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The Road to 10G Ethernet 千兆位元乙太網路簡介

The Road to 10G Ethernet 千兆位元乙太網路簡介. National Dong Hwa University Director of Computer Center Han-Chieh Chao. Outline. From the Beginning 10Gb Ethernet Summary. From the Beginning. From the Beginning. “ I think there is a world market for maybe five computers.“

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The Road to 10G Ethernet 千兆位元乙太網路簡介

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  1. The Road to 10G Ethernet千兆位元乙太網路簡介 National Dong Hwa University Director of Computer Center Han-Chieh Chao

  2. Outline • From the Beginning • 10Gb Ethernet • Summary Han-Chieh Chao

  3. From the Beginning Han-Chieh Chao

  4. From the Beginning • “I think there is a world market for maybe five computers.“ • Thomas Watson, chairman of IBM, 1943 • “640K ought to be enough for anybody.” • Bill Gates, 1981 • “32 bits should be enough address space for Internet” • Vint Cerf, 1977 (HonoraryChairman of IPv6 Forum 2000) Han-Chieh Chao

  5. An Introduction of Ethernet • Why Ethernet? • Easy structure • Low cost • Having most markets of LAN or MAN Han-Chieh Chao

  6. An Introduction of Ethernet(cont.) • The structure of Ethernet • In 1973, Robert Metcalfe and David Boggs developed Ethernet for interconnecting the labs at Xerox’s Palo Alto Research Center • Metcalfe named the “Ethernet”, choosing “ether” to describe the medium – a cable – that carrier bits to all nodes in the network. Han-Chieh Chao

  7. An Introduction of Ethernet(cont.) The Original Design of Ethernet from Robert Metcalfe Han-Chieh Chao

  8. An Introduction of Ethernet(cont.) • Metcalfe’s Law • Similar the “Moore’s Law” • Predicted the value of the network expands exponentially as the number of users increases • Due to the successful combination of Ethernet with the microprocessors Han-Chieh Chao

  9. An Introduction of Ethernet(cont.) • The History of Ethernet Technology • 1973, Metcalfe developed the Ethernet at Palo Alto. • 1980, Digital, Intel and Xerox developed the standard of 10Mpbs Ethernet. • 1992, the Grand Junction Network Company brought up the structure of 100Mbps Ethernet • 1998, addressed the standard of Gigabit Ethernet • mid-2002 , it will be completely addressed the draft 10 Gigabit standard. Han-Chieh Chao

  10. 10 Gigabit Ethernet Han-Chieh Chao

  11. Current Problems in Networks • Explosion usages of Internet • More consumer and business applications • Tremendous traffics • More than 80% of network traffic is now data than voice. • Multimedia is in vogue. • Bandwidth is not enough. • Managements become more complex. Han-Chieh Chao

  12. 10 Gigabit Ethernet: The Strategic Alternative • Easy, straightforward migration to higher performance levels without disruption. • Low cost of ownership – including both acquisition and support costs. • Familiar management tools and common skills base. Han-Chieh Chao

  13. 10 Gigabit Ethernet: The Strategic Alternative(cont.) • Ability to support new applications and data types. • Flexibility in network design Han-Chieh Chao

  14. Easy Migration to Higher Performance • 10 Gigabit Ethernet • Is the simplest way to scale enterprise and service provider (SP) networks • Leverages the installed base of more 300 million Ethernet switch ports • Supports all data services • Supports local, metro, and wide area networks Han-Chieh Chao

  15. Easy Migration to Higher Performance(cont.) • Is the faster, cheaper, and simpler than alternatives • Optionally matches MAN/WAN backbone speed of OC-192 • It promises the ability for Ethernet to use SONET/SDH for Layer1 transport across the WAN transport backbone. • SONET: Synchronous Optical NETwork • SDH: equivalent Synchronous Digital Hierarchy network Han-Chieh Chao

  16. Low Cost of Ownership • Each new generation of Ethernet provides 10 times the bandwidth at only three to four times the cost of the previous generation. • 10 Gbps WAN PHY links will cost less than 10 Gbps OC-192c links. • 10 Gbps WAN PHY is an asynchronous Ethernet link • SONET/SDH is difficult, expensive to implement timing and jitter requirement Han-Chieh Chao

  17. Low Cost of Ownership(cont.) • When compatibility with SONET infrastructure is not a requirement, 10 Gigabit Ethernet LAN PHY will be the most cost-effective way to build 10 Gbps links for data networks. Han-Chieh Chao

  18. Ethernet Economics Han-Chieh Chao

  19. Support for New Application and Data types Han-Chieh Chao

  20. IEEE802.3ae Han-Chieh Chao

  21. The Design Objectives • Preserve the 802.3 Ethernet frame format at MAC client server interface • Meet 802 functional requirements with the possible exception of hamming distance • Preserve the minimum and maximum frame size of the current 802.3 standard • Support full duplex only Han-Chieh Chao

  22. The Design Objectives(cont.) • Support star-wired LANs using point-to-point links and structured cabling topologies • Specify an optional media independent interface(MII) • Support P802.3ad link aggregation • Support a speed of 10 Gbps at the MAC/PLS service interface Han-Chieh Chao

  23. The Design Objectives(cont.) • Define two familiar PHYs • A LAN PHY, operating at a data rate of 10Gb/s • AWAN PHY,operating at a data rate compatible with the payload rate of OC-192/SDH VC-4-64c • Define a mechanism to adapt the MAC/PLS data rate to the data rate of the WAN PHY Han-Chieh Chao

  24. The Design Objectives(cont.) • Provide Physical Layer specifications that support link distances • At least 100m over installed MMF • At least 300m over MMF • At least 2, 10, 40km over SMF • Support fiber media selected from the second edition of ISO/IEC 11801(802.3 to work with SC25/WG3 to develop appropriate specifications for any new fiber media). Han-Chieh Chao

  25. We are here!! Han-Chieh Chao

  26. Flow Chart Showing the IEEE Standard Process Han-Chieh Chao

  27. The 10 Gigabit Ethernet Standard The architecture components of the LAN and WAN PHY Han-Chieh Chao

  28. The 10 Gigabit Ethernet Standard • MDI=Medium Dependent Interface • XGMII=10 Gigabit Media Independent Interface • PCS=Physical Coding Sublayer • PMA=Physical Medium Attachment • PMD=Physical Medium Dependent • WIS=WAN Interface Sublayer Han-Chieh Chao

  29. 10 Gigabit Ethernet LAN PHY Types • 10GBase-R • For serial PMD type • 64B/66B Code=>10.3GBaud • 10GBase-X • For WWDM PMD type • 8B/10B Code=>4x3.125GBaud Han-Chieh Chao

  30. 10 Gigabit Ethernet LAN MAC • MAC data rate of 10 Gb/s • Using existing full duplex mode • New rate adaptation capability • Extend interframe gap • Not used for the LAN PHY types Han-Chieh Chao

  31. PMD Options Han-Chieh Chao

  32. 10 Gigabit Ethernet WAN PHY Types • Physical Coding Sublayer(PCS) provides packet delineation and scrambling for the LAN PHY. • The WAN PHY uses the same mechanism for packet delineation and scrambling in the SONET Payload. • The WAN Interface Sublayer(WIS) adds the SONET framing, scrambling (x7+x6+1), and overhead. Han-Chieh Chao

  33. 10 Gigabit Ethernet WAN MAC • The MAC transmits a long Inter-Packet Gap (IPG) between packets when the WAN PHY is used. • The number of bytes added to each IPG is proportional to the length of the previous packet. • These extra bytes of IPG are removed during 64B/66B encoding to effectively reduce the data rate. Han-Chieh Chao

  34. PMD Options • Uses the same set of serial PMDs as the LAN PHY(850nm, 1310nm, 1550nm) • Support distances up to 300m on installed MMF and at least 40km on SMF. Han-Chieh Chao

  35. 10 Gigabit Ethernet Layer Datagram Han-Chieh Chao

  36. Detailed Illustration of the PHYs and Associated PMDs Han-Chieh Chao

  37. Application Han-Chieh Chao

  38. 802.3ae to 802.3z comparison Han-Chieh Chao

  39. Application for 10 Gigabit Ethernet • 10 Gigabit Ethernet in LAN • 10 Gigabit Ethernet in MAN • 10 Gigabit Ethernet in WAN • 10 Gigabit Ethernet in SAN Han-Chieh Chao

  40. 10 Gigabit Ethernet in LAN • Campus Backbone • Higher speed links • Inter-Campus • Long distance connectivity • Server Farm • Higher bandwidth content • Broadband Access driven demand to & from servers Han-Chieh Chao

  41. 10 Gigabit Ethernet in LAN(cont.) • Extended Storage Area Networks • Meeting SAN QoS requirements across WANs • Removal of LAN bottlenecks • Eliminate of 1Gbps link aggregation issues Han-Chieh Chao

  42. 10 Gigabit Ethernet in LAN(cont.) Han-Chieh Chao

  43. 10 Gigabit Ethernet in MAN Han-Chieh Chao

  44. MAN Evolves… • Ethernet reaches into the local loop • Broadband Video • Telephony • Internet Access • Video-on-Demand • Video Conferencing • Telemedicine • Distance Learning • Others… Han-Chieh Chao

  45. 10 Gigabit Ethernet in WAN Han-Chieh Chao

  46. 10 Gigabit Ethernet in WAN(cont.) • Seamless access to the optical infrastructure • Simple, very high speed, low cost inter/intra-PoP connection Han-Chieh Chao

  47. Market Impact Han-Chieh Chao

  48. Market Impact(cont.) • 10GbE revenue in WAN/MAN will grow over 2500% to $1.8 billion USD in 2003. • 10GbE LAN will start significant penetration in 2003. • 10GbE market will reach $3.6 billion USD in 2004. Han-Chieh Chao

  49. 10 Gigabit Ethernet in SAN Han-Chieh Chao

  50. 10 Gigabit Ethernet in SAN(cont.) • Devices connected via 10G Ethernet • Database servers • Technical/scientific/supercomputing • High-resolution Video • Local & Remote Data Mirroring • Centralized Backup • Storage Service Provider Han-Chieh Chao

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