Download - Ethernet Technology Summit 2015 - Different Strokes for ...€¦ · © 2015 Ethernet Alliance DIFFERENT STROKES FOR DIFFERENT FOLKS John D’Ambrosia Chairman, Ethernet Alliance April

© 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


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


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


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


What’s Going on?

• Market diversification

• The role of standards

• Technology

• Business models

• Ethernet is changing!

• The Appearance of Chaos!



New Rates and Target Applications

Ethernet Rate WirelessAccess 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 √



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.



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%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

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


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


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

UplinksThroughput (Tb/s)

per ToR SwitchUtilization

(%)

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


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


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!



400 GIGABIT ETHERNET

THE NEXT HIGHER SPEED


Defining the 400 GbE Family Today

1M

10M

100M

1G

10G

100G

1T

0.1 1 10 100 103 104 105

RA

TE (

b/s

)

Reach (m)

Twis

ted

Pai

r

SMFCh

ip



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


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.


PAM-4 Electrical Test Data

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


400 GbE Optical Proposals

100m MMF 25G NRZx16 Fibers

500m SMF 2 x 50G NRZ

x4 Fibers

1 x 100GPAM-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!



INDUSTRY TRENDS FOR HIGHER SPEEDS


Optical Modules for Ethernet


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

2010 2012 2014 2016 2018 2020

% S

har

e o

f To

tal P

er R

ate

10GbE 40GbE 100GbE


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


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

2010 2015 2020

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

Industry Defined IEEE 802.3 Defined


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

0%

10%

20%

30%

40%

50%

60%

2010 2012 2014 2016 2018 2020

% M

arke

t Sh

are

Per

Rat

e

Bas

ed o

n N

on

-Sta

nd

ard

ized

Op

tics

10GbE 40GbE 100GbE


Trend #3: The New Ethernet Paradigm?

1x

4x

10Gb/s

10GbE

40GbE

25Gb/s

100GbE

50Gb/s

50GbE ?

200GbE ?

25GbE



MOVING FORWARD


New Rates and Target Applications

Ethernet Rate

WirelessAccess 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 √

Legacy o

f 10

x?

High

er Sp

eed

s



The Ethernet Rate Roadmap


Check out the Ethernet Alliance “2015 Ethernet Roadmap” @ www.ethernetalliance.org/roadmap.

http://www.ethernetalliance.org/roadmap


Final Thought


Where’s Your

Ethernet?

We live in a networked world of

diversity….


Thank You!

John D’AmbrosiaChairman, Ethernet Alliance

Chief Ethernet Evangelist,

CTO Office, Dell

Email – [email protected]

Follow me @jodam on Twitter

Follow me on LinkedIn

• Ethernet Alliance: visit www.ethernetalliance.org;

Follow @EthernetAllianc on Twitter

Join the Ethernet Alliance LinkedIn group

Visit the Ethernet Alliance Facebook page

• IEEE P802.3bs 400GbE Task Force: http://www.ieee802.org/3/bs/index.html


mailto:[email protected]

http://www.linkedin.com/pub/john-d-ambrosia/0/b40/ba7/

http://www.ethernetalliance.org/

http://us.linkedin.com/company/ethernet-alliance

https://www.facebook.com/pages/Ethernet-Alliance/175317229233420

http://www.ieee802.org/3/bs/index.html

Download - Ethernet Technology Summit 2015 - Different Strokes for ...€¦ · © 2015 Ethernet Alliance DIFFERENT STROKES FOR DIFFERENT FOLKS John D’Ambrosia Chairman, Ethernet Alliance April

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