Download - Optical Access for Business Services
Optical Access for Business Services
Choosing the Right TechnologyChoosing the Right Technology
2® Adtran, Inc. 2008 All rights reserved
Market Trends in Business Services
• 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
VSG 2010
Fiber penetration has doubled in last 5 years to U.S. Commercial Buildings with 20+ employees
Business Fiber Trend% of Commercial Buildings with 20+ Employees
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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
4® Adtran, Inc. 2008 All rights reserved
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
Ring
Point-to-Point 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
Ring
Point-to-Point 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
7® Adtran, Inc. 2008 All rights reserved
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
8® Adtran, Inc. 2008 All rights reserved
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
9® Adtran, Inc. 2008 All rights reserved
Technology Tradeoffs for Today’s Solutions
Co
st p
er b
it
PerformanceLower Higher
Lower
Higher SONET/ SDH
Ethernet over Fiber
GPON
10® Adtran, Inc. 2008 All rights reserved
OPTI 6100 Family of Systems
MX chassis
4 Line Card Slots
Wall or rack mount
28 DS1, 6 DS3, Ethernet
OC-3, OC-12, OC-48
12 Line Card Slots
Wall or Rack mount
84 DS1, 12 DS3, Ethernet
OC-3, OC-12, OC-48
24 Line Card Slots
Rack mount
336 DS1, 48 DS3, OC-3, OC-12
Ethernet
OC-48
SMX chassis
LMX chassis Network interfaces (OMM)– 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– 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)
Tilt-down Wall Enclosures for MX and SMX application
11® Adtran, Inc. 2008 All rights reserved
Advanced Ethernet Modules
Applications• EVPL service with VLAN separation of
customer traffic• ELAN service with VLAN separation of
customer traffic
Applications• EVPL service with VLAN separation of
customer traffic• ELAN service with VLAN separation of
customer traffic
OPTI-6100
GigE
OPTI-6100
OC-12/48 SONET Ring
Router VLAN1
VLAN2
VLAN3
GigE or 10/100 HO/LO
VCAT
Customers
VLAN trunk
OPTI-6100
VLAN1
VLAN1Customers
Shared VCG
Individual VCAT Groups
Individual VLANs in shared VCAT Group
vs.
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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 NetVanta 8044M Modular NTE
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CarrierEthernetNetwork
Leverage Fiber Assets with CWDM
Central Office/ Exchange
GigE
10/100/1000 8xDS1 & Clock Sync
10/100/1000 8xDS1 & Clock Sync
CellSite
CellSite
8 portEoFiber
AM
CWDM
Modular NTENV8044M
NV8044M Modular NTE
NetVanta 8044M 8 port PW Service Module
DS1
2xGE or 2x10GE TA5000 MSAP
TA5000 MSAP
14® Adtran, Inc. 2008 All rights reserved
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
– 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
Total Access 5000
GPON OLT
TA35X
15® Adtran, Inc. 2008 All rights reserved
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
16® Adtran, Inc. 2008 All rights reserved
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