Events

We had the pleasure to be part of the Dagstuhl seminar Towards Climate-Friendly Internet Research, which took place on July 7–9, 2021. This was the first online Dagstuhl seminar we attended. While the online format was caused by the Corona pandemic, it actually made a lot of sense to hold the seminar in an online format given that the event was largely focused on the question how we can reduce the carbon footprint of the academic community, the network operator communities, and the standardization communities. A simple back of the envelope calculation of the carbon footprint of big network standardization meetings (the IETF runs three meetings a year with 1000+ people attending) leads to pretty gigantic numbers.

Presentations

2015

1. IPv4 versus IPv6 – Who connects faster?
   (V. Bajpai, IFIP Networking 2015, Toulouse, May 2015)
2. Measuring YouTube from Dual-Stacked Hosts
   (V. Bajpai, PAM 2015, New York, March 2015)
3. Large MeAsurement Platform Protocol
   (V. Bajpai, IETF 91, Honolulu, November 2014)
4. Measurement Research within the Python3 Ecosystem
   (S.J. Eravuchira, RIPE69, London, November 2014)

2014

1. Service Discovery in Resource Constrained Networks using Multicast DNS
   (A. Sehgal, EuCNC 2014, Bologna, June 2014)
2. Identifying TCP Congestion Control Algorithms Used on the Internet
   (A. Sehgal, EuCNC 2014, Bologna, June 2014)
3. Lessons Learned From Using the RIPE Atlas Platform for Measurement Research
   (V. Bajpai, RIPE 68, Warsaw, May 2014)

2013

1. Large-Scale Network Measurements
   (J. Schönwälder, CNSM 2013, Zürich, October 2013)
2. Measuring TCP Connection Establishment Times of Dual-Stacked Web Services
   (V. Bajpai, IRTF NMRG, Zürich, October 2013)
3. Measuring the Effects of Happy Eyeballs
   (V. Bajpai, IETF 87, Berlin, July 2013)
4. NFQL: A Tool for Querying Network Flow Records
   (V. Bajpai, IETF 87, Berlin, July 2013)
5. Understanding the Impact of Network Infrastructure Changes using Large-Scale Measurement Platforms
   (V. Bajpai, AIMS 2013, Barcelona, June 2013)
6. NFQL: A Tool for Querying Network Flow Records
   (V. Bajpai, IM 2013, Ghent, May 2013)
7. Measuring the Effectiveness of Happy Eyeballs
   (V. Bajpai, RIPE 66, Dublin, May 2013)

2012

1. A Study of the RPL Repair Process using ContikiRPL
   (A. Sehgal, AIMS 2012, Luxembourg, June 2012)
2. Flow-based Identification of Failures Caused by IPv6 Transition Mechanisms
   (V. Bajpai, AIMS 2012, Luxembourg, June 2012)
3. Internet of Things: Standards for IPv6 Enabled Sensor Networks
   (J. Schönwälder, University of Potsdam, Potsdam, April 2012)

2011

1. Contiki-SNMP – Does SNMP fit on constrained devices?
   (J. Schönwälder, AIMS 2011, Nancy, June 2011)
2. Flow Signatures of Popular Applications
   (V. Perelman, IM 2011, Dublin, May 2011)

2010

1. Performance Evaluation of a Multi-Radio Energy Conservation Scheme for DTNs
   (I. Tumar, MOBIWAC 2010, Bodrum, October 2010)
2. Internet of Things: 802.15.4, 6LoWPAN, RPL, COAP
   (J. Schönwälder, University of Twente, Enschede, October 2010)
3. Management of 6LoWPAN Networks
   (J. Schönwälder, 78th IETF, Maastricht, July 2010)
4. Flow Signatures of Popular Applications
   (N. Melnikov, 78th IETF, Maastricht, July 2010)
5. Cybermetrics: User Identification Through Network Flow Analysis
   (N. Melnikov, AIMS 2010, Zürich, June 2010)
6. Implementation of a Stream-based IP Flow Record Query Language
   (N. Melnikov, AIMS 2010, Zürich, June 2010)
7. Adaptive Underwater Acoustic Communications
   (A. Sehgal, AIMS 2010, Zürich, June 2010)
8. Identifying TCP Congestion Control Algorithms Using Active Probing
   (S. Feyzabadi, PAM 2010, Zürich, June 2010)
9. Effects of Climate Change and Anthropogenic Ocean Acidification on Underwater Acoustic Communications
   (A. Sehgal, Oceans 2010, Sydney, May 2010)
10. AquaTools: An Underwater Acoustic Networking Simulation Toolkit
    (A. Sehgal, Oceans 2010, Sydney, May 2010)

2009

1. Design of a Stream-based IP Flow Query Language
   (J. Schönwälder, DSOM 2009, Venice, October 2009)
2. NCClient: A Python Library for NETCONF Clients
   (J. Schönwälder, IPOM 2009, Venice, October 2009)
3. Evaluation of IPv6 over Low-Power Wireless Personal Area Networks Implementations
   (K. Korte, SenseApp 2009, Zurich, October 2009)
4. NETCONF Interoperability Testing
   (I. Tumar, AIMS 2009, Enschede, July 2009)
5. Visualization of Node Interaction Dynamics in Network Traces
   (J. Schönwälder, AIMS 2009, Enschede, July 2009)
6. Power Management for Acoustic Underwater Networks
   (I. Tumar, SECON 2009, Rome, June 2009)
7. Session Resumption for the Secure Shell Protocol
   (J. Schönwälder, IM 2009, Long Island, June 2009)

2008

1. Fault Resolution in Case-Based Reasoning
   (H. M. Tran, PRICAI 2008, Hanoi, December 2008)
2. Crawling Bug Tracker for Semantic Bug Search
   (H. M. Tran, DSOM 2008, Samos Island, September 2008)

2007

1. Fault Representation in Case-based Reasoning
   (H. M. Tran, DSOM 2007, San José, October 2007)
2. Heuristic Search using a Feedback Scheme in Unstructured Peer-to-Peer Networks
   (H. M. Tran, DBISP2P 2007, Vienna, September 2007)
3. A 6lowpan Implementation for TinyOS 2.0
   (M. Harvan, FGSN 2007, Aachen, July 2007)
4. Distributed Case-based Reasoning for Fault Management
   (H. M. Tran, AIMS 2007, Oslo, June 2007)
5. SNMP Trace Analysis
   (J. Schönwälder, IM 2007, Munich, May 2007)

2006

1. Performance Analysis of SNMP over SSH
   (V. Marinov, DSOM 2006, Dublin, October 2006)
2. Prefix and Lexicographic-order-preserving IP Address Anonymization
   (M. Harvan, NOMS 2006, Vancouver, April 2006)

2005

1. Characterization of SNMP MIB Modules
   (J. Schönwälder, IM 2005, Nice, May 2005)

Tutorials

1. Large-scale Measurement Platforms
   (V. Bajpai, N. Melnikov, AIMS 2013, Barcelona, June 2013)
2. Management of the Internet of Things
   (J. Schönwälder, A. Sehgal, IM 2013, Ghent, May 2013)
3. Network Configuration Management with NETCONF and YANG
   (J. Schönwälder, IETF 84, Vancouver, July 2012)
4. Running a Cloud Computing Infrastructure with OpenStack
   (A. Sehgal, AIMS 2012, Luxembourg, June 2012)
5. A Practical Introduction to 6LoWPAN Programming IPv6 Wireless Sensor Networks with Contiki
   (A. Sehgal, AIMS 2010, Zürich, June 2010)
6. NETCONF and YANG Status, Tutorial, Demo
   (J. Schönwälder, 75th IETF, Stockholm, July 2009)
7. Introduction to IEEE 802.15.4 and IPv6 over 802.15.4 (6LowPAN)
   (J. Schönwälder, AIMS 2009, Enschede, July 2009)
8. Introduction to NETCONF and YANG
   (J. Schönwälder, IM 2009, Long Island, June 2009)
9. Internet Management: Status and Challenges
   (J. Schönwälder, IM 2005, Nice, May 2005)
10. Internet Management: Status and Challenges
    (A. Pras and J. Schönwälder, NOMS 2004, Seoul, April 2004)

Panels

1. Management of the Internet of Things
   (J. Schönwälder, NOMS 2014, Krakow, May 2014)

Vaibhav Bajpai presented a paper summarizing his PhD thesis at the IFIP/IEEE International Symposium on Integrated Network Management (IM 2017) and he received the best dissertation paper award.

We helped to organize a Dagstuhl seminar on Using Networks to Teach About Networks, which took place March 12–15, 2017. During the seminar, we discussed the different approaches to teach computer networking and how to best use of online resources to better educate students. For details, see the seminar report.

We presented our work on measuring webpage similarity delivered over IPv4 and IPv6 at the RIPE 72 plenary in Copenhagen. A recording of the talk can be found on Vimeo.

We discussed the usage of system tags for performing vantage point selection of dual-stacked probes. Our exploration reveals how with around 2K dual-stacked probes, RIPE Atlas provides the richest source of vantage points for IPv6 measurement studies. User tags on the other hand are based on a manual process which is largely dependent on proactive participation of probe hosts. We show that user tags tend to become stale over time. This work was presented at the MAT working group at RIPE 72 meeting in Copenhagen. A recording of the presentation can be found on Vimeo.

We helped organize a Dagstuhl seminar on Global Measurements: Practice and Experience from January 04–07, 2016. This was a followup of the seminar on Global Measurement Framework. The second seminar aimed at discussing the practical experience gained with building global measurement platforms. It brought together people who are actively involved in the design and maintenance of global measurement systems, who do research on the data delivered by global measurement systems, and who use data derived from global measurement systems in order to manage networks or services or as input for regulatory decisions. For details, see the seminar report.

Our research group is taking an active leadership role in the organization of some key scientific events this year:

• We are involved in the organization of the demo track of the IFIP/IEEE International Symposium on Integrated Management (IM 2015), which takes place in Ottawa (Canada) in May 2015.
• We co-chair the technical program committee of the 11th International Conference on Network and Service Management (CNSM 2015), which takes place in Barcelona (Spain) in October 2015.
• We are organizing the Dagstuhl Seminar 16012 Global Measurement Practice and Experience, which takes place in Wadern (Germany) in January 2016.

For the IM 2015 demo track, we received a good number of submissions and the demo selection process is well underway. For CNSM 2015, we hope to attract a good number of submission. CNSM is the most selective conference in the field of network and service management research. It is important for every researcher working on topics related to network and service management to present and discuss their work at this key event. The paper submission deadline is April 24th, 2015.

In this talk, we present a set of tools that we find useful for measurement research and would like to share them with the larger RIPE community. Given the nature of the talk, we will make a live demo of running code snippets using the IPython notebook. A recording of our presentation can be found on Vimeo.

We have demonstrated an implementation of the LOWPAN-MIB at the Low-power Lossy Networks (LLN) plugfest, which took place on Sunday before the 90th IETF meeting. We showed how to access the counters via our Contiki SNMP implementation and Contiki's CoAP implementation. The plugfest was overall very interesting and very well organized. People involved in several interesting projects attended the plugfest and it was nice to get into personal contact. Further details can be found on the plugfest slides.