IPv6 in Japan
Lorenzo Colitti, Erik Kline
IPv6 Summit 2013

Google Confidential and ProprietaryWorld IPv6 Launch

Google Confidential and ProprietaryReal impact on whole ecosystem●World IPv6 Launch participants
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Real traffic○●

Comcast: "IPv6 enabled users see up to 40% of traffic on IPv6"

Real deployments○○●

3000+ websites
60+ ISPs
4 home router vendors

everywhere around the world
on every access technology

IPv6 content now widely available○○

Global: 23% of Alexa top 500, 30% page views IPv6-readyJapan: 8% of Alexa top 500, 24% of page views IPv6-ready■Sources: Cisco [1, 2], Lars Eggert

Google Confidential and ProprietaryIPv6 worldwide

Google Confidential and Proprietary

Global IPv6 growth● > 1% of Google users has IPv6 today● Growth: 2.8x per year in 2012 (above IPv4 growth)● S-curve projection: 10% in ~3 years, 50% in 6 years
Google Confidential and ProprietaryIPv6 around the world

IPv6 works●●●IPv6 impacted, few users

IPv6 impacted, many users

Most IPv6 deployments in the US and Europe
Some countries have issues with IPv6 reliability
Google publishes a list of networks we do not enable IPv6 for○ Allows website operators to avoid enabling IPv6 in impacted networks
Google Confidential and Proprietary

Top 5 countries by IPv6 deployment

RomaniaFranceJapanUSA
Germany

Japan currently #3 with USA, but USA and Germany growing faster
Source: Eric Vyncke
Google Confidential and ProprietaryIPv6 in Japan

Google Confidential and ProprietaryIPv6 adoption in Japan● Adoption depends on market segment● Each market segment faces a different set of challenges● Will look at each segment individually● Data comes from measurements on various Google properties○Methodology published at www.worldipv6launch.org/measurements

Google Confidential and ProprietaryWireline, FLETS Hikari
Technically supported, but challenging

Google Confidential and ProprietaryIPv6 on FLETS Hikari● Very large IPv6 deployment, but closed network● Fallback problem is a challenge, even with workarounds● IPv6 on NGN technically possible, but unattractive to ISPs
○IPv6 IPoE■■○

Reduced competition opportunities● May be fixed by increasing number of VNEs
Cost issues● Not yet addressed

IPv6 PPPoE■■

Requires implementation of adapter functionality
Cost issues● Currently, no options for IPv6 on B-FLETS (~60% of users)

Google Confidential and Proprietary

Fallback problem

Source: APNIC 32 meeting, 2011-08 [slides]
Google Confidential and Proprietary

Workaround: AAAA filtering● The majority of FLETS ISPs now filter out AAAA records○○○

Doesn't solve the underlying problem
Blocks DNSSEC deployment
Disables measurements, so impossible to know when to stop filtering% connection failure

World IPv6 Day

World IPv6 Launch

A major Japanese FLETS ISP
Google Confidential and Proprietary

Can cause collateral damage"Fallback problem"
solved% connection failure

All IPv6disabled% IPv6 native

Google Confidential and Proprietary

Not just Japan% connection failure

A major ISP in Greece

Google Confidential and ProprietaryIPv6 on FLETS Hikari: SoftBank BB (IPoE)

Joined World IPv6 Launch in late 2012
> 1% IPv6
Mitigates cost issue by tunneling IPv4 over IPv6 (provides CPE)
Google Confidential and ProprietaryWireline, non-FLETS Hikari
Substantial IPv6 adoption

Google Confidential and ProprietaryNon-NTT FTTH: KDDI

Joined World IPv6 Day in 201110-15% IPv6Google Confidential and ProprietaryNon-NTT FTTH: Chubu Telecommunications

Joined World IPv6 Launch in 201210-15% IPv6 and growing
Google Confidential and Proprietary

Cable: MediaCat (CNCi)

Joined World IPv6 Launch in 201210-15% IPv6 and growing
Google Confidential and ProprietaryMobile networks (3G/4G)
Technically supported, but very little usage

Google Confidential and ProprietaryIPv6 on Mobile● LTE networks support IPv6, but very little adoption in Japan● NTT docomo○○○

Supports IPv6 on LTE network, but opt-in
Official support only on three devices
No support on phones● au○○Supports IPv6 on LTE, but not on iPhone/iPad
Very little adoption● SoftBank○

Not supported by network?

● eAccess○Not supported by network?
Google Confidential and Proprietary

Android IPv6 support depends on carrier...

Verizon Wireless (USA)NTT docomo
Samsung Galaxy S III Samsung Galaxy S III(SCH-I535)(SC-06D)
IPv6 on LTE (~95%)
No IPv6 on LTE

au KDDI
Samsung Galaxy S III(SCL21)No IPv6 on LTE
Google Confidential and ProprietaryIPv6 on LTE: Verizon Wireless (USA)

~25%●
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>90% of Android 4.x traffic over IPv6
~40% of Youtube videos streamed over IPv6~70% of IPv6 traffic is from Android
Google Confidential and ProprietaryJapan IPv6 Launch?

Google Confidential and Proprietary

Providing data to IPv6 adoption SWG to help organize

Google Confidential and Proprietary