carrier ethernet access technology shoot-out
TRANSCRIPT
1
Carrier Ethernet Access Technology Shoot-Out
Copper PDH vs. Active Fiber vs. PON
2
Dr. Michael RitterVice President Business Management
Ethernet Access
Wolfgang FischerSenior Manager, Business Development
Gerlinde BedöHead of Broadband Access Marketing
Panelists:
Ralph SantitoroChair, MEF Web Marketing Committee Director of Carrier Ethernet Solutions
3
Access Shoot Out Introduction
Panel Moderator:
Greg PoggiVice President of Sales
4
Carrier Ethernet in the Access, Metro & Global Networks
• Carrier Ethernet Services operate independently of the physical networks they run across making expansion to new technologies easy
• Creates a single service connection from Enterprise or business office, in a single person office, or home or on the road.
• In the Metro and First Mile, Ethernet is becoming the network of choice with migration from Frame Services
5
Ethernet over Different Access Network Technologies
EoC
oppe
r
10/100BT
PON
PO
N
Co
ax
WiFi /WiMax
GigE
ServiceProvider Network
(Hybrid of Ethernet and TDM)
HFC: Hybrid Fiber and Coax
10/100BT
GBE or 100FX(Standard or WDM)
GBE or 100FX(Standard or WDM)
EoPDH10/100BT
6
Carrier Ethernet Scope and Reach
SoHo & Residential Triple-PlaySmall/Medium BusinessEnterprise Clients Mobile data/video
HD TV, TVoD, VoD, Content Providers
VideoSource
Gaming, DR, ERP Voice/VideoTelephony
Internet information & Software apps
Host applications, Consolidated
Servers
Carrier Ethernet Carrier Ethernet wire-line and mobile backhaul
with copper, fiber , cable, wireless access network delivery
7
Carrier Ethernet in Access Networks
• Active areas in Carrier Ethernet development
– Ethernet Access for Mobile Backhaul
– Ethernet over Active Fiber
– Ethernet over Passive Fiber (PON)
– Ethernet over Copper PDH (E1/DS1)
– Ethernet over Copper DSL
– Ethernet over Hybrid Fiber Coax (HFC)
8
Converged Ethernet/IP Services over Copper PDH Access Networks
Ralph SantitoroChair, MEF Web Marketing Committee Director of Carrier Ethernet Solutions
9
Delivering Ubiquitous Ethernet Services- The Access Network Challenge
• Ethernet over Fiber (EoF) access networks– The optimal technology for delivery of Ethernet services
• Unfortunately, not all Enterprise sites have fiber accessHowever, they all have access to copper/PDH circuits
How does a service provider deliver How does a service provider deliver Ethernet services to all Enterprise locations?Ethernet services to all Enterprise locations?
FiberFiber
FiberFiber
Ethernet Ethernet Service Service ProviderProvider
10
What is Ethernet over PDH (EoPDH)?
• Technology that enables delivery of Ethernet services over PDH (E1/DS1, E3/DS3) access networks
• Service Bandwidth Granularity– N x 2Mbps (N bonded E1s), N x 1.5Mbps (N bonded DS1s)– N x 32Mbps (N bonded E3s), N x 45Mbps (N bonded DS3s)Example: 5 bonded E1s provide a 10Mbps Ethernet service
• Supports same MEF service attributes as EoF services– Ethernet UNI to subscriber– Granular bandwidth and QoS per service– Fault Management and Performance Management for SLAs
PDH (Plesiochronous Digital Hierarchy): Term to collectively refer to E1/E3 and DS1/DS3 copper access network circuits
EoPDH enables a common Ethernet service offering EoPDH enables a common Ethernet service offering and SLA over both copper and fiber access networksand SLA over both copper and fiber access networks
11
How does EoPDH work?
• Ethernet Frames enter UNI on EoPDH CLE and encapsulated in GFP• Access Network multiplexes E1s into channelized STM-1 circuits• E1s in STM-1 circuits terminated on EoPDH Aggregator
– GFP terminated, Ethernet frames reconstructed
• EoPDH Aggregator adds S-VLAN tag (QinQ) and passes Ethernet Service Frames to Ethernet Transport Network
Copper PDH Copper PDH Access NetworkAccess Network
EoPDHCLE
EoPDHAggregator
Ethernet Frame at UNI
ETHETH
IP
S-VLAN Tagged Ethernet Frame (EVC)
ETHETH
IP
Enterprise Enterprise SubscriberSubscriber
Ethernet Ethernet Transport Transport NetworkNetwork
Channelized STM-1
IPETHETHGFPGFP
Bonded E1s
IPETHETHGFPGFP
12
Ethernet L2 Services and Ethernet Access to IP Services over E1s PDH circuits: PMO
CE
Ethernetover E1s
Ethernet handoff to customer
Customer Premise
Ethernet Ethernet
Ethernet overE1s in Channelized
STM-1s
L2switch
PERouter
IP Service Edge
DCS
Ethernet over E1s in Channelized STM-1s
TDM
EoPDH CLE
PDH Aggregation
Router
SDHADM
Local Switching Office (LSO)
SD
H
SDHADM
PDH/SDHPDH/SDHAccess NetworkAccess Network
TDM PDH circuits from Customer Premise to IP Service EdgeTDM PDH circuits from Customer Premise to IP Service Edge
13
EoPDHEoPDHAggregatorAggregator
Ethernet
FMO Step 1 in Network Evolution to Carrier Ethernet
CE
Ethernetover E1s
Ethernet handoff to customer
Customer Premise
Ethernet overE1s in Channelized
STM-1s
Local Switching Office (LSO)
SD
H
EoPDH CLE
Ethernet Ethernet
L2switch
PERouter
IP Service Edge
DCS
Ethernet over E1s in Channelized STM-1s
PDH Aggregation
Router
Ethernet over SDH
Carrier E
thern
et
• EoPDH aggregator terminates PDH circuits and provides Ethernet to backhaul network resulting in improved bandwidth utilization
• DCS and PDH Aggregation Router eliminated at IP Service Edge since PDH circuits terminated at LSO
TDM
SDHADM
SDHADM
Ethernet
PERouter
IP Service Edge
L2switch
PDH/SDHPDH/SDHAccess NetworkAccess Network
14E
ther
net
FMO Step 2 in Network Evolution to Carrier Ethernet
CE
Ethernetover E1s
Ethernet handoff to customer
Customer Premise
Ethernet overE1s in Channelized
STM-1s
Local Switching Office (LSO)
EoPDH CLE C
arrier Eth
ernet
• SDH ADMs / Transport replaced by Ethernet Transport• Shortest possible Ethernet over E1 (PDH) loops• CLE at customer premise enables converged Ethernet and IP services
TDM
Ethernet
PERouter
IP Service Edge
L2switch
SD
H
Ethernet over SDH
SDHADM
SDHADM
Ethernet
EoPDHEoPDHAggregatorAggregator
ManagedManagedCLECLE
Converged Services• Ethernet L2 VPNs
• MEF E-Line, E-LAN• Internet Access• VoIP• IP VPN
PDH/SDHPDH/SDHAccess NetworkAccess Network
15
Ethernet over PDH Benefits
• Simplifies Enterprise subscriber’s WAN connectivity
– Provides “IT friendly” Ethernet (UNI) instead of E1 TDM circuit
• Simplifies Provider’s Access/Aggregation Network
– Terminates TDM PDH circuits as close to subscriber as possible
• “Media conversion” (EthernetTDMEthernet) performed between EoPDH CLE and Aggregation Device
– Improves backhaul bandwidth utilization
EoPDH enables ubiquitous, global Ethernet EoPDH enables ubiquitous, global Ethernet services over existing copper PDH access network services over existing copper PDH access network
facilitiesfacilities
17
A technology fairy tale
Once upon a time in the last century...- Fiber was expensive and had to be shared- Optical transceivers were expensive and had to be shared- Few 10s of Mbit/s were considered more than enough to satisfy
everybody’s bandwidth appetite ITU-T and IEEE developed various flavours of PON
In the world as we know it today...- Fiber is cheap- Optical transceivers for FE and GE are cheap- Typical access bitrates grow 50% YoY reaching
100Mbit/s before the end of this decade and 1Gbit/s before the end of the next decade
Compelling reason for PON?
18
What is Ethernet Point-to-Point?
• Direct star connectivity between POP and subscriber topology similar to telephone access network
• Using standard Ethernet technology (FE, GE, ...) over single strand of single-mode fiber
PE-AGGPE-AGG AccessSwitchAccessSwitch
N-PESTB
FTTx Access Network
E-FTTH
IP/MPLSEdge/core
Ethernet/MPLSAggregation
Network
19
Benefits of Ethernet point-to-point
• Simplicity• Virtually unlimited bitrate per subscriber• Fiber is neutral with respect to transmission
technology• Migration to higher speeds or new
technologies on a per-customer basis• Pay as you grow• Open Access to fiber inherently embedded
in the architecture
Flexible, Future Proof
20
What about fiber management / space?
• ODF for 2304 fiber terminations• Rack for 1502 active fiber
interfaces• 50% take rate• up to 100% take rate
achievable with second switch rack
Source: Huber & Suhner
21
What about OPEX?
Issue Point-to-Point PON
Resource planning in access / engineering rules
Simple: dedicated fiber Complex: shared medium, subscribers mutually dependent, # of customers on tree varies
Fiber troubleshooting Simple: failure uniquely located through reflection measurements
Complex: location of failure behind splitter difficult to identify
Encryption key management Not needed Required
Bandwidth / technology upgrade
Simple: can be done on a per-customer basis
Complex: replacement of all active equipment at once or wavelength overlay
Connecting a new subscriber Patch at ODF and config of switch, compensated by initial capex savings
Config of OLT
Outage after cable break Longer in the feeder part (more fibers to splice), shorter in the drop part (easier diagnostics)
Shorter in the feeder part (less fibers to splice), longer in the drop part (difficult diagnostics)
22
But I want to share fiber!
• Most natural way of sharing a fiber is in wavelength-domain
DWDM-PON– technology available– economically viable within 2 years
Ethernet Point-to-Point per wavelengthCombines best of both worlds
23
Ethernet over WDM-PON
Dr. Michael RitterVice President Business Management
Ethernet Access
24
WDM PON network architecture
FTTC
FTTC
FTTB
FTTH
VDSL
EthernetCentralOffice
1 . . . n
1
2
3
n
PassiveRemote
Node
25
Benefits of WDM PON technology
• Scalability through bitrate and protocol
independency
• Upgrade path on a per service level
• High degree of security and privacy
• Simple and straightforward network planning
• Geographical flexibility with long reach capability
• Architecture supporting open access networking
• Standard Ethernet technology and inter-working
26
WDM PON options
• Power splitters vs. filters in remote node
• Lambda grid options – DWDM, CWDM, …
• Bit rate per wavelength – 1G, 2G5, 4G3, 10G
• Colored or colorless ONU design
• Underlying TDM scheme for high fan out
• Protection options for highest availability
• Optional amplification for extended reach
27
activeEthernet
E/GPON
Optical access applications
all access technologies need efficient high-capacity backhaulall access technologies need efficient high-capacity backhaul
residential servicesaccess
business servicesaccess
infrastructurebackhaul
FTTC FTTBFTTH
opticalbackhaul
opticalbackhaul
activeEthernet
passiveWDM
FTTO FTTB
opticalbackhaul
FTTN
opticalbackhaul
28
Eliminating active equipment and freeing up real estate
CO
VDSL
DSLAM
LOCurbCP
passiveopticalsplitter
FTTC/VDSL25…50 Mbpsper user
FTTB/H GPON<100 Mbpsper user
FTTB Passive WDM 1++ Gbpsper user
aggregationswitch
aggregationswitch
aggregationswitch
aggregationswitch
opticaltransport
opticaltransport
opticaltransport
passiveWDM
OLT
29
Smart service termination
Application
Application
OJ - Loop
• Potential demarcation layers
– fiber availability
– optical performance
– coding integrity
– protocol statistics
– Ethernet virtual circuit statistics
• Loop: passive pilot tone
• Plug: active intelligent transceiver
• Device: active demarcation unit
OJ - Plug
Application
SFP SFP
OJ - Device
Optojack - loop, plug, device
SFP
SFP
SFP
30
Summary
• Simple, open and dedicated point-to-point
connectivity
• Efficient and future-proof transport architecture
optimized for access networks
• Utilized leading edge technology to reduce both
capital and operational cost
32
•“The results [of the research evaluating the sustainability and environmental impact of fiber networks] clearly demonstrate the overall service and environmental benefits of FTTH. The findings stand as testament that fiber is a sustainable and future-proof technology for the 21st century.”
•Joeri Van Bogaert, president FTTH Council, 2008
“Fiber right now is not just a means to get bits to the subscriber,it is also a potentially effective marketing tool.”
Telecom Strategy Partners, 2008
There is no doubt: World goes fiber
33
But which technology fulfills best all requirements?
GEP
ON
GPON
FTTC / VDSL
Active Ethernet
Fiber
– Which technology addresses better IPTV and VoIP? What about legacy & TDM?
– Bandwidth availability & flexibility, capacity upgrade possibilities
– Maintenance & fault isolation
– Interoperability & multi-vendor networks
– SLA assurance, service protection, and their associated costs
– How to maximize the use of existing infrastructure?
– The access network and future applications: network dimension & bandwidth simulation
34
PON is becoming a leading fibre technology
GPON will dominate in the US, since it is now certain to be used by both the major ILECs and many independent telcos. Active Ethernet has some limited support in the US, but it will remain a minority technology, taking declining share in the overall marketFTTH Worldwide technology update & market forecast
Because GE-PON is currently the technology of choice in Japan, it will dominate overall global FTTH deployments over next few years.FTTH Worldwide technology update & market forecast
35
All over the world operators go for PONPON subscribers will dominate ptp subscribers
Source: Broadbandtrends, 10/2007
Su
bsc
ribe
rs (
00
0)
-
10.000
20.000
30.000
40.000
50.000
60.000
2006 2007 2008 2009 2010 2011 2012
PONP2P
Worldwide fiber deployments
36
Carrier Network
What is PON?
• Created by the FSAN organization (driven by service providers & operators); Standardized by ITU-T (A/BPON, GPON) or IEEE (EPON)
• Bandwidth >100Mbit/s per subscriber through DBA• PON optimized for multicast and „downstream intensive“ traffic• Cost-optimized support of multiple (legacy and new) services through various subscriber
interfaces: VoIP (SIP, H.248), video (IPTV, cable TV), data• Support of all types on in-house cabling: copper TP, CAT5, fiber• Real multi-service platform: in the 1st mile and in the CO• Easy upgrade to more subscribers and higher bandwidth• Clear migration path to NG-PON• PON is a „green“ technology
Passive Optical splitter
1:16 Optical splitter
MetroMPLS / VPLS
TDM Network
FTTH
ONT SFU
FTTB
Multi-Dwelling Unit
Passive Optical splitter
2.5Gbps DS
1.25Gbps US
37
Node-B/BTS
E1/TDM
STM 1/4
Mobile core
SDH
TDMoIP
E1/TDM
PON is the ideal solution to backhaul mobile traffic
GPON is the ideal platform to backhaul mobile traffic (from 2G to LTE)
- Through built in synchronization capabilities in OLT- Support of all relevant BTS interfaces: E1, Ethernet- Sufficient bandwidth for LTE traffic
Ethernet
1/10 GE
RNC
38
The TCO advantage of GPON
Point-to-point Ethernet GPONRealistic deployment• 5000 subscribers
connected to CO• PON splitting ratio
1:32• Fibre terminations per
ODF rack: 1,440(10 shelves holding 144 fibres)
• Power consumption figures and ports per cage based on real product specs
Ethernet GPON
Power[kW]
CO Space[M2]
Patch cords
38
10
19.6
2.9
5000
157
x 3.6
x 6.7x 31.8
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
CiscoCatalyst 4510R
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
144 Fibers
39
Active Ethernet vs. GPON FTTx
Technical Requirement ETTx GPON Comments
Residential services handle VoIP/POTS, video, multicast
OAM tools
Bandwidth availability Both provide same possibilities
Bandwidth flexibility Important for business services
Support of existing infra. Including existing building infra.
QoS & SLA guarantee
Service protection Natural support of Ethernet rings
TDM and legacy support Ethernet support through CES
Cost
CapEx Integrated with Ethernet rings
OpEx
Total evaluation
40
Dr. Michael RitterVice President Business Management
Ethernet Access
Wolfgang FischerSenior Manager, Business Development
Q and A“Shootout”
Ralph SantitoroChair, MEF Web Marketing Committee Director of Carrier Ethernet Solutions
Greg PoggiVice President of Sales
Gerlinde BedöHead of Broadband Access Marketing