"Japan IPv6 Measurement" by Tomohiro Fujisaki. A presentation given at the APNIC 40 IPv6 Readiness Measurement BoF and APIPv6TF sessions on Wed 9 Sep 2015.

1. Japan IPv6 Measurement
Tomohiro Fujisaki
NTT/IPv6 Promotion Council in Japan
APNIC 40
9th September 2015

2. Summary of IPv6 deployment status in Japan
! Networks
! Many fixed-line ISPs have started their
commercial IPv6 service for both enterprise and
consumer users.
! Some ISPs have been migrating their existing IPv4 only
users to dual stack environment.
! Total IPv6 Internet users are increasing.
! A few cellular carriers provide IPv6 connectivity.
! Contents
! IPv6 ready Government’s services are increasing.
! Large contents provides do not support IPv6 yet.
2

3. IPv6 readiness measurement in JP
! Core Network
! IPv6 allocated prefixes
! IPv6 penetration rate in Internet backbone
! Number of IPv6 enabled of Transit AS in BGP routing tables.
! Applications
! IPv6 penetration rate : web servers
! IPv6 servers in .jp domain
! Access Network
! IPv6 consumer service penetration rate
! Users
! IPv6 traffic to Google servers
! Products
! IPv6 Ready logo products
! Government IPv6 service
3

4. IPv6 allocated prefixes in Japan
4
http://www.vyncke.org/ipv6status/plotbgp.php?country=jp
Allocated
As of 2nd Sep 2015 (23/2/2015)
Prefixes: 709 (669)
Announced: 367 (341)
Active: 158 (155)
Announced
Active

5. IPv6 penetration rate in Internet backbone
The number of IPv6 enabled Transit AS in BGP routing
tables (as of 2nd September 2015).
http://v6pc.jp/jp/spread/ipv6spread_02.phtml
5

6. IPv6 consumer service penetration rate in Japan
! Target services:
! ISPs using NTT East & West Internet access
platform (Flets)
! For reference:
! KDDI au Hikari (KDDI)
! Chubu Telecommunication co, Inc. (CTC)
! % of IPv6 users in above services.
6

7. ! Fiber service is about 72% of the total.
Fixed Internet access service in Japan
7
http://www.soumu.go.jp/main_sosiki/joho_tsusin/kyousouhyouka/data.html
# of users in 10K
Number of subscribers in fixed broadband access
2009.3 2010.3 2011.3 2012.3 2013.3 2014.3 2014.6 2014.9 2014.12 2015.3

8. Fiber access line service share in Japan
8
• Over 50% ISPs use NTT East & West Internet access
platform (called ‘Flets’)
• NTT’s access platform supports IPoE and PPPoE to access IPv6
Internet
NTT East
NTT West
FTTH market share trends in fixed broadband access
From http://www.soumu.go.jp/main_sosiki/joho_tsusin/kyousouhyouka/data.html

9. IPv6 consumer service penetration rate in Japan
- NTT’s service platform users-
9
Provided by Akira Nakagawa
Produced from: http://v6pc.jp/jp/spread/ipv6spread2013_03.phtml
0.8%
1.4%
2.0%
2.5%
2.7%
3.2%
3.1%
3.9%
5.3%
6.1%
8.8%
0%
1%
2%
3%
4%
5%
6%
7%
8%
9%
10%
0
200
400
600
800
1000
1200
1400
1600
Number of NTT's
service User
IPv6 Ratio
Unit: 1K

10. IPv6 consumer service penetration rate in Japan
-KDDI and CTC-
10
Provided by Akira Nakagawa
Produced from: http://v6pc.jp/jp/spread/ipv6spread2013_03.phtml
55%
61% 63% 65% 66% 67%
68%
24%
29%
36%
40%
44%
48%
53%
58%
64%
70%
75%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
'12.12 '13.03 '13.06 '13.09 '13.12 '14.03 '14.06 '14.09 '14.12 '15.03 '15.06
KDDI au Hikari
CTC Comifa HIKARI

11. IPv6 traffic to Google servers
As of 1st September 2015
• This table shows the
amount of IPv6 traffic
from the major
networks (ASNs) in
Japan to Google.
• Absolute number of
IPv6 traffic is ranked
higher.
• Of the total number
of access, right-most
column shows the
proportion of the
IPv6 access.
11
Rank
Name
ASNs
IPv6
1
KDDI
2516
24.72%
2
So-net
2527
26.89%
3
SoftBank BB
17676
5.25%
4
ctc
18126
48.27%
5
OCN / plala
4713
1.76%
6
TOKAI
10010
21.73%
7
IIJ
2497
2.60%
8
@nifty
2510
2.42%
9
Sony Global Solutions
9619
99.75%
10
iTSCOM
9365
6.91%
11
NTT docomo
9605
0.26%
12
BIGLOBE
2518
0.92%
13
bit-drive
9600
10.41%
14
star cat
17529
7.55%
15
TDNC
9354
2.31%
16
SINET
2907
2.14%
17
K-Opticom
17511
0.20%
18
FreeBit
4691, 10013
0.45%
19
SuperCSI
2506
32.41%
20
VECTANT
2519
0.33%

12. IPv6 Users penetration measured by
Akamai, APNIC and Google
As of 2nd September 201512
https://www.vyncke.org/ipv6status/plotpenetration.php?country=jp

13. IPv6 penetration rate : web servers
13
The number of IPv6 enabled site in the top 500 web sites
which is published by Alexa Internet, Inc (as of 2nd Sep 2015).
http://www.inetcore.com/project/metrics/index.html.en

14. IPv6 supported .jp domain servers
! IPv6 supported .jp domain servers
14
as of 2nd Sep 2015
http://v6metric.jp/html/st04/04.php

15. IPv6 services in Governments
! Japanese governments’ service has been
implementing IPv6.
! In 34 servers:
15
29th Nov 2013 2nd Sep 2015
http://www.attn.jp/ipv6status/jp/go/ 23rd Feb 2015
2013/11/29
2015/2/23
2015/9/2
Web
32%
47%
50%
Mail
18%
26%
26%
DNS
62%
76%
76%

16. IPv6 services in Governments
16

17. Number of products with IPv6 Ready Logo (JP)
17
0
2
4
6
8
10
12
14
16
18
20
0
50
100
150
200
250
2005
2005
2005
2006
2006
2006
2007
2007
2007
2008
2008
2008
2009
2009
2009
2010
2010
2010
2011
2011
2011
2012
2012
2012
2013
2013
2013
2014
2014
2014
2015
2015
MultipleAmount
IPv6 Ready Logo Phase-2 Approval Products in Japan
Multiple
Amount
Core
Protocols
SimgleAmount

18. Summary
! In Japan, IPv6 Internet connectivity has
deployed smoothly, but need to tackle to
improve contents area.
! Recent topics in contents area:
! Apple’s IPv6 promotion on iOS： Many content
providers will be implement IPv6 in their system.
! It will also have great impact to IPv6 deployment in
mobile area (I hope).
18

19. 19
Questions?