Next Generation Fiber Structured Cabling and Migration to 40/100g
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The new high speed Ethernet standards, 40GBASE-SR4 and 100GBASE-SR10, will require a change in the fiber cable plant. Here we examine the media and connectivity solutions needed to ease the migration for 10 Gigabit Ethernet to 40 and 100 Gigabit Ethernet.
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Next Generation Fiber Structured Cabling and Migration to 40/100g
- 1. NEXT GENERATION FIBER STRUCTURED CABLING AND MIGRATION TO 40/100G Warren McCarty Technical Systems Engineer, Data Centers, Panduit © TCC 2014, Confidential and Proprietary
- 2. Agenda • Top of Mind Issues • Data Rate Evolution • Standards • Duplex to Parallel - The Impact on Cabling Infrastructure • Migrating from 10 Gigabit to 40/100 Gigabit Ethernet • What’s New & Looking Ahead • Questions
- 3. Top of Mind Issues Scalability The solution that works for small installs can grow into and work for large systems Modularity Everything works together All product line features and accessories are interoperable Density Need more connectivity in the same space Higher port count / higher port density Performance Higher bandwidth, higher-speed connectivity More compute power in the same real estate Agility Speed to deploy Installer productivity Efficient maintenance Risk mitigation Redundancy in design and in connection schemes
- 4. Ethernet Data Rate Evolution 0.1 GE 1 GE 10 GE 40 GE 100 GE More traffic converges onto single circuits Each circuit becomes more mission critical. Source: The Market Need for 40 Gigabit Ethernet – Cisco 2012
- 5. 1-32Gb Fibre Channel & 40/100Gb Ethernet Source: Dell’Oro January, 2011 40 and 100 Gigabit Ethernet will initially be niche applications Fiber solutions are just starting to be commercialized using Multimode media for intermediate reach Source: Gartner December, 2011 PROJECTED GROWTH RATE ESTIMATED PORT SHIPMENTS CONNECTOR APPLICATION 2012 2013 2014 2015 2012 2013 2014 2015 MDI SCS SAN 1Gb to 32Gb Fibre Channel (FC) 19% 22% 25% 27% 7.67M 9.36M 11.7M 14.86M LC ONLY LC & MPO LAN 10Gb ETHERNET 49% 45% 40% 37% 6.59M 9.55M 13.37M 18.31M LC ONLY LC & MPO - 1200% 162% 118% 5K 65K 170K 675K MPO ONLY MPO ONLY LAN 40Gb/100Gb ETHERNET MDI - Medium Dependent Interface SCS – Structured Cabling System
- 7. 802.3ba 40/100Gigabit Ethernet Overview • IEEE 802.3ba was ratified June 2010 • 8 PMDs (Physical Layer Media Dependent transceivers) are included • Multimode requires MPO/ribbon to port • Short reach copper cable assembly is included • Traditional Structured Twisted pair cabling is not included (40G short reach under research) SM
- 8. 802.3ba Summary of Options (PMDs) Reach 1m Backplane 7m copper cable assembly 100m OM3/ 150m OM4 10km SMF 40km SMF 40 Gigabit Ethernet 40GBASE-KR4 40GBASE-CR4 40GBASE-SR4 40GBASE-LR4 Signaling 4 x 10Gbps 4 x 10Gbps 4 x 10Gbps 4 x 10Gbps Media Backplane Twin-ax Parallel MMF Duplex SMF QSFP QSFP CFP PMD Name Module 100 Gigabit Ethernet PMD Name 100GBASE-CR10 100GBASE-SR10 Signaling 10 x 10Gbps 10 x 10Gbps 4 x 25Gbps 4 x 25Gbps Twin-ax Parallel MMF Duplex SMF Duplex SMF CXP CFP or CXP CFP CFP Media Module SM 100GBASE-LR4 100GBASE-ER4
- 9. IEEE 40G & 100G Standard: Duplex to Parallel * Engineered Link, 1.0dB max. connector insertion loss, 3.0dB/km fibre attenuation max. CFP – C Form-factor Pluggable QSFP – Quad Small Form-factor Pluggable CXP – High density Pluggable
- 10. Duplex to Parallel The Impact on Cabling Infrastructure
- 11. Big Impact on Cabling Infrastructure - From Duplex to Parallel
- 12. Fiber Cabling Systems 40G MM Transceiver - 40GBASE-SR4 4 x 10G tx / 4 x 10G rx TX Lane 0 TX Lane 1 TX Lane 2 TX Lane 3 NC NC NC NC RX Lane 0 RX Lane 1 RX Lane 2 RX Lane 3 Driver Driver Driver Driver VCSEL VCSEL VCSEL VCSEL MPO 12 TIA TIA TIA TIA PIN PIN PIN PIN
- 13. Fiber Cabling Systems 100G MM Transceiver - 100GBASE-SR10 10 x 10G tx / 10 x 10G rx NC TX Lane 0 TX Lane 1 TX Lane 2 TX Lane 3 TX Lane 4 TX Lane 5 TX Lane 6 TX Lane 7 TX Lane 8 TX Lane 9 NC NC RX Lane 0 RX Lane 1 RX Lane 2 RX Lane 3 RX Lane 4 RX Lane 5 RX Lane 6 RX Lane 7 RX Lane 8 RX Lane 9 NC Driver Driver Driver Driver Driver Driver Driver Driver Driver Driver VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL TIA TIA TIA TIA TIA TIA TIA TIA TIA TIA PIN PIN PIN PIN PIN PIN PIN PIN PIN PIN MPO 24
- 14. Fiber Cabling Systems 100G MM Transceiver - 100GBASE-SR10 2 x10 x 10G tx / 10 x 10G rx NC TX Lane 0 TX Lane 1 TX Lane 2 TX Lane 3 TX Lane 4 TX Lane 5 TX Lane 6 TX Lane 7 TX Lane 8 TX Lane 9 NC NC RX Lane 0 RX Lane 1 RX Lane 2 RX Lane 3 RX Lane 4 RX Lane 5 RX Lane 6 RX Lane 7 RX Lane 8 RX Lane 9 NC Driver Driver Driver Driver Driver Driver Driver Driver Driver Driver VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL VCSEL TIA TIA TIA TIA TIA TIA TIA TIA TIA TIA PIN PIN PIN PIN PIN PIN PIN PIN PIN PIN MPO 12 MPO 12
- 15. New 100G IEEE 802.3 Study Group • Next Generation 100Gb/s Optical Ethernet Study Group • New work impacts direction of future 100G MM PMDs • 4x25G instead of (10x10G) • Good for customers – reuse 40G cable plant • Research focused on direct modulation of VCSEL @ >25 G • 100G SR4 will use 8 lanes (4 Tx/4 Rx), QSFP MSA & MPO • Preserves SR4 installations with OMx ribbon cable plant • OIF group is developing CEI-28G-VSR common electrical interfaces for ANSI, IBTA & IEEE • Fiber will have to be EXCELLENT to support upcoming 25Gb/s
- 16. Fiber Cabling Systems Proposed - 100G MM Transceiver - 100GBASE-SR4 4 x 25G tx / 4 x 25G rx TX Lane 0 TX Lane 1 TX Lane 2 TX Lane 3 NC NC NC NC RX Lane 0 RX Lane 1 RX Lane 2 RX Lane 3 Driver Driver Driver Driver VCSEL VCSEL VCSEL VCSEL MPO 12 TIA TIA TIA TIA PIN PIN PIN PIN
- 17. Fiber Cabling Systems 100G Parallel Optics MDI Form-Factors Side-By-Side Ports • Incumbent method • SNAP12, iBpak • CFP compatible Stacked (vertical) Ports • Single-width linear pitch • Compatible with 12-fiber ribbon cable plant • High-density switch ports Single Ports – 24 Strand • Most compact • Most complex to manufacture (transceivers and connectivity) Single Ports – 12 Strand • TBD These variants collectively cover all interoperability scenarios
- 18. Cabling Migrations From 10Gbe to 40/100GbE
- 19. 19 Cabling Migrations From 10Gbe to 40/100GbE
- 20. Case Study: Migration Strategy On-Site Customer Comparison 40G 100G One installer, one Phillips screwdriver and six hours to deploy the solution • Represents 256 10G ports (fully populated Nexus 7010 has 8 x 32 10G ports) in top of cabinet • Migrated to 256 40G ports in center of cabinet • Migrated to 256 100G ports in bottom of cabinet • 10G • 8208 total fibers running into overhead cable tray • No enclosure needed • Maximized the amount of repurposed components (patch panels and cable) • Only angled modular solution in the industry • Plenty of room for MACs
- 21. Critical items to note for MPO 10/40/100Gbe Migrations • Gender • Polarity • Key
- 22. MPO Polarity Features & Types Ex. Key – Up Method B: Key-Up (female) to Key-Up (female) Method A: Key-Up (female) to Key-Down (female)
- 23. Polarity • Transmit lanes of one module connect with receive lanes of other module • Simple direct connection – Female MTP patch cord with “keys up” at both ends • Not as simple in real life deployment when reusing MTP trunks – Method A – Method B – Method C Key up to key down Key up to key up Pair-wise flip
- 24. What is the Problem? Seems easy until Polarity & Gender are considered. Method A Trunk Key-Up/Key-Down Female - Female 10Gbe Trunks Pinned Female 40/100Gbe Trunks Pinned Male Method B Adapters Key-Up/Key-Up Method B Key-Up/Key-Up Male - Male Method B MPO Equipment Cords Key-Up(F)/Key-Up(F)
- 25. Solution - PanMPO Connector Change Polarity Key Up Remove Outer Housing , Flip & Reinstall Key - Down Change Gender Female Male Remove Outer Housing Using Pin Extend / Retract Tool Pull Pins Forward & Replace Outer Housing.
- 26. What’s New & Looking Ahead 2/20/2014 SM
- 27. Signature Core™ – Next Gen Multimode SM
- 29. Cisco 40GBASE-SR-BD Compatible Switches Cisco 6000 Series Switches • 6001 • 6004 Cisco 9000 Series Switches • 9508 • 9396PX • 93128TX Cisco 7000 Series Switches** • 7018 • 7010 ***Using F3 Line Cards (3rd Generation) SM
- 30. Higher Speed Efforts – IEEE 802.3bj 0 to 106m: 100G over OM4, Parallel multimode fiber (850nm) 4x25G QSFP+ with MPO 100GBASE-SR4 Retimed Module – CDR in module for optical transmitter 0 to 20m: 100G Ultra-short reach, Un-retimed parallel optics Parallel Optics Fiber 4x25G QSFP+ with MPO 100GBASE-UR4 Lower power "SR-lite” 100GBASE-SR4 and 100GBASE-UR4 to be interoperable 0 to 500m: 100G Over single-mode fiber (1310nm window) ? (TBD) 4 PMD Options under consideration: - Parallel Optics – 100GBASE-PSM4 - Duplex fiber pair: - Wavelength Division Multiplexing – WDM - Discrete Multi-Tone – DMT - Pulse Amplitude Modulation – PAMn 0 to 40,000m: 40G Ultra-long reach over single-mode fiber Single-mode Duplex Fiber Pair Standardization – March 2015 SM 4x25G QSFP+ with MPO 40GBASE-ER4 - In support of Metro Area Networks - Extended reach option to 40GBASE-LR4 - Same CWDM wavelengths, 20km and 40km options Call-For-Interest (March 2013 Plenary) – 400G Ethernet ? (TBD) Interest to standardize 1Terabit PMD No proposals to date
- 31. PLEASE LET ME KNOW HOW I DID! “Next Generation Fiber Structured Cabling and Migration to 40/100G” 1) WITH YOUR MOBILE DEVICE: In the TCCLive mobile app, “Agenda” section, then tap “Surveys” - OR 2) FILL OUT THE PAPER VERSION given to you at registration © TCC 2014, Confidential and Proprietary
Notas do Editor
- From Gartner 2010 actual port shipments FC = 6,444,900 and 10Gb = 4,418,200FC40 and 100 Gigabit Ethernet port volume is projected to be years away and be quite small. Aggregate 40 and 100 gigabit Ethernet ports in 2015 are less than 1% of the total. This forecast will probably change as standards and alternative technologies evolve, but no one knows how.We keep an eye this space, especially for fiber test products. (Good time to whip out a QuickMap). There are too many moving parts regarding copper to make anything but an incorrect prediction today.A Medium Dependent Interface (MDI) describes the interface (both physical and electrical) in a computer network from a physical layer implementation to the physical medium used to carry the transmission. Implications: It is unclear if 40/100 gigabit will ever be significantOnly FNET has the resources and market investment to “be there” if 40/100 gigabit does become significantThe role of twisted pair at these speeds is a complete guess today
- 802.3ba is the study group developing the standard for 40 and 100 Gigabit Ethernet
- 802.3ba is the IEEE standard for 40 and 100 Gigabit Ethernet. This time IEEE grouped together 40 and 100Gigabit. In order to meet the timeframes requested the in the market, when developing the Physical Layer Media Dependent transceivers, they chose to go with mostly known (10Gig) technology which is integrated into a parallel transceiver. The optical PMDs (Physical Medium Dependent [IEEE 802.3]). will be over multi-fiber ribbon fiber using MPO connectors.A short reach copper option is included over twinaxial cable assemblies which is similar to SFP+, except there are four lanes rather than 1.There is not any option for using structured copper cabling (no UTP so STP)
- This chart summarizes the actual PMDs (Physical Layer Media Dependent transceivers) options included in the standard.The shorter reach options which are likely used in the data center, 7m cable assembly, and 100 or 150 m over multimode fiber utilize parallel 10Gig sigalling.
- This chart represents a roadmapfor ‘current’ and ‘future’ short/longreach Ethernet transceivers.Highlighted are thosePMDs (Physical Media Dependent = Transceiver) for 40 & 100Gb/s Ethernet. Both are definedby IEEE 802.3ba as MPO/MTP form factor connectors.40G: 4 - 10Gb/s lanes of transmit and 4 – 10Gb/s lanes of receive in a 12-fibre MTP100G: 10 – 10Gb/s lanes of transmit and 10 – 10Gb/s lanes of receivetraffic in either a 24-fibre MTP or in 2 12-fibre MTP connectors.Also note thechange in reach of thefuture MM transceivertechnology (from a 300 meter solutionwith OM3 fibre to a 100 meter one & from a 550 meter solutionwith OM4 to a 150 meter solution).Note – 125m isshown in the chart sincethiswasbasedon 1.5dB of connectorinsertionloss and not 1.0dB as appears in thestandardtoday.
- 802.3ba is the study group developing the standard for 40 and 100 Gigabit Ethernet
- Duplex to paralell – is there such a thing as 40 & 100 GbE? Right now, isn’t it really aggrigation?
- Currently no switch manufacturers are shipping this configuration
- Now THIS is new!
- Panduit’s SFQ cassette-based solution is ideal for reducing cable congestion in the Main Distribution Area. Discreet SFQ cassettes deployed for 10G applications are re-purposed elsewhere in the data center when upgrading to 40G. The MTP jumpers that connected to the read of those cassettes are joined together in a QPPABL adapter that occupies one of the panel slots in the QuickNet Patch Panel. The remaining open slots contain tethered SFQ cassettes. This is what enables a 1-to-1 migration from 10G (6 – 10G LC ports per slot) to 40G (6 – 40G MTP ports per slot). Additional slots are required when migrating from 40 to 100G. With the economic, enclosure-less, SFQ solution, Panduit delivers the highest density 40G & 100G solution on the market today.Panduit demonstrates both thought leadership and technical innovation through this system.
- So what are the considerations when it come to fiber connectors? The MPO connector is the industry standard for high density fiber deployment. The MPO is used in 10G, 40G, and 100G systems. The most important things to consider when migrating from 10G to 40G or 100G on MPO are gender, polarity, and the key position.So why are these things so important?????
- To understand the importance of gender, polarity, and the key position let’s first take a look at the MPO connector and how polarity is dictated by key position:Let’s familiarize ourselves with the features of existing MPO connectors.The MPO connector is a multi-piece fiber connector. It contains.A moveable outer housing that is used to push the connector into an adapter or transceiver. Pull on it to disengage the connector.A connector body housing which has the polarization key molded into itA high precision fiber ferrule which contains the multi-fiber (12 fiber) arrayThe ferrule also contains holes which contain alignment pins (for a male connector) and are left empty for a female connector.The orientation of polarization key may either be up or down with respect to fiber #1 when on a fiber assemblyThe key-up to key-down configuration is called Method (or type) AThe key-up to key-up configuration is known as Method (or type) BGender combinations also are a component of defining an MPO-MPO fiber assembly. They are:Male to Male Male to Female Female to FemaleA few of these are shown on this slide.
- Reveiew Method A trunk & key positionsReview Method B trunk & key positionssReview Interconnect pinning and key positions (F/F)Review 10G trunk standard (pinned F/F)Review 40/100G standard (pinned M/M)Go through migration from 10G to 40G with an installed trunk.The potential to have a non-standard system or to be stuck using hybrid cables is very high
- Panduit’s new PanMPO connector solves the issues of maintaining polarity and gender through complex fiber channels while maintaining the same high performance of an MTP connector.Explain how to change Polarity & Gender……Panduit still uses the same high precision ferrule and guide pins on this new MPO connector which allow it to deliver the same optical performance found in MTP connectors.