In search of path diversity in ISP networks
Proceedings of the 3rd ACM SIGCOMM conference on Internet measurement
BorderGuard: detecting cold potatoes from peers
Proceedings of the 4th ACM SIGCOMM conference on Internet measurement
Achieving sub-50 milliseconds recovery upon BGP peering link failures
CoNEXT '05 Proceedings of the 2005 ACM conference on Emerging network experiment and technology
MIRO: multi-path interdomain routing
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Touring the internet in a TCP sidecar
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
Avoiding traceroute anomalies with Paris traceroute
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
How DNS misnaming distorts internet topology mapping
ATEC '06 Proceedings of the annual conference on USENIX '06 Annual Technical Conference
Measuring load-balanced paths in the internet
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
In search of the elusive ground truth: the internet's as-level connectivity structure
SIGMETRICS '08 Proceedings of the 2008 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Discarte: a disjunctive internet cartographer
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
The resource pooling principle
ACM SIGCOMM Computer Communication Review
Internet Mapping: From Art to Science
CATCH '09 Proceedings of the 2009 Cybersecurity Applications & Technology Conference for Homeland Security
Fast Dynamics in Internet Topology: Observations and First Explanations
ICIMP '09 Proceedings of the 2009 Fourth International Conference on Internet Monitoring and Protection
R-BGP: staying connected In a connected world
NSDI'07 Proceedings of the 4th USENIX conference on Networked systems design & implementation
Network topologies: inference, modeling, and generation
IEEE Communications Surveys & Tutorials
INTERNET TOPOLOGY DISCOVERY: A SURVEY
IEEE Communications Surveys & Tutorials
IP multicast operational network management: design, challenges, and experiences
IEEE Network: The Magazine of Global Internetworking
Toward internet-wide multipath routing
IEEE Network: The Magazine of Global Internetworking
Proceedings of the 9th ACM SIGCOMM conference on Internet measurement conference
BGP add-paths: the scaling/performance tradeoffs
IEEE Journal on Selected Areas in Communications - Special issue title on scaling the internet routing system: an interim report
Resolving IP aliases with prespecified timestamps
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
On the impact of layer-2 on node degree distribution
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
The 2nd workshop on active internet measurements (AIMS-2) report
ACM SIGCOMM Computer Communication Review
Extracting intra-domain topology from mrinfo probing
PAM'10 Proceedings of the 11th international conference on Passive and active measurement
BGP-XM: BGP eXtended Multipath for transit Autonomous Systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
Towards a bipartite graph modeling of the internet topology
Computer Networks: The International Journal of Computer and Telecommunications Networking
Growth analysis of a large ISP
Proceedings of the 2013 conference on Internet measurement conference
DataTraffic Monitoring and Analysis
| Hi-index | 0.00 |
Redundant connectivity (or multiconnectivity) between adjacent autonomous systems (ASes) is important for interdomain traffic engineering and fast recovery in case of failures. However, the redundancy of ASes business relationship links has not been quantitatively studied, mainly due to the difficulty of obtaining relevant data. In this paper, we show that the mrinfo multicast monitoring tool can provide useful data about the Internet topology and such redundant links in particular. Our analysis relies on more than four years of daily queries to about ten thousand routers mapped into more than two hundred ASes. We demonstrate that peering links between ASes are frequently redundant. In particular, our analysis shows that more than half of the studied ASes pairs are connected through multiple physical links. We then refine our analysis by considering the different types of ASes and their business relationships. A particular result of our analysis is that at least 75% of the peer-to-peer relationships between adjacent Tier-1 ASes are redundant, i.e., the connections between these ASes involve several physical links. Our analysis is conservative, providing so a lower bound, as some links might not be seen by mrinfo due to ISPs filtering policies.