass-through requirements change over time
> Line system optimization must be rebalanced with OADM reconfigurations
>Reconfigurable Optical ADM increases automation and reduces OEO costs• Remote re-configurability
• Automatic reconfiguration for nodal wavelength pass-through events – no manual patching required
• Optical branching• Router / DXC bypass
>Automated System optimization & power balancing• All VOAs are electronic• All power control done remotely • No manual equalization
ROADM
ROADM
ROADM
ROADMROADM
ROADM
Rebalance and optimize as wavelength
routing changes
Reconfigure with changing
traffic requirements
28
ROADM Architectures
2-Degree ROADM • Terminates wavelength services or passes
them transparently through in the optical domain (no transponders / regenerators)
• Connected to two fiber pairs (degree two)
Multi-degree ROADM • Connected to at least three fiber pairs• Can lead to cross connections restrictions or
scalability issues
Directionally Independent OADM• Guarantees non-blocking wavelength
switching between fiber pairs• Allows any wavelength to be re-routed to any
path on the network without manual intervention
Optical bypass traffic
Add/dropand regen
traffic
Optical bypass traffic
Optical bypass traffic
Add/drop and regen
traffic
DirectionallyIndependent
Add/Drop
Dir1
Dir2
DirN
WSS
- 2929
Starplane
http://www.starplane.org/
- 3030
DAS-3 Network Overview
University of Amsterdam (UvA)VLE (Virtual Laboratory
for E-science)
University ofAmsterdam (UvA)
Media lab
SURFnet CPL
LeidenUniversity (UL)
DelftUniversity (TUD)
AmsterdamFree University (VU)
City ring?
8*10G bandwidthBetween eachNode pair on CPL ring
Cluster with blade PCs
- 3131
Chosen Implementation
Sub network 1:Green
Hilversum1
Amsterdam2
Utrecht1
Rotterdam4
DenHaag
Delft1
Leiden1
Amsterdam1
- One band in SURFnet6 Ring 1 (Green ring) allocated to DAS-3
- Dynamic switching using WSS and OME
MLA
Gro
upm
ux MLA
Gro
upm
ux
WSSWSS
OME 6500broadband
But what about OTN…?
32
The idea behind OTN
> The G.709 frame structure was defined to provide OAM for monitoring end-to-end services and protection capabilities for optical services, i.e. wavelength services
> It supports the use of standard FEC and enhanced FEC when needed and inherently provides 3R functionality
> The frame structure was defined for 3 wavelength bit rate; 2.5 Gbit/s, 10 Gbit/s and 40 Gbit/s (to match with the SDH clients)
> Support of sub-wavelength services was not considered, as they could be provided by client layer networks SDH.
WDMSDH/PDH
ATM/FR MPLSIP
L1: OTNL2: EthernetL3: IP/MPLS
33
Reasons for the OTN Evolution
> 10GbE• Bit transparent transport of 10 GE (10GBase-R) requires an over-clocked ODU2. A
number of proprietary implementations provide the required transparency.
> Transparent transport 4 x 10 GE LAN over 40 Gbit/s • Requires a mapping into an over-clocked ODU2 and multiplexing of them into a new
over-clocked ODU3. One further new function is needed.• The clock tolerance of ± 100 ppm requires a new multiplexing method of ODU2e• The use of the standard multiplexing method requires a new bit-asynchronous mapping
of 10 GE
> 40 GE could be mapped into the standard ODU3 when transcoding is used.
> 100 GE over a single wavelength requires a new ODU4.
> SDH supports transparent transport of 1GE, but SDH will be switched off. Direct transport over the OTN requires a new sub-ODU1/ODU0.
> The OTN must be timing transparent for Ethernet CBR signals in order to support Synchronous Ethernet
34
OTN Extensions Agreements
OTU2
OTU1 ODU1
1x
ODU24x
16x
10x
ODU2x
4x
OTU4 H-ODU4
STM-256
40 GE
STM-64
10 GE
STM-16
1 GE
ODU3
ODU2
ODU0
OTU3 ODU3
100 GE
1x
1x
1x
1x
1x
classical OTU or ODU
100 Gbit/s
40 Gbit/s1x
1x
10 Gbit/s
CBR ClientsLower Order ODUOTUk/Higher Order ODU
2x
1x
2.5 Gbit/s
XXX
new agreed OTU or ODUXXX
new OTU, ODUnot yet agreedXXX
standardized mappingor multiplexingnew agreed mappingor multiplexing
1x
NEW
NEW
35
Outlook on OTN Extensions
OTU2
OTU1 ODU18x
1x
ODU24x
16x
10x
OTU2y
OTU3y
ODU2x
ODU3y
4x
1x
OTU4y H-ODU4
L-ODU4
STM-256
40 GE
STM-64
10 GE
STM-16
1 GE
ODU3
ODU2
ODU0
OTU3 ODU3
100 GE
1x
1x
1x
1x
1x
ODU2y
classical OTU or ODU
100 Gbit/s
40 Gbit/s1x
1x
1x
10 Gbit/s
CBR ClientsLower Order ODUOTUk/Higher Order ODU
2x
1x
2.5 Gbit/s
XXX
new agreed OTU or ODUXXX
new OTU, ODUnot yet agreedXXX
standardized mappingor multiplexingnew agreed mappingor multiplexingmapping or multiplexingnot yet agreed
36
Ingredients to Achieve All-Optical Agility
ROADMs and OTN
Electronic DispersionCompensation
Seamless 10/40/100G
L2 Awareness
The future proof transport network
3737
MSPP Network Applications
Broadband 40G
Photonic
MSPP
• Infrastructure (ROADM vs OMX)
• Ethernet Services Delivery
• Broadband Multiplexing• Ethernet Services Delivery
• SAN Extension• Broadband Multiplexing• Ethernet Services Delivery
Packet Optical Solutions are deployed in private builds, shared infrastructure and managed services solutions.
OperationsInterconnect
MultimediaCollaboration
Storage/ILM
Voice (VoIP)
3838
Network Applications - SAN Extension
OM5000 OM5000Transactions
performed locallyData stored /
backed up Remotely
Database /
Storage Array
Transaction
MetroNetwork
OME 6500
OME 6500
Transaction
Transaction
Transaction
OME 6500
Database /
Storage Array
Addresses SAN Extension with requirements of intermediate multiplexing of services
3939
Network Applications - Ethernet Services
MPLSCore
OME
OME
Metro/WAN
OME 6500N x 2.5G
Fiber
Copper
OC3/12/48
Fiber
OME 61x0
OM 3500
Copper/ fiber DWDM/ SONET/
Ethernet
Ethernet VPN solutions on any of the converged layers
40
Ingredients to Achieve All-Optical Agility
ROADMs and OTN
Electronic DispersionCompensation
Seamless 10/40/100G
Control Plane
L2 Awareness
The future proof transport network
41
Optical Network Automation Objectives
> Network Topology Discovery and Awareness
> Automated Service Activation• Can be “Client” or “Operator” driven
> OEO & OOO technology provides economical flexibility• OEO for Service adaptation, network adaptation and monitoring
• OOO for photonic flexibility / re-configurability
> Leads to Network protection / restoration
> Potential for IP / Optical inter-working via GMPLS signaling
Optical Layer
Optical Control Plane
42
Considerations when Control is Enabled
>Control Plane in an Optical Network enables:• Automated Automated service activationservice activation in optical layer in optical layer • Network awarenessNetwork awareness resource status and utilization resource status and utilization• Rapid identification / correlation of fault / resource / service Rapid identification / correlation of fault / resource / service • Optical Optical protectionprotection and and restorationrestoration• Ability to Ability to add a new wavelength automaticallyadd a new wavelength automatically without impacting existing network without impacting existing network
Optical Layer
Optical Control Plane
Understanding the viability of the end-to-end wavelength path is critical
43
Mesh Restoration
• Automatic Restoration recovers traffic following a path failure• For traffic not protected by the Transport Plane (e.g. 1+1)• For backup restoration (e.g. 1+1 secondary)
• Dynamic restoration scheme for best survivability and efficiency • Control plane learns location of failure in the signaling notification, computes next best route based
on feedback information and re-routes each connection• No pre-computed/pre-assigned restoration path/bandwidth for higher bandwidth efficiency. Mesh
Restoration will recover from multiple failures as long as b/w is available for restoration• Restoration performance is fundamentally unpredictable and non-deterministic, therefore restoration
times are typically slower i.e. in the range of secs• Example: For 1+1 Path Protection CoS, Automatic Restoration may be optionally used to
restore 1+1 path protection after initial failure• When a working connection fails, traffic is protection switched to protecting connection within 50ms
by Transport Plane. • CP then re-creates (restores) the failed working connection to return the CoS back to the 1+1 Path
Protected state.
Failure notification
I1S1 D1I2
P1 P2
44
Ingredients to Achieve All-Optical Agility
ROADMs and OTN
Electronic DispersionCompensation
Seamless 10/40/100G
Control Plane
L2 Awareness
The future proof transport network
45
Agenda
• Market trends• Main Services and Bandwidth drivers• Technology trends• Key network requirements
• Ways to build a future-proof transmission network• DWDM transmission
• 10G - Still the baseline• 40G - The next big thing• 100G - On the horizon
• Networking flexibility• ROADMs - Photonic flexibility• OTN - The successor of SDH (?)• L2 - Embedded data capabilities• Control plane - Gluing it all together
• Network example RoEduNet
• Outlook and summary
46
• 4.238,8 km fiber• 57 locations• 22 OME 6500• 18 ROADM sites
“…to offer the participants - universities, high schools, cultural, scientific and research nonprofit institutions - the means to communicate with each other…”
RoEduNet Next Generation Network
47
NETWORK DIAGRAM
BUCURESTI
TIMISOARA
SATU MARE BAIA MARE IASI
GALATI
BRAILA
CLUI NAPOCA
ORADEA
ARAD
CAREI
PLOIESTI
BUZAU
BACAU
PASCANISUCEAVAVATRA DORNEIILVA MICA
DEI
TG MURES
DEVA
ALBA IULIA
PETROSANI
TG JIU
CRAIOVA ROSIORI CIULNITA FETESTI
FAUREI
TECUCI
VASLUI
SAVARSIN
COPSA MICA
RUPEA
BRASOV
FOCSANI
CONSTANTA
JIBOU
TEIUS
BUC NAT
NOC
NOC
NOC
NOC
NOC
NOCCIUCA RAZBOIENI
MARGHITA
CHISINEU CRIS
SIBIU RM. VALCEA
CAINENI
PITESTI
TARGOVISTE
BUCURESTI
TIMISOARA
SATU MARE BAIA MARE IASI
GALATI
BRAILA
CLUI NAPOCA
ORADEA
ARAD
CAREI
BUZAU
BACAU
PASCANISUCEAVAVATRA DORNEI
DEI
TG MURES
DEVA
ALBA IULIA
PETROSANI
TG JIU
CRAIOVA ROSIORI CIULNITA FETESTI
FAUREI
TECUCI
VASLUI
SAVARSIN
COPSA MICA
RUPEA
BRASOV
FOCSANI
CONSTANTA
JIBOU
TEIUS
BUC NAT
NOC
NOC
NOC
NOC
NOC
NOC
TRAFFIC SITE
INTERMEDIATE SITE
RAZBOIENI
MARGHITA
CHISINEU CRIS
ILVA MICA
PLOIESTI
SIBIU RM. VALCEA
CAINENI
PITESTI
TARGOVISTE
CIUCA
BUCURESTI
TIMISOARA
SATU MARE BAIA MARE IASI
GALATI
BRAILA
CLUI NAPOCA
ORADEA
ARAD
CAREI
PLOIESTI
BUZAU
BACAU
PASCANISUCEAVAVATRA DORNEIILVA NUCA
DEI
TG MURES
DEVA
PETROSANI
TG JIU
CRAIOVA ROSIORI CIULNITA FETESTI
FAUREI
TECUCI
VASLUI
SAVARSIN
COPSA MICA
RUPEA
BRASOV
FOCSANI
CONSTANTA
JIBOU
TEIUS
BUC NAT
NOC
NOC
NOC
NOC
NOC
NOC
ROADM
SIBIU RM. VALCEA
CAINENI
PITESTI
TARGOVISTE
ALBA IULIA
WSS module
MARGHITA
CHISINEU CRIS
CIUCA
48… global platform with one software load… any card, any service, any chassis …
L2 Termination RPR L2SS for packet
aggregation Termination of
DS1/E1, DS3/E3 on L2SS for Off-net
MSPP SONET, SDH, J-SDH International
Gateway NextGen DCS LO and HO cross-
connects Full range of
transport services
5G TMUX
5G TMUX
STSMapping
& BP driver
VT X-Connect
OC-n Port Card
VTUBP
driverOptics
24 x DS3/EC-1 Port Card
DS3/EC-1
Term
BP
driverVTU
1
2
24
DS3Term
DS1Term
VTMapping
Transponders
2.5G to FC1200 Multiple
protection options
OTN-based transponders
Customer Network
OTSC
OTSC
1+1 Line
40/100G Adaptive Optical Engine
Innovative technology for simpler network deployments
Smooth migration 10 40 100G
>> 1000km reach without REGENs
No hard hats required
OME6500 Network ConvergenceVersatile L0/L1/L2 Convergence Platform
ROADM
network agility Single add and
drop granularity Restoration
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Optical Multiservice Edge family
OME 6500
OME 6500 Double Decker
OME 6110
OME 6130
OME6500 FamilySONET / SDH
ANDA
Demarc
OME 1110
OME 6150
OM 5065
SONET / SDH CPE
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To Add 40Gbps Wavelength:
50GHz System
ROADM ROADM
ROADMROADM
ROADM
Terminal
OME 6500
Terminal
OME 6500
1.
2.
3.
Insert eDC40 line and 40G client cards in each OME 6500 terminal shelf
Connect fiber from eDC40 card into existing long haul or metro line system
Connect client signal to 40G Client Card
Possible Network Migration to 40/100Gbps
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Agenda
• Market trends• Main Services and Bandwidth drivers• Technology trends• Key network requirements
• Ways to build a future-proof transmission network• DWDM transmission
• 10G - Still the baseline• 40G - The next big thing• 100G - On the horizon
• Networking flexibility• ROADMs - Photonic flexibility• OTN - The successor of SDH (?)• L2 - Embedded data capabilities• Control plane - Gluing it all together
• Network example RoEduNet
• Outlook and summary
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GMPLS for L2GMPLS for L2
OIF UNIOIF UNIMEF UNIMEF UNI
L3VPNL3VPN
ITU-T ITU-T interlayerinterlayer
ITU-T ITU-T interlayerinterlayer
GMPLS for L0/1GMPLS for L0/1 PCEPCE
ASON/GMPLS Architecture
Target Packet/Optical Network architecture
MPLS ServicesMPLS Services(RFC 2547 VPN, PWs etc.)(RFC 2547 VPN, PWs etc.)
Ethernet ServicesEthernet Services(E-LINE, E-TREE, E-LAN)(E-LINE, E-TREE, E-LAN)
PBB / PBT / PBB / PBT / PLSBPLSB
DWDM / OTNDWDM / OTN
TDM ServicesTDM Services(SDH, Sonet, PDH)(SDH, Sonet, PDH) Ethernet ServicesEthernet Services
(E-LINE, E-TREE, E-LAN)(E-LINE, E-TREE, E-LAN)
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Conclusion
• Bandwidth demand keeps on growing
• Network flexibility is key
• Optical transmission networks have to be ready for future upgrades to higher bitrates
• ROADM, OTN, embedded L2-features and control planes will lead to a new level of flexibility
RoEduNet’s Next Generation Optical Transport Network is the perfect base for current and future services