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Socio-economic aspects are not intrinsic to the current Internet architecture. Today's architecture is becoming stressed as stakeholders introduce "hacks" to try to impose their economic desires on others, leading to a "tussle" of conflicting interests. In this paper, we propose new Internet design principles that are "designed for tussle". We believe that Internet protocols...
Power consumption of ICT is becoming more and more a sensible problem, which is of interest for both the research community, for ISPs and for the general public. In this paper we consider a real IP backbone network and a real traffic profile. We evaluate the energy cost of running it, and, speculating on the possibility of selectively turning off spare devices whose capacity is not required to transport...
Network management has been traditionally considered in the last stages of the design and development cycles of network technology. The typical modus operandi relies mostly on networkers that manually configure active elements, troubleshoot problems as they arise and reconfigure equipment accordingly. In fact, we note that several initiatives in the future Internet research area do not take proactive...
The usage of testbeds is considered a key tool for exploring the development of new protocols and network architectures in the area of network research. Testbeds, together with simulations, are the basic tool set of network researchers to drive research, but often it is impossible to get feedback from real deployments and their respective data traffic. Today's major testbed facilities, e.g., VINI...
The use of network virtualization promises additional flexibility and opens up many opportunities for deploying future network architectures. But the increased flexibility creates additional costs with respect to management and control as well as new issues that need to be addressed. In this paper, we describe a framework that allows for dynamic setup of virtual networks and we point out required...
The use of P2P technologies, such as BitTorrent, to distribute legal content to consumers is actively being explored as a means of reducing both file download times and the energy consumption of data centers. This approach pushes the energy use out of the data centers and into the homes of content consumers (who are also then content distributors). The current BitTorrent protocol requires that clients...
Internet coordinate systems (ICS) have been proposed as a method for estimating delays between hosts without direct measurement. However, they can only be accurate when the triangle inequality holds for Internet delays. Actually triangle inequality violations (TIVs) are frequent and are likely to remain a property of the Internet due to routing policies or path inflation. In this paper we propose...
This paper explores description and clustering techniques for virtual networks provisioning from shared physical resources. The contribution consists of a virtual resource description schema to specify properties and relations between virtual resources and a conceptual clustering technique to facilitate matching and discovery. Conceptual clustering provides a hierarchical classification of virtual...
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