Transcript roadm - 7th RoEduNet International Conference

State and future of
optical transport networks
RoEduNet conference Cluj, 28th August 2008
Andreas Hegers
Director Solutions Architecture and Strategy
Metro Ethernet Networks
1
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
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
The Need for Speed
YouTube today uses as much
bandwidth as the entire
Internet in 2000:
• 200 Tbytes of traffic daily
By 2010, 27%
of Business
access will
require 100M 10G Ethernet
EADs (Millions)
3.0
2.5
2.0
1.5
More than 70% of U.S.
Internet users, streamed
or downloaded Web video
in 2007.
Source: Infonetics 2H 2007
10/100M
 44% CAGR (07-10)
10/100M
1G

36%
CAGR (07-10)
1G
10G  415% CAGR (07-10)
10G
1.0
Storage bandwidth growth:
• 6,000,000 Terabytes 2008 ->
> 16,000,000 Terabytes 2010
0.5
0.0
2007
2008
2009
2010
Gartner Group, Oct 2006
We are in the middle of massive growth of networks where bandwidth
requirements are exploding.
4
Source: Infonetics & Nortel Analysis
Gbps Routes in Millions
(represents new ports shipped)
Impact on Transport
Terrestrial Gbps Routes
21.4%
10.5%
100 Gbps
5.4%
4.4%
40 Gbps
• Video and voice services drive
more stringent QoS expectations
10 Gbps
2.5 Gbps
Source: Infonetics, 2Q06 & Nortel internal 100G study
5
• Sum of capacities from various
user groups builds need for 40Gb/s
and eventually 100Gb/s links
• Optical (data center) services
require multi-Gb/s over full time or
on-demand connections
Key Enabling Technologies – Optical
Access
Metro
Transport & Service Management
Business
Services Access
20
10
15nm
0
F ib e r O u tp u t (d B m )
Ethernet
PDH / SDH
IP
L H Core
Optical Modem: Fully Tuneable 10 40 100 Gbs
-1 0
-2 0
-3 0
-4 0
-5 0
-6 0
-7 0
-8 0
1540
1542
1544
1546
1548
1550
1552
1554
1556
1558
1560
1562
Wa v e le n g th (n m )
Adaptive Distortion Mitigation (CD, PMD/PDL, Non-linearities)
Residential
Services Access
Agile
Packet
Optical
WSS based ROADM
for l network agility,
multi-way branching
Wireless
Backhaul
GbE
Storage
Leased Lines
BB Business
Services Access
6
Photonic domain control
Converged L0/L1/L2
in single platform for fully
flexible capacity allocation
Photonic
Domain Control
OEO
OEO
NGM
NGM
OEO
OEO
NGM
NGM
intelligence for fully
automated line control and
simplified end to end
provisioning
Key Enabling Technologies – Ethernet
Access
Metro
Transport & Service Management
Business
Services Access
Ethernet
PDH / SDH
IP
L H Core
IP / MPLS
PBB-TE (PBB-TE)
Deterministic
Ethernet Circuits
GMPLS provisioning
efficiencies
Residential
Services Access
Carrier
Ethernet
Ethernet
802.1ag and Y1731 carrier
grade operations and
instrumentation
Agile
Optical
Wireless
Backhaul
GbE
Storage
Leased Lines
BB Business
Services Access
7
PBB – secure, scalable clear
demarcation between customer
and provider addressing
Ethernet with the Efficiencies of Packet and
the Robustness of SDH
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
8
Network Simplification Through
Innovation
Terminal Node
DSCM
DSCM
DSCM
C-Band
DSCM
DSCM
…
…
OEO
OEO
OEO
L-Band
DSCM
OEO
DSCM
AMP Node
DSCM
DSCM
DSCM
…
…
OEO
OEO
OEO
OEO
OEO
OADM Node
Electrical Signal Processing
Advanced FEC
Advanced line and modem
Terminal Node
OEO
9
OEO
OEO
…
…
OEO
AMP
Node
Remove/Minimize DSCMs & Amps, Increase PMD Tolerance,
Eliminate complex engineering rules (esp. OADM)
Improved coding-gain
Simple deployment & reconfiguration, reduced inventory &
truck rolls
eROADM Node
OEO
Advanced E/O Modem Introduction
10G eDCO
• Electrical Tx based
dispersion
compensation
Wraptor FEC
• 9.4dB of coding gain
• 3dB > RS-8
• Better than
+/- 50,000ps/nm
• Real-time
Fully automatic
• Raman avoidance
2003
2005
2008
Future
Embedding Transmission Complexity into Electronics
10
10
Optical Pulse Transmission with Electronic
Dispersion Compensation (eDCO) on a 10 Gb/s link
Conventional Optical Link with DCMs
Rx
Tx
1 span
DCF
DCF
DCF
DCF
DCF = Dispersion Compensating Fiber, packaged as a DCM
Nortel’s Next Generation Optical Link with CPL and eDCO
Tx
Pre-Distorted, Eye Diagram
11
Rx
Focused Eye Diagram
(Zero Net Dispersion)
eDCO Dispersion Scan
20 spans - 1.600 km
Dispersion
[ps/nm]
27,000
26,750
26,500
26,250
26,000
25,750
25,500
25,250
25,000
24,750
24,500
24,250
24,000
23,750
23,500
23,250
23,000
22,750
22,500
22,250
22,000
12
But what about 40G…?
Fiber parameters - Things to know
•
The key fiber parameters to pay attention to are
1. 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
13
40 Gbps TDM – Challenges vs. 10 Gbps
• 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…
40G/l transmission has Significant Optical Challenges
14
Advanced E/O Modem Introduction
eDC40
• 2-Pol QPSK 40G
Wraptor FEC
• 9.4dB of coding gain
• 3dB > RS-8
10G eDCO
• 10Gbaud operation
• Electrical Tx based
dispersion
compensation
• +/- 50,000 ps of CD
compensation
• Better than
+/- 50,000ps/nm
• Real-time
Fully automatic
• Electrical PMD
mitigation
• 50GHz OADM
compatible
• Raman avoidance
2003
15
15
2005
2008
Future
Embedding Transmission Complexity into Electronics
40 Gbps Dual Polarization QPSK
• 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
Dual Polarization
Vertical
Polarization
Horizontal
Polarization
Dual
Polarization
• Propagates like a 10 Gbps signal
• For non-linear impairments, dispersion tolerance, PMD
tolerance, etc…
QPSK X - polarization
(0,1)
• Uses 10G components: cost optimized,
mature technologies with numerous vendors
I
• Fully leverages existing 10G Line Infrastructure
• Same Reach – No RAMAN or l reduction to overcome
increase in noise
(1,0)
(0,1)
• No Dispersion Compensation required
16
(1,1)
QPSK Y- polarization
• Same tolerance of cascaded ROADMs
• Better PMD Performance than 10G systems
• All fiber that could be used for 10G can now
be used for 40G
Q (0,0)
Q (0,0)
I
(1,0)
Rx Data Before DSP
(1,1)
Rx Data After DSP
40 Gbps Dual Polarization QPSK
40G
Dual Polarization
QPSK
50 GHz
10G
Conventional
TDM
40G
Conventional
TDM
Frequency
40G TDM Severely Impacted by Cascaded ROADMs
System Severely Limited at 50GHz-Spacing  Carries Less Traffic
17
40G Modulation Schemes
Performance Comparison
Normalized Reach
CD Tolerance
[pSec/nm]
PSBT
DPSK
CS-RZ
DQPS
K
2-POL QPSK
1
.4
.8
.55
.65
1
+/-400
PMD Tolerance [pSec]
Filter/OADM Tolerance
[# of ADM traversed]
10G
+/- 400 +/- 400 +/- 400 +/- 400
15
3.5
3.5
3.5
8
25
50GHz
12
3
3
N/A
8
>23
100GHz
12
8
8
8
>12
>23
But what about 100G…?
2-POL QPSK looks like the right solution
18
+/- 50,000
Customers want bigger pipes
Why 100G?
19
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 sitand-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
20
Advanced E/O Modem Introduction
eDC100
• 100G/l
Wraptor FEC
• 9.4dB of coding gain
• 3dB > RS-8
eDC40
• Reach > 1000Km
• 2-Pol QPSK 40G
10G eDCO
• 10Gbaud operation
• Electrical CD and
PMD compensation
• Electrical Tx based
dispersion
compensation
• +/- 50,000 ps of CD
compensation
• 50GHz OADM
compatible
• Better than
+/- 50,000ps/nm
• Real-time
Fully automatic
• Electrical PMD
mitigation
• 50GHz OADM
compatible
• Raman avoidance
2003
2005
2008
Future
Embedding Transmission Complexity into Electronics
21
21
100G Standards Update
ITU Study Group 15 Q6 Meeting – Oct 2007
• 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 considered
to 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
22
Expect Other Vendors to Move to Dual Polarization QPSK
as Industry Moving in this Direction for 100G
100Gb/s Study Group Format Comparison
NRZ-DQPSK
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
Nortel Confidential
23
DP-QPSK
Only format capable of 50GHz spacing
Only format with 10G-equivalent PMD tolerance
Only format that could transport both OTU4 rate proposals
OIF selects DP QPSK for 100G
24
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
25
The future proof transport network
Ingredients to Achieve All-Optical Agility
ROADMs and OTN
Seamless 10/40/100G
Electronic Dispersion
Compensation
26


ROADM Applications and Drivers
> Traditional networks require
>Reconfigurable Optical ADM
manual patching as OADM and
increases automation and reduces
pass-through requirements change
OEO costs
over time
• Remote re-configurability
> Line system optimization must be
rebalanced with OADM
reconfigurations
• Optical branching
• Router / DXC bypass
ROADM
ROADM
>Automated System optimization &
power balancing
ROADM
Rebalance and
optimize as
wavelength
routing changes
• All VOAs are electronic
• All power control done remotely
• No manual equalization
Reconfigure
with changing
traffic
requirements
ROADM
ROADM
ROADM
27
• Automatic reconfiguration for nodal
wavelength pass-through events – no
manual patching required
ROADM Architectures
2-Degree ROADM
WSS
Optical bypass traffic
• 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
Add/drop
and regen
traffic
Optical bypass traffic
Add/drop
and regen
traffic
Dir2
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
28
Optical bypass
traffic
Dir1
Directionally
Independent
Add/Drop
DirN
Starplane
http://www.starplane.org/
29
- 29
DAS-3 Network Overview
University of
Amsterdam (UvA)
Media lab
University of Amsterdam (UvA)
VLE (Virtual Laboratory
for E-science)
Amsterdam
Free University (VU)
City ring?
Cluster with blade PCs
SURFnet CPL
8*10G bandwidth
Between each
Node pair on CPL ring
Leiden
University (UL)
Delft
University (TUD)
30
- 30
Chosen Implementation
- One band in SURFnet6 Ring 1
(Green ring) allocated to DAS-3
Amsterdam2 Amsterdam1
Leiden1
Hilversum1
Sub network 1:
Green
- Dynamic switching using WSS
and OME
Utrecht1
DenHaag
Groupmux
Groupmux
MLA
Delft1
MLA
Rotterdam4
WSS
WSS
OME 6500
broadband
31
But what about OTN…?
- 31
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.
IP
ATM/FR MPLS
SDH/PDH
WDM
32
L3: IP/MPLS
L2: Ethernet
L1: OTN
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
33
OTN Extensions Agreements
OTUk/
Higher Order ODU
NEW
OTU4
100 Gbit/s
Lower Order ODU
H-ODU4
CBR Clients
100 GE
1x
2x
40 Gbit/s
OTU3
1x
ODU3
ODU3
4x
10 Gbit/s
OTU1
1x
1x
STM-256
ODU2x
ODU2
1x
10 GE
1x
STM-64
ODU1
1x
STM-16
ODU0
1x
ODU2
1x
4x
2.5 Gbit/s
NEW
34
40 GE
10x
16x
OTU2
1x
1 GE
XXX
classical OTU or ODU
XXX
new agreed OTU
or ODU
XXX
new OTU, ODU
not yet agreed
standardized mapping
or multiplexing
new agreed mapping
or multiplexing
Outlook on OTN Extensions
OTUk/
Higher Order ODU
Lower Order ODU
L-ODU4
OTU4y
H-ODU4
100 Gbit/s
OTU3y
ODU3
ODU3
OTU2y
ODU2y
4x
OTU1
35
1x
1x
40 GE
1x
STM-256
ODU2x
ODU2
1x
10 GE
1x
STM-64
ODU1
1x
STM-16
ODU0
1x
10x
16x
10 Gbit/s
OTU2
100 GE
2x
ODU3y
1x
1x
1x
40 Gbit/s
OTU3
CBR Clients
ODU2
1x
2.5 Gbit/s
4x
8x
1 GE
XXX
classical OTU or ODU
XXX
new agreed OTU
or ODU
XXX
new OTU, ODU
not yet agreed
standardized mapping
or multiplexing
new agreed mapping
or multiplexing
mapping or multiplexing
not yet agreed
The future proof transport network
L2 Awareness
Ingredients to Achieve All-Optical Agility
ROADMs and OTN
Seamless 10/40/100G
Electronic Dispersion
Compensation
36



MSPP Network Applications
Multimedia
Collaboration
• Broadband Multiplexing
• Ethernet Services Delivery
MSPP
Voice (VoIP)
Storage/ILM
Broadband
Photonic
Operations
Interconnect
40G
• SAN Extension
• Broadband Multiplexing
• Ethernet Services Delivery
• Infrastructure (ROADM vs OMX)
• Ethernet Services Delivery
Packet Optical Solutions are deployed in private builds, shared
infrastructure and managed services solutions.
37
37
Network Applications - SAN Extension
Transaction
Transactions
performed locally
Metro
Network
OM5000
OM5000
Database /
Storage
Array
Data stored /
backed up
Remotely
Transaction
Transaction
OME
6500
OME
6500
OME
6500
Database /
Storage
Array
Transaction
Addresses SAN Extension with requirements of intermediate
multiplexing of services
38
38
Network Applications - Ethernet Services
OME
OME
Copper/ fiber
Fiber
Metro/WAN
Copper
OME 61x0
MPLS
Core
DWDM/ SONET/
Ethernet
OC3/12/48
OME 6500
OM 3500
Ethernet VPN solutions on any of the converged layers
39
39
The future proof transport network
Control Plane
L2 Awareness




Ingredients to Achieve All-Optical Agility
ROADMs and OTN
Seamless 10/40/100G
Electronic Dispersion
Compensation
40
Optical Network Automation Objectives
Optical Control Plane
Optical Layer
> 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
41
Considerations when Control is Enabled
Optical Control Plane
Optical Layer
>Control Plane in an Optical Network enables:
•
•
•
•
•
Automated service activation in optical layer
Network awareness resource status and utilization
Rapid identification / correlation of fault / resource / service
Optical protection and restoration
Ability to add a new wavelength automatically without impacting existing network
Understanding the viability of the end-to-end wavelength
path is critical
42
Mesh Restoration
S1
I1
Failure
notification
I2
P1
D1
P2
• 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.
43
The future proof transport network

Ingredients to Achieve All-Optical Agility




Control Plane
L2 Awareness
ROADMs and OTN
Seamless 10/40/100G
Electronic Dispersion
Compensation
44
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
45
RoEduNet Next Generation Network
• 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…”
46
CAREI
SATU MARE
BAIA MARE
ILVA NUCA
MICA
ILVA
VATRA DORNEI
PASCANI
SUCEAVA
IASI
NOC
MARGHITA
DEI
JIBOU
CIUCA
CIUCA
VASLUI
MURES
RAZBOIENI TGTG
MURES NOC
NOC
CLUI NAPOCA
BACAU
ORADEA
TECUCI
NOC
ALBA IULIA
ALBA IULIA
RUPEA
TEIUS
GALATI
TEIUS
CHISINEU CRIS
ALBA IULIA
SAVARSIN
NOC
TEIUS
COPSA MICA
FOCSANI
DEVA
DEVA
SIBIU
RM. VALCEA
ARAD
BRASOV
DEVA
CAINENI
BRAILA
BRASOV
PITESTI
NOC
TG JIU
PLOIESTI
PLOIESTI
FAUREI
TIMISOARA
TARGOVISTE
BUZAU
PETROSANI
NOC
ROADM
TRAFFIC SITE
NETWORK DIAGRAM
BUCURESTI
CRAIOVA
ROSIORI
CIULNITA
WSS
module
INTERMEDIATE
SITE
BUC
47
NAT
FETESTI
CONSTANTA
OME6500 Network Convergence
Versatile L0/L1/L2 Convergence Platform
L2 Termination
ROADM
 RPR
 L2SS for packet
aggregation
 Termination of
DS1/E1, DS3/E3 on
L2SS for Off-net
 l network agility
 Single l add and
drop granularity
 Restoration
40/100G Adaptive Optical Engine
 Innovative
technology for
simpler network
deployments
No hard hats
 Smooth migration
required
10  40  100G
>> 1000km reach without REGENs
MSPP
Transponders
 2.5G to FC1200
Customer
 Multiple
Network
protection
options
 OTN-based
transponders
 SONET, SDH, J-SDH
 International
Gateway
 NextGen DCS
 LO and HO crossconnects
 Full range of
transport services
VT X-Connect
OC-n Port Card
5G TMUX
BP
driver
VTU
Optics
5G TMUX
DS3
Term
OTSC
OTSC
1
+
1
L
i
n
e
STS
Mapping
DS1
VT
Term Mapping & BP
driver
24 x DS3/EC-1 Port Card
1
2
BP
driver
VTU
…
global platform with one software load… any card, any service, any chassis …
48
DS3/
EC-1
Term
24
Optical Multiservice Edge family
OME 6500 Double Decker
OME 6150
OME 6500
ANDA
OME 6110
OM 5065
OME 6130
OME 1110
Demarc
49
SONET / SDH CPE
SONET / SDH
OME6500 Family
Possible Network Migration to 40/100Gbps
ROADM
ROADM
ROADM
ROADM
Terminal
ROADM
Terminal
50GHz System
OME 6500
OME 6500
To Add 40Gbps Wavelength:
1. Insert eDC40 line and 40G client cards in each OME 6500 terminal shelf
2. Connect fiber from eDC40 card into existing long haul or metro line system
50
3. Connect client signal to 40G Client Card
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
51
Target Packet/Optical Network architecture
MPLS Services
Ethernet Services
(RFC 2547 VPN, PWs etc.)
(E-LINE, E-TREE, E-LAN)
PBB / PBT /
PLSB
L3VPN
MEF UNI
GMPLS for L2
ITU-T
interlayer
DWDM / OTN
OIF UNI
GMPLS for L0/1
ITU-T
interlayer
PCE
ASON/GMPLS Architecture
TDM Services
(SDH, Sonet, PDH)
Ethernet Services
(E-LINE, E-TREE, E-LAN)
52
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
53