1. Network Neutrality In Japan
Toshiya Jitsuzumi, Kyushu university
Prepared for 2013 APrIGF SEOUL

2. Summary of the status quo

3. Restrictions on broadband usage
• No restrictions on downloading
• Possible restrictions on uploading if it is
equal to or over 30GB per day
• Transmission speed will be reduced to up to
128kbps once your monthly usage exceeds
7GB, unless you pay 2,625yen for each 2GB.
• P2P file exchange transmissions, such as Winny or Share, may be throttled
during peak hours.
• Mobile access will be slowed down to up to 128kbps, once a monthly usage
exceeds a certain limit. When the last 72 hour usage exceeds a certain limit,
the transmission will be throttled, too.

4. Increasing pressure on the Japanese backbone
0.0
200.0
400.0
600.0
800.0
1,000.0
1,200.0
1,400.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Gbps
Time of the day
Traffic over the Japanese Internet Backbone
Nov. 2012
Nov. 2011
Nov. 2010
Nov. 2009
Nov. 2008
Nov. 2007
Source: MIC (2013)

5. Congestion and degraded QoS
Source: MIC (2007)
25.6%
27.2%
24.0%
35.4%
51.3%
44.3%
46.0%
65.5%
60.2%
0% 10% 20% 30% 40% 50% 60% 70%
Japan (Nov. 2009)
Japan (Jan. 2011)
Japan (Mar.-Apr. 2012)
Japan (Mar. 2013)
US (2009, average)
US (2009. median)
UK (May 2010)
Australia (2008Q4)
Ireland (2008)
Actual DL speed / Maximum DL speed
Source: Jitsuzumi (2013)

6. In the eyes of an economist, the core of the problem is…
Source: http://www.inquisitr.com/94393/2011-net-
neutrality-a-couple-of-misconceptions-and-realities/

7. Need for Consumer Education
ISP Sommelier
Independent QoS
evaluation

8. Net Neutrality and Internet Governance
Governments
Business
Tech. elite
Civil
society
Innovate without
permission
&
Consumers
in general

9. Network Neutrality In Japan
Toshiya Jitsuzumi, Kyushu university
Prepared for 2013 APrIGF SEOUL ISBN-10: 4326503785
ISBN-13: 978-4326503780