A presentation given at the IPv6 Readiness Measurement BoF & APIPv6TF session at APRICOT 2015 on Wednesday, 4th March 2015.

1. Japan IPv6 Measurement
Tomohiro Fujisaki
NTT/IPv6 Promotion Council in Japan
APRICOT2015/APNIC 39
4th March 2015

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

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

4. IPv6 allocated prefixes in Japan
4
http://www.vyncke.org/ipv6status/plotbgp.php?country=jp
Allocated
Allocated and announced
Allocated and alive
as of 23rd February 2015
As of 23rd Feb 2015
Prefixes: 669
Announced: 341
Active: 155
Allocated
Announced
Active

5. IPv6 penetration rate in Internet backbone
The number of IPv6 enabled Transit AS in BGP routing
tables (as of 23rd February 2015).
http://v6pc.jp/jp/spread/ipv6spread2013_02.phtml
5

6. IPv6 consumer service penetration rate in Japan
n Target services:
n ISPs using NTT East & West Internet access
platform (Flets)
n For reference:
n KDDI au Hikari (KDDI)
n Chubu Telecommunication co, Inc. (CTC)
n % of IPv6 users in above services.
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7. Fixed Internet access service in Japan
n Fiber service is about 72% of the total.
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From http://www.soumu.go.jp/main_sosiki/joho_tsusin/kyousouhyouka/data.html
# of users in 10K
Number of subscribers in fixed broadband access

8. Fiber access line service share
8
• About 70% 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
9
http://v6pc.jp/jp/spread/ipv6spread2013_03.phtml
Flets Hikari Next
Reference
# of IPv6
subscribers
# of total
subscribers
percentage of
IPv6 users
KDDI au
Hikari
CTC Comifa
Hikari
Dec-12
67,000
8,127,000
0.80%
55%
24%
Mar-13
121,000
8,595,000
1.40%
61%
29%
Jun-13
182,000
9,094,000
2.00%
63%
36%
Sep-13
235,000
9,506,000
2.50%
65%
40%
Dec-13
287,000
10,741,000
2.70%
66%
44%
Mar-14
357,000
11,301,000
3.20%
67%
48%
Jun-14
426,000
13,588,000
3.10%
68%
53%
Sep-14
613,000
15,805,000
3.90%
99%
58%
Dec-14
854,000
16,122,000
5.30%
Completed
64%

10. Name
ASNs
IPv6
1
KDDI
2516
22.26%
2
So-net
2527
20.25%
3
ctc
18126
45.11%
4
SoftBank BB
17676
3.02%
5
TOKAI
10010
21.01%
6
OCN / plala
4713
0.73%
7
IIJ
2497
2.43%
8
Sony Global Solutions
9619
99.53%
9
iTSCOM
9365
6.22%
10
bit-drive
9600
10.11%
11
BIGLOBE
2518
0.60%
12
TDNC
9354
3.96%
13
NTT docomo
9605
0.15%
14
@nifty
2510
0.59%
15
star cat
17529
10.22%
16
Keio University
38635
51.73%
17
SINET
2907
2.39%
18
K-Opticom
17511
0.26%
19
UCOM
17506
0.26%
20
FreeBit
4691, 10013
0.28%
IPv6 traffic to Google servers
As of 23rd February 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.
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11. IPv6 Users penetration measured by
Akamai, APNIC and Google
As of 23rd February 201511
https://www.vyncke.org/ipv6status/plotpenetration.php?country=jp

12. IPv6 penetration rate : web servers
12
The number of IPv6 enabled site in the top 500 web sites
which is published by Alexa Internet, Inc (as of 23rd February
2015).
http://www.inetcore.com/project/metrics/index.html.en

13. IPv6 supported .jp domain servers
n IPv6 supported .jp domain servers
13

14. IPv6 services in Governments
n Japanese governments’ service has been
implementing IPv6.
n In 34 servers:
14
29th Nov 2013 10th Sep 2014
http://www.attn.jp/ipv6status/jp/go/ 23rd Feb 2015
2013/11/29
2014/9/10
2015/2/23
Web
32%
44%
47%
Mail
18%
20%
26%
DNS
62%
64%
76%

15. IPv6 services in Governments
15

16. Number of products with IPv6 Ready Logo (JP)
16

17. Summary
n In Japan, IPv6 Internet connectivity has
deployed smoothly, but need to tackle to
improve contents area.
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18. 18
Questions?