40/100 GbE over Multimode Fiber€¦ · Alfred Flores, RCDD . Preterminated Assemblies . Product...
Transcript of 40/100 GbE over Multimode Fiber€¦ · Alfred Flores, RCDD . Preterminated Assemblies . Product...
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Alfred Flores, RCDD Preterminated Assemblies
Product Manager
40/100 GbE over Multimode Fiber Optical Infrastructure Essentials
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The Standard IEEE 802.3ba Objectives 40GBASE-xxx
• Provide Physical Layer
specifications which support 40 Gb/s operation over: – At least 100m on OM3 MMF – At least 7m over a copper cable
assembly – At least 1m over a backplane – At least 10 km over single-mode
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Multimode Fiber
• OMx multi-mode fiber is: – Drawn from ISO/IEC 11801 Standard, Generic Cabling,
Customer Premises
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Color has meaning • OM3 (2003) multi-mode fiber is:
– 50/125 µm
– 2000 MHz•km EMB*, minimum, at 850 nm
• OM4 (2009) multi-mode fiber is:
– 50/125 µm
– 4700 MHz•km EMB*, minimum, at 850 nm
• ANSI/TIA-598-C Optical Fiber Cable Color Code – Indoor cable with AQUA jacket must be compliant to TIA-492AAAC
– OM3 is TIA-492AAAC
• Loss Budget for 40/100 GbE – OM3, 1.9 dB
– OM4, 1.5 dB
* Effective Modal Bandwidth
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Parallel Optics, MMF, 40 Gb/s
• MTP™*/MPO (Multi-fiber Push On) Connectors
• 8 or 12 Fiber Loose Tube or Ribbon cable
• Loss budget mandates pre-terminated solution *MTP is a registered trademark of USCONEC
40GBASE-SR4
Lanes 1 2 3 4
Lanes 4
10 11 12
Tx
Rx
* MTP is a registered trademark for USCONEC
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Parallel Optics, MMF, 100 Gb/s
• 10 Fibers at 10 GbE each way with 12F MTP
• 40 GbE links re-used, need additional MTP/MTP trunk to complete channel, fibers 1 and 12 go dark
*MTP is a registered trademark of USCONEC
100GBASE-SR10 Tx
* MTP is a registered trademark for USCONEC
Lanes x 2 3 4 5 6 7 8 9 10 11 x
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Parallel Optics, 100 Gb/s
• 24F MTP’s available today and approved in standard
• 24-Fiber MTP connections can significantly reduce pre-terminated densities
• Top Row Rx, Bottom Row Tx
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SMF, 40/100 GbE, CWDM
• SM option will use CWDM
• 40GBASE-LR4 – 4 lasers (10-Gig) in
each fiber, LC ends – 1 fiber Tx, 1 fiber Rx
• 100GBASE-LR4 – 4 lasers (25-Gig) in
each fiber, LC ends – 1 fiber Tx, 1 fiber Rx
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Transceiver Costs
• Actual MSRP • 10GBASE-SR • 10GBASE-LR • 40GBASE-SR4 • 40GBASE-LR4 • 100GBASE-LR4
•Estimated MSRP
• 100GBASE-SR10
Pricing sourced from sanspot.com on 01/31/2012
388x
$220 $445 $500 $3,674 $5,060
$38,475
10GBASE-SR (multimode)
10GBASE-LR (single-mode)
40GBASE-SR4 (multimode)
40GBASE-LR4 (single-mode)
100GBASE-SR10 (multimode)
100GBASE-LR4 (single-mode)
Optical Transceiver Costs
1x 2x 2x 16x 23x
175x
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Channel Cost Ratios on OM3
• Traditional rule of thumb, 3x cost increase for 10x performance increase – Latest pricing shows 2x increase for 40GBASE-SR4 over
10GBASE-SR • Sample channel cost for 40GBASE-SR4
– 2x transceiver cost of $500 = $1000 – Trunk cable, 12F, OM3, MTP-MTP, 100m = $1200 – Channel cost = $2200
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Channel Cost Estimate OS2
• Traditional rule of thumb, 3x cost increase for 10x performance increase – 16x increase for 40GBASE-LR4 over 10GBASE-SR
• Sample channel cost for 40GBASE-LR4 – 2x transceiver cost of $3700 = $7400 – Trunk cable, 12F, OS2, LC-LC, 100m = $600 – Channel cost = $8000 (almost 4x MMF)
– However, 40GBASE-LR4 can reach up to 10km
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Applications Update: Single Mode versus Multimode Fiber
Fiber Type SMF LOMMF EB (OM3)
LOMMF FB/XB (OM4/OM4+)
Cable Cost Low High Higher
Transceiver Type CWDM Parallel Optics Parallel Optics
Transceiver Cost High Low Low
Optical Reach @ 10G 10 km 300 m 550 m/600 m Expected Reach @
40/100G 10 km 100 m 150 m
Availability of 40/100G
Yes Yes Yes
Comparison for 40/100 GbE Implementations
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Optical Fiber Lifetime
• 10 years to 20 years
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40/100 Gb Ethernet
10 year transition for 1G Ethernet 5 years for 10GBE 5 years for 40GBE
0
2
4
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16 20
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2001
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100M 1G 10G 40G 100G
Mill
ion
serv
er u
nits
Based on IDC (2009) Server Forecast and hays_01_0407 ratios of Ethernet port speed
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Actual 40/100 GbE Performance
Data Rate
Channel Length 200m 600m 800m
RATE
100 Gigabit/s
RATE
40 Gigabit/s
400m
GIGAlite 10-FB OM4
40GBASE- SR4
GIGAlite -10 OM3 202m
100m
800m, 10 connections
40GBASE- SR4 150m
GIGAlite 10-FB OM4
GIGAlite -10 OM3
352m 4 conn.
252m 3 conn.
100GBASE- SR10 100m
100GBASE- SR10 150m
OM3
OM4
OM3
OM4
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Traditional Data Centers Optical
• Typified by – 62.5 µm, 50/125 µm, FDDI Grade or singlemode
– Backbone cabling terminated to SC, ST, a few LC connectors
– Usually field terminated
– Masses of jumpers and backbone cabling
– Usually tight buffered cabling
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Current Data Centers
• Typified by – 50/125 µm, OM3 (or OM2+)
Grade or singlemode
– Backbone cabling terminated to MTP*/MPO
– Cassettes with SC or LC connectors
– High port density actives driving the use of harnesses
*MTP is a registered trademark of USCONEC
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Future Data Centers
• Typified by – 50/125 µm, OM3/OM4 (+) Grade or singlemode – Backbone cabling terminated to MTP*/MPO – MTP/MPO patch cords – Retrofit of SC/LC adapter panels to MPO adapter
panels (reutilization of MPO backbone cables) – Preterminated assemblies mandated
• 10GBASE, 2.6 dB loss budget (cable/connector) • 40/100GBASE, 1.9 dB (OM3) loss budget
(cable/connector)
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Migration from 10 to 40/100
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1 and 10G Networks
High-Density 10G Network Configurations
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High-Density 10G Network Configurations
Easily Move to 40G Ethernet
Receive Transmit
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Easily Move to 40G Ethernet 100G Ethernet for Leading Edge Networks
Receive
Transmit
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Connectivity Options for 100G Ethernet Equipment
Receive Transmit
100G Ethernet for Leading Edge Networks
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Latest Developments
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MMF 100 GbE with Less Fibers
• 100GBASE-SR4 – Uses 4 fibers to transmit and 4 fibers to receive
– 25 GbE per fiber
– Same 12F trunk you install today reused again
– Target reach of 100m on OM4
– Target price of 100GBASE-SR10
– 4x 25 GbE transceiver not really there yet
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Short Reach Single-mode
• 100GBASE-MR – Proposed solution for SMF reach to 1km (maybe 2km)
• Target cost near 100GBASE-SR4
• MTP (MPO) Connectors to QSFP+ port (just like MMF)
• If implemented, creates interesting questions on maintaining polarity (making sure Tx goes into Rx)
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Transceiver Costs
Pricing sourced from sanspot.com on 01/31/2012
388x
$220 $445 $500 $3,674 $5,060
$38,475
10GBASE-SR (multimode)
10GBASE-LR (single-mode)
40GBASE-SR4 (multimode)
40GBASE-LR4 (single-mode)
100GBASE-SR10 (multimode)
100GBASE-LR4 (single-mode)
Optical Transceiver Costs
1x 2x 2x 16x 23x
175x
• 100GBASE-SR4 • 4x 25 GbE, 4F • OM4 • 100 m
•100GBASE-MR
• 4x 25 GbE, 4F • SMF, 12F needed • MTP, not LC • 1km (not 40km) • 17x less cost but 40x less reach
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Recommendations
• OM3 or OM4 – Early results show OM4 superior in reach and
connection pairs
• Use MTP Trunks with Cassettes – Will cover 1 GbE and 10 GbE today
– Ready for seamless migration to 40/100 GbE
• Lowest price tag and GREEN too!