Session 4
Regional Seminar on Costs and Tariffs for Member Countries of
the Regional Group for Asia and Oceania (SG3RG-AO)
International Internet Connectivity
Ying Peng
Rapporteur, ITU-T SG3 IIC/TFMF
Nanjing University of Post and Telecom, China
Beijing, April 2010
Contents
 Overview of the IIC
 Internet traffic flow measurement
 Traffic flow multi-factors
 A case of traffic flow collecting and analyzing
User Centric
Data stored in the “Cloud”
Data follows you & your devices
Data accessible anywhere
Data can be shared with others
messages
preferences
news
contacts
calendar
investments
mailing lists
maps
e-mails
photo
music
phone numbers
Overview of the IIC(1/5)
Internet traffic
Source:TeleGeography
Overview of the IIC(2/5)
Internet Users
More than
One billion
The global number
Source:ITU
Overview of the IIC(3/5)
Broadband Subscribers
450
411.077
400
351.277
350
283.253
300
250
200
216.442
158
150
100
50
0
2004
2005
2006
2007
Broadband Subscribers(million)
2008
Overview of the IIC(4/5)
As to the first quarter of 2009
Overview of the IIC(5/5)
General tariff principles – Principles applicable to GII-Internet
Can we compute it?
 traffic flow
 number of routes
 geographical coverage
 the cost of international transmission
Internet traffic flow measurement (1/3)
What is AS?
What is BGP?
How can BGP help us to examine mutual
traffic flow between two ASes?
Internet traffic flow measurement (2/3)
Traffic Flow Computing Among Autonomous Systems
—D.51 Recommendation draft
It is proposed that the traffic flow element mentioned in
D.50 can be measured by using the BGP protocol, that is
to say, the traffic flow data provided by the technical
layers of BGP can be used as an element in bilateral
negotiations on IIC.
Internet traffic flow measurement (3/3)
• The border router obtains some information about the packet using BGP
of an AS.
• The net load of packet flow could be calculated.
• AS could be classified into three types: sender, receiver, or relay
• calculate the total packet flow
A case Of Traffic Flow Collecting and Analyzing(1/4)
Purpose :
Analyze the traffic flow among the ASes
A case Of Traffic Flow Collecting and Analyzing(2/4)
Detailed process :
① Configure xFlow, set the sampling ratio
② Getting BGP routing tables of the router analytical equipment, reflecting the
IP address to the AS number
③ Summarizing and calculating the traffic flow
A case Of Traffic Flow Collecting and Analyzing(3/4)
B
A
C
D
Backbone Net
R2
R1
AS1
AS2
Controller
Collector 5
Collector1 Collector2 Collector3 Collector4
Software Park Collector
AS3
A case Of Traffic Flow Collecting and Analyzing(4/4)
the traffic flow of A、B and C:
Time
Unit
Filter Name
A
B
C
Total
Flow Chart
2010-1-28 15:00
M/s
out
231.8348541
35.7558136
5.735658169
273.326355
2010-1-29 9:00
in
271.6963501
44.62129211
6.720719337
323.0385742
Sum
503.531189
80.37705994
12.45638275
596.3648071
Conclusion:
XFlow + BGP is an optional tool to measure traffic
flow among multi-AS
Thank You