73 citations · 205 across the 16 of their papers we have counts for
20 papers · 1 filter
Estimating the Impact of BGP Prefix Hijacking
Pavlos Sermpezis, Vasileios Kotronis, Konstantinos Arakadakis +1
BGP prefix hijacking is a critical threat to the resilience and security of communications in the Internet. While several mechanisms have been proposed to prevent, detect or mitiga…
Network-aware Recommendations in the Wild: Methodology, Realistic Evaluations, Experiments
Savvas Kastanakis, Pavlos Sermpezis, Vasileios Kotronis +2
Joint caching and recommendation has been recently proposed as a new paradigm for increasing the efficiency of mobile edge caching. Early findings demonstrate significant gains for…
O Peer, Where Art Thou? Uncovering Remote Peering Interconnections at IXPs
George Nomikos, Vasileios Kotronis, Pavlos Sermpezis +6
Internet eXchange Points (IXPs) are Internet hubs that mainly provide the switching infrastructure to interconnect networks and exchange traffic. While the initial goal of IXPs was…
Validating IP Prefixes and AS-Paths with Blockchains
Ilias Sfirakis, Vasileios Kotronis
Networks (Autonomous Systems-AS) allocate or revoke IP prefixes with the intervention of official Internet resource number authorities, and select and advertise policy-compliant pa…
Inferring Catchment in Internet Routing
Pavlos Sermpezis, Vasileios Kotronis
BGP is the de-facto Internet routing protocol for exchanging prefix reachability information between Autonomous Systems (AS). It is a dynamic, distributed, path-vector protocol tha…
CABaRet: Leveraging Recommendation Systems for Mobile Edge Caching
Savvas Kastanakis, Pavlos Sermpezis, Vasileios Kotronis +1
Joint caching and recommendation has been recently proposed for increasing the efficiency of mobile edge caching. While previous works assume collaboration between mobile network o…
A Survey among Network Operators on BGP Prefix Hijacking
Pavlos Sermpezis, Vasileios Kotronis, Alberto Dainotti +1
BGP prefix hijacking is a threat to Internet operators and users. Several mechanisms or modifications to BGP that protect the Internet against it have been proposed. However, the r…
ARTEMIS: Neutralizing BGP Hijacking within a Minute
Pavlos Sermpezis, Vasileios Kotronis, Petros Gigis +4
BGP prefix hijacking is a critical threat to Internet organizations and users. Despite the availability of several defense approaches (ranging from RPKI to popular third-party serv…
Shortcuts through Colocation Facilities
Vasileios Kotronis, George Nomikos, Lefteris Manassakis +2
Network overlays, running on top of the existing Internet substrate, are of perennial value to Internet end-users in the context of, e.g., real-time applications. Such overlays can…
Characterizing User-to-User Connectivity with RIPE Atlas
Petros Gigis, Vasileios Kotronis, Emile Aben +2
Characterizing the interconnectivity of networks at a country level is an interesting but non-trivial task. The IXP Country Jedi is an existing prototype that uses RIPE Atlas probe…
Investigating the Potential of the Inter-IXP Multigraph for the Provisioning of Guaranteed End-to-End Services
Vasileios Kotronis, Rowan Kloti, Matthias Rost +4
In this work, we propose utilizing the rich connectivity between IXPs and ISPs for inter-domain path stitching, supervised by centralized QoS brokers. In this context, we highlight…
Evaluating the Effect of Centralization on Routing Convergence on a Hybrid BGP-SDN Emulation Framework
Adrian Gamperli, Vasileios Kotronis, Xenofontas Dimitropoulos
A lot of applications depend on reliable and stable Internet connectivity. These characteristics are crucial for mission-critical services such as telemedical applications. An impo…
Policy-Compliant Path Diversity and Bisection Bandwidth
Rowan Kloti, Vasileios Kotronis, Bernhard Ager +1
How many links can be cut before a network is bisected? What is the maximal bandwidth that can be pushed between two nodes of a network? These questions are closely related to netw…
Stitching Inter-Domain Paths over IXPs
Vasileios Kotronis, Rowan Kloti, Matthias Rost +4
Modern Internet applications, from HD video-conferencing to health monitoring and remote control of power-plants, pose stringent demands on network latency, bandwidth and availabil…
Control Exchange Points: Providing QoS-enabled End-to-End Services via SDN-based Inter-domain Routing Orchestration
Vasileios Kotronis, Xenofontas Dimitropoulos, Rowan Kloti +3
This paper presents the vision of the Control Exchange Point (CXP) architectural model. The model is motivated by the inflexibility and ossification of today's inter-domain routing…
A Comparative Look into Public IXP Datasets
Rowan Kloti, Bernhard Ager, Vasileios Kotronis +2
Internet eXchange Points (IXPs) are core components of the Internet infrastructure where Internet Service Providers (ISPs) meet and exchange traffic. During the last few years, the…
Routing Centralization Across Domains via SDN: A Model and Emulation Framework for BGP Evolution
Vasileios Kotronis, Adrian Gamperli, Xenofontas Dimitropoulos
In this work, we propose a radical, incrementally-deployable Internet routing paradigm in which the control plane of multiple networks is centralized. This follows the Software Def…
A Novel Framework for Modeling and Mitigating Distributed Link Flooding Attacks
hristos Liaskos, Vasileios Kotronis, Xenofontas Dimitropoulos
Distributed link-flooding attacks constitute a new class of attacks with the potential to segment large areas of the Internet. Their distributed nature makes detection and mitigati…
On the Interplay of Link-Flooding Attacks and Traffic Engineering
Dimitrios Gkounis, Vasileios Kotronis, Christos Liaskos +1
Link-flooding attacks have the potential to disconnect even entire countries from the Internet. Moreover, newly proposed indirect link-flooding attacks, such as 'Crossfire', are ex…
Towards Defeating the Crossfire Attack using SDN
Dimitrios Gkounis, Vasileios Kotronis, Xenofontas Dimitropoulos
In this work, we propose online traffic engineering as a novel approach to detect and mitigate an emerging class of stealthy Denial of Service (DoS) link-flooding attacks. Our appr…