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  • © 2015 Ethernet Alliancewww.ethernetalliance.org

    DIFFERENT STROKES FOR DIFFERENT FOLKS

    John D’Ambrosia

    Chairman, Ethernet Alliance

    April 16, 2015

  • © 2015 Ethernet Alliance

    Regarding the Views Expressed

    My Industry Involvement – Chairman, Ethernet Alliance Board of Directors – Chair, IEEE P802.3bs 400GbE Task Force – Recording Secretary, IEEE 802 Executive Committee

    The views I am expressing on IEEE standards and related products should NOT be considered the position, explanation, or interpretation of the Ethernet Alliance.

    Per IEEE-SA Standards Board Bylaws, Dec 2013

    “At lectures, symposia, seminars, or educational courses, an individual presenting information on IEEE standards shall make it clear that his or her views should be considered the personal views of that individual rather than the formal position of IEEE.”

    Ethernet Technology Summit 2015 2

  • © 2015 Ethernet Alliance

    Today’s Challenges for Ethernet

    • The explosion of users

    • New devices & markets

    • Apps, apps, apps

    • End-user experience driven by bandwidth

    • Multiplicative effect driving bandwidth growth

    • Diversity in applications and business models

    3Ethernet Technology Summit 2015

  • © 2015 Ethernet Alliance

    Market Diversity Examples

    Source: http://www.ieee802.org/3/ad_hoc/bwa/BWA_Report.pdfSource: http://www.ieee802.org/3/hssg/public/nov07/HSSG_Tutorial_1107.zip

    Ethernet Technology Summit 2015 4

    IEEE 802.3 HSSG - 2007 IEEE 802.3 BWA - 2012

    http://www.ieee802.org/3/ad_hoc/bwa/BWA_Report.pdf http://www.ieee802.org/3/ad_hoc/bwa/BWA_Report.pdf http://www.ieee802.org/3/hssg/public/nov07/HSSG_Tutorial_1107.zip

  • © 2015 Ethernet Alliance

    What’s Going on?

    • Market diversification

    • The role of standards

    • Technology

    • Business models

    • Ethernet is changing!

    • The Appearance of Chaos!

    5Ethernet Technology Summit 2015

  • © 2015 Ethernet Alliance

    New Rates and Target Applications

    Ethernet Rate Wireless Access Points

    Servers Networking

    1 Gb/s √ √ 2.5 Gb/s √ 5 Gb/s √

    10 Gb/s √ √ √ 25 Gb/s √ 40 Gb/s √ √

    100 Gb/s √ 400 Gb/s √

    Ethernet Technology Summit 2015 6

  • © 2015 Ethernet Alliance

    Why 2.5G / 5G BASE-T?

    • From 2003 to 2014 about 70 billion meters of Cat 5e and Cat 6 cabling were sold….

    • The introduction of 802.11ac for wireless access points and > GbE needs

    • 90% of ports outlets (≈1.3 B) are Cat 5e or Cat 6

    • Customers want more value from this infrastructure.

    7Ethernet Technology Summit 2015

  • © 2015 Ethernet Alliance

    What is Behind the Wall?

    Source: NGEABT Study Group Cabling Installed Base Update (BSRIA), http://www.ieee802.org/3/NGEBASET/public/jan15/jones_ngeabt_04c_0115.pdf

    0%

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    2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

    Cat 5e Cat 6 Cat 6a Cat 7

    In 2014 • 539 M Cat 5e Outlets • 743 M Cat 6 Outlets • 111 M Cat 6a Outlets • 10 M Cat 7 Outlets

    1282 M Outlets

    Ethernet Technology Summit 2015 8

    http://www.ieee802.org/3/NGEBASET/public/jan15/jones_ngeabt_04c_0115.pdf

  • © 2015 Ethernet Alliance

    Why 25GbE Servers?

    3.2 Tb/s Switch Based on 32 QSFP Ports

    # TORs for a 100K Server Data CenterServer I/O Servers 100 GbE

    Uplinks Throughput (Tb/s)

    per ToR Switch Utilization

    (%)

    40GbE (4x10G) 28 4 1.52 47.5 3572

    25GbE (Single Lane) 96 8 3.2 100 1042

    32 QSFP Ports can be configured to support

    25GbE, 40GbE, or 10GbE

    Source: Ethernet Alliance, Ethernet 103: Introduction to 25Gb/s Ethernet, https://www.brighttalk.com/webcast/6205/135253

    Ethernet Technology Summit 2015 9

    https://www.brighttalk.com/webcast/6205/135253

  • © 2015 Ethernet Alliance

    Benefits of 25GbE

    • Maximize Switch Throughput & Efficiency

    • Minimize CAPEX

    – Minimize # of ToR switches

    – Minimize # of Cables

    • Minimize OPEX

    – Less Power

    – Less Cooling

    • Minimize Cost per Bit

    • Technology Exists today!

    10Ethernet Technology Summit 2015

  • © 2015 Ethernet Alliancewww.ethernetalliance.org

    400 GIGABIT ETHERNET

    THE NEXT HIGHER SPEED

  • © 2015 Ethernet Alliance

    Defining the 400 GbE Family Today

    1M

    10M

    100M

    1G

    10G

    100G

    1T

    0.1 1 10 100 103 104 105

    R A

    TE (

    b /s

    )

    Reach (m)

    Tw is

    te d

    P ai

    r

    SM FC h

    ip

    Ethernet Technology Summit 2015 12

  • © 2015 Ethernet Alliance

    The 400GbE Architecture

    RECONCILIATION

    MAC

    PCS(+FEC)

    PMA

    PMD

    MDI

    MEDIUM

    PMA

    CDAUI

    CDMII

    • Goals • Flexibility • Support today’s and

    tomorrow’s 400GbE family • Interoperability between

    multi-generation implementations

    • Enable PHY innovation • Enable future PCS/FEC’s

  • © 2015 Ethernet Alliance

    Key Decisions

    • Architecture – CDMII & Extender Sublayer – KP4 FEC (embedded in PCS) – Optional EEE Support – Appropriate OTN Support – Better future proofing

    • Chip-to-chip (C2C) and C2M electrical interfaces – 16 x 25Gb/s (NRZ, based on

    802.3bm) – 8x 50 Gb/s (PAM-4)

    • 100m MMF (16 x 25G, NRZ – 16 parallel fibers, based on 802.3bm)

    Used with permission from Adam Healey, Avago Technologies. Measured test data presented in http://www.ieee802.org/3/bs/public/14_11/healey_3bs_01a_ 1114.pdf.

    Ethernet Technology Summit 2015 14

    PAM-4 Electrical Test Data

    http://www.ieee802.org/3/bs/public/14_11/healey_3bs_01a_1114.pdf

  • © 2015 Ethernet Alliance

    400 GbE Optical Proposals

    100m MMF 25G NRZ x16 Fibers

    500m SMF 2 x 50G NRZ

    x4 Fibers

    1 x 100G PAM-4

    x4 Fibers

    2km SMF 8 x 50G NRZ

    x1 Fiber

    8 x 50G PAM-4

    x1 Fiber

    4 x 100G PAM-4

    x1 Fiber

    10km SMF 8 x 50G NRZ

    x1 Fiber

    8 x 50G PAM-4

    x1 Fiber

    4 x 100G DMT

    x1 Fiber

    Faster

    Modulation

    # λs

    # fibers

    Too many hammers!

    Ethernet Technology Summit 2015 15

  • © 2015 Ethernet Alliancewww.ethernetalliance.org

    INDUSTRY TRENDS FOR HIGHER SPEEDS

  • © 2015 Ethernet Alliance

    Optical Modules for Ethernet

    17Ethernet Technology Summit 2015

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    2010 2012 2014 2016 2018 2020

    % S

    h ar

    e o

    f To

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    10GbE 40GbE 100GbE

  • © 2015 Ethernet Alliance

    Trend #1: “Chip-to-Module”(C2M) Interfaces

    • 10GbE interfaces not defined by IEEE 802.3

    • IEEE 802.3ba 40GbE and 100GbE C2M interfaces, based on 10Gb/s

    • IEEE 802.3bm 100GbE C2M, based on 25Gb/s

    • IEEE 802.3bs 400GbE C2M, based on 25Gb/s and 50Gb/s

    18Ethernet Technology Summit 2015

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    2010 2015 2020

    C2M Interfaces 10GbE, 40GbE, and 100GbE Optics

    Industry Defined IEEE 802.3 Defined

  • © 2015 Ethernet Alliance

    Trend #2: Non-Standardized Ethernet Optics

    19

    • Note 1 – 10GBASE-USR estimated to be no more than 10%. Counted as standardized 10G.

    • Note 2 - 40GbE BiDi not included as “non- standardized”

    Ethernet Technology Summit 2015

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    2010 2012 2014 2016 2018 2020

    % M

    ar ke

    t Sh

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    P er

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    B as

    ed o

    n N

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    n d

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    O p

    ti cs

    10GbE 40GbE 100GbE

  • © 2015 Ethernet Alliance

    Trend #3: The New Ethernet Paradigm?

    1x

    4x

    10Gb/s

    10GbE

    40GbE

    25Gb/s

    100GbE

    50Gb/s

    50GbE ?

    200GbE ?

    25GbE

    Ethernet Technology Summit 2015 20

  • © 2015 Ethernet Alliancewww.ethernetalliance.org

    MOVING FORWARD

  • © 2015 Ethernet Alliance

    New Rates and Target Applications

    Ethernet Rate

    Wireless Access Points

    Servers Networking

    1 Gb/s √ √

    2.5 Gb/s √ ?????

    5 Gb/s √ ?????

    10 Gb/s √ √ √

    25 Gb/s √ ?????

    40 Gb/s √ √

    50 Gb/s ????? ?????

    100 Gb/s √

    200 Gb/s ????

    400 Gb/s √

    Le gacy o

    f 1 0

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