Carrier Perspectives on Moving Beyond 100G Martin … Perspectives on Moving Beyond 100G Martin...
Transcript of Carrier Perspectives on Moving Beyond 100G Martin … Perspectives on Moving Beyond 100G Martin...
Joint ITU-T/IEEE Workshop on The Future of Ethernet Transporton The Future of Ethernet Transport
(Geneva, 28 May 2010)
Carrier Perspectives on MovingBeyond 100G
Martin CarrollNetwork & TechnologyNetwork & Technology
Verizon
Geneva, 28 May 2010
Putting it into Context
http://xxx.yyy.zzz
IP End-to-End
End to End
ROADM
OTNSONET
Ethernet or MPLS-TPEnd-to-End Reliable Connectivity
Serving • 50M wireline customers in 24 states• 10M residential broadband; 3M FiOS TV customers (available to 11.7m)
92M i l t l t 3G t kResidential Enterprise Wireless
• 92M wireless customers; largest 3G network • 672K route miles of fiber globally; first commercial 100G deployment• 200 data centers in 22 countries; IP services in 2700 cities / 159 countries• Serve 98% of the Fortune 1000 customers; #1 provider to U.S. Government
Target Architecture
Control Plane
E Line
Local NodeT1
LH-OTPP-OTP
EVDOLTE
E-LineServices Router
Interconnect
EthernetServices
Local Node
ADMBEAS
P-OTP
P-OTP
DS3 OC-3
OC-121 GbE
10 OC-48/
P-OTP LH-OTPP-OTP
MPLS-TPSwitching
10 GbE OC-192 P-OTP P-OTP
WDM
O
LH-OTP
LH-OTPT110/100
EN BWOLTxPON
LH-OTPLH-OTP
ENGbE
Video
λ
BW Services
P-OTP: Packet Optical Transport Platform (ROADM + SONET + Ethernet)LH-OTP: Long Haul Optical Transport Platform (ROADM + OTN + MPLS-TP)
λServices
Transported ServicesTime Division Multiplexing (TDM)
DS-1/DS-3 OC-3/3c OC-12/12c Integrated Optical Service
PacketServices
OC-48/48c OC-192/192c
Ethernet10M Fast Ethernet100G
g p
Fast Ethernet50Mbps, 100Mbps
Gigabit Ethernet50Mbps, 100Mbps, 150Mbps, 300Mbps, 450Mbps, 600Mbps & 1000Mb
100G
10G
1GConverges
Packet, TDM, WavelengthTechnologies
Wavelength
1000Mbps10/40 Gigabit Ethernet
Ethernet Packet Ring Service10Mbps 100Mbps
100M
10M
1M
Technologies
Services
ODU-1, ODU-2, ODU-3, ODU-4DS-1
100Mbps 1,000Mbps
Storage1Gbps & 2Gbps Fiber Channel
Digital VideoDS-3
OC
TDM Services
Digital Video270Mbps SDI 1.485Gbps HD-SDI
OC-n
100G Field Trials
Video signal displayed at Miami
-10
0
sity
(dB
)
100G10G
Video signal fed to LambdaXtreme® at Tampa -40
-30
-20
186.5 187 187.5 188 188.5 189
Frequency (THz)
Rel
ativ
e In
tens
Nortel OME 6500 with 100G cards
Dallas Field Fiber Loop
Trial equipment in Lab 400, Richardson, TXPDP
MTS SR1 AF Shelf
MIB
32M
CU
OLI
INC
OLI
INC
PU
MP
A
PU
MP
A
PU
MP
BP
UM
PC
OSC
TUI
Cable compartment2xUDCM in tray
PU
MP
BP
UM
PC
MTS SR1 AF Shelf
MIB
32M
CU
OLI
INC
OLI
INC
PU
MP
A
PU
MP
A
PU
MP
BP
UM
PC
OSC
TUI
PUM
PB
PU
MP
C
PDP
MTS SR1 AF Shelf
MIB
32M
CU
OLI
INC
OLI
INC
PU
MP
A
PU
MP
A
PU
MP
BP
UM
PC
OSC
TUI
Cable compartment2xUDCM in tray
PU
MP
BP
UM
PC
MTS SR1 AF Shelf
MIB
32M
CU
OLI
INC
OLI
INC
PU
MP
A
PU
MP
A
PU
MP
BP
UM
PC
OSC
TUI
PUM
PB
PU
MP
C
Longview, TX
Marshall, TX
50 GH M50 GH D
10G test set
10G10G
100G Tx (PM-QPSK) 100G Rx (PM-QPSK)
Bay
Cable compartment2xUDCM in tray
Bay
Cable compartment2xUDCM in tray
Laser 1X
Y
QPSK mod.
QPSK mod.
Data processing
FEC
codingXQPSK moQP
50-GHz Mux
100G Tx
Laser 1
X
Y
90o
hybrid90o
hybrid
Filter
o/e A/ D
DS
P
Laser 2X
90o
hybrid90oFil C
dec
odin
g an
d at
a re
-alig
nmen
t
o/e A/ D
o/e A/ D
SP
50-GHz Demux
100G Rx
10G10G10G
40G40G
10G10G10G10G
Data generatorLaser
50GADC/data
storageSignal
processing(off-line)
X
Laser
X0
X90
Y90
Y0Y
π/2-
-π/2 -
-hiT 7500 system
10G40G40G10G
Laser 2
Y
mod.
QSK mod.40G (CP-QPSK) transmitter
10G (OOK) transmitter
Yrid90o
hybrid
ter FE daDS
o/e A/ D
40G (CP-QPSK) receiver10G (OOK) receiver
Verizon Business long-haul site at Longview, TX
Multi-Vendor 100G Trial
10GERouter 110GE 100G
Transponder100GE 112 Gb/s
10GERouter 110GE 100G
Transponder100GE 112 Gb/s
Router2
10GETester 100GE card
100GE card
CFP TxRx
CFP TxRx
10GE card
Transponder
CFPTxRx ROADM
80-kmDallasRing
Router2
10GETester 100GE card
100GE card
CFP TxRx
CFP TxRx
10GE card
Transponder
CFPTxRx ROADM
80-kmDallasRing
VideoDisplay
Video
VideoDecoder
2 10GE card
Video
GE
g
80-kmDallasRing
VideoDisplay
Video
VideoDecoder
2 10GE card
Video
GE
g
80-kmDallasRing
VideoEncoder
Videosignal
x9
VideoEncoder
Videosignal
x9
Router: Juniper T1600 router with 100GE cardsClient I/F: Finisar LR4 industry standard 100G CFPsTransport: NEC 100G transponders and ULH DWDM systemPhysical media: 1520Km of field deployed fiber in DFW metro areaPhysical media: 1520Km of field deployed fiber in DFW metro area Traffic verification: 10GE test set and High Def encoded video test traffic
100G Deployment
100Gb/s Live Frankfurt
Frankfurt
100Gb/s LiveParis to Frankfurt
893km route
Frankfurt
Alsbach Hartwald
KarlsruheBuhl
13 spansNo Regeneration
Operational
Strasbourg
Metz
KeskastelLine Amplifier
Skipped (Glass Thru)
WSS ROADM
Operational December 2009
Adding 100Gb/s
Metz
Saint Menehould
La Veuve
Fresnesen Woevre
Skipped (Glass-Thru)
Raman Link
g /routes in 2010 Sommesous
Troyes
ParisSoucy
Montereau
100Gb/s Roll-out Underway !!
Thirst for More
Unrelenting network traffic growth pressure bandwidth increases
Higher speed data services; symmetricalCommercial/residential video, HD/3D-TV, etc.Fixed/mobile convergence; service mobilityDistributed computing; SANSRoute/service diversityWireless backhaul~ 3G, 4G explosion
Demand for bundled services and access upgrades will trigger global FTTH/B subscriptions to reach 183.9 million by 2015 [Global Industry to reach 183.9 million by 2015 [Global Industry Analysts, Inc.]Forecast 10G/40G/100G port shipments together increasing 10-fold from 2009 to 2014 [Infonetics]increasing 10-fold from 2009 to 2014 [Infonetics]Carriers will look to higher speed options
Considerations
Higher rate needed in 2015/2016 timeframe to meet traffic projectionsp jLarge customer/carrier’s carrier services place additional requirementsMajor network changes will be required to j g qsupport rates over 100G
Incompatible with existing ROADMsMaximize new rate for demand window
Line side vs. client sideSame or different rate stepDistance requirements may not be the sameWeigh implications, cost, availability timeframes
Line Side Client Side
Bandwidth Scalability
Amplifier Increasing spectral efficiency Bandwidth
O,E,S,C,L
Increasing spectral efficiency is the logical first step because it can be applied to existing line systems
S t l
, , , ,Bands
C + L Bands
Adding amplifier bandwidth seems reasonable for next generation systems assuming Spectral
Efficiency
100 GHz
C Band
PM
generation systems assuming Raman amplification is needed anyway
PM
Ch l
NRZ DPSK50 GHz
PM QPSK Reducing channel spacing
appears to be the best long term avenue for scalability
h d
PMM-QAM
25 GHz
Channel Spacing
assuming coherent detection systems
Flexible Bandwidth Gridλ λs λλ λ λ λλ
Current generation WDM systems
…10 G
b/s λ
40 G
b/s λ
100
Gb/
s
10 G
b/s λ
40 G
b/s λ
40 G
b/s λ
40 G
b/s λ
40 G
b/s WDM systems
supported 10G, 40G and now 100G in service upgrades
1569.59 1568.77 1567.95 1531.12 1530.33 λ, nm
C‐band, fixed 50 GHz grid
1569.18 1568.36 1530.72
150GH
Future systems will be expected to support in service upgrades to at
Gb/
s λ
b/s λ
Gb/
s λ
Gb/
s λ
Gb/
s λ
50GHz 50GHz 75GHz 75GHz 150GHz least 1T / channel
Given the current view, more bandwidth is the
1569.59 1568.77 1567.95 1531.12 1530.33
…
λ, nm
E l f f t C b d 50 200 GH
1569.18 1568.36 1530.72
100
1 Tb
400
100
400
more bandwidth is the only way to achieve this w/o paying a significant reach penalty due to OSNR Example of a future C‐band, 50‐200 GHz
Flexible Grid (in 25 GHz increments)
penalty due to OSNR requirements
Flexible Layer 1 Network
A B150 GHz
Enables improved applicationsNetwork Defragmentation B d idth Adj t tBandwidth AdjustmentsNetwork Maintenance Network Restoration
C D E
100G 1T
G
50 GHz
T
Colorless/Directionless/Contentionless ROADM node with flexible gridColorless wavelength add/drop with directional routing
1001T
Colorless wavelength add/drop with directional routingChoose the bandwidth of the light path to match the service bitrateUse multiple copies of the same color wavelength on the add/drop structure
What’s Next?
1000
km)
son Optimistic
10
100di
stan
ce (P
b/s-
k
?
for c
ompa
ris
1
Tota
l cap
acity
-d
C-b
and
only
0.110 100 1000 10000
Data rate per channel (Gb/s)
T
Source: [1-10] Pessimistic
Homework for Industry
• 400Gb/s may not be the right answer…• Is 1Tb/s per channel an achievable target?• If so, what would be the best modulation format?Industry
Academia Government
If so, what would be the best modulation format?• Can DSP based coherent receivers continue to scale?• Would revisiting the ITU-T DWDM grid solve the problem?• Is spectral efficiency worth the complexity of variable width channels?
Summary
100G is a critical technology; beyond 100G will be required for transport scalability transport scalability
Flexible bandwidth grid architectures are required for upgradability
Colorless, directionless & contentionless are required for flexibility
TDM type connectivity is required for PL and EPL serviceability
d f dMPLS-TP is required for optimized router connectivity
Integration is required to improve cost and reliability
At the end of the day we need a cost effective solution that gives At the end of the day, we need a cost effective solution that gives us both scalability and backwards compatibility to some extent
Due diligence is needed ~ Think through all the implications before plotting a path to get thereThink through all the implications before plotting a path to get thereWe should not make decisions on what comes next until there is experience to be bored with 100G – or we may sell ourselves short
References1. D. G. Foursa et al, "2Tb/s (200x10Gb/s) Data Transmission over 7,300km Using
150km Spaced Repeaters Enabled by ROPA Technology," OFC/NFOEC 2007, PDP25.2. C. Laperle et al, "Wavelength Division Multiplexing (WDM) and Polarization Mode
Dispersion (PMD) Performance of a Coherent 40Gbit/s Dual-Polarization Quadrature Ph Shif K i (DP QPSK) T i " OFC/NFOEC 2007 PDP16 Phase Shift Keying (DP-QPSK) Transceiver," OFC/NFOEC 2007, PDP16.
3. M. Salsi et al, "155x100Gbit/s coherent PDM-QPSK transmission over 7,200kmALU 100G," ECOC 2009, PD2.5.
4. H. Masuda et al, "13.5-Tb/s (135 x 111-Gb/s/ch) No-Guard-Interval Coherent OFDM Transmission over 6,248 km Using SNR Maximized Second-Order DRA in the OFDM Transmission over 6,248 km Using SNR Maximized Second Order DRA in the Extended L-Band," OFC/NFOEC 2009, PDPB5.
5. S. L. Jansen et al, "10x121.9-Gb/s PDM-OFDM Transmission with 2-b/s/Hz Spectral Efficiency over 1,000 km of SSMF," OFC/NFOEC 2008, PDP2.
6. J. P. Turkiewicz et al, "Field trial of 160 Gbit/s OTDM add/drop node in a link 275 km deployed fiber " OFC 2004 PDP1km deployed fiber," OFC 2004, PDP1.
7. P. Guan et al, "Low-Penalty 5 320 Gb/s/Single-Channel WDM DPSK Transmission Over 525 km Using Time-Domain Optical Fourier Transformation," IEEE PTL, 21(21), 1579 (2009).
8. A.I. Siahlo et al, "640 Gb/s OTDM Transmission and Demultiplexing using a NOLM with Commercially Available Highly Non-linear Fiber," CLEO 2005, CTuO1.
9. Y. Ma et al, "1-Tb/s single-channel coherent optical OFDM transmission over 600-km SSMF fiber with subwavelength bandwidth access," Opt. Express 17, 9421-9427 (2009).
10 M Nakazawa et al "1 28 Tbit/s-70 km OTDM transmission using third- and fourth-10. M. Nakazawa et al, 1.28 Tbit/s-70 km OTDM transmission using third- and fourth-order simultaneous dispersion compensation with a phase modulator," Electronics Letters, 36(24), 2027-2029 (2000).