Today’s platforms provide surprisingly little help to developers of high-performance scalable services. To address this, Derecho automates the creation of complex application structures in which each member plays a distinct role. Derecho’s data plane runs a novel RDMAbased multicast protocol that scales exceptionally well. The Derecho control plane introduces an asynchronous monotonic logic pro...

services to their customers. This includes not being tied to proprietary equipment, and more importantly, being able to lower CapEx and OpEx, improve time-to-market and deliver leading-edge performance. Voicing these desires, thirteen of the world’s largest service providers wrote a joint white paper encouraging the development of interoperable solutions based on industry-standard servers. They...

This paper proposes efficient software architecture for ipsec crypto offload. It describes how to implement the control plane part and data plane part, analyzes each module in the data plane. Meanwhile, it provides details performance analysis.

Support for anycast in the IP network layer allows one source node to contact a single member out of a group of destination nodes configured with the same IP address. Due to the stateless nature of the IP protocol, subsequent packets from the same source node targeted at the same anycast group may arrive at different group members. Consequently, native IP anycast cannot be applied directly to s...

In this work, we propose APLASIA, an holistic architecture with a radical design. Aiming at simplifying the inner network devices (and so their cost), we tradeoff node architectureand algorithmic-complexity for an increased (but tunable) communication cost. The main ingredients of our recipe are (i) the use of complete paths directly in the frames header, that allows core devices to perform dat...

The StarPlane project enables users to dynamically control network photonic paths. Applications that run on the Distributed ASCI Supercomputer (DAS-3) manipulate wavelengths in the Dutch research and education network SURFnet6. The goal is to achieve fast switching times so that when the computational pattern in the computing clusters changes, the underlying network topology adapts rapidly to t...

An approach of managing a service infrastructure for wireless local area networks (WLANs) is presented. This approach uses Active Network technology as developed in the IST project FAIN in order to deploy and run services at appropriate locations in the network. By introducing a service which monitors traffic and adaptively controls the access of mobile users it is possible to dynamically bind ...

background: in general, measurements of solar ultraviolet (uv) radiation are related to horizontal surfaces. while the hu­mans walking and standing outdoors expose to the natural solar uv radiation, their eyes, cheeks, extremities, trunks, or many other anatomical sites are close to vertical plane and random orient to different directions. in this study, we character­ized the diurnal variations...