Topologies

1
Digital Divide

• Santoro
• UERJ -BRAZIL

• Introduction
• Topologies
• Extracts from AMPATH Valdivia Group Report
• Questionnaire / Responses
• General Considerations Type of Problems
• Suggested Solutions

2
I - Introduction
The history of each network appear in the present
situation. ( Distribution of Bandwidths ) WHY to
investigate the Digital Divide? For High Energy
Physics, If we want to get a Grid architecture to
work in the LHC experiments, including the
collaborators of the present experiments, we
have to have a minimum of the compatibility of
the links. We have used in this report (up to
now) the Terena Compendium Information from
Valdivia Group and responses from our own
questionnaire.
3
II - Topologies
4
Bandwidths From 45 Mbps to 2 x 2.5 Gbps
5
A topology map of the Internet Initiative
Japan(III) backbone, the largest data network in
Japan
ASIA REGION
MBPS
To NSPIXP 1.5
To NSPIXP2 100
To NY-NAP US Pennaken
Kita Kjustu
Hiro Shima
Oka yamja
tyama
West Tokyo
Serdnl
Sapporo
Kyoto
Kobe
IIJ NY NOC
1.5
45
5 x 2
3
3
3
5
3
3
1.5
To Wide 1.5
To Wide 1.5
To DIX US PaloAlto
155
5
Tokyo
Osaka
Fuku oka
45
45
Korea
512k
768k
5 x 2
Nagoya
Hama mtsu
45
Taiwan
1.5
To AIH 100
Tp MAE-WEST US San Jose
Hong Kong
Kuma moto
Yoko hama
Thai land
To Wide
Malay sia
Indo nesia
Singa pora
6
(No Transcript)
7
(No Transcript)
8
Bahia
São Paulo
Rio Grande do Sul
9
FINLAND Norway Sueden
155 Mbps
2.5 Gbps
10
CROATIA
11
Yugoslavia
12
HUNGARY
13
CZECH
14
One of the most homogeneous bandwidth
distribution
15
(No Transcript)
16
(No Transcript)
17
(No Transcript)
18
This is the topology of the Brazilian National
Network for Research showing a strong Digital
Divide Problem
19
If you go to the web page of this Network and in
this Map, you can click the lines or places and
you get the result of the trafic.
Look this table

20
NRENs National Research and Education Networks
TEN-155 backbone
Highest Capacity of European Links of NRENS in
Mbps June 2001
21
National Research and Education Networks
GEANT backbone
Highest Capacity of European Links of NRENS in
Mbps June 2001
22
Capacity of the Highest European Link of NRENs
23
Extracts from AMPATH Valdivia Group Report
We have a lot of information but not for Digital
Divide conclusion. Bandwidth rates it is
necessary to know. Perhaps the most important
information for today is Countries having
groups working in HEP-Collaborations Brazil
Fermilab, CERN, Argentina Fermilab,
CERN, México Fermilab, CERN Colombia
Fermilab Equator Fermilab Bolivia
Cosmic Rays (only?) Other countries still not
have good information.
24
Questionnaire / Responses
Table I Respondents
Remark Respondents are Network Administrators
and HEP physicists.
25
Table II - Connection Status
(1) Internal problems. Obsolete technology,
router problems, networking equipment,
intercampus connection (2) Regional and National
problems. Last / first mile problem. Last 1000
miles problem. Network /POP Hierarchy connection
/ bandwidth problems (3) International connection
/ bandwidth
26
Table III - Connection details
27
Tabel IV - Other networking needs
28
Table V - Most relevant networking related
problems
The most relevant Networking related problems
are Internal Networks, Last mile connections,
Financial Support, and too low bandwith and/or
quality.
29
Table VI - Presented ideas for prospective
solutions
Better funding, upgrades, are the main proposals
30
Table VII - Present Computing Facilities
Dedicated to HEP A-Mainframe, Clusters, LAN,
Networked CPUS
31
B-Firewall, WAN, Hops, Financial Support
No answer
32
General Considerations
How ones network capabilities affect the ability
to Do Science?
What are the common problems? Type of Problems
Long Mile Connection, Last Mile Connection,
Security, ....
Suggested Solutions
To know better the problems like
-Institutional Problems Internal Networks, old
equipments,... -Last mile connection
Institution to Network To discuss a possibility
to present the problem to ONU and/or OEA or to a
compatible organization and suggest solutions
IF we want that GRID work beyond Europe, USA and
some Region of Asia then we have to investigate
at least the Institutions collaborating with
HEP and try to get a minimum required for their
needs.
33
IEEAF Update Pacific Rim Networking
Meeting Honolulu, Hawaii - 2002 Dr. Donald R.
Riley Chair, IEEAF- Vice President and
CIO University of Maryland, College Park
The next set of slides comes from
CENIC2000 Internet2 and Global Development Instit
utional Impact Michael McRobbie Vice President
for Information Technology and CIO Indiana
University
34
(No Transcript)
35
(No Transcript)
36
(No Transcript)
37
(No Transcript)
38
(No Transcript)
39
(No Transcript)