Introduction of optical access showcase for G.epon/SIEPON

NTT Access Network Service Systems Laboratories 1 Copyright (c) 2013 NTT Corporation

September 24, 2013 Ken-Ichi Suzuki

NTT Access Network Service Systems Laboratories, NTT Corporation

Introduction of optical access showcase for G.epon/SIEPON

~ Activities for related standardization and interoperability test~

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Outline 1. Background

• Progress of optical broadband service • EPON standard and issue • System level EPON standards

2. G.epon/SIEPON standards 3. Activity for interoperability tests and optical access

showcase 4. Conclusion

NTT Access Network Service Systems Laboratories 3 Copyright (c) 2013 NTT Corporation

Progress of optical broadband (FTTH) service FTTH service based on PON system has become popular. Especially, EPON has been used widely in Japan.

’13 ’14’12’11’10’09’08’07’06’05’04’03’02

40

30

20

10

0

Fixed broadbandBroadband (Total)

FTTH

FTTH (NTT)DSL

CATV Internet

35.30

23.86

17.30

6.01

5.43

The end of Mar. 2013

The end of Mar. 2014(Forecast)

Year

The n

umbe

r of s

ubsc

riber

(Milli

on) Press materials, Ministry of Internal

Affairs and Communications ofJapan, “Quarterly data on thenumber of subscribers, etc., ofelectrical communication services inJapan”,

Over 25.0

Over 18.0

Under 5.0

Over 6.0

NTT Access Network Service Systems Laboratories 4 Copyright (c) 2013 NTT Corporation

EPON standard and issue Ethernet based PON was standardized by IEEE.

To realize 10Gbps high-speed access network Enabling broadband applications such as Bi-directional Super High Definition Video,

Remote Education, Remote Healthcare, etc. However that standardization was limited in PHY and MAC layer thus preventing

EPON interoperability.

Client Management• SNMP, IGMP, MLD, IEEE 802.1x

MAC Client• Forwarding• QoS• Priority

Control

MAC Control Client• ONU Registration• GATE Generation• REPORT Handling

OAM Client• Alarm• Surveillance

MPCP

RSMAC MAC … MAC

OAM OAM OAM…

PCSPMAPMD

MPCPMACRS

OAM

PCSPMAPMD

Client Management• SNMP, IGMP, MLD, IEEE 802.1x

MAC Client• Forwarding• QoS• Priority

Control

MAC Control Client• ONU Registration• GATE Handling• REPORT Generation

OAM Client• Alarm• Surveillance

Scope of IEEE 802.3

OLT ONUPON: Passive Optical Network

OLT: Optical Line TerminalONU: Optical Network UnitNNI: Network Node InterfaceUNI: User Network Interface

...

ONUOptical splitter

ONU

UNI

UNI

OLTNNI

Optical access network Central office

Transmission fiberDownstream: Continuous(TDM)

Upstream: Burst signal(TDMA)

Bidirectional signals were multiplexed by WDM

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System level EPON standard In order to improve EPON interoperability, a system level

EPON standardization started in IEEE P1904.1 SIEPON (Service Interoperability in EPON) WG since 2010 and it was approved in June 2013.

http://grouper.ieee.org/groups/1904/1/ SIEPON WG plans to conduct its Conformance Test and

issue Certificates (SIEPON Certificate Program). Moreover, SIEPON Package B, which is one of SIEPON

specifications based on Japan specifications, was consented as ITU-T G.epon (G.9801) in July 2013.

In order to promote EPON interoperability, HATS conference organized Optical Access Ad-hoc WG.

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Outline 1. Background 2. G.epon/SIEPON standards

• G.epon/SIEPON standards • SIEPON standard packages • Added Specifications for G.epon/SIEPON standards

3. Activity for interoperability tests and optical access showcase

4. Conclusion

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G.epon/SIEPON Standards SIEPON is a system level standard for EPON. G.epon (G.9801) is a new ITU-T Recommendation that is ITU-T version of

EPON based on SIEPON Package B and adopts Generic OMCI, which is common to various ITU-T systems, instead of eOAM.

MAC layer specifications( Ex. Frame structure)

Physical layer specifications( Ex. Transmission bandwidth)

Higher layer specifications( Ex. QoS management)

PON management( Ex. OAM)

HN management BBF TR-142 (TR-069 for PON)Service model BBF TR-156, 200 (TR-101 for PON)

G.988（Generic OMCI）

G.986(1G-P2P)

802.3av（10G-EPON）

802.3ah（GE-PON）

System level specification

Common Ethernet services

G.epon

G.987(XG-PON)

G.984(G-PON)

ITU-T Recommendations IEEE standards SIEPON

eOAM

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SIEPON standard packages

Dedicated profile for each package (Different functions for packages)

Common profile for packages (Same function for each package)

Given package supports a profile

Profile

Packaged standardizations. It is hard to realize a unified set of specifications for realizing interoperability

among existing 1G-EPON devices because there are different specifications for each vendor or carrier.

SIEPON specifies 3 specification packages However SIEPON aims to realize a hardware commoditizing in order to absorb

differences by modifications of their firmware.

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Added Specifications for G.epon/SIEPON standards

Items Main specifications Remarks Client

Management Encryption/Authentication, Protection, Power saving, Service management, System monitoring

OAM client OAM discovery, Alarm handling, Statistical information processing (Surveillance)

Surveillance and control functions

MAC client Queue control, Priority control, Policing, etc. Main signal control functions

MAC control client Bandwidth control (assignment), Report generation/handling, Gate generation/handling, Discovery control

PON access control functions

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Outline 1. Background 2. G.epon/SIEPON standards 3. Activity for interoperability tests and optical access

showcase • Intention of G.epon/SIEPON system interoperability • Optical access ad-hoc WG • Demonstration system for optical access showcase

4. Conclusion

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Intention of G.epon/SIEPON system interoperability Ensure operators to deploy G.epon/SIEPON package B compliant system under

multiple vendors’ environment. Any countries’ operators can utilize the highly matured Japanese optical access

technology for their telecommunication infrastructure.

SYSTEM LEVEL STANDARD

ITU-T G.9801 (G.epon) IEEE1904.1(SIEPON)Package-B

Experience of

Optical Access

in Japan

Your PON

System Deployment HATS

Optical Access Ad-hoc WG Pilot Test etc.

IOP VERIFICATION

under Multivendor Environment

Feedback

Optical access Ad-hoc WG Performs IOP verification under multiple venders’ environment

In order to ensure interoperability of G.epon/SIEPON compliant equipment Considers and extract issues for conducting conformance and interoperability tests in Japan. Feedbacks WG results and achievements to related standards.

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Optical access ad-hoc WG WG was established in August 2012 and plans some pilot tests before full-scale operation in order to

confirm basic connection between an OLT and ONUs under multiple venders’ environment. Performed 1st pilot test for Interoperability in February 2013 using 1:1 OLT-ONU connection configuration. Performed 2nd pilot test in June 2013 for an exhibition of ITU/APT C&I event using 1:n OLT-ONU

connection configuration.

12

2012FY 2013FY 2014FY SIEPON

G.epon

SIEPON/ Conformance

Optical Access Ad-hoc WG

D3.0 (August)

Approve (June)

D2.0(Apr.) D3.0(Oct.) Approve(Mar.)

SIEPON Certificate Program

Consent (July)

G.epon Implementers’ guide (to be proposed by TTC)

To be approved in 2014

Kick off (August)

Pilot test program (to be planed)

1st Pilot Test (February)

Before full-scale operation, WG conducts some pilot tests.

2nd Pilot test for ITU/APT C&I event

(June)

Full-scale operation of IOP test starts

IEEE P1904.1

ITU-T

HATS

Proposed (Feb.)

3rd Pilot Test (Jan~Feb)

2nd Pilot TestScene

IOP Confirmed Vendorsin 2nd Pilot Test

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Demonstration system for optical access showcase Demonstrate interoperable 10G-EPON(10Gbps) system: 3 ONUs (FUJITSU, MITSUBISHI, OKI) are connected to 1 vendor’s OLT and

the OLT will be replaced by another OLT. Data transmission will be kept even if the connected OLT is changed to

different vendor’s one.

【ONU】

FileServer

ClientPC

ClientPC

ClientPC

【OLT】

L2SW

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Outline 1. Background 2. G.epon/SIEPON standards 3. Activity for interoperability tests and optical access

showcase 4. Conclusion

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Conclusion Presented

• EPON standard and its issue • Demand for System level EPON standards

Explained outline of G.epon/SIEPON standards • Difference between G.epon and SIEPON • Some features of G.epon/SIEPON

Introduced • Our activity of interoperability tests in Japan for G.epon/SIEPON

compliant equipment under multiple venders’ environment. • 2nd pilot test for ITU/APT C&I event using 1:n OLT-ONU connection

configuration. • The demonstration system for Optical Access Showcase

HATS optical access Ad-hoc WG consider • the promotion of harmonization with related organization,

especially ITU-T/ASTAP in order to promote G.epon/SIEPON compliant system via some C&I event.

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Thank you

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Backup 1. Architecture model for G.epon/SIEPON

2. Logical connection model for G.epon/SIEPON

3. Related EPON standards

4. Formation of WG with related organization

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Architecture model for G.epon/SIEPON

802.3 layering model

802.3 client

Service specific function

802.3 layering model

802.3 client

Service specific function

OLT

ONU

Line OLT

Client OLT

Service OLT

NNI OLT_CI OLT_LI OLT_MDI

Line ONU

Client ONU

Service ONU

UNI ONU_CI ONU_LI

ONU_MDI

Coverage of IEEE Std 802.3

Coverage of ITU-T G.epon/ IEEE Std 1904.1

Line-OLT/ONU Function blocks defined by

IEEE 802.3 Client-OLT/ONU General function blocks

provided by PON ASIC chips

Service-OLT/ONU Products provided by

system vendors

NTT Access Network Service Systems Laboratories 19 Copyright (c) 2013 NTT Corporation

Logical connection model for G.epon/SIEPON

• EPON Service Path（ESP） – ESP is a unidirectional virtual

path providing a connection and “QoS” in a service.

– ESP abstracts differences between implementation such as single and multiple LLID implementation in an ONU.

EPON Service Path(ESP)

【OLT】 【ONU】

Function blocks for connectivity Function blocks for quality of service

• An example of ESP – Bidirectional unicast

Input [I]

Provisioning / Alarms & Status

Classifier [C

]

Modifier [M

]

Policer/Shaper [PS]

CrossC

onnect [X]

Queues [Q

]

Scheduler [S]

Output [O

]

[I] [C] [M] [PS] [X] [Q] [S] [O]

[I] [C] [M] [PS] [X] [Q] [S] [O]

[I] [C] [M] [PS] [X] [Q] [S] [O]

[I] [C] [M] [PS] [X] [Q] [S] [O]

DBA

ESP #1

ESP #3 ESP #4

ESP #2

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Related EPON standards IEEE P1904.1 SIEPON

Package A: System level EPON specifications for North American MSO market Package B: System level EPON specifications for Japan market Package C: System level EPON specifications for China market

IEEE P1904.1 SIEPON/Conformance Conformance 01: Conformance Test case for Package A Conformance 02: Conformance Test case for Package B Conformance 03: Conformance Test case for Package C

ITU-T G.epon (G.9801) ITU-T EPON standards based on IEEE P1904.1 SIEPON package B and ITU-T G.988

generic OMCI for EPON

ITU-T G.epon Implementers’ guide Conformance and interoperability test specification for G.epon

IEEE 802.3ah: Ethernet First Mile, Ethernet Standards for Access System including 1G-EPON PHY and MAC layer specifications

IEEE 802.3av: Optical Interfaces and PHY layer specifications for 10G-EPON

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Formation of WG with related organizations Optical Access Ad-hoc WG conducts Conformance and Interoperability Test for G.epon/SIEPON compliant

devices. WG collaborates with TTC and seeks the way to collaborate with IEEE SIEPON Certification Program in

order to create some Test cases for Conformance and Interoperability Test. WG also consider the promotion of harmonization with ITU-T/ASTAP for global promotion of

G.epon/SIEPON

21

IEEE SIEPON Certification Program

•Conduct conformance Test and issue Certificate

Vendors

A

B

C

Test lab

(No in Japan)

IOP Test Program • Conduct IOP test for SIEPON equipment

with SIPON Certificate • Create IOP test guideline • Global Promotion of SIEPN equipment

Operators

A

B

HATS Conference

Optical Access Ad-hoc WG

•Support for IOP Test •Provide Test machine •Use of Test results

G.epon Conformance and IOP test program •Conduct Conformance and IOP tests using G.epon Implementers’ guide •Creation of IOP test guideline and global promotion G.epon equipment

D

•Conduct SIEPON Conformance Test

C

SIEPON Interoperability Test

G.epon Interoperability Test

TTC

Collaboration Harmonization with ITU-T/ASTAP