teknovus next generation access architecture ngaa
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8/4/2019 Teknovus Next Generation Access Architecture NGAA
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N ex t Gene ra t ion Ac cess A r ch it e c tu re (N GA 2)
-Evo lu t ion and Con vergence –
June 3 -4 , 200 9
NG N Fo rum , Ta i pe i
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EPON & E t he rne t E vo lu t ion – A S t anda rd Pe rsp e ct iv e
EPON Evo l ves to Becoming “Ca r r i e r G rade P2M P E the rne t “
Enterprise-grade
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End - t o -end E the rne t is t he Na tu r a l Evo lu t i onfo r a N ex t Gene ra t ion N e tw ork
OLT802.3x
Ethernet
Optical“Backplane” ONU
ONU
10/100/1,000 Mbps
10/100 Mbps
10/100/1,000 Mbps
Ethernet10/100/1,000/10,000 Mbps
Subscriber devicesare Ethernet-based
Application devicesare Ethernet-based EPON: Distributed Ethernet Switch
with an Optical Backplane
+ EPON (20M subscriber) maturity = interoperability, hundreds of 4th /5th-generation products, sophisticated traffic management capabilities
+ 10G EPON = backwards/forwards compatibility and next-generation
bandwidth handlingTeknovus Copyright 20093
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Acce ss Ne tw ork Today
Pa ra l le l A c ce ss Ne tw orks w i th La rge Me t r o Back bone
National IP Network
Metro Backbone
GE
AggregationSwitch
2 x GE
GE
GE
VODServ
er
TVHeade
nd
VOD
Control
3rd Party ISP
VODServ
er
VODServ
er
POP
B-RAS
Router
Internet
EPONEFM
EPON
100BaseFX
EPON
GEGE
GE
GE
Mobilebackhaul
with leaseline
Large Bizservice
FTTH/MDUResidential service
xDSLResidential service
FTTH/MDUResidential service
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EPON A c ces s Ne tw o r k Evo lu t ion – A Ne tw o r k Pe r spe ct iv e
EPON Evo l ve s to Becom ing “An U n i f ied Acce ss Techno logy “ &
Sm a l l er (o r d i sappea r i ng ) M e t ro Backbone
Edge Core
ProviderRouter
MPLS/IP
ProviderBSR/Edge
Router
OLT as Access Edge:• EPON aggregation
• Ethernet Switching and aggregation
High subscriber
density and service
diversity
High Switching
capacity and TM
capability
3/4G Node
DSLAM/MDU
SMB
SOHOFTTH
Large Biz
Medium Biz
1G/2GEPON
10GEPON
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Requ i r emen t an d Techno l og ie s f o r NGA 2
High port density, high split ratioStrong TM, MDU solution
10K to 60K(10X DSL)
10M to 100M(10X DSL)
10GEPONHigh switching capacity, Strong TM
Higher subscriber Density
Increased Subscriber BW
Radius 20km to 30km+(10X DSL) Extended or Long reachLarge Geographical Area
MEF 9/14/18 certificationEPL, EVPL, ELAN support,end-to-end Ethernet
Diverse Services / Ethernet
Frequency sync: +/-100ppb to +/- 50ppbPhase: +/- 5us to +/- 1.25us
1PPS, 8KHz, ToD transport overEPONPWE3 for TDM transport over EPON
Transport of Tight Timing
High reliability, Performance
and Fault management Protection switchingoptical monitoringCarrier Grade
per sub and per Mbpscost, network maintenanceand monitoring
Mature standard, mature IOP,strong Eco-system, EPON/GPONconvergence
Low OpEx and CapEx
No fork-lift upgrade,backward compatibility,strong technology roadmap
1G/2G/10GEPON and convergencewith XG-PON1
Investment Protection
Stringent SLArequirement and diversetypes of SLAs
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N G A 2 OLT capac i t y Requ i remen t and charac te r i s t ic s
7
OLT
Configurations
1G PON
ports
10GEPON
ports (100%
for MDU)
FTTH
(64)/MDU ratio
(256 for
1GEPON, 512
for 10GEPON)
Total subscribers Total Bandwidth to
the switching fabric
Total inputs to the
switching fabric
Configuration 1 96 0 10%/90% 22732 96GbpsX2 96
Configuration 2 64 16 20%/80% 22118 224GbpsX2 80
Configuration 3 32 32 40%/60% 22118 352GbpsX2 64
Configuration 4 0 48 0%/100% 24576 480GbpsX2 48
EPON significantly expand the
geographically coverageHigh sub density in domestic
cities
Increase the number of
subscribers served by OLT by atleast a factor of 10
Typical 2 to 4 10GE uplinks
Such OLT will have an
oversubscription ratio between 5:1
to 20:1
Such OLT must be TM enabled to
handle service flows and
subscriber pipes
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N G A 2 OLT capac i t y Requ i remen t and charac te r i s t ic s
8
ISP
NGA2 OLTMust process service flow
and subscriber pipe
ER/BRASMust process IPflow and policyenforcement
IP flow
(service
instances)
Service
flow(service
Classes)
Subscriber
pipe
OLT
Configurations
1G
PON
ports
10GEPON
ports
(100% for
MDU)
FTTH
(64)/MDU
ratio (256 for
1GEPON, 512
for 10GEPON)
Total
subscribers
Number of
queues
(4 queues per
subscriber)
Configuration 1 96 0 10%/90% 22732 90928
Configuration 2 64 16 20%/80% 22118 88472
Configuration 3 32 32 40%/60% 22118 88472
Configuration 4 0 48 0%/100% 24576 98304
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N G A 2 OLT As Tra ff ic M anagem en t Edge
Service Velocity000’s subscriber
pipes0,000’s service class
flows
Bandwidth Velocitysubscriber
densityper sub
bandwidth
TDM, Voice,Data
00’s Gbps 0’s Gbps
Residential
Business
Mobile
TDM, Voice,
Various Data
video, Voice,
H/L Data
ServiceDiversity
OLT as first bandwidth
congestion point
Must isolate and
protect each subscriber
and service class flow
with strong TM
Such scalability requires distributed TM
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N G A 2 O LT D e sig n P ar ad ig m - D u m b L C/ I n te ll ig en t S C
10
EPON
MAC
VLAN
Processing
Backplane IF
Backplane IF
TM
Uplink IFTMTM
TM
Switching
fabric
Data HDR
EPON Line Card (LC)
Switch and Uplink Card (SC)
200G to 1T switching
capacity80K to 100K queuesMassively parallel
header processing
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N G A 2 OL T De si gn P a rad igm – Du m b L C / I n t el li ge n t S C
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Chip Description Sample Switching
capacity
Sample Queuing capacity
24Gbps Ethernet Packet
processor
24Gbps
2X10G + 24 GEs
Limited
Bandwidth Management
engine
20G to 1.2Tbps Manages multiple Queuing
Engine chips
Queuing engine N/A Can manage up to 16K
queues
16 COS; up to 512MB buffer
Switching engine 40 by 40 cross
point switch
Integrated switching and
Traffic manager
20G Per flow queuing
Engineers800M
transistors
>100
DevelopmentInvestment
5Years
Patents
>40Processor20MPPS
128K queues
X = +
Use of off-shelf commercial
chipset1) Separate Queuing
Engine, BW manager,
Switch Fabric chips
2) Expensive solution
Use of in-house purpose built
ASIC
1) Not every company can build
this technically
2) Huge development effort
3) Very Expensive
Clearly neither
solution is ideal
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N G A 2 OLT De s ign Pa r ad igm - I n t e l l ig en t LC / Dum b SC
12
LUE and
Classificat
ion
EPON
MAC
QueuingTraffic
shaping/rate
limiting and
discardVLAN
Processing
Scheduling
Backplane IF
Backplane IF
Uplink IFSwitching
fabric
Data HDR
EPON Line Card (LC)
Switch and Uplink Card (SC)
200G to 1T switchingcapacity
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M app i ng Fun c t ion s in t o De si gn s – 3 Ch i p s
13
LUE and
Classificat
ion
EPON
MAC
Queuing
Traffic
shaping/rate
limiting and
discardVLAN
Processing
Scheduling
Backplane IF
Backplane IF
Data HDR
EPON Line Card (LC)
Packet Memory
Expensive
NP or FPGA
QE-2000
Off-shelf TM Chip
Off-shelf
802.3ah
EPON MAC
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M app i ng Fun c t ion s in t o De si gn s – 2 Ch i p s
14
LUE and
Classificat
ion
EPON
MAC
Queuing
Traffic
shaping/rate
limiting and
discardVLAN
Processing
Scheduling
Backplane IF
Backplane IF
Data HDR
EPON Line Card (LC)
Packet Memory
ExpensiveNP or FPGA
Off-shelf
802.3ah EPONMAC with TM
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M app i ng Fun c t ion s in t o De si gn s – 1 Ch i p
15
LUE and
Classificat
ion
EPON
MAC
Queuing
Traffic
shaping/rate
limiting and
discardVLAN
Processing
Scheduling
Backplane IF
Backplane IF
Data HDR
EPON Line Card (LC)
Packet Memory
Single chip – TK3723
Off-shelf 802.3ah EPON
MAC with TM & FlexibleVLAN Support
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xP ON Evo l u ti on : F r om F r agmen ta t i on t o Conve rgence
1.25 Gb/sEPON
ATM
BPON
2.5 Gb/s
EPON
2.5 Gb/s
GPON
10 Gb/sEPON
100% Ethernet
Seamless Migration
100% EthernetSeamless Migration
New Protocol -
Forklift Upgrade?
Or will there be another
Forklift upgrade
for 10G GPON ?
2.5G is a
Differentiator
Disruption of Services &Network Management.
802.3ah EPON
ITU-T GPON
X
X
622 Mb/s 1.25 Gb/s 2.5 Gb/s 10Gb/s
Speed
S u p p
o r t
f o r A d v a n c e d
S e r v i c e s
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EP O N M a tu r i t y- 1 0 G is 5 th-Gene ra t ion EPON
1st
(1Gbps w/ FE)
2nd
(1Gbps w/ GE)
4th
(incl.2.5Gbps)
5th
(10Gbps)EPON chipsetgenerations
3rd
EPON solutiongenerations
1st
(1Gbps w/ FE)
2nd
(1Gbps w/ GE)
4th
(incl.2.5Gbps)
5th
(10Gbp
3rd
2nd and 3rd generations were critical period
for: adapting to mass market deployment,
achieving cost reduction, interoperability,
and broad CPE type availability
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802.3ahstandard
completed
Commercialsystem
interoperabilityachieved
EPONcommercial
deployment
1M commercialsubscribers
10Mcommercial
subscribers
20Mcommercial
subscribers
200820072006200520042001 2009
IEEE 802.3ahstandardcommitteeformed
2003
Commercialchipset IOPachieved
EPON10Gstandardcomplete,compatible1G and 2G
10G
commercialdeployment(planned)
10G standardscommitteeformed
36 months
2010
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Tim e f o r Conve rgence ?
802.3ahstandard
completed
Commercialsystem
interoperabilityachieved
EPONcommercial
deployment
1M commercialsubscribers
10Mcommercial
subscribers
20Mcommercial
subscribers
200820072006200520042001 2009
IEEE 802.3ahstandardcommitteeformed
2003
Commercialchipset IOPachieved
FSAN ratificationof GPON
standard
GPON commercialdeployment
Commercialsystem IOP
(planned)
EPON10Gstandardcomplete,compatible1G and 2G
10G
commercialdeployment(planned)
10G standardscommitteeformed
36 months
ITU G984standard
completed
GPON
10G standardscommittee(tbd?)
36 months
18
2010
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19
Convergen ce - I TU P r opo sa l t o I EEE
Leverage maturityof 10G EPON
Standard
Convergence
would allow HWcompatibility with
existing,commercial EPON
deployments
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Conve rg ed EPON and GP ON a t 1 0G Speed
* Frank Effenberger, Huawei, Geneva, Joint ITU-T/IEEE Workshop, June, 2008
Conve rgence A l l ow s a s ing le so lu t ion fo r as ing le p rob lem
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Consolidated Volume, lower costSame PMD – Same OpticsSame PCS – Same SerDesHarmonized MAC – Same MAC
IC
Separate Management PlaneGPON OMCI can be tunneled inextensible EPON OAM
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Teknovu s K e y Ca rr ie r C la s s Te chno l ogy R oadmap
2008 2011
1/2009 1/2010 1/2011
•Traffic Management
•Optical Monitoring
•1PPS/8KHz/ToD
transport
Speed, Density, Capacity
C a r r i e r G r a d e
F e a t u r e s
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•Protection Switching
•MEF Compliance
•DOCSIS Over EPON
•802.1ag/Y.1731 Ethernet OAM
•MDU Solution
• 10GEPON
• High Density EPON
• 10GEPON and
XG-PON
Convergence*
* Currently being proposed by ITU-T SG15/Q2 and GPON Vendors. Teknovus is actively participating.
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Te k n ov us 1 G / 2 G / 1 0 G P r od u ct R oad m ap
TK4701 10G ONU
TK4702 10G ONU
TK3718 MDU ONU
TK3788 8x OLT
TK4721 10G OLT
TK3714 ONU
TK3715 ONU (China)
TK3723 2x OLT
3 Generations of Siliconin Production
Next Generation EPON Silicon
TK3713 ONU
TK3721 OLTTK3701 ONU
TK3717 ONU
TK3716 ONU
TK2701 Burst SerDes
2006 2007 2008
2009 & 2010
Optical LineTerminal (OLT)
ON U
ON U
ON U
EPON ODN
1G EPON 2.5G EPON
10G EPON
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Thank You
23 T k C i ht 2009