Carmelo Cascone

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Software Defined Networking envisions smart centralized controllers governing the forwarding behavior of dumb low-cost switches. But are "dumb" switches an actual strategic choice, or (at least to some extent) are they a consequence of the lack of viable alternatives to OpenFlow as programmatic data plane forwarding interface? Indeed, some level of(More)
A reliable and scalable mechanism to provide protection against a link or node failure has additional requirements in the context of SDN and OpenFlow. Not only it has to minimize the load on the controller, but it must be able to react even when the controller is unreachable. In this paper we present a protection scheme based on precomputed backup paths and(More)
In this paper we present a novel experimental platform for network management able to dynamically optimize the energy consumption of backbone IP networks operating with OSPF. The idea is to efficiently adjust link weights to put to sleep idle devices. The framework relies on multiple precomputed sets of link weights that are applied to the considered(More)
This paper aims at contributing to the ongoing debate on how to bring programmability of stateful packet processing tasks inside the network switches, while retaining platform independency. Our proposed approach, named “Open Packet Processor” (OPP), shows the viability (via an hardware prototype relying on commodity HW technologies and operating in a(More)
INTRODUCTION Vitamin D receptor activator (VDRA) therapy has been shown to be associated with reduced mortality rates in chronic kidney disease (CKD) patients with secondary hyperparathyroidism (SHPT). However, differences between VDRAs in their ability to reduce both all-cause and cardiovascular-related mortality rates are not yet fully elucidated. (More)
BACKGROUND Automatic systems for stabilizing blood pressure (BP) during dialysis are few and only control those variables indirectly related to BP. Due to complex BP regulation under dynamic dialysis conditions, BP itself appears to be the most consistent input parameter for a device addressed to preventing dialysis hypotension (DH). METHODS An automatic(More)
When dealing with node or link failures in Software Defined Networking (SDN), the network capability to establish an alternative path depends on controller reachability and on the round trip times (RTTs) between controller and involved switches. Moreover, current SDN data plane abstractions for failure detection (e.g. OpenFlow “Fast-failover”)(More)
An effective packet processing abstraction that leverages software or hardware acceleration techniques can simplify the implementation of high-performance virtual network functions. In this paper, we explore the suitability of SDN switches’ stateful forwarding abstractions to model accelerated functions in both software and hardware accelerators, such as(More)
Cardiovascular disease represents the most common cause for the excess of morbidity and mortality found in end-stage renal disease (ESRD) and has prompted the exploration of multiple approaches to improve outcomes in these patients. Cardiovascular risk factors such as increased oxidative stress (OxSt) and inflammation are found in ESRD patients. A vitamin(More)
BACKGROUND Increased oxidative stress (OxSt) as well as inflammation are risk factors for cardiovascular events and determinant of cardiovascular disease which remains the most common cause of excess morbidity and mortality for end-stage renal disease ESRD patients. Haemodiafiltration with on-line regeneration of ultrafiltrate (HFR) has been shown to have a(More)