Skip to content. | Skip to navigation

Personal tools

This is SunRain Plone Theme


You are here: Home / Publications


Matthias Wählisch, Thomas C. Schmidt, Markus de Brün, Thomas Häberlen,
Exposing a Nation-Centric View on the German Internet – A Change in Perspective on the AS Level,
In: 13th Passive and Active Measurement Conference (PAM), ser. LNCS, Vol. 7192, p. 200–210, Springer-Verlag : Berlin Heidelberg, 2012.

Abstract: The Internet has matured to a critical infrastructure in many countries. The national importance of routing motivates us to study the AS-level subgraph that is relevant for a country. In this paper, we report on a methodology and tool chain for identifying and classifying a 'national Internet', and evaluate detailed results for the example of Germany. Our contribution (a) identifies the ASes that are important for the country, (b) classifies these ASes into functional sectors, (c) constructs the AS routing graph of a country as well as subgraphs of specific sectors, and (d) analyzes structural dependencies between key players. Our methods indicate the importance of examining individual IP-blocks held by individual organizations, as this reveals 25% more stakeholders compared to only looking at prefixes. We quantify the centrality of ASes with respect to specific sectors and the robustness of communication communities. Our results show that members of sectoral groups tend to avoid direct peering, but inter-connect via a small set of common ISPs. Even though applied for Germany here, all methods are designed general enough to work for most countries, as well.

Themes: Internet Measurement and Analysis


This page generated by bibTOhtml on Sat 24 Aug 00:05:05 CEST 2019

Document Actions

« August 2019 »
Upcoming Events
RIOT Hack'n'ACK (2019/08) Aug 27, 2019 05:00 PM - 11:00 PM — HAW Hamburg, BT7, R4.60
RIOT Hack'n'ACK (2019/09) Sep 24, 2019 05:00 PM - 11:00 PM — HAW Hamburg, BT7, R4.60
RIOT Hack'n'ACK (2019-10) Oct 29, 2019 05:00 PM - 11:00 PM — HAW Hamburg, BT7, R4.60
Upcoming events…