ntt west’sapproach to ipv6 networking · 2017-02-06 · copyright©2005 nippon telegraph and...

CopyrightCopyright©© 2005 NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION2005 NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATIONFebruary 2February 244, 2005, 2005

APRICOT 2005@Kyoto, Japan: Conference C3APRICOT 2005@Kyoto, Japan: Conference C3--6 6

NTT WEST’s Approach to

IPv6 Networking

Ichiro MORIHARA

February 2February 244, 2005, 2005

Research and Development Center

Technology Department

Nippon Telegraph and Telephone West Corporation

February 24, 2005

2February 2February 244, 2005, 2005


CopyrightCopyright©© 2005 NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION2005 NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION

Agenda

1. Current Trends in IP System

Services

2. Current Issues in NTT WEST’s

Regional IP Network and an

Outline of the New IP Network

3. NTT WEST’s Regional IPv6

Network and its Future Plans




1. Current Trends in IP

System Services




Broadband Access Penetration in Japan

Spread of broadband access in Japan has been steadily increasing.�About 17.6 million Broadband subscribers in Japan. (September, 2004)

Spread of broadband access in Japan has been steadily increasing.�About 17.6 million Broadband subscribers in Japan. (September, 2004)

FTTH

CATV

ADSL16

14

12

10

8

6

4

2

0

18

20(Million)

Mar.2002 Sep.2002 Mar.2003 Mar.2004 Sep.2004Sep.2003

12.8

2.8

2.0

11.3

2.6

1.5

9.2

2.3

0.6

7.0

2.1

0.4

4.2

1.8

0.2

0.1

2.4

1.5

17.6M17.6M17.6M17.6M

Source:Ministry of

Internal Affairs and

Communications

No. o

f subscrib

ers




Recent Trends in IP-based Services

� IP Broadcasting Service � Broadband Content Distribution using Dedicated Appliances (STB)

� VoD and real-time IP Broadcasting services by Multicast

(ex.) 4th MEDIA Service (Plala Networks)

�HIKARI-phone (optical phone) Service� fixed-line quality VoIP service

(ex.)IP Phone services for apartment (NTT WEST/EAST)

�Home Appliances� Support for bi-directional, real-time communication between appliances via the Internet

(ex.) Validation experiment of Home Appliance connection management (NTT Communications)

Various Services Boosted Boomedare Using Inexpensive,

High-Speed Broadband Access.

Various Services Boosted Boomedare Using Inexpensive,

High-Speed Broadband Access.




2. Current Issues in NTT WEST’s

Regional IP Network and an

Outline of the New IP Network




B FLET'S

FLET'S ADSL

FLET'S ISDN

Transition of the Number of FLET‘S Subscribers

(NTT-West)

Mar.2000 Mar.2004

ADSL 47M type

B FLET'S

Wireless

2.5

2.0

1.5

1.0

0.5

0

(Million)

FLET’S

ISDN(64K)

FLET’S

ADSL

(1.5M)

B FLET’S

(100M)B FLET'S

Family 100

ADSL 24M type

ADSL 40M type

Sep.2004Sep.2000 Sep.2003Mar.2003

Sep.2002Mar.2002

Sep.2001Mar.2001

ADSL 12M type

ADSL 8M type

No. o

f subscrib

ers




Hotel etc.Station,

Airport

ＡＰＡＰＡＰＡＰ

The InternetThe Internet

Wireless Access(FLET’S Spot)

EnterprisesEnterprises

ＡＰＡＰＡＰＡＰ

・・・

Regional IP NW

(IPv4)

FLET’S ISDN/ADSL, B FLTE’S

(Fixed Access)

CUG

VPN Service(FLET’S Group)

Content Streaming(FLET’S Square) ISP1

(IPv4)

ISP1

(IPv4)

Control

Servers

IEEE802.11b

(Wireless 2.4G)

Remote Access(FLET’S Office)

Internet Connectivity(supplied by ISP)

Various FLET’S Services on the Regional IP Network

Connects up to

ISP by PPPoE

ISP2

(IPv4)

ISP2

(IPv4)

Target ISP is

selectable by

user

Video-Phone(FLET’S

Communication)





Regional IP NW

(IPv4)

ISP

Rise of delay/

bandwidth sensitive

applications

(IP/TV Phone,etc.)

Current Issues in the Regional IP Network

Bandwidth

occupied by

power-users

in the Best-

effort

environment

(P2P file-

sharing,etc.)

Drastic growth

in traffic

(Unicast traffic,

MPEG-2/4, etc.)

Data size

increasing

(file

download

etc.)

Server

Routing is not

optimized for P2P

communications

PPPoE

NAT connections

force limitations to

P2P applications

Security concerns on

Permanent connections

(Virus Infection, etc.)

Virus Infection, etc.

Mail, etc.




Expectations for the Regional IP Network (1/2)

��Application AspectApplication Aspect

�Effective transfer of massive data

�Versatile form of communications

�Improvement in security

�Provide plug-n-play functionality for

easy use

�Support variety of users and variety of

terminals




��Technical AspectTechnical Aspect

�Fixed IP address allocation

�Utilize IPv6’s broad address space

�Optimal routing for P2P communication

(not by tunneling)

�IP Multicasting support

�QoS support

(priority queuing and fair queuing)

Expectations for the Regional IP Network (2/2)




3. NTT-WEST’s Regional IPv6

Network and its Future Plans




High Quality Video Phone


Regional IPv6

NW

FLET’S HIKARI Premium

(Optical Access Only)

Content Streaming(FLET’S v6 Cast)

ISP1

(IPv4)

ISP1

(IPv4)ISP2

(IPv4)

ISP2

(IPv4)

Control

Servers

Current Services on the Regional IPv6 Network

CTUCTU

GW

STB

GW�QoS

�IP Multicast

CTU: Customer network Terminating Unit BR: Broadband Router

BR

STB

Internet Connectivity(supplied by ISP)

FLETS v6 Appli(for FLET’S ADSL, B-FLET’S )

Security Protection

• Connects up to ISP

by tunneling

• Target ISP is

selectable by user




GW

AAuthentication and address uthentication and address

allocation allocation (IPv4) by ISP (IPv4) by ISP is is

performed tperformed through the hrough the

Regional IP Network (IPv6), Regional IP Network (IPv6),

then connected to ISPthen connected to ISP--networknetwork

��Establish connection Establish connection

between ISP and users between ISP and users

by tunneling.by tunneling.

��Target ISP is selectable Target ISP is selectable

by each userby each user

� Internet Connection

The Internet

CTU

Regional IPv6 NW

Service

Platforms Connect to

NTT-WEST

provided

services via

IPv6

Technology used in the Regional IPv6 Network(1/3)

ISP

Provider1

(IPv4)

GW

ISP

Provider2

(IPv4)

Target ISP is

selectable by

user




Fairness controlFairness control

(Fair Queuing)(Fair Queuing)

Large amount of Large amount of

heavyheavy--user traffic user traffic

restricts network use restricts network use

of other usersof other users

Ensures that all users Ensures that all users

get their fair share of get their fair share of

bandwidth, even on bandwidth, even on

congestioncongestion

Technologies for SolutionsTechnologies for SolutionsNecessity (Background)Necessity (Background)

Discard Packets

Heavy User

Heavy User

� QoS: Fairness control among users


Maintain Minimum Bandwidth

Web access, file downloading,

content streaming, etc.

Congestion




Receiver

Router

Need to decrease Need to decrease

bandwidth consumption bandwidth consumption

by unicast trafficby unicast traffic

��Using IPv6 multicast, NW Using IPv6 multicast, NW

bandwidth can be bandwidth can be

effectively usedeffectively used

Technologies for SolutionsTechnologies for SolutionsNecessity (Background)Necessity (Background)

� Multicast

Multicast Multicast


�FLET’S v6 CAST•Provides a contents distribution platform, IPv6 multicast-enabled

•Content providers connect distribution servers and provide services

Server

Router

Router

Multicast

router

Multicast

router

Server

Multicast

router

Distribution

Server(owned by content

providers)

Content

Providers

NTT WEST

MulticastMulticastUnicastUnicast

IP Multicast




Overview of FLET’S HIKARI Premium

�Features

�Internet Connection

�High Quality Video-phone

�Security Features

�FLET’S v6 CAST

(multicast content distribution)

Note: Acceptance of subscription began from

December 24, 2004 (Fri), for users in service

areas. Service planned from March, 2005.




�Video phone�Low delay, high quality communications by pure IPv6.

�File transfer and Instant Message�Supports exchange of large files or instant messages directly between users

�Answering machine�leaveing voice/video messages when absent

Regional IP NW

(v6)

Regional IP NW

(v6)

CTU CTU

ServerMessage

File

Possible to

send large

files (even

when too

large

sending by

email)

Possible to leave

messages on the server

(answering service)

Pure IPv6

communication

without using PPPoE

High Quality Video phone

high quality

video/audio

phone




�Installs security tools (software) in user PCs.

�Updates (virus pattern files, etc.) performed

automatically from the Regional IPv6 Network

�Virus protection, illegal access/harmful site/spam

mail blocking and privacy protection

�Provided for both IPv4 and IPv6 communication.

Regional IPv6 NWRegional IPv6 NW

CTU

The InternetThe InternetMail,etc.

Protects from

virus infection,

etc.

Virus Infection, etc.

Security Features




�Subscriber optical line is shared by multiple users

�Maximum speed: 100Mbps (bidirectional)

�Optical section planned to upgrade to 1Gbps

(1000Mbps).

Customer network

Terminating Unit

(CTU)

Line

Termination

Unit

Regional

IPv6

Network

NTT WEST

Optical

Splitter

Optical Splitter

Center

terminating

unit

Best Effort, max.100Mbps

(shared by multiple users)

Provider

Internet

Bandwidth design of FLET’S HIKARI Premium




�FLET’S v6 Appli� Optional service of B FLET’S and FLET’S ADSL

� Add IPv6 connectivity to the current FLET’S access line services

� Same application provided as FLET’S HIKARI Premium

� Service started in limited areas from December 24, 2004

Regional IPv6 NWRegional IPv6 NW

Security Video PhoneContent

Streaming

BR

STB

FLET’S ADSL / B FLET’S User

Reliable

Security

High Quality

Video phone IP broadcasting

on TV

Providing IPv6 Applications to Current FLET’S Access




Future of NTT WEST’s Regional IPv6 Network

� As a carrier, we take a proactive approach in realizing a genuine wide area IPv6 network

�Scalability, Security, and Wide Bandwidth

� Provide various services such as content streaming, video communication and IP phones, utilizing the QoS control functions

�End-to-End quality control

� Obtain a secure communication environment for company and home networks using IPv6 technology

�CUG, Mobile IP

Reliable, Safe, Trustworthy

Expansion of new network services




�Overview

Appendix:QoS-enabled Content Streaming Experiment

�Term: February to May 2004

�Target Area: Osaka city (excluding a part of the region)

�Number of Monitors: approx. 350 (limited to B-FLET’S subscribers)

�Streaming type:

�VoD unicast (more than 300 titles in total) ,Broadcasting

retransmission by multicast (9ch)

�MPEG-2 TS 4Mbps

Regional

IPv6

Network

��System OverviewSystem Overview

B FLETB FLET’’SS

�IP multicast enabled

�Fair control, priority control enabled

VOD

Streaming

server

Digital_IRD

Streamer

Distribution CenterCan connect to ISP Can connect to ISP

simultaneouslysimultaneously

AV AV

cablecable

TVTV

Custom STBCustom STBLAN LAN

cablecable

Remote controlRemote control

ONUONU HUBHUB

23




Thank you for your kind attention.


ntt west’sapproach to ipv6 networking · 2017-02-06 · copyright©2005 nippon telegraph and...

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