2009/1 - Institut für Telematik

During the last winter term 16 students participated in a semester project that aimed at giving students practical insight into the design and
development of internet protocols. The students
worked in separate groups where they were asked
to design a protocol independently from one an2009/1
other to manage Happy Hour offerings of surrounding restaurants and bars, specify the final
protocol team-wide afterwards, and finally implement it in each team accordingly. During the
interop-test (Fig. 2) at the Institute of Telematics some inaccuracies of the underlying speciOverSim framework was awarded as best
fication could be identified and implementation
communication software by the GI/ITG
errors eliminated so that the final specification
Fachgruppe KuVS
could be published later as an informal InternetDraft.
Telematik
Newsletter
News
15.03.2009 Martin Röhricht [email protected]
G-Lab experimentaly facility put into operation
Figure 1 KuVS prize winner
The GI/ITG Fachgruppe KuVS has awarded the
Overlay Framework OverSim with the “KuVS
Communication Software” prize (Fig. 1). The
prize is awarded as part of the KiVS conference to innovative software for use in communication and distributed systems. OverSim
is used for rapid prototyping and evaluation
of novel overlay protocols. The framework is
released on http://www.oversim.org/ as open
source project.
http://www.oversim.org/
06.03.2009 Ingmar Baumgart [email protected]
Telematics student’s term project
Figure 3 G-Lab experimentaly facility put into
operation
Figure 2 Telematics student’s term project
As part of the G-Lab project funded by the
BMBF a new national research network is build
to study novel Internet technologies. For this
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Telematik Newsletter 2009/1
purpose the Insitute for Telematics has put a
cluster of 25 Sun Fire X4150 servers connected
by a Cisco Catalyst 4500 switch into operation
(Fig. 3). The local facility is connected to 5 additional sites and forms a large distributed cluster
consisting of over 170 nodes.
of the entries in the routing tables. Promising
approaches try to dissolve the duality of the Internet addresses. An IP address identifies not
only an end-system to communicate with, but
also the location where the system is connected
to the Internet. This property causes problems
30.03.2009 Ingmar Baumgart [email protected]
with mobility, multi-homing, and traffic engineering and causes negative impact on the worldwide routing tables. At the workshop various
aspects of potential identifier/locator split approaches for a future internet were discussed
intensively. Main focus was on future requireE-Energy Conference of the Münchner
ments and possibilities of such a split. Results
Kreis
from the workshop were presented and discussed
at an IRTF routing research group meeting that
was held at the 74th IETF Meeting in San Francisco.
http://www.dagstuhl.de/de/programm/kalend
er/semhp/?semnr=09102
Conferences & Workshops
01.03.2009 Dr. Roland Bless [email protected]
SIMUTools Conference and OMNeT++
Workshop 2009
Figure 4 The E-Energy conference organized
by the Münchner Kreis in Berlin
Organized by the Münchner Kreis, a conference dedicated to the highly emergent topic “EEnergy” was held on the 22nd and 23nd of January 2009 in Berlin (Fig. 4). During the conference, the 6 recently initiated projects funded by
the BMWi were presented as well as their goals
and major points of focus. Afterwards, the conference’s 150 participants, Peter Baumung from
the ITM among them, discussed the future and
potential as well as the risks of a widely deployed
information and communication technology for
increasing the efficiency of the generation and
the use of electric power.
23.01.2009 Dr. Peter Baumung [email protected]
From 2nd to 6th of March 2009 the 2nd International Conference on Simulation Tools and
Techniques (SIMUTools) and the colocated 2nd
International Workshop on OMNeT++ took
place in Rome, Italy.
The conference includes a wide variety of talks from different
fields of simulative modeling and evaluation.
Thomas Gamer presented a simulation environment that is based on the simulator OMNeT++
and is well suited for the simulative evaluation of large-scale attack detection in the Internet. The presented environment consists of the
tools ReaSE (http://www.tm.uka.de/ReaSE)
and Distack (http://www.tm.uka.de/Distack).
ReaSE generates realistic basic conditions for
the simulations whereas Distack facilitates an
easy integration of actual attack detection mechanisms into simulations.
http://www.tm.uka.de/Distack
http://www.tm.uka.de/ReaSE
02.03.2009 Thomas Gamer [email protected]
Dagstuhl Perspectives Workshop “Naming and Addressing in a Future Internet” Visiting the “Kommunikation in verteilten
Systemen” (KiVS) 2009
At the beginning of March researchers, developers, and engineers met at Schloss Dagstuhl to As in the past years, the Institute of Telematics
discuss various aspects related to “Naming and had a strong presence at this year’s “KommuAddressing in a Future Internet” in a Dagstuhl nikation in verteilten Systemen” (KiVS) conferperspectives workshop.
Background of this ence and its related workshops. Held in Kasmeeting are the raising scalability concerns of sel (Germany), the event featured presentations
the global Internet routing system, i.e., the cur- of Jochen Furthmüller, Christoph Mayer, Chrisrent practices lead to a non manageable increase tian Hübsch and Peter Baumung, who each pre-
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Telematik Newsletter 2009/1
sented recent results on communication in sensor
networks, security for the internet of things, optimizations for wireless overlays and P2P-based
real-time games.
http://www.kivs09.de/
02.03.2009 Dr. Peter Baumung [email protected]
KiVS Workshop on Overlay and Network
Virtualization
as member of the institute of Telematics. The
meeting was well attended with 1186 participants. Topics that were discussed at the various
working group meetings and BOFs were strategies to cope with the increasing IPv4 address
scarcity, if IPv6 cannot be used as an alternative. Controversial discussions were held on the
topic of NAT for IPv6 as a solution for currently
unsolved practical problems with IPv6 deployment. There was, however, no consensus that
NAT for IPv6 is the right solution for these open
problems. So far IPv6 was eventually seen as a
way to get rid of NAT gateways and their associated problems, so that transparent end-toend communications are reintroduced. Further
meetings of IRTF research groups were also held
in San Francisco, e.g., Peer-to-Peer, Delay Tolerant Networking and a BOF for a potential new
research group on network virtualization.
https://datatracker.ietf.org/meeting/74/materi
als.html
On March 6th, 25 participants of a Workshop on
Overlay and Network Virtualization met in Kassel in conjunction with KiVS 2009.The workhop
was co-chaired by Roland Bless of the Institute
of Telematics. Several invited talks and submitted papers were presented and discussed in order
to exchange problems, existing solutions and future research topics in this area. The workshop
was closed with an interesting and controversial
panel discussion. There was high interest in a
sequel workshop on the topic.
http://www.net.informatik.uni-goettingen.de/n 22.03.2009 Dr. Roland Bless [email protected]
vws
06.03.2009 Dr. Roland Bless [email protected]
Private Meeting of the Institute at Schloss
Dagstuhl
Figure 5 Private Meeting of the Institute at
Schloss Dagstuhl
This year’s private meeting of the Institute of
Telematics staff members was held from 11.–
13. March (Fig. 5). During these days at
Schloss Dagstuhl the participants presented current research and graduation work. In addition,
valuable discussions and working meetings with
the topics future Internet, wireless sensor networksoverlay networks, service composition, and
security complemented the private meeting.
11.03.2009 Thomas Gamer [email protected]
74. IETF-Meeting
Guests & Visits
Overlay projects were presented to external guests
In the first quarter of the year 2009 three visits of
external guests took place, to which the Institut
presented the complete spectrum of work within
the areas of overlay and peer-to-peer (P2P) networks. The series of visits were opened on
01/14 by Professor Jörg Liebeherr of the University of Toronto, which showed active interest in the presented work and demonstrators on
Ad-Hoc multicast/MAMAS, P2P-SIP/Oversim,
Massively Multiplayer on-line Games (MMOGs)
and Spontaneous Virtual Networks (SpoVNet)
as well as at the additional presentations of the
projects FleGSens and ZeuS. Jörg Liebeherrs
talk with the title “Overlays can do more... if
not everything” also found a large audience inside and outside of the institute.
On 01/23 the institute was visited by a delegation of Alcatel Lucent Bell Babs in Stuttgart.
Here after a presentation of the guests the topics
P2P-SIP/OverSim, MMOGs, latency minimization in structured overlays, SpoVNet and MAMAS were presented. The last visit was by a
delegation of Siemens CT in Munich on 02/03.
Additionally to SpoVNet and P2P-SIP/Oversim
two projects in the energy context (SESAM and
MEREGIO) were presented here.
The 74th IETF meeting was held in San Francisco (CA, USA). Dr. Roland Bless participated 14.01.2009 Dr. Oliver P. Waldhorst [email protected]
4
SESAM Demonstrator on the CeBIT for
the 2nd Time
Telematik Newsletter 2009/1
Miscellaneous
New team member Anton Hergenröder
Figure 6 SESAM Demonstrator on the CeBIT
for the 2nd Time
The SESAM demonstrator, a model world that
visualizes a decentralized trade platform for energy within a virtual power plant, illustrates the
central research results of the project “Self Organization and Spontaneity in Liberalized and
Harmonized Markets”. After its premiere at the
CeBIT 2006 the demonstrator was presented on
this years CeBIT on the SAP stand. Again, it
was a big attraction for the visitors (Fig. 6).
The co-operation between the institute and SAP
originates from the project “Towards Minimum
Emission Regions (MEREGIO)”.
03.03.2009 Dr. Oliver P. Waldhorst [email protected]
Figure 7 New team member Anton Hergenröder
As of January 2009, Anton Hergenröder (Fig. 7)
has joined the ITM research team. Within
the scope of the ZeuS-Project he is developing
a testbed for wireless sensor-actuator-networks
(WSANs). The testbed is intended to be used
for studying various characteristics of WSANApplications (e.g. energy efficiency, reliability,
security, performance) in real world scenarios.
He is also involved in research into modelling of
WSANs within the MoSe-Project.
15.01.2009 Anton Hergenröder [email protected]
Joe Touch visits the ITM
New team member Hans Wippel
On Friday, March 20, the Institute of Telematics
was visited by Joe Touch, Postel Center Director at the ISI of the University of Southern California, where he is involved in several research
projects on computer networking. Among other
activities, Joe Touch is chair of the IEEE Technical Committee on Computer Communications.
After his presentation to all Institute members about the Recursive Network Architecture
(RNA), some members had the opportunity to
continue discussions with him about protocol
composition approaches. At the same time,
ideas could be picked up again, that were initially talked about when the Institute members
Lars Völker und Denis Martin visited the ISI in Figure 8 New team member Hans Wippel
September of last year.
20.03.2009 Denis Martin [email protected]
Since February 2009 Hans Wippel (Fig. 8) is
Telematik Newsletter 2009/1
a member of the research team of the Institute of Telematics. Within the context of the
BMBF funded project “G-Lab” he works on
service oriented network architectures and the
components-based design of network protocols in
the Future Internet. He also wrote his diploma
thesis about optimized communication between
overlay members in heterogeneous networks at
the Institute of Telematics.
01.02.2009 Hans Wippel [email protected]
New team member Jens Horneber
Figure 9 New team member Jens Horneber
Jens Horneber (Fig. 9) joined the scientific staff at Institute of Telematics in february 2009 for the subproject “Energy efficient
roboust and secure communication” in the Research Training Group “Self-organizing SensorActuator-Networks”. He is working on adaptive application-driven configration of wireless
service oriented sensor-actor networks and distributed energy measurement in sensor networks.
01.02.2009 Jens Horneber [email protected]
References
Peter Baumung: Banishing Patch-Cables
from LAN Parties - Using Ad-hoc P2P Multicast
as a Substitute? In Kommunikation in Verteilten Systemen (KiVS) 2009, Kassel, Germany,
March 2009. Springer.
Peter Baumung and Denis Martin: Modulare P2P-basierte Gruppenkommunikation in
mobilen Ad-hoc-Netzen (Demo), March 2009.
Peter Baumung and Martina Zitterbart:
Basissoftware für drahtlose Ad-hoc- und Sen-
5
sornetze. Universitätsverlag Karlsruhe, March
2009.
Peter Baumung and Martina Zitterbart:
MAMAS - Mobility-aware Multicast for Ad-hoc
Groups in Self-organizing Networks, pages 33–
48. Universitätsverlag Karlsruhe, March 2009.
J. Furthmüller, M. Pink, H. Hartenstein,
and O. Waldhorst: Overcoming a Communication Barrier on the Way Towards a Global
Sensor Network. In Proc. 1st Workshop on
Global Sensor Networks (GSN 2009), co-located
with 16. ITG/GI Fachtagung Kommunikation in
Verteilten Systemen (KiVS 2009), Kassel, Germany, March 2009.
In a global sensor network different sensor
platforms will be deployed. A grave obstacle on
the way of building sensor networks out of different sensor nodes are incompatible implementations of network protocol stacks used with different sensor node platforms. We describe our
efforts to overcome this obstacle in a heterogeneous sensor network consisting out of MICAz
Motes and Sun SPOTs, both using an IEEE
802.15.4 radio chip. We explain the major differences in the respective network stacks and our
approach to bridge them. A network stack that
bridges the gap between different platforms allows for more flexible and robust networks.
Jochen Furthmüller and Oliver P. Waldhorst: A Survey on Grid Computing on Mobile Consumer Devices. In N. Antonopoulos,
G. Exarchakos, M. Li, and A. Liotta (editors): Handbook of Research on P2P and Grid
Systems for Service-Oriented Computing. IGIGlobal, January 2009. to appear.
The paradigm of grid computing offers interesting perspectives for future usage of computing devices. Sharing of resources makes new
demanding applications feasible and helps to exploit previously unused potential. With an increasing number of mobile devices for communication and computation the vision of a mobile grid is becoming more and more attractive.
Yet the transfer of the paradigm of grid computing to the domain of mobile devices is difficult.
It faces multiple challenges, namely narrowness
of resources, intermittent connectivity, increased
heterogeneity and network dynamics. Different
approaches exist to tackle isolated facets of this
task. They vary in aspects of the mobile grid
architecture, the kind of shared resources and
the way the participants use resources and contribute resources to the grid. This chapter proposes a scheme for classifying approaches for
6
mobile grids with respect to these aspects. Furthermore, it provides a survey of such efforts,
and identifies remaining challenges and future
trends.
Thomas Gamer and Christoph P. Mayer:
Large-scale Evaluation of Distributed Attack Detection. In Digital Proceedings of 2nd International Workshop on OMNeT++, March 2009.
Christian Hübsch and Oliver P. Waldhorst: Enhancing Application-Layer Multicast
Solutions by Wireless Underlay Support. In
Kommunikation in Verteilten Systemen (KiVS)
2009, Kassel, Germany. Springer, March 2009.
Application Layer Multicast (ALM) is an
attractive solution to overcome the deployment
problems of IP-Multicast. We show how to cope
with the challenges of incorporating wireless devices into ALM protocols. As a rst approach we
extend the NICE protocol, signifi cantly increasing its performance in scenarios with many devices connected through wireless LAN.
http://doc.tm.uka.de/2009/nice-wli.pdf
Christoph P. Mayer:
Security and
Privacy Challenges in the Internet of
Things.
In Proceedings of KiVS Workshop on Global Sensor Networks (GSN09),
March
2009.
http://eceasst.cs.tuberlin.de/index.php/eceasst/article/view/208/205.
http://doc.tm.uka.de/2009/gsn09-security-may
er.pdf (slides)
Lars Völker, Christoph Werle, Marcel
Noe and Benjamin Behringer:
AutoConfiguration for Communication Security
(Demo). Demo Poster, March 2009.
Telematik Newsletter
ISSN 1613-9410
Publisher: Institut of Telematics,
University of Karlsruhe (TH)
Prof. Dr. Martina Zitterbart
[email protected]
Editors:
Sebastian Mies [email protected]
Web:
http://doc.tm.uka.de/newsletter/
Telematik Newsletter 2009/1