On power-law relationships of the Internet topology
Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
On inferring autonomous system relationships in the internet
IEEE/ACM Transactions on Networking (TON)
An Analysis of Internet Inter-Domain Topology and Route Stability
INFOCOM '97 Proceedings of the INFOCOM '97. Sixteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Driving the Information Revolution
Collecting the internet AS-level topology
ACM SIGCOMM Computer Communication Review
The internet AS-level topology: three data sources and one definitive metric
ACM SIGCOMM Computer Communication Review
Cyclops: the AS-level connectivity observatory
ACM SIGCOMM Computer Communication Review
Modeling the Internet Routing Topology - In Less than 24h
PADS '09 Proceedings of the 2009 ACM/IEEE/SCS 23rd Workshop on Principles of Advanced and Distributed Simulation
Towards an AS-to-organization map
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
Exploring reachability via settlement-free peering
Proceedings of the 2012 ACM conference on CoNEXT student workshop
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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.