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10 Gigabit Ethernet Market and Technology Overview. David O’Leary Director, Consulting Engineering. 10 GbE Market Overview. Extension of existing Ethernet family of standards Another 10x jump for higher capacity Typical Ethernet applications at higher speed

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10 gigabit ethernet market and technology overview

10 Gigabit EthernetMarket and Technology Overview

David O’Leary

Director, Consulting Engineering


10 gbe market overview
10 GbE Market Overview

  • Extension of existing Ethernet family of standards

  • Another 10x jump for higher capacity

  • Typical Ethernet applications at higher speed

  • Also positioned as a MAN/WAN technology for use over dark fiber or SONET/SDH


10 gbe applications intra pop connectivity
10 GbE Applications: Intra-POP Connectivity

Aggregation

Layer

Customer CPE

IP Core

Routers &

Switches

10GE Intra-POP;

SONET to WAN

Optical

Core

10 GbE


10 gbe applications internet peering
10 GbE Applications: Internet Peering

ISP 1

10 GE (Private)

ISP 4

ISP 2

10 GE

10 GE

10 GE

10 GE

ISP 3


10 gbe applications server connections
10 GbE Applications: Server Connections

Customer Cages

Co-Location

Facility

Layer 4-7 Switches, Servers

Optical

Core

10 GE

Connections

IP Core

Direct

Attachment


10 gbe applications man or wan
10 GbE Applications: MAN or WAN

SONET or

dark fiber

10 GbE


10 gbe technology overview
10 GbE Technology Overview

  • Retention of 802.3 MAC and frame format

    • 64 – 1518 Byte frames

    • Jumbo-frames not included in standard

  • No half duplex mode

    • different from other versions of Ethernet

  • No CSMA/CD on full duplex

    • Simultaneous sending and receiving at all times

  • Works with 802.1Q, 802.3ad, etc.

  • Fiber interfaces only – no copper versions

  • LAN PHY – 10Gb/s

  • WAN PHY – 9.29Gb/s (SONET framing overhead)


10gbe terms and acronyms
10GbE Terms and Acronyms

  • PHY – PHYsical Layer Device

  • PMD – Physical Media Dependent

  • WIS – WAN Interface Sublayer

    • SONET rate and framing adaption

  • WWDM – Wideband Wave Division Multiplexing

  • XGMII – 10Gb Media Independent Interface

  • XAUI - 10Gb Attachment Unit Interface

    • XENPAK electrical interface

    • Replace or extend XGMII interface (lower cost)

  • XENPAK

    • consortium agreement for interoperability of 10Gb transceiver modules

    • Keyed Floating Duplex SC optical connector

    • PHY and PMD independent


10gbe media types
10GbE Media Types

  • 10GBase-SR – up to 300m over dark fiber

  • 10GBase-SW – up to 300m over SONET

    • Both 850nm, multimode fiber

  • 10GBase-LR – 2m-10km over dark fiber

  • 10GBase-LW – 2m-10km over SONET

    • Both 1310nm, single mode fiber

  • 10Base-ER – 2m – 40km over dark fiber

  • 10Base-EW – 2m – 40km over SONET

    • Both 1550nm, single mode fiber

  • 10GBase-LX4 – 4 parallel wavelengths over single multi- or single-mode fiber pair at 1310nm


802 3ae architectural components
802.3ae Architectural Components

Full Duplex 802.3 Media Access Control (MAC)

10Gb Media Independent Interface (XGMII) or

10Gb Attachment Unit Interface (XAUI)

Serial WAN PHY

64B/66B + WIS

Serial LAN PHY

64B/66B

WWDM

LAN PHY

8B/10B

Serial

PMD

1310nm

Serial

PMD

850nm

Serial

PMD

1550nm

Serial

PMD

850nm

Serial

PMD

1550nm

Serial

PMD

1310nm

WWDM

PDM

1310nm

From: 10GE Alliance Technology Overview White paper


Standardization status and schedule
Standardization Status and Schedule

  • IEEE 802.3ae Working Group

  • Work began in 1999

  • Project approved in January, 2000

  • Currently at “Sponsor ballot” status

    • See IEEE web page for gory process details

    • http://grouper.ieee.org/groups/802/3/rules/

  • Draft 4.3 is most current

  • Continuing to resolve various technical and editorial comments

    • Significant changes unlikely at this point

  • Final Standard quite likely in 2002

    • Tentative June 13th ratification


Interoperability status
Interoperability Status

  • May ’02 NetWorld+ Interop network test

    • 13 companies participated with 19 devices

    • Variety of switches, test equipment, fiber and components were included in the network

    • 4 of 7 Media types included

    • Chip level interconnect (XAUI) also tested

      http://www.10gea.org/10gea_pr_050702.pdf


Summary and conclusions
Summary and Conclusions

  • 10 Gigabit Ethernet is viable now

  • Standard is basically complete

  • Products are shipping

    • Switch and router interfaces

    • Test equipment

  • As with all new technology:

    • Test for interoperability, check interoperability test results (UNH IOL, Interop, etc.)

    • Test for performance (interface and system)


Reference sites
Reference sites

http://grouper.ieee.org/groups/802/3/ae/index.html

(standard status, meeting minutes)

http://www.10gea.org

http://www.ethermanage.com/ethernet/10gig.html

http://www.iol.unh.edu/training/index.html

(good technical tutorials on MAC, fault signaling, etc.)

http://www.xenpak.org/

http://www.sdsc.edu/10GigE/