ITRC16 Program
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Nov.25 (Thu) |
Nov.26 (Fri) |
Nov.27 (Sat) | |||||||||||||
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A (Net) |
B (App) |
C (BoF) |
A (Net) |
B (App) |
C (BoF) |
A (Net) |
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A211 A212 A213 |
A311 A312 A313 A314 |
B311
B312 B313 |
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Opening | |||||||||||||||
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break |
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Closing | |||||||||||||
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A112 A113 |
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B111 B112 B113
B114 |
A221 A222 A223 |
VR B222 B223 B224 B225 |
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lunch |
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A121 A122 A123 A124 |
B121 B122 B123 B124 |
C121 C122 C123 C124 |
A231 A232 A233 A234 A235 |
B231 B232 B233 |
C231 C232 C233 |
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break |
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Technical Visit to
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A131 A132
A133 A134 |
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Official Conference Dinner |
Dinner |
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Notes:
Slot label convention
Room (A|B|C) Day (1|2|3) – Time slot (1|2|3) – Presenter (1|2|3), e.g., A111
* To be determined
1100-1230
A11
Measurement
Chair: Katsushi Kobayashi , Young Seok Lee
1.
Title: "Detecting abusive traffic flows in very high-speed
networks"
Author: Tetsuya Mori (Waseda Univ)
Summary:
In
a network link with sufficient volume of traffic, a small number of abusive
traffic
flows
constructed from a large number of packets occupy a large part of whole
aggregated
traffic.
Here, traffic flows can be defined by different level of granularities; i.e.,
pairs of end-hosts,
network
prefixes, and ASes. Detecting abusive traffic flows in
various levels of granularities will
be
useful for constructing efficient and effective traffic engineering schemes.
However, in very
high-speed
networks, keeping all per-flow states for detecting particular flows is a
challenging
task.
In this work, we propose two new methods for detecting such flows efficiently.
The core
idea
of our approach is to utilize a priori / learned information of flow statistics.
We further validate
and evaluate our
approach using measured packet traces.
A11
Measurement
2. Title: "A new method for
traffic matrix estimation "
Author: Susumu
Shimozu (Waseda Univ), Shigeki Goto (Waseda Univ)
Summary:
This
presentation introduces a new method for estimating real-time traffic
matrices with
small
estimation errors. A traffic matrix
represents flows of traffic in a network. It is an essential
tool
for capacity planning and traffic
engineering. However, measurement
costs and
computational
complexity
make it difficult to calculate an
accurate traffic matrix.
There have been other
approaches which have used IP-related information to reduce the
estimation
error
and computational complexity. In contrast, our method, called spike flow
measurement (SFM)
reduces
the error and complexity by focusing on spikes. A spike is transient excessive
usage of a
communications
link. Spikes are easily monitored through SNMP
framework. This reduces
measurement
costs compared to that of other approaches.
From traffic byte counts,
SFM identifies spike flows by detecting pairs of incoming and outgoing
spikes
in
a network. Then, we build a matrix from collected spike
flows as an approximation of the
real
traffic
matrix. Our experimental evaluation
showed that the average estimation
error is 20%, which
is
small enough for the method to be
applicable to a wide range of network nodes, including Ethernet
switches
and IP routers. Now we are
conducting an experiment in Waseda's campus network core.
Results
of the experiment will be also
discussed.
A11
Measurement
3. Title:
"Analyzing of flow data with routing information between
Author: Koji
OKAMURA (
JeaHwa Lee
(KOREN/KT)
Summary: QGPOP
(as2523) and KOREN(as9270) have maintained direct BGP peer for several years and
recently
flow data are measured and the routing information are recorded by each side.
From flow
data,
we can know many thing about the traffic between
KOREN's
traffic to SINET and WIDE and KOREN transits QGPOP, SINET WIDE's traffic to many
universities
and institutes of all over
universities
and institutes of
these
data, for example, we can know the bandwidth which are used between
variation
of bandwidth. Now we pay attention that this variation may be caused by changing
the route.
In
our talk, we will show such analyzed data using flow data and routing
information and discuss about
the
traffic between
1100-1230
C11
Medical
1. Title: "Medical applications: expanding
fields and regions "
Author:
Shuji Shimizu (Department of Endoscopic Diagnostics and
Naoki Nakashima, Koji Okamura,
Young-Woo Kim, Joon-Soo Hahm, Masao
Tanaka
Summary:
As an application of next generation Internet
program between
medical
contents which need high quality images. We summarize what we have done so far
and we
will do
next.
By way of QGPOP, KJCN,
APII, and KOREN, we established big broadband network from
developed in
June 2004. As of the end of August 2004, 18 events were performed, including 8
live
surgical demonstrations and 10 teleconferences. They started with endoscopic surgery and
neurosurgery,
extending their fields to transplantation, robotic surgery and telepathology.
We used 1or 2 DVTS lines. Time delay was 0.3 sec between both ends of the
network, which was
comfortable for
communication. High quality moving images were also preserved, but noise or
sound
loss was
frequently observed, which need to be further improved. Patient privacy was
protected with
a
security program but it should be more easily and widely
available.
Our medical network is
planned to be connected to
to
countries.
C11
Medical
2. Title:
"Embryology and surgical anatomy of the h
Author:
Baik-Hwan
Cho(Department of Surgery, Medical school,
Summary:
C11
Medical
3. Title: "Progress and problem of ERCP (endoscopic retrograde cholangiopancreatography) and IDUS
(intraductal ultrasonography)
in diagnosis of pancreatobiliary diseases with
application of 3-D
reconstruction image"
Author:
Hiroyuki Konomi (Department of Surgery and
Summary:
Computer tomography (CT)
and magnetic resonance image (MRI) have been made significant
contributions in diagnosis of hepatobiliary diseases. This is mainly because these methods
have a
high density-gradient resolution as well as a
reasonable spatial resolution. ERCP is the most essential
methods to approach pancreatobiliary region by directly injecting contrast
medium into the pancreatic
and/or bile duct. Rational spatial resolution of ERCP in
the pancreatic and/or bile duct is much higher
than those of CT or MRI because it is a direct
visualized image. However it is
still difficult to detect a
small tumor in the pancreas parenchyma as far as the
tumor does not affect pancreatic duct system.
This is why we need alternative
high-resolution diagnostic methods combined with ERCP technique.
Intraductal
ultrasonography (IDUS) may be one candidate to resolve
these issues, because it must
have rationally very high resolution by high
frequency ultrasound (i.e. over 20 MHz).
Moreover, 3-D
reconstruction system combined with color Doppler blood flow
meter for IDUS has recently developed,
however there are still various problems regarding ERCP
and IDUS that may be resolved by virtual
reality techniques.
New imaging system and the
problems what we are not achieved at this stage will be
presented.
C11
Medical
4. Title:
"Cyber
lecture between
Author:
Byeong-In
Moon(Department of Surgery,
Summary:
1400-1530
A12 Ipv6
1.
Title:
"Applying
a new TCP Protocol Machine to Mobile IPv6"
¡¡¡¡Author: Heshmatollah
KHOSRAVI (
¡¡¡¡Summary: This
paper proposes a new TCP protocol machine, which monitors the
network
by flow analysis. It is a multipurpose tool. It can be used for intrusion
detection
and congestion observation. It is
used for mobile hosts as well as wired
and
stationary hosts.
In
mobile IP, the source and destination IP addresses changes during the life
of
a communication. In mobile networks, a mobile host carries two IP addresses
while
moving among networks. When we
apply the TCP protocol machine to
mobile
networks, there are two problems. This paper investigates these problems
and
proposes a solution.
TCP
protocol machine receives a sequence of TCP packets as input and classifies
them
into flows. A flow is a sequence of
packets, which has the same source and
destination
IP addresses, and port numbers.
Mobile IP allows a mobile node to move
among
networks while keeping all of its connections. When a mobile node is located
in
a foreign link, it uses two IP addresses, the home address and the care of
address (CoA). If the CoA is used, a TCP protocol mac