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DPoE™, DPoG™, and other

PON Activities

Joint SIEPON/BBF Meeting Louisville, CO

Curtis Knittle

June 26, 2014

Access Networks for Business Services

• Motivation for PON access networks

Slide 2

DOCSIS PON P2P Fiber

Latency Poor Good Great

Jitter Poor Good Great

Upstream bandwidth Poor Great Great

Downstream bandwidth Good Great Great

Symmetric Poor Great Great

Cost $ $$$ $$$$$$

SLA Enforcement Poor Great Great

DOCSIS Provisioning of EPON (DPoE™)

• Brings the mature systems and business processes of the DOCSIS OSS to EPON access

networks

• Enables full vendor/equipment interoperability – similar to CMTS and Cable Modems

• Leverages existing technical and customer care knowledge base, systems, and processes

• Developed by MSOs, CableLabs, and vendors

Slide 3

DPoE Specifications

• Version 1.0

– Internet Protocol v4 (IPv4) – Ethernet Private Line – IP High Speed Data (IP(HSD)) – interoperable extended OAM – configuration file provisioning

• Version 2.0

– Internet Protocol v6 (IPv6) – Ethernet (Virtual) Private Line – Ethernet (Virtual) Private LAN – Ethernet (Virtual) Private Tree – IP Multicast – MPLS/BPG/LDP – IEEE 1588v2 Time Synchronization – IP Detail Record (IPDR) – Service OAM – Metro Ethernet QoS parameters

• Extensions to v2.0 are being discussed with more focus on residential

Slide 4

DPoE Architecture

• Each registered ONU has a corresponding virtual cable modem (vCM) which acts as an IP proxy for the ONU

• vCM then configures/manages the ONU using extended OAM (eOAM)

Slide 5 Video Phone Internet

DOCSIS

Provisioning

ODN

DPoE System (OLT)

ONU

ONU

IP

Network

vCM

vCM

OLT

IP Management eOAM

“Cable Modem”

“Cable Modem”

Mapping DOCSIS Concepts to EPON

Slide 6

Ethernet interfaces

are the same as in

DOCSIS, including

the concept of

Cable Modem

Interface Mask

(CMIM)

Service flows (a well-known

DOCSIS concept) “carry”

frames and are configured

with a QoS

L2VPN spec used to

define 802.1ad,

802.1ah tags and

TPID translations

Additional

classification fields

are defined for DPoE

Networks due to layer

2 emphasis, but the

concept remains the

same

LLIDs are similar

to SIDs and are

scheduled by the

DPoE System for

upstream

transmission

Port 1

Fib

er (to

PO

N)

D-ONU

Port 2

Port 3

SF1

SF2

SF3

SF4

En

cap

su

latio

n

LLID4

LLID3

LLID2

LLID1

LL

ID M

ap

an

d Q

oS

Cla

ssific

atio

n

Port 4

2G-EPON

• 2 Gbps downstream was already “standardized” in Chinese specifications

• An Engineering Change (EC) to DPoE specs will specify the method in detail

Slide 7

Dow

nstr

eam

Band

wid

th

5

10

1st Gen

EPON GPON

2nd Gen

EPON GPON

Up

str

ea

m B

an

dw

idth

1st Gen

EPON GPON

2nd Gen

EPON GPON

5

10

DPoE Certification Testing

• DPoEv1.0

certification testing

began in July 2012

• Five (5) ONUs, four

(4) DPoE Systems

successfully certified

(so far)

DPoE Specification Validation Continues

Slide 8

DPoE System (OLT)

• DPoEv2.0 Interop events to begin June, 2014

• DPoEv2.0 certification testing to begin Q42014

ODN

DPoE – Next Steps

• V2.0 Interop events in 2014

– Interop #1 :: June, 2014 • Improving chip diversity

• 10G interop testing

• Includes new IP(HSD) requirements

– Interop #2 :: August, 2014 (??)

• V2.0 qualification testing

– ~Q4 2014 or Q1 2015

Slide 9

DOCSIS Provisioning of GPON (DPoG)

• Comcast-lead effort converted DPoE specifications to support GPON

• Directly mirrors the DPoE requirements, except where underlying technologies differ, such as Logical Links versus GEM Ports

• DPoGv1.0 specifications support only IP High Speed Data (IP(HSD)) services for residential or business deployments

Specifications for IP High Speed Data using GPON technology

Slide 10 Macro Project M-005 / Project N-020

DPoE Specs MULPI

SEC

OSSI

ARCH

DPoG Specs MULPI

SEC

OSSI

ARCH

DPoG Architecture

• Each registered ONU has a corresponding virtual cable modem (vCM) which acts as an IP proxy for the ONU

• vCM then configures/manages the ONU using extended OAM (eOAM)

Slide 11 Video Phone Internet

DOCSIS

Provisioning

ODN

DPoG System (OLT)

ONU

ONU

IP

Network

vCM

vCM

OLT

IP Management eOAM

“Cable Modem”

“Cable Modem”

Mapping DOCSIS Concepts to GPON

Slide 12

Ethernet interfaces

are the same as in

DOCSIS, including

the concept of

Cable Modem

Interface Mask

(CMIM)

Service flows (a well-known

DOCSIS concept) “carry”

frames and are configured

with a QoS

L2VPN spec used to

define 802.1ad,

802.1ah tags and

TPID translations

Additional

classification fields

are defined for DPoG

Networks due to layer

2 emphasis, but the

concept remains the

same

TCONTs and

GEM ports

replace LLID and

SID

Fib

er (to

PO

N)

D-ONU

SF1

SF2

SF3

SF4

En

cap

su

latio

n

GE

M M

ap

an

d Q

oS

Port 4

TCONT1

TCONT2

TCONT3 C

lassific

atio

n

Port 1

Port 3

Port 2

GEM1

GEM2

GEM3

GEM4

Common Architectures/Interfaces

• DPoE/DPoG solutions look identical for a reason

– For either flavor of PON to get deployed, they need to have the same northbound and southbound

interfaces and functionality as back office requires

• DOCSIS provisioning today, NFV/SDN tomorrow

Expanding Network Tool Chest

Slide 13

Video Phone Internet

DOCSIS

Provisioning

DPoG (GPON) Network

ODN DPoG

System (OLT)

ONU

ONU

ONU

DPoE (EPON) Network

ODN DPoE

System (OLT)

ONU

ONU

ONU

DPoE-NG Network

ODN

ONU

ONU

ONU

DPoE’ System (OLT)

DPoG-NG Network

ODN DPoG’ System (OLT)

ONU

ONU

ONU

IP

Network

Two Parallel PON Activities

Slide 14

- Not the best scale

- Not the most efficient

- Still a lot to leverage!

What We Really Need…

Slide 15

2.5Gbps

1.2Gbps

1.0Gbps

1.0Gbps

10Gbps

10Gbps

10Gbps

2.5Gbps

Slide 16

Mission

To facilitate a single global passive optical

network standard which meets the future needs of

service providers worldwide

One Wireless

• For the first time in ~20 years (since analog) mobile standards have converged into a single worldwide standard (LTE)

• Resulting in a large device ecosystem with excellent economics and selection Slide 17

*Courtesy Tim Burke – Liberty Global

One Wireless Pricing and Timing

Slide 18

*Courtesy Tim Burke – Liberty Global

OnePON Progression

Slide 19

No

ove

rla

p

Sa

me

P

HY

Same wavelengths,

power budgets,

wavelength spacing

ON

U C

on

fig

&

Ma

na

ge

me

nt

Easy and

extensible

Fra

min

g

Transporting

only Ethernet

frames, use

Ethernet framing

MA

C

Discovery,

registration,

bandwidth

allocation

On

eP

ON

Fiber Deep Strategy Map

• MSO strategies for pushing fiber deeper will vary depending on FTTH and IP video timelines, and of course, investment timeline

Slide 20 Video Phone Internet

DOCSIS

Provisioning

IP

Network CCDN

ODN

DPoX System (OLT)

CMTS

eQAM

RF

Combine

Tx

Rx

Digital Optics Hub

Analog Optics Hub

Home

Network

RFoG (+PON)

Distributed

Wireless/Coax

Solutions

FTTN

In-Building

Solutions

What’s Next?

• DPoE Specs

– ATP development and validation

– DPoEv2.0 interoperability testing

– DPoEv2.0 qualification testing

• DPoG Specs

– DOCSIS PON IPR pool

– Specification development

– Interoperability testing

Opportunities for Engagement

Slide 21

• Fiber Deep

– Provisioning and management

– SDN and virtualization applications

– Fiber installation, connectors,

prefab

– Optical modulation improvements

– Network topologies

• OnePON™ Initiative

– Service provider / vendor meetings

– Establish key tenets

– Engage operators, SDOs