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Colorado State University

1. Shah, Anant. Systems for characterizing Internet routing.

Degree: PhD, Computer Science, 2018, Colorado State University

Today the Internet plays a critical role in our lives; we rely on it for communication, business, and more recently, smart home operations. Users expect high performance and availability of the Internet. To meet such high demands, all Internet components including routing must operate at peak efficiency. However, events that hamper the routing system over the Internet are very common, causing millions of dollars of financial loss, traffic exposed to attacks, or even loss of national connectivity. Moreover, there is sparse real-time detection and reporting of such events for the public. A key challenge in addressing such issues is lack of methodology to study, evaluate and characterize Internet connectivity. While many networks operating autonomously have made the Internet robust, the complexity in understanding how users interconnect, interact and retrieve content has also increased. Characterizing how data is routed, measuring dependency on external networks, and fast outage detection has become very necessary using public measurement infrastructures and data sources. From a regulatory standpoint, there is an immediate need for systems to detect and report routing events where a content provider's routing policies may run afoul of state policies. In this dissertation, we design, build and evaluate systems that leverage existing infrastructure and report routing events in near-real time. In particular, we focus on geographic routing anomalies i.e., detours, routing failure i.e., outages, and measuring structural changes in routing policies. Advisors/Committee Members: Papadopoulos, Christos (advisor), Pallickara, Shrideep (committee member), Ray, Indrakshi (committee member), Gersch, Joseph (committee member), Luo, J. Rockey (committee member), Bush, Randy (committee member).

Subjects/Keywords: Border Gateway Protocol; Internet Routing; Routing Anomalies; Detours; Autonomous Systems; Outages

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APA (6th Edition):

Shah, A. (2018). Systems for characterizing Internet routing. (Doctoral Dissertation). Colorado State University. Retrieved from

Chicago Manual of Style (16th Edition):

Shah, Anant. “Systems for characterizing Internet routing.” 2018. Doctoral Dissertation, Colorado State University. Accessed January 26, 2020.

MLA Handbook (7th Edition):

Shah, Anant. “Systems for characterizing Internet routing.” 2018. Web. 26 Jan 2020.


Shah A. Systems for characterizing Internet routing. [Internet] [Doctoral dissertation]. Colorado State University; 2018. [cited 2020 Jan 26]. Available from:

Council of Science Editors:

Shah A. Systems for characterizing Internet routing. [Doctoral Dissertation]. Colorado State University; 2018. Available from: