100g and beyond dc interconnect: present and future

12-13 April 2016 | Data Center World | London

100G and Beyond DC Interconnect:

Present and Future

• Dr. Susmita Adhikari

• Phone: +49-6131-69851-225

• [email protected]

• www.hubersuhner.com | www.cubeoptics.com | blog.cubeoptics.com

DATA CENTRE

WORLD

Excellence in Connectivity Solutions 12-13 April 2016 | Data Center World | London

Global Data Center Traffic

73.1%

8.7% 18.2%

2019

Within DataCenter

Data Center-to-Data Center

Data Center-to-User

75.4%

6.8% 17.8%

2014

Source: Cisco Global Cloud Index 2015, 2014–2019

• Traffic between data centers is growing faster

• 100G data center optics is accelerating

100G and Beyond DC Interconnect: Present and Future

2

Part I 100G DC Interconnect

‘Present’



IEEE 100GbE Standards

Non-Standard

Sourc

e: A

DV

A O

ptic

al

Copper

Multimode Single-Mode Single-Mode Single-Mode

Media Type MMF

Name 100GBASE-SR10

100GBASE-SR4

Standard IEEE 802.3ba IEEE 802.3bm

Electrical 10 x10Gb/s CAUI 10

4 x 25Gb/s CAUI 4

Reach 100m OM3/ 150m OM4

70m OM3/ 100m OM4

Fiber Count (Tx/Rx)

10 4

Lanes 1 850nm

1 850nm

Gb/s per lane 10Gb/s 25Gb/s

Connector MPO/MTP MPO/MTP

Media Type MMF

SMF

Name 100GBASE-SR10

100GBASE-SR4

100GBASE-LR4

100GBASE-ER4

Standard IEEE 802.3ba IEEE 802.3bm IEEE 802.3ba IEEE 802.3ba


4 x 25Gb/s CAUI 4

10 x 10Gb/s CAUI 10

10 x 10Gb/s CAUI 10

Reach 100m OM3/ 150m OM4

70m OM3/ 100m OM4

10km 40km

Fiber Count (Tx/Rx)

10 4 1 1

Lanes 1 850nm

1 850nm

4 1295.56nm 1300.05nm 1304.59nm 1309.14nm

4 1295.56nm 1300.05nm 1304.59nm 1309.14nm

Gb/s per lane 10Gb/s 25Gb/s 25Gb/s 25Gb/s

Connector MPO/MTP MPO/MTP LC LC


4


100GbE Form-Factor Evolution

• It is all about rack space, port density and power consumption

Sourc

e: F

inis

ar


5


100GbE Form-Factor Evolution(2)

CFP CFP2 CFP4 QSFP28 CFP CFP2 CFP4 QSFP28

Width 82mm 41.5mm 21.7mm 18.35mm

Power <24W <12W 9W 3.5W


10 x 10Gb/s CAUI 10

4 x 25Gb/s CAUI 4

4 x 25Gb/s CAUI 4

4 x 25Gb/s CAUI 4

Variants SR10, LR4, ER4 SR10, LR4, ER4 SR4, LR4, (CWDM4) SR4, LR4, (PSM4,CWDM4)

Medium MMF, SMF MMF, SMF MMF, SMF MMF, SMF


6

Excellence in Connectivity Solutions

SWDM Alliance PSM4 MSA CWDM4 MSA CLR4 Alliance OpenOptics MSA

Form-Factor QSFP28 CFP4, QSFP28 CFP4, QSFP28 QSFP28 QSFP28

Media MMF SMF SMF SMF SMF

Reach 100m OM4 500m 2km 2km >2km

Fiber Count (Tx/Rx)

1 4 1 1 1

Lanes 4 851nm, 881nm, 911nm, 941nm

1 1310nm

4 1271nm, 1291nm, 1311nm, 1331nm

4 1295nm, 1300nm 1304nm, 1309nm

4 (-32) 1504 to 1566 (200GHz spacing)

Gb/s per lane 25Gb/s 25Gb/s 25Gb/s 25Gb/s 25Gb/s

SWDM Alliance PSM4 MSA CWDM4 MSA CLR4 Alliance

Form-Factor QSFP28 CFP4, QSFP28 CFP4, QSFP28 QSFP28

Media MMF SMF SMF SMF

Reach 100m OM4 500m 2km 2km

Fiber Count (Tx/Rx)

1 4 1 1

Lanes 4 851nm, 881nm, 911nm, 941nm

1 1310nm

4 1271nm, 1291nm, 1311nm, 1331nm

4 1295nm, 1300nm 1304nm, 1309nm

Gb/s per lane 25Gb/s 25Gb/s 25Gb/s 25Gb/s


100GbE Non-Standard MSAs


7

SWDM Alliance PSM4 MSA

Form-Factor QSFP28 CFP4, QSFP28

Media MMF SMF

Reach 100m OM4 500m

Fiber Count (Tx/Rx)

1 4

Lanes 4 851nm, 881nm, 911nm, 941nm

1 1310nm

Gb/s per lane 25Gb/s 25Gb/s

SWDM Alliance

Form-Factor QSFP28

Media MMF

Reach 100m OM4

Fiber Count (Tx/Rx)

1

Lanes 4 851nm, 881nm, 911nm, 941nm

Gb/s per lane 25Gb/s


• Market share by medium


2015 Market Analysis


• 100G market share by type/reach

Courtesy 50G/NGOATH Ad Hoc March 2, 2016:

Preliminary February 2016 data from LightCounting

8


• 100G Form-Factor

– QSFP28 quickly becoming dominant form-

factor similar to 40G QSFP+

– QSFP28 increases density and decreases

power and price per bit

– QSFP28 increases front-panel density by 2.5

fold compared to QSFP+


2015 Market Analysis Preliminary February 2016 data from LightCounting


9

Courtesy 50G/NGOATH Ad Hoc March 2, 2016:

Preliminary February 2016 data from LightCounting

Part II 100G and Beyond DC Interconnect

‘Future’



Future Ethernet Speeds


11


Future Ethernet Speeds(2)



12


Future Spectrum of 200G and 400G Optics Media MMF SMF

Name 200G SR4

200G SWDM4

400G SR16

400G SR4.2

400G SWDM8

200G-PSM4

200G LR4/FR4

400G PSM4.2

400G LR8/FR8

400G PSM4/DR4

400G FR4

Reach 150m 100m 100m 100m 70m 500m 10km/2km

500m 10km/ 2km

500m 2km

Fiber Count (Tx/Rx)

4 1 16 4 1 4 1 4 1 4 1

Lambda

1 4 1 2 8 1 4 2 8 1 4

Gb/s per lane

50Gb/s 50Gb/s 25Gb/s 50Gb/s 50Gb/s 50Gb/s 50Gb/s 50Gb/s 50Gb/s 100Gb/s 100Gb/s

* Still in discussion/ standardization


Media MMF

Name 200G SR4

200G SWDM4

400G SR16

400G SR4.2

400G SWDM8

Reach 150m 100m 100m 100m 70m

Fiber Count (Tx/Rx)

4 1 16 4 1

Lambda

1 4 1 2 8

Gb/s per lane

50Gb/s 50Gb/s 25Gb/s 50Gb/s 50Gb/s

13


Future Form-Factors


14


400GbE Form-Factors


CFP2-like


15

CFP8 SR16 Demo at Ethernet Alliance Booth OFC2016

Part III 100G DC Interconnect

‘Metro’



• In last 2 years,100G surged 10x but

majority is long haul deployments

(75% in 2014)

• In 2016, 50% of deployments will be

100G in metro regional and access

markets


100G Metro DCI- Reality Check

0%

20%

40%

60%

80%

100%

2012 2013 2014 2015 2016 2017 2018 2019

Po

rts

(%)

Year Long Haul (>600km)

Metro (<600km)

Metro Access (<100km)

So

urc

e: IH

S In

fon

etic

s, A

pril 2

01

5


17


100G Ethernet Metro Gap

Problem


18

Metro-Cloud Interconnect Requirements

Reach

Capacity

Power

Flexibility

Cost per bit


Non-Standard Metro DCI Optics

• Complex phase & amp

modulation, less sensitive to

CD & PMD, so wider reach

• 100Gb/s PM-DQPSK per

lambda

• Tunable

• Based on simpler PDs, reach

limited by CD & PMD

• 25Gb/s ODB per lambda

• 4 lambda per 100G used

• 50Ghz or 100Ghz ITU-T grid

• Tunable

Coherent CFP/ CFP2-ACO Direct Detect CFP DWDM



19

Excellence in Connectivity Solutions 12-13 April 2016 | Data Center World | London 20

100G Direct Detect QSFP28 “ColorZ”

• Microsoft teaming with Inphi for worlds first 100G QSFP28 for metro DCI.

• Based on simpler PDs, reach limited by CD & PMD

• 50Gb/s PAM per lambda

• 2 lambda per 100G used

• DWDM 100Ghz ITU-T grid

• Connect data centers nearly 80km apart

• No need of active transponding in between

• Requires FEC on host board

• Tentative availability: 2017



Non-Standard Coherent vs. Direct Detect

100G in Metro

100G Coherent 100G Direct Detect

Power <32W <24W / <5W

Space CFP CFP2-ACO (requires external DSP)

CFP / QSFP28

Linerate per lambda (10G)

100Gbps 25Gbps / 50Gbps

Cost per Bit (10*10G = P)

4.8 X P 1.6 X P / TBD

Complexity Transponder required No Transponder required

P =

Transceivers

only


21


Future Outlook Metro DCI

• Metro access market is only going to

grow

• Not just about datacenter interconnect-

enterprise, IXs, financial institutes

• Direct Detect deployments supersede

coherent after 2018

• Coherent opted when spectral

efficiency required, otherwise DWDM

Direct Detect proves to be the optimal

solution

Source: IHS Infonetics, April 2015

12-13 April 2016 | Data Center World | London 22



• 100Gbps is quickly becoming de facto transmission speed

inside and outside Data Centers

• 100G switches moving towards higher port density with CFP2,

CFP4 and QSFP28 optics

• 200G and 400G Ethernet speed in development to meet the

continuous traffic demand

• It‘s a fragmented market


Conclusion


23

• Dr. Susmita Adhikari

• Phone: +49-6131-69851-225

• [email protected]

• www.hubersuhner.com | www.cubeoptics.com | blog.cubeoptics.com


Thank you for your attention.


Passive 100G Transport

SNMP

1310

DCAC

• No conversion, transport transceivers are

plugged straight into terminal equipment

• Less active elements => higher reliability,

less latency

• Transceivers are managed by terminal equipment (Switch, DSLAM, etc.)

PA

SS

IVE

1310

• Conversion from client (“grey transceivers”)

to line (“colored transceivers”) signals by

transponder cards

• Since being “active” a chassis with power

and management (SNMP) is needed

• Flexible but complex

AC

TIV

E


25

100g and beyond dc interconnect: present and future

Technology