17 research outputs found
On the scalability of interdomain path computations
Abstract-Recent research has considered various architectural approaches in which route determination occurs separately from forwarding. Such offers many advantages, but also brings a number of challenges, not least of which is scalability. In this paper we consider the problem of computing domain-level end-toend routes in the Internet. We describe a system architecture and a prototype route computation service that provides performance information along with paths. The results of our experiments, which involve updating billions of routes and serving thousands of requests per second, suggest that the resource requirements for a single-domain end-to-end path service (i.e., a service that provides paths from one access domain to all others) are fairly modest
Dark sectors 2016 Workshop: community report
This report, based on the Dark Sectors workshop at SLAC in April 2016,
summarizes the scientific importance of searches for dark sector dark matter
and forces at masses beneath the weak-scale, the status of this broad
international field, the important milestones motivating future exploration,
and promising experimental opportunities to reach these milestones over the
next 5-10 years
Zds2p Regulates Swe1p-dependent Polarized Cell Growth in Saccharomyces cerevisiae via a Novel Cdc55p Interaction Domain
A C-terminal region in Zds2p (ZH4) is required for regulation of Swe1p-dependent polarized cell growth and this region is necessary and sufficient for interaction with protein phosphatase 2A regulatory subunit, Cdc55p. Our results indicate that the Zds proteins regulate the Swe1p-dependent G2/M checkpoint in a CDC55-dependent manner
Quality-of-Service Guarantees Using Positioning Information in a Wireless Distributed Environment
This paper describes a system to support a wireless vision platform moving within a large space spanned by multiple wireless cells. The system offers a cost effective and scalable design for a distributed active vision system consisting of mobile cameras, a compute cluster of high-performance workstations interconnected by a high bandwidth network, and a wireless network divided into distinct cells that connects mobile platforms with the computing cluster. Position information available at the mobile platforms (e.g., via the NAVSTAR global positioning (GPS) system) together with our "position-aware" vision algorithms, and routing protocol ensures continuous quality-of-service (QoS) as the mobile platforms move from cell to cell. This paper extends a real-time QoS communication protocol developed in our earlier work 3 to provide continuous quality of service. We also present vision algorithms that minimize the hardware needed on the mobile platforms using the GPS position information ..