40 Gigabit over copper - Thorsten Punke Marketing Manager ANZ TE Connectivity

Transcription

1 40 Gigabit over copper - 40GBase-T Thorsten Punke Marketing Manager ANZ TE Connectivity

2 IEEE Ethernet Update 40GBase-T

3 The history

4 The technical truth

5 The technical history More speed equals to more bandwidth Cabling technology has to support a certain bandwidth There is no substitute for bandwidth, except more bandwidth

6 IEEE Ethernet Update 40GBase-T

7 40 Gigabit Bandwidth over copper Supply & Demand -40GBase-T G Servers Gigabit Ethernet (Mbit/s) Bit Rate Core Networking Doubling ~18 months 40 Gigabit Ethernet 10 Gigabit Ethernet Gigabit Ethernet 100 Source: IEEE Server I/O Doubling ~24 months

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10 Source: IEEE

11 Based on Flatman contribution to Aug 2009 Penn State Workshop: The Market Opportunity for Higher Speed Ethernet over Copper (updated with IDC 2010 Server Forecast) Total Server-to-Switch Links (millions) GBE 7-100m Fibre 40GBE m Fibre 40GBE 7-30m Copper 100GBE 0-7m Copper 40GBE 0-7m Copper 10GBE mCopper 10GBE 0-15m Copper 1GBE 0-100m Copper

12 Server Ethernet Ports witha reach7 m < X m < 50 m Data Center withflat 2-layer Topology(ToRaswellasE/MoR) andvariable bandwidths Requiredportdensityon servers(4 ports) onlypossiblewithrj45, QSFP+ too big Required port density on switches(48 ports plus uplinks) only possible with RJ45, QSFP+ too big Base-T ports ideal for large volume at low cost and backward compatible

13 Caution: The following slides are showing initiatives from cabling standardbodieswhichareatveryearlystateandusageof these preliminary specs is at own risk. Recommendations canonlybegivenon projectbase The followingslidesarecurrentlynot in syncwithieee NG Base-T study group. There might be channel definitions madebyieee whichdo not matchthespecsshownnow

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15 Note: 2 and 3 will be application specific cabling

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18 Current technical ISO 11801draft Balancing act between cabling technology and frequency The coding is between of those two

19 The current options High end Class F A system (shielded only) High end Class E A systems (shielded only) New RJ-45 based system Current approach is extension of Cat 6 A

20 Example of a high end Class F A system with a chamber design

21 Class F A options IEC IEC IEC IEC by far the weakest interface

22 Extrapolated STP Class E A system

23 Cable options S/FTP, F/FTP, F/UTP

24 Performance Class Application Coupling attenuation Bandwidth Handling of EMI Impact on Transmission F/UTP Class EA 10 Gb/s 60dB 500 Good Improves ANEXT F/FTP Class F 10 Gb/s 70dB 600 Better Improves NEXT and ANEXT S/FTP Class FA 10 and 40 Gb/s 85dB 1500 Excellent Improves NEXT and ANEXT There is a desire for a F/UTP design Cost effective and a wide range of sources S/FTP technically best option

25 Important parameter for performance Coupling attenuation Correlating to ANEXT and Background noise MICE performance

26 How to upgrade All systems upgrade by patch cords

27 TIA Category 8 approach Political approach in order to avoid 7A Much weaker than 7A m (10dB for NEXT@1000 MHz)

28 Overall challenges Power consumption RJ45 desire versus Class F A approach Position to fibre systems

29 Conclusion 40 Gb/s will be a standard one day Class F A systems are fully supporting 25 and 50m channels Systems with a chamber design and S/FTP cables provide enough headroom above 1 GHz