Low Cost 100GbE Data Center Interconnect

Transcription

1 Low Cost 100GbE Data Center Interconnect Chris Bergey VP Marketing, Luxtera February

2 Low Cost 100GbE Data Center Interconnect Where does 100GbE come into the data center Challenges in the data center/equipment design Evolution of 100GbE Digital interfaces Fiber plant Modules Embedded February

3 Add Graphic Here Showing Datacenter 100G placement February

4 Challenges in Data Center Equipment Design for 100Gb Silicon capability outstrips 1U density capability Add picture of 1U switch Power Consumption/Size Size (LxWxH) Max Power SFP 48x14x9 1.5W QSFP 52x18x9 5W CFP2 106x42x12 12W CFP4 88x21x10 6W February

5 Challenges in Data Center Equipment Design for 100Gb 25G Signaling on PCB Reach Reproduced with permission from Commscope February

6 IEEE Standardization Efforts for 100GE 0 to 30m: Active Optical Cable Wavelength Agnostic 4x25G QSFP Reach limited by deployment practicality of AOC, not by the optical transceiver SR10-0 to 300m Parallel Multi-Mode Fiber 0 to 70m?: Parallel Multi-Mode Fiber 850nm? 4x25G QSFP with MPO 0 to 1000m: Parallel Single Mode Fiber 1310nm 4x25G QSFP with MPO Embedded Optics with MPO Longer Reach Possible 0 to 2000m: Advanced Encoding 1310nm 4x25G QSFP with LC Embedded Optics with LC LR4-0 to 10,000m Single Mode Duplex Pair 0 to 10,000m: WDM Single Mode Fiber 1310nm 4x25G QSFP with LC Longer Reach Possible Embedded Optics with LC 2/15/2012 Page 6

7 Modules MSA Module Evolution Supply chain advantages Multivendor Supply Cost Equipment vendor interoperability Fiber plant flexibility Optics reliability February

8 Single mode in the data center Historically multi-mode has been used Transceivers were cheaper Fiber was more expensive but distance was short enough that it didn t matter Many aggressive data centers are now moving to SMF Can support the largest datacenter reaches Offers future proofing (NRZ speeds, advanced encoding, multi-wavelength) Silicon Photonics friendly which drastically lowers transceiver cost February

9 Fiber Cost Comparison Density Fiber Type Relative Cost 24f OM f OM f SMF 1 Duplex SMF 2.0* 24f Relative Fiber Cost Source: Jan 2012 quote from cable vendor LC or MTP Termination costs not included. * Cost to derive 12 - duplex pairs Meters 24-Fiber SMF cable is half the cost of 12 duplex SMF cables, 1/3 the cost of 24f OM3 and 1/4 the cost of 24f OM4 9

10 Fiber + Module Cost 100m Density Fiber Type Cable Cost(*) Module Type Module Cost Total Cost 24f OM3 3.0 SR4 4.5X 7.5X 24f OM4 4.3 SR4 4.5X 7.8X 24f SMF 1 MR4 4.5X-16X 5.5X-17X Duplex SMF 0.2 LR4 25X 25.2X *Note: 8 fibers out of 24 used for SR4 and MR4, 2 fibers for LR4 Including the fiber cable, even at 100m MR4 is potentially the lowest cost overall solution. This cost advantage increases with longer reach. 10

11 Evolution of Copper Backplanes Copper backplane solutions historically transitioned from multi-chip to integrated solutions Start with switch + backplane copper transceiver PHY Followed by switch with integrated transceiver PHY Similar transition cycle occurred at 3.125G, 6.25G and 12.5G Phase 1 Multi-chip with backplane drivers Phase 2 Integration MSA Switch Blade - M ports to backplane MSA Switch Blade - M ports to backplane PHY N ports to network KR or SFI Switch PHY PHY N ports to network KR or SFI Switch Embedded PHY MSA PHY SFI KR Server Blade 2 or 4 ports to backplane Copper Backplane MSA KR electrical Server Blade 2 or 4 ports to backplane Copper Backplane CPU PCI NIC 2x / 4x SFI PHY KR CPU PCI NIC 2x / 4x KR 2/15/2012 Page 11

12 Optical Evolution in Rack CONTEMPORARY: MSA and AOC EMERGING: Embedded Optics Future: SoC Optics Integration MSA Switch Blade - M ports to backplane Switch Blade - M ports to backplane Optical ports to network Switch Optical ports to network Switch MSA 4x28G/Port Electrical Optical Switch and Blade Architecture with Optical I/O Optical Switch and Blade with Optical SoC Architecture Opto-Electronic SoC Integration will enable new high-performance compute and networking architectures 2/15/2012 Page 12

13 100G Serial What lies ahead for 100G and beyond? February

14 What lies ahead for 100G and beyond? ASIC Integration February

15 Questions? Chris Bergey VP Marketing, Luxtera February