Marc Brogle

Learn More
GEYSERS aims at defining an end-to-end network architecture that offers a novel planning, provisioning and operational framework for optical network and IT infrastructure providers and operators. In this framework, physical infrastructure resources (network and IT) are dynamically partitioned to virtual resources and then composed into a Virtual(More)
This paper describes how Quality of Service (QoS) enabled Overlay Multicast architectures using Peer-to-Peer (P2P) networks can enhance the experience of end-users in Networked Virtual Environments (NVE). We show how IP Multicast, which offers an easy to use API for implementing NVE but is not widely deployed, can be made available to end-users by bridging(More)
—In this paper we propose energy efficient design and operation of infrastructures incorporating integrated optical network and IT resources. For the first time we quantify significant energy savings of a complete solution jointly optimizing the allocation and provisioning of both network and IT resources. Our approach involves virtualization of the(More)
In this paper we present our solution for providing IP Multicast on end systems in the Internet. The goal of the proposed solution is not to replace IP Multicast, but to provide an IP Multicast interface to applications on end systems in the current Internet environment, where IP Multicast is not available. Our solution, called Multicast Middleware, is a(More)
Multicasting is an efficient mechanism for one to many data dissemination. Unfortunately, IP Multicasting is not widely available to end-users today, but Application Layer Multicast (ALM), such as Content Addressable Network, helps to overcome this limitation. Our OM-QoS framework offers Quality of Service support for ALMs. We evaluated OM-QoS applied to(More)
Multicasting in Wireless Sensor Networks (WSNs) is an efficient way to disseminate the same data to multiple receivers. For critical tasks such as code updates, reliability would be a desirable feature, in order to use multicasting for such scenarios. Due to the nature of WSNs, several problems exist that make realizing an efficient, reliable and energy(More)
SplitPath is a new application for the easy, well-known and provably secure one-time pad encryption scheme. Two problems hinder the one-time pad scheme from being applied in the area of secure data communication: the random generation and the distribution of this random data. SplitPath exploits the flexibility of code mobility in active networks to address(More)