carrier ethernet access: extending ethernet into the first mile
DESCRIPTION
Carrier Ethernet Access: Extending Ethernet into the First Mile. July 2007. Carrier Ethernet Access. Carrier Ethernet Access Standards and Migration Carrier Ethernet Access Expansion Expanding Ethernet to Copper, PDH, HFC Cable and Wireless Access Networks Applications for Ethernet Access - PowerPoint PPT PresentationTRANSCRIPT
1
Carrier Ethernet Access: Extending Ethernet into the First Mile
July 2007
2
Carrier Ethernet Access
• Carrier Ethernet Access• Standards and Migration • Carrier Ethernet Access Expansion
– Expanding Ethernet to Copper, PDH, HFC Cable and Wireless Access Networks
• Applications for Ethernet Access• Advantages of Extending Metro Ethernet
connections with Ethernet in the First Mile• Recent Projects and Developments
3
The Access Challenge
• There are no bandwidth constraints in the LAN– 100 x increase in bandwidth
• There are very limited bandwidth bottlenecks in the WAN/Internet core– 1000 x increase in bandwidth
• The challenge still remains in the metro and access– 16 x increase in bandwidth
Long-haul ISP Point of Presence
EthernetMANASP,
ContentDistribution
Site
Large EnterpriseSite
SmallEnterpriseSite
L2 VLAN
Internet Access
VirtualCo-location
Optical WANTransport
4
U.S. Mid-Band Ethernet Carrier Revenue$8.8B/yr Addressable Market
$-
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
AT&T Verizon BellSouth Qwest Other
$M
Drivers for Ethernet Access
• Very large unaddressed market– Fiber is only available to 11.7% of businesses
– growing at a very slow rate– $8.8B/year in service revenues
• Technology is mature– Standards are ratified with large global
deployments
• Ethernet is the choice– No future protocols on the horizon
• Business case works!– Payback in months, with ~80% Carrier GM– True for Incumbent Carrier, Independent Carrier, 2nd
Operator & CLEC
Cumulative Cash Flow by Month
$(5,000,000)
$-
$5,000,000
$10,000,000
$15,000,000
0 1 2 3 4 5 6 7 8 9 10 11 12Month
10Mbps
7Mbps
5Mbps
2Mbps
Footprint
Vertical Systems Group
5
Increasing Bandwidth for New Services
• Providers are meeting subscriber demand for more bandwidth with Carrier Ethernet Services– MEF E-Line Services
provide attractive leased line upgrade
• Less OPEX means more margin per line
– Ethernet Backhaul enables next generation applications and services
• 3G Cellular
• DVBH video phones
Mid-Band Ethernet Ports (2 -20M Copper)High Speed Ethernet Ports (>10M Fiber)Mid-Band Ethernet Ports (2 -20M Copper)High Speed Ethernet Ports (>10M Fiber)
U.S. Business Ethernet Service PortsMarket Opportunity by Segment
2009 20102005 2006 2007 20082004
700,000
600,000
400,000
200,000
100,000
0
500,000
300,000
2011
Eth
ern
et P
ort
s
Mid-Band Ethernet Ports (2 -20M Copper)High Speed Ethernet Ports (>10M Fiber)Mid-Band Ethernet Ports (2 -20M Copper)High Speed Ethernet Ports (>10M Fiber)
U.S. Business Ethernet Service PortsMarket Opportunity by Segment
2009 20102005 2006 2007 20082004
700,000
600,000
400,000
200,000
100,000
0
500,000
300,000
2011
Eth
ern
et P
ort
s
Vertical Systems Group 2006
6
Carrier Ethernet Access:
Ubiquitous Carrier Ethernet
• Enables widest availability for business Carrier Ethernet Services that extends beyond 1-10GBE Enterprise networks delivered via copper, fiber, coax and wireless technologies
• Creates an end-to-end Ethernet service both business and residential users
• Improved QoS for next generation IPTV, VoIP and data for residential users
• Creates standardized service opportunities world-wide for any type of subscriber
• Enables Ethernet services to be delivered across 100% of a carrier’s combined, business, information, and entertainment service portfolio
7
CopperCopper
Legacy to Leading EdgeMigrating from TDM to Ethernet Access
Carrier Ethernet NetworkE-Line and ELAN business services
Ethernet LAN Ethernet LANManaged Switch/Router
GB Man/WAN Router
IP Network
Managed Switch/Router
GB Man/WAN Router
CopperLocal Loop
Routers CSU/DSUs RoutersCSU/DSUs
CopperCopperCopper
Local Loop
Ethernet LANEthernet LAN
Traditional Telco NetworkVoice Oriented Connectivity
ATM Switch
ATM Switch
MUX MUX
Telco Central Office
ATM Sonet/SDHATM
8
Most efficient access for Ethernet
IP
Ethernet AAL5
ATM
Ethernet
PHY PHY
ATM
PPP
xDSL,PPP, GFP
xDSL,PPP, GFP
SONET/SDH
SONET/SDH
ATM
AAL5
PPP
IP
ATM,Framerelay,etc.
PHY
Cat5 Copper Fiber
Ethernet
PHY PHY
Ethernet
xDSL,PPP, GFP
xDSL,PPP, GFP PHY PHY
Ethernet
IP
ATM, FR,etc.
PHY
Cat5 Copper Fiber
Ethernet
IP
Ethernet minimizes protocol translations
9
Wireless Backhaul
Carrier Ethernet Scope and Expansion
Voice gateway
Voice/VideoTelephony
HD TVTVoD, VoD
Gaming, BusinessBackup, ERP
E-Line andE-LAN service
ResidentialTriple-Play
FTTx and DSLAM , Cable Modem
Broadbandmobile data/video
VideoSource
VideoSourc
e
Bringing vastly extended scalability for business and residential users
BusinessBroadband
Small/Medium Business
Carrier Ethernet Network
10
Carrier Ethernet Access Standards
10GbE
10BASE-T(Cu Cat5)
MaximumBandwidth (Symmetric)
100m 500m 750m 2000m 2700m 5000m 10km 20km
2Mbps
10Mbps
100Mbps
1Gbps
10Gbps
100BASE-T(Cu Cat 5)
1000BASE-T(MMF) 1000BASE-LX (SMF)
ExistingIEEE 802.3standards
ExistingIEEE 802.3standards
Ethernet overCopper
Ethernet overCopper
Minimum Reach
Ethernet over Copper
• EoPDH provides up to 12/16Mbps over any T1/E1 distance and 45/32Mbps over any T3/E3 distance• VDSL2 can provide 100 Mbps (per pair) in short distances 10 Mbps (per pair) in medium distances
and 2 Mbps in long distances
100Base-L/BX10(Single Mode Fiber)
1000BaseB/L/PX10
1000Base-PX20EoPDHEoPDH
RFC 3518 RFC 3518 or G.8040 or G.8040 12/16Mbps 12/16Mbps over T1/E1over T1/E1
EoPDHEoPDH45/32Mbps 45/32Mbps over T3/E3over T3/E316Mbps
45Mbps
ExistingExistingIETF and ITU-TIETF and ITU-T
standardsstandards
ExistingExistingIETF and ITU-TIETF and ITU-T
standardsstandards
11
Ethernet Access over Copper
• ITU standard for Ethernet in the first mile include multiple PHY options to provide a ubiquitous service footprint
• Hybrid copper and fiber deployments provide a seamless end-to-end Ethernet access for Ethernet Metro core networks– Fiber to the node, copper from the curb
InternetMetro Core
EFM Access
Triple play
ExtendedRange
12
Ethernet over PDH
13
What is Ethernet over PDH (EoPDH) ?
• PDH (Plesiochronous Digital Hierarchy)– Term to collectively refer to T1/E1 and T3/E3 circuits
• EoPDH enables Ethernet and IP services to be delivered over PDH access networks
• Two ‘competing’ technologies to deliver EoPDH– MLPPP/BCP over PDH (RFC1990 / RFC3518)
• for encapsulation, bonding and bridging– GFP over PDH (G.8040)
• GFP (G.7040) for encapsulation, • VCAT (G.7041) and LCAS (G.7042) for bonding
• EoPDH Equipment support– MLPPP/BCP supported on essentially all routers and new service edge
aggregation devices– GFP supported on new types of devices
• Service Bandwidth Options – Up to 12Mbps (8 bonded T1s)– Up to 16Mbps (8 bonded E1s)– Up to 32Mbps (1 E3)– Up to 45Mbps (1 T3)
14
Why Ethernet over PDH ?
• Enables multiple revenue generating services over a single Ethernet UNI– E.g., Internet access, managed VoIP, Ethernet Access to managed IP VPN, E-Line
and E-LAN L2 VPNs• Works over existing copper PDH access networks with no speed or
distance limitations• Provides Ethernet UNI handoff to subscriber• Utilizes T1s, E1s, T3 or E3
– T1s are the most widely deployed access network technology for businesses data networking in North America
• Enables next generation Radio Access Networks from cell sites to interface to existing microwave radio equipment and PDH backhaul circuits
• Addresses underserved sub-10Mbps Business Ethernet services market only addressable via copper access networks
– $5B cumulative service revenue between 2006-2010*– Less than 14% of U.S. commercial buildings have access to fiber*
• Fits within service provider’s existing network infrastructure– Service providers have offered T1 Internet Access for businesses for years
• Still a significantly growing business– EoPDH requires no significant network operation or infrastructure changes
* Vertical Systems Group
15
How does it work?
• Ethernet Frames enter EoPDH Customer Located Equipment (CLE) and encapsulated– Into MLPPP or GFP for transport over PDH network
• LEC/PTT network multiplexes T1s/E1s into channelized DS3 or E3 circuits• Channelized DS3/E3 circuits terminated on EoPDH edge aggregation device
– T1s/E1s extracted from channelized DS3/E3 circuits– MLPPP or GFP terminated and Ethernet Frame Extracted
• Each subscribers’ Ethernet frames mapped to S-VLANs (EVC)– To preserve subscriber’s C-VLAN IDs and 802.1p CoS
• S-VLAN-tagged Ethernet frame (EVC) to Ethernet Transport Network– Providing transport for EVPL, E-LAN or access to IP services, e.g., Internet access
Bonded T1s/E1s
LEC/PTTLEC/PTT
EthernetFrame
IPETH
MLPPPor GFP
Channelized DS3/E3
EoPDHEoPDHCLECLE
ETH
EoPDHEoPDHAggregatorAggregator
Ethernet Ethernet Transport Transport NetworkNetwork
Enterprise Enterprise or Cell Siteor Cell Site
Subscriber EthernetFrame in S-VLAN / EVC
Enables multiple revenue generating services over same PDH infrastructureEnables multiple revenue generating services over same PDH infrastructure
IP
ETH
IPIPETH
MLPPPor GFP
16
How is EoPDH (T1 example) deployed?
• Service provider places CLE router on customer premise– Connects to network via 1 or more T1s
• Service provider wholesales DS1s to reach customer– ILEC multiplexes DS1 circuits to channelized DS3
• Service provider sets up PPP/MLPPP (or GFP) sessions– between CLE device and Service Edge Aggregator
• Service Edge Aggregator maps subscribers into EVCs (S-VLANs)– To handoff to Ethernet transport network
ILEC Network
NxT1
chDS3 ProviderPoP/CO
EoPDH CLE, e.g.,
router
EoPDH CLE, e.g.,
router
EthernetTransportNetwork
T1
PPP or GFP session
MLPPP or GFP session
EoPDH Service Edge Aggregator
17
Ethernet over Active Fiber
18
Ethernet Access over Active Fiber
Distance- Up to 140 Km with No Bandwidth Loss
Highest Bandwidth Capacity- P2P: 100 Mbps, 1 Gigabit, 10 Gigabit- WDM: 100s of Gigabits
Security- Physically Secure Medium with no EMF
emission; nearly impossible to tap lines
Scalability- EVC / E-Line / E-LAN using Q-in-Q VLAN- High Capacity enables Rate Limiting tiered services
Reliability - Protection with Redundant Links & Resilient Rings- OAM Performance Monitoring & Fault Notification
Secure Service Management- 802.3ah OAM IP-less Management & Provisioning- NIDs provide Securely Managed Demarcation
Central Office
WDM Ring
Media Conversion
NIDDemarcation
A/D Mux
A/D Mux
Multi-CustomerNID Demarcation
19
Ethernet over PON
20
Ethernet Access over Passive Optical Networks (GPON)
• Technology that offers:– Passive splitters used to share a single fiber among subscribers– Bandwidth per subscriber to 2.5Gb/s downstream / 1.25Gb/s
upstream– No electronics in outside plant
Wavelength Splitter/Combiner
Optical Line Terminal (OLT) 1490nm
1310nm
Optical Network Terminal (ONT)
Subscribers
CPE
10/100/1000
21
Ethernet over HFC Cable
22
Carrier Ethernet Architecture for Cable Operators
Headend Hub
EQAM
CMTS
Optical Metro Ring Network
VideoServer
D2A
AdInsertion
E-LAN
E-LineBusiness Services over Fiber (GigE)
Voice gateway
Voice/VideoTelephony
Digital TV, VOD,
Interactive TV, Gaming
Managed BusinessApplications
InternetAccess
AnalogTV Feeds
A2D
HubUNIUNI
CECE
E-NNIE-NNI
Another MSO or carrierNetwork
EoDOCSIS(future)
EoT1/DS3
PON
Greenfield Residential & Business Services
EoSONET/SDH,EoPDH
CECEUNIUNI
WDM
UNIUNIHome RunFiber
EoCoaxEoHFC
SwitchedFiber
Business Park
Business Services
Node
E-LineE-LAN
CECE
UNIUNI
CECE
WirelessPlant
ExtensionLeasedT1/DS3
CECEUNIUNI
23
FTTC
100 Mbps
coaxfiber
SwitchedEthernet
Over Coax
1-10 Gbps
1 Gbps
Metro Ring
FTTPUp to 1Gbps
PWE
Coax Trunk
Cable AmplifierCable
HFC Node
Carrier Ethernet over HFC Cable Plant
PONPWE
1-10 Gbps
WDMWDM
WDM
WDM
24
Ethernet over Wireless
25
Ethernet Access over Wireless Optical Mesh
Service Provider Requirements– Fast service activation– Profitable / high margin – Minimal capex– High bandwidth– Reliable service– Scalable bandwidth– No licensing or permits– No interference
The Wireless Optical Mesh
An Alternative to Lateral Fiber Expansion
– Service provider can lower the cost of reaching the customer from 95%
– Turn the network up indays vs. months
– Achieve an ROI of just afew months
Fiber
250m
Lateral
Time to add six more fiber laterals : 2-3 monthsTime to add six more fiber laterals : 2-3 months
Time to install 7 optical mesh nodes: 2 daysTime to install 7 optical mesh nodes: 2 days
26
Ethernet Access Applications
27
Ethernet Access Applications
RemoteDSLAM
Commercial AccessEPL, EVPLE-LAN
Backhaul
Ethernet Access Applications
• Business Metro Ethernet extension– E-Line– E-LAN
• Backhaul for cellularand remote video traffic
• ETTN – Ethernet to the node enabling next generation residential broadband
28
Business Ethernet Access Project
• Business Need– Multi-site bank needs to
connect branch office locations and disparate networks, recent bank merger created disparate networks
– Needed to allow inter-network connectivity
– Needed to implement and support a new e-banking application
• Network Solution– E-Access to VPN, EVPL– VLANs allowed separation
• Customer Benefit– Migrate to single network
without major disruption– Supported E-Banking to
improve core business 10M
100M
100M
Branch A
Branch B
Branch C
Branch D
Branch E
Branch F
Bank Headquarters and Data Center
E Banking
Metro Ethernet Network
MetroEthernet Network
IP-VPN
29
Municipal Wireless Ethernet Access
• Business Need– Internet access and mobility for
businesses, homes and government
• Network Solution– Metro-scale wireless Ethernet mesh
access network
• Customer Benefit– 100% Ethernet coverage, net access
for enterprise and residence in city limit
– Instantaneous data/voice support and 100% mobility in city for Gov’t, police, fireman, emergency personnel
30
Central Office
EthernetSwitch
Central Office
EthernetSwitch
Remote Office /Outdoor Cabinet
ResidentialCustomer
Remote IP DSLAM
Ethernet
Ethernet BackhaulIP DSLAM and 3G/3.5G Base-stations Backhaul
Ethernet Backhaul
Ethernet Backhaul
Cellular Base Station
31
Ethernet Access over Point-to-Point Microwave Links
Wireless Carrier Class Ethernet– Very high bandwidth– Carrier class service over licensed
bands. ( Interference free)– Dynamic bandwidth allocation with
adaptive modulation standards (ETSI EN 302-217)
Point-to-Point microwave provides over 50% of connections to the Wireless Base Stations Worldwide.
Adaptive Modulation BackhaulWireless Carrier
Ethernet Transport
400 Mbps Ring
100 Mbps Ring
32
The Advantages of Ethernet Access for Metro Extension
E-Line andE-LAN service
BroadbandWireless
Wireless data/videoMobile Computing
Small/Medium Business
Fiber, Copper
Copper, Fiber, Coax
E-Line andE-LAN service
E-Line andE-LAN service
BusinessBroadband
Residential Triple-Play
FTTx, Cable Modem and DSLAM Backhaul
Fiber
Carrier EthernetCarrier Ethernet
33
The Ethernet Advantage
• Ethernet provides the bandwidth required to support next generation applications and services
• Ethernet Access completes the connection– End to end Ethernet provides the most efficient, lowest cost
access method for extending Ethernet Metro networks
• Broad set of media and topologies supported by the standards while keeping consistent service attributes – ITU standards – Copper, Fiber– Hybrid Fiber Coax and Wireless
• Adherence to standards ensure consistent delivery of Ethernet access services
34
MEF Certifications Program: Access Technologies
• The MEF Certification Program will address access technologies to ensure conformance with Carrier Ethernet attributes
• The initial phase will address the conformance to ITU standards in delivering Ethernet services via copper, fiber and EPON access
• The initial phase also includes wireless Ethernet mesh access certification testing, based on forthcoming IEEE 802.11T, ensuring total coverage and mobility of Ethernet services
• Liaison with Cable Labs looking towards aligning Ethernet over HFC work with MEF specifications
35
Certification Leads to Interoperability
• Lets vendors cooperate to build complementary “end-to-end” solutions– Metro Core, Aggregation and Access Edge offerings– Providers have their own supplier ecosystem in place and aren’t
looking for a whole new solution
• Interoperability among vendors leads to more favorable market conditions– Interoperability provides a wealth of choices– Lowers the barrier of entry to new markets or applications by
reducing the attraction of proprietary architectures
36
Accelerating Worldwide Adoption of Carrier Ethernet Networks and Services