100GET-E3 R3G

100GET Logo

Research project funded by

Part of the CELTIC Initiative

100GET-E3-R3G Project Team

Julian Ott
Vlad Singeorzan
Thilo Müller
Former Students
Christopher Pluntke
Eduard Weber
Xiao-Hua Qin
Anke Endler
Funded period: October 2007 - September 2010, October 2010 - December 2010
Contents:   Summary  |  Project Partners  |  On the Web  |  Publications  |  MuLaNEO


Data communication demands for more and more capacity. DSL access of 16 Mbit/s is common in Germany, 100 Mbit/s is already offered by some providers. Fiber access is state of the art in many countries of South-East Asia and tremendous traffic volumes are exchanged over fiber lines. This trend will continue over the next decade. The market is competitive such that Internet service providers (ISPs) need to provide high-quality services (high throughput, little delay, little jitter, high reliability) at low cost.

The CELTIC initiative brings together university researchers and business partners to jointly face this challenge. ADVA, Alcatel-Lucent, Ericsson, and Nokia-Siemens Networks are the main drivers each of them heading a group of university and small or medium enterprise partners. The Chair of Distributed Systems of the University of Wuerzburg is part of the subproject "100GET-E3: End-to-End Carrier-Grade Ethernet" led by Nokia-Siemens Networks and receives funding under the name "R3G: Routing, Grooming, Resilience, and Resource Management for Multilayer Networks".

The objective of the project 100GET is to provide a low-cost high-capacity solution for the network of the future. Two main objectives are addressed: the transmission of 100 Gbit/s and the provision of high-quality services at low cost. The project R3G focuses on the second aspect.

One of the main cost factors for ISPs are network components and among them IP routers are most expensive. Therefore, ISPs look for alternatives that are cheaper with respect to investment and operation cost. Enhanced Ethernet technology - the so-called Carrier Ethernet - seems to be a candidate to replace many IP routers within networks of ISPs. Therefore, international standardization bodies like IEEE or IETF push forward T-MPLS, VLAN XC, and PBB-TE/PBT.

The research of the University of Wuerzburg targets at the following issues. Cost savings can be obtained by keeping traffic in the optical domain as long as possible, using packet-switching capabilities of Carrier Ethernet nodes inside the network only when needed, and banning IP routers from the core. This is achieved by intelligent traffic grooming and routing that should make best use of the network resources. In addition, the reliability of the network is improved by cost-efficient protection switching and restoration mechanisms. To that end, optimization methods for the design and configuration of a future communication architecture are developed.

Project Partners

Cooperating business partners:
Cooperating university partners:

On the Web


Conference Articles

Michael Duelli, Xiaohua Qin, Michael Menth
Greedy Design of Resilient Multi-Layer Networks.
6th Conference on Next Generation Internet Networks (NGI 2010), Paris, France, June 2010.
[Abstract][PDF (276 kB)][Bibtex]

Michael Duelli, Anke Endler, Michael Menth
Deferring CAPEX Investments in Multi-Layer Networks through IP Traffic-Dependent Expansion Stages.
11. ITG-Fachtagung Photonische Netze, Leipzig, Germany, May 2010.
[Abstract][PDF (326 kB)][Bibtex]

Thomas Michaelis, Michael Duelli, Mohit Chamania, Bernhard Lichtinger, Franz Rambach, Stefan Türk
Network Planning, Control and Management Perspectives on Dynamic Networking.
European Conference and Exhibition on Optical Communication (ECOC), Vienna, Austria, September 2009.
[Abstract][PDF (133 kB)][Bibtex]

Christopher Pluntke, Michael Menth, Michael Duelli
CAPEX-Aware Design of Survivable DWDM Mesh Networks.
IEEE International Conference on Communications (ICC), Dresden, Germany, June 2009.
[Abstract][PDF (185 kB)][Bibtex]

Michael Duelli, Eduard Weber, Michael Menth
A Generic Algorithm for CAPEX-Aware Multi-Layer Network Design.
10. ITG-Fachtagung Photonische Netze, Leipzig, Germany, May 2009.
[Abstract][PDF (169 kB)][Bibtex]

Michael Duelli, Matthias Hartmann, Michael Menth, Ralf Hülsermann, Michael Düser
Performance Evaluation of IP over Cost-Optimized Optical Multilayer Networks with SRLGs.
9. ITG-Fachtagung Photonische Netze, Leipzig, Germany, April 2008.
[Abstract][PDF (1011 kB)][Bibtex]

Michael Duelli, Christopher Pluntke, Michael Menth
Minimizing Installation Costs of Survivable DWDM-Mesh Networks: A Heuristic Approach.
4th Euro-NGI Conference on Next Generation Internet Networks (NGI 2008), Krakow, Poland, April 2008.
[Abstract][PDF (333 kB)][Bibtex]

Diploma Thesis

Xiaohua Qin
Algorithms for CAPEX-Aware Design of Survivable Multi-Layer Networks.
[Algorithmen für Investitionsaufwand-abhängige Planung von ausfallsicheren, mehrschichtigen Netzwerken], January 2010.[Bibtex]

Eduard Weber
CAPEX Models and Optimization for Multi-Layer Optical Networks.
[CAPEX-Modelle und Optimierung für mehrschichtige, optische Netzwerke], March 2009.[Bibtex]

Christopher Pluntke
Routing and Grooming in Survivable WDM-Mesh Networks: Heuristics and Performance Evaluation.
[Routing und Grooming in ausfallsicheren WDM-Mesh Netzwerken: Heuristiken und Leistungsbewertung], March 2008.[Bibtex]

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