The Future of Optical IEEE 802.3 Ethernet

David Law, Distinguished Technologistdlaw@hpe.com

Before I Share my Opinion

Per IEEE-SA Standards Board Bylaws, Dec 2019

“At lectures, symposia, seminars, or educationalcourses, an individual presenting information onIEEE standards shall make it clear that his or herviews should be considered the personal viewsof that individual rather than the formal positionof IEEE.”

IEEE 802.3 Speeds and application areasFirst six speeds took 30 years, next six took 5 years

3

10M

100M

1G

10G

100G

Rate (b/s)

1T

2010 20201980 1990 2000

- New IEEE 802.3 Ethernet speed approved - New IEEE 802.3 Ethernet speed projected

- New IEEE 802.3 automotive PHY - New SONET/SDH/OTN speed approved

IEEE 802.3 Speeds

IEEE 802.3 Ethernet Physical layers

4

10M

100M

1G

10G

100G

10 102 103 104 1051

Distance (m)

Rate (b/s)

1M

1T

- Backplane

- Twisted pair- Twin-axial

- Co-axial

- Multimode Fibre

- Point to Multipoint Fibre

- Voice grade copper

- Single-mode Fibre

- Single twisted pair

- Plastic optical Fibre

10-1

- Deprecated- Project objective

IEEE 802.3 PHYs

- Super PON

- BiDi Single-mode Fibre

- DWDM systems

IEEE 802.3 Ethernet Physical layers

5

10M

100M

1G

10G

100G

10 102 103 104 1051

Distance (m)

Rate (b/s)

1M

1T

- Backplane

- Twisted pair- Twin-axial

- Co-axial

- Multimode Fibre

- Point to Multipoint Fibre

- Voice grade copper

- Single-mode Fibre

- Single twisted pair

- Plastic optical Fibre

10-1

- Deprecated- Project objective

IEEE 802.3 PHYs

- Super PON

- BiDi Single-mode Fibre

- DWDM systems

IEEE 802.3 Ethernet Physical layersIEEE P802.3cz Multi Gigabit Optical Automotive Ethernet

6

10M

100M

1G

10G

100G

10 102 103 104 1051

Distance (m)

Rate (b/s)

1M

1T

- Backplane

- Twisted pair- Twin-axial

- Co-axial

- Multimode Fibre

- Point to Multipoint Fibre

- Voice grade copper

- Single-mode Fibre

- Single twisted pair

- Plastic optical Fibre

10-1

- Deprecated- Project objective

IEEE 802.3 PHYs

- Super PON

- BiDi Single-mode Fibre

- DWDM systems

IEEE P802.3cz

Multi Gigabit Optical Automotive Ethernet

Specify additions to and appropriate

modifications to add Physical Layer

specifications and management

parameters for multi gigabit optical

Ethernet for application in the automotive

environment.

IEEE 802.3 Ethernet Physical layersIEEE P802.3db 100 Gb/s, 200 Gb/s, and 400 Gb/s Short Reach Fiber

7

10M

100M

1G

10G

100G

10 102 103 104 1051

Distance (m)

Rate (b/s)

1M

1T

- Backplane

- Twisted pair- Twin-axial

- Co-axial

- Multimode Fibre

- Point to Multipoint Fibre

- Voice grade copper

- Single-mode Fibre

- Single twisted pair

- Plastic optical Fibre

10-1

- Deprecated- Project objective

IEEE 802.3 PHYs

- Super PON

- BiDi Single-mode Fibre

- DWDM systems

IEEE P802.3db

100 Gb/s, 200 Gb/s, and 400 Gb/s

Short Reach Fiber

Specify additions to and appropriate

modifications of IEEE Std 802.3 and

adds Physical Layer specifications and

management parameters for 100 Gb/s,

200 Gb/s, and 400 Gb/s Ethernet optical

interfaces for server attachment and

other intra data center applications using

100 Gb/s signaling over optical fiber

IEEE 802.3 Ethernet Physical layersIEEE P802.3cu 100 Gb/s and 400 Gb/s over SMF at 100 Gb/s per Wavelength

8

10M

100M

1G

10G

100G

10 102 103 104 1051

Distance (m)

Rate (b/s)

1M

1T

- Backplane

- Twisted pair- Twin-axial

- Co-axial

- Multimode Fibre

- Point to Multipoint Fibre

- Voice grade copper

- Single-mode Fibre

- Single twisted pair

- Plastic optical Fibre

10-1

- Deprecated- Project objective

IEEE 802.3 PHYs

- Super PON

- BiDi Single-mode Fibre

- DWDM systems

IEEE P802.3cu

100 Gb/s and 400 Gb/s over SMF at

100 Gb/s per Wavelength

Define additions to and appropriate

modifications of IEEE Std 802.3 to add

PHY specifications and Management

Parameters for 100 Gb/s and 400 Gb/s

Ethernet optical interfaces for reaches

up to 10 km based on 100 Gb/s per

wavelength optical signaling

IEEE 802.3 Ethernet Physical layersIEEE P802.3cp Bidirectional 10 Gb/s, 25 Gb/s, and 50 Gb/s Optical Access PHYs

9

10M

100M

1G

10G

100G

10 102 103 104 1051

Distance (m)

Rate (b/s)

1M

1T

- Backplane

- Twisted pair- Twin-axial

- Co-axial

- Multimode Fibre

- Point to Multipoint Fibre

- Voice grade copper

- Single-mode Fibre

- Single twisted pair

- Plastic optical Fibre

10-1

- Deprecated- Project objective

IEEE 802.3 PHYs

- Super PON

- BiDi Single-mode Fibre

- DWDM systems

IEEE P802.3cp

Bidirectional 10 Gb/s, 25 Gb/s, and 50

Gb/s Optical Access PHYs

Define physical layer specifications and

management parameters for symmetric

bidirectional 10 Gb/s, 25 Gb/s, and 50

Gb/s operation over single strand of

single mode fiber of at least 10 km

IEEE 802.3 Ethernet Physical layersIEEE P802.3ct 100 Gb/s, IEEE P802.3cw 400Gb/s, over DWDM systems

10

10M

100M

1G

10G

100G

10 102 103 104 1051

Distance (m)

Rate (b/s)

1M

1T

- Backplane

- Twisted pair- Twin-axial

- Co-axial

- Multimode Fibre

- Point to Multipoint Fibre

- Voice grade copper

- Single-mode Fibre

- Single twisted pair

- Plastic optical Fibre

10-1

- Deprecated- Project objective

IEEE 802.3 PHYs

- Super PON

- BiDi Single-mode Fibre

- DWDM systems

IEEE P802.3ct

100Gb/s over DWDM systems

Define physical layer specifications and

management parameters for the transfer

of Ethernet format frames at 100 Gb/s at

reaches greater than 10 km over DWDM

systems.

IEEE P802.3cw

400Gb/s over DWDM systems

Define physical layer specifications and

management parameters for the transfer

of Ethernet format frames at 400 Gb/s at

reaches greater than 10 km over DWDM

systems.

IEEE 802.3 Ethernet Physical layersIEEE P802.3cs Increased-reach Ethernet optical subscriber access (Super-PON)

11

10M

100M

1G

10G

100G

10 102 103 104 1051

Distance (m)

Rate (b/s)

1M

1T

- Backplane

- Twisted pair- Twin-axial

- Co-axial

- Multimode Fibre

- Point to Multipoint Fibre

- Voice grade copper

- Single-mode Fibre

- Single twisted pair

- Plastic optical Fibre

10-1

- Deprecated- Project objective

IEEE 802.3 PHYs

- Super PON

- BiDi Single-mode Fibre

- DWDM systems

IEEE P802.3cs

Increased-reach Ethernet optical

subscriber access (Super-PON)

Define physical layer specifications and

management parameters for optical

subscriber access supporting point-to-

multipoint operations using wavelength

division multiplexing over an increased-

reach (up to at least 50 km) passive

optical network (PON).

IEEE 802.3 Ethernet Passive Optical Networks (EPON)

12

IEEE Std 802.3bk-2013

Extended EPON

Split ratio of 1:64 @ 20 km for 1G

Split ratio of 1:64 @ 20 km for 10G

Central

Office (CO)Subscriber

Subscriber

Subscriber

Subscriber

Subscriber

Subscriber

Optical

splitter/combiner

Single fibre

IEEE Std 802.3bv-2009 10 Gb/s

Ethernet Passive Optical

Network (EPON)

10 Gb/s operation

IEEE Std 802.3bn-2016

EPON Protocol over Coax

(EPoC)

IEEE Std 802.3ca-2020

25 and 50 Gb/s Passive

Optical Networks

25 Gb/s operation

50 Gb/s operation

IEEE Std 802.3ah-2004

Subscriber Access Networks

1Gb/s operation

IEEE Std 802.3-2018 Standard for Ethernet

IEEE 802.3cs Physical Layers for increased-reach Ethernet optical subscriber access (Super-PON)

13

Wavele

ngth

Split

ter

Com

bin

er

Split

ter

Subscriber

Subscriber

Sp

litte

r

Subscriber

Subscriber

Split

ter

Subscriber

Subscriber

Wavele

ngth

Split

ter

Com

bin

er

Am

plif

icatio

n

Central Office

Colours indicate group of two wavelengths, one upstream, one downstream

Ethernet Access PMDs for Central Office Consolidation (Super-PON)URL: http://www.ieee802.org/3/cfi/0718_1/CFI_01_0718.pdf

Ethernet Bandwidth Assessment Part II

14See https://www.ieee802.org/3/ad_hoc/bwa2/BWA2_Report.pdf

IEEE 802.3 Beyond 400 Gb/s Ethernet Study Group

– Motivation

– Ethernet Bandwidth Assessment Part II documented latest analysis of industry bandwidth needs and driving factors

– Increased # of users x Increased access methods and rates x Increased services = Bandwidth Explosion

– Study Group approved on Tuesday 1st December 2020

– First meeting on 18th January 2021

– Scope

– Develop a Project Authorization Request (PAR) and Criteria for Standards Development (CSD) responses for:

1. Beyond 400 Gb/s Ethernet

2. Physical Layer specifications for existing Ethernet rates based on Physical Layer specifications for beyond 400 Gb/s Ethernet

Internal Use Only 15

More information

–Links to IEEE 802.3 Task Forces and Study Groups

– http://ieee802.org/3/index.html

– IEEE Get 802 program

– IEEE 802 Standards available for download at no cost six months after publication

– https://standards.ieee.org/products-services/ieee-get-program.html

Internal Use Only 16

Thank you

17