Fiber penetration has doubled in last 5 years to US
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Transcript Fiber penetration has doubled in last 5 years to US
Optical Access for Business Services
Choosing the Right Technology
Market Trends in Business Services
Business Fiber Trend
% of Commercial Buildings with 20+ Employees
Fiber penetration has doubled in
last 5 years to U.S. Commercial
Buildings with 20+ employees
VSG 2010
• Carriers have developed a “think fiber first” mindset
– Service quality/reliability
– Growth potential/scalability
• Investment is accelerating in fiber access
– Fiber penetration has more than doubled in last 5 years
– Solutions must be fiber-ready
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Drivers for Optical Access
Smart Phones, Video, new apps are stressing backhaul infrastructure
Fiber access offers improved scalability and reliability
Fiber plant constraints addressed with WDM or PON
Pseudowire emerging as legitimate TDM transition option
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Key Attributes for Optical Access
Low Cost, Highly Scalable Bandwidth
– Ethernet, TDM
Time to Market for Service Ubiquity
– Ethernet, TDM, Copper
Service Convergence
– Path to all-packet architecture
SLA Management
– CoS support e.g. Real-time vs. Best-Effort
Resiliency
– 99.99+% service availability
Hardened solutions for outside plant deployment
– Robust operating range, metallic interface protection
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SONET / SDH
Point-to-Point
Ring
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Notes:
• Dedicated bandwidth per service
interface
• Deterministic transport performance
• ‘Single’ Class of Service - guaranteed
• Very mature OA&M capabilities
• Ideally suited for TDM transport
• DS1/E1 VT1.5/ VC-2
• DS3/E3 STS-1/ VC-3/4
• Adapted for packet based transport
• 10/100 Mbps GFP VT/VC
• GE/ 10GE GFP STS/VT/VC
• Modular, ‘carrier grade’ architecture
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Ethernet over Fiber
Point-to-Point
Ring
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Notes:
• Possibility for shared bandwidth per
service interface or trunk
• Engineered transport performance
• Multiple Classes of Service
• Emerging OA&M capabilities
• Ideally suited for packet based
transport
• Adapted for TDM based transport
• DS1/E1 PWE3/CES
• DS3/E3 PWE3/CES
• Modular architecture
• Emerging ‘carrier grade’ architecture
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GPON
Point-to-Multipoint
Notes:
• Shared bandwidth per service
interface
• Engineered transport performance
• Multiple Classes of Service
• Emerging OA&M capabilities
• Ideally suited for low bandwidth, best
effort packet based transport
• Adapted for TDM based transport
• DS1/E1 PWE3/ CES
• DS3/E3 PWE3/ CES
• Typically fixed access architecture
• Emerging ‘carrier grade’ architecture
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Technology Comparison
Technology
SONET/ SDH
Ethernet
over Fiber
GPON
Availability
• Ability for network to survive failures
Highest
High
Medium
Reliability
• Ability to detect and react to local faults
Highest
High
Medium
Packet Efficiency
• How efficiently Ethernet is carried
Medium
Highest
Highest
TDM Efficiency
• How efficiently DS1/E1, DS3/E3 is carried
Highest
Medium*
Medium*
Performance
• Tools to monitor error rates
• Capabilities in testing/ reporting
High
Medium**
Medium**
Cost per bit
• Overall cost to transport service
High
Medium
Low
* Pseudowire solutions available for DS1/E1
** Ethernet OAM standards are maturing
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Higher
Lower
Cost per bit
Technology Tradeoffs for Today’s
Solutions
SONET/ SDH
Ethernet over Fiber
GPON
Lower
Higher
Performance
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OPTI 6100 Family of Systems
Network interfaces (OMM)
LMX chassis
24 Line Card
Slots
Rack mount
336 DS1, 48 DS3,
OC-3, OC-12
Ethernet
OC-48
– OC-3
– TM, UPSR, 1310 nm IR and LR, w, w/o XC, ADM, 1550 LR
– OC-12
– TM, UPSR, 1310 nm IR and LR, w, w/o XC, ADM, 1550 LR
– OC-48
– Linear, UPSR
– SFP based
Low-speed (tributary) interfaces
MX chassis
12 Line Card Slots
Wall or Rack mount
84 DS1, 12 DS3,
Ethernet
OC-3, OC-12, OC-48
SMX chassis
–
–
–
–
–
–
–
DS1 (28 ports, M13, or VT1.5 mapped)
DS3 (3 port)
OC-3 (1 port, 2 fiber, SFP)
OC-12 (1 port, SFP)
Ethernet (10/100) (3 ports)(8 ports w, w/o tagging)
Transmux (1 port and 3 port)
GigE (copper, SM, MM, SFP)
4 Line Card Slots
Wall or rack mount
28 DS1, 6 DS3,
Ethernet
OC-3, OC-12, OC-48
Tilt-down Wall Enclosures for MX and
SMX application
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Advanced Ethernet Modules
vs.
VLAN1
Individual VLANs in
shared VCAT Group
Individual VCAT
Groups
Shared
VCG
Customers
VLAN1
OPTI-6100
Customers
GigE or
10/100
Router
HO/LO
VCAT
OPTI-6100
VLAN1
OPTI-6100
VLAN2
VLAN trunk
OC-12/48 SONET Ring
VLAN3
GigE
Applications
• EVPL service with VLAN separation of
customer traffic
• ELAN service with VLAN separation of
customer traffic
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Ethernet over Fiber Components
TA5000 8-port Gigabit Ethernet Access Module
– 8 GigE SFP cages
– Link Aggregation
– Link OAM
NetVanta 8044M
–
–
–
–
–
–
4 -10/100/1000BaseT WAN or LAN
4 - GigE SFP WAN or LAN
2 - Expansion Slots
1 and 2.5G ERPS Ring support with optical bypass option.
Clock Sync over Packet Ready e.g. G.8261/62 SyncE
Dual fed DC options (+/-24V, -48V DC)
Carrier Ethernet
– MEF 9, 14, 18
– Eth OAM CFM and PM
– TACASC+ and RADIUS Authentication, Authorization
8-port GigE
Access Module
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NetVanta 8044M Modular NTE
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Leverage Fiber Assets with CWDM
DS1
TA5000 MSAP
2xGE or
2x10GE
Central Office/
Exchange
TA5000 MSAP
Carrier
Ethernet
Network
8 port
EoFiber
AM
NetVanta 8044M
8 port PW Service Module
CWDM
GigE
NV8044M
Modular NTE
NV8044M
Modular NTE
8xDS1 & Clock Sync
10/100/1000
Cell
Site
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8xDS1 & Clock Sync
10/100/1000
Cell
Site
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Total Access GPON Solution
Total Access 5000 OLT
– GPON 2-Port Optical Line Terminal
– 21 OLTs/42 PONs per Total Access
5000
1,344 SUBs
Total Access 5000
– 2.488 Gbps downstream,1.244 Gbps
upstream
– Completely GEM based
Voice support via SIP
GPON Optical Network Terminals
– SFU—Support for triple-play delivery
2 POTS, 1 Ethernet port
2 POTS, 2 Ethernet ports
Voice, HS data, IPTV
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TA35X
GPON OLT
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Total Access 372 SBU
Total Access 372
–SBU ONT
– 8 POTS, 2 Ethernet, 4 DS1
Loop and Ground start
10/100/1000Bt Ethernet
– TLS Support
– MEF Compliant (future)
DS1 PWE
– GR950 Compliant Enclosure
– GPON and Active Versions
372 - SC APC GPON
372E - SFP Active Ethernet
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Conclusions
Fiber the preferred access media for business services
Choices available, each with its own set of strengths and
weaknesses
– SONET/ SDH
The most mature
Ideally suited to TDM services
Comparatively expensive
– Ethernet over Fiber
Suitable for packet based services over a wide range of speeds
Moderate cost
Excellent scalability
– GPON
Ideally suited to services up to 100Mbps
Can be engineered for business services
Lowest cost
Choice of technology is dependant upon service needs and
cost objectives
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