62,378 research outputs found

    Ambient networks: Bridging heterogeneous network domains

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    Providing end-to-end communication in heterogeneous internetworking environments is a challenge. Two fundamental problems are bridging between different internetworking technologies and hiding of network complexity and differences from both applications and application developers. This paper presents abstraction and naming mechanisms that address these challenges in the Ambient Networks project. Connectivity abstractions hide the differences of heterogeneous internetworking technologies and enable applications to operate across them. A common naming framework enables end-to-end communication across otherwise independent internetworks and supports advanced networking capabilities, such as indirection or delegation, through dynamic bindings between named entities

    EbbRT: Elastic Building Block Runtime - overview

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    EbbRT provides a lightweight runtime that enables the construction of reusable, low-level system software which can integrate with existing, general purpose systems. It achieves this by providing a library that can be linked into a process on an existing OS, and as a small library OS that can be booted directly on an IaaS node

    Case Study - IPv6 based building automation solution integration into an IPv4 Network Service Provider infrastructure

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    The case study presents a case study describing an Internet Protocol (IP) version 6 (v6) introduction to an IPv4 Internet Service Provider (ISP) network infrastructure. The case study driver is an ISP willing to introduce a new ā€œkillerā€ service related to Internet of Things (IoT) style building automation. The provider and cooperation of third party companies specialized in building automation will provide the service. The ISP has to deliver the network access layer and to accommodate the building automation solution traffic throughout its network infrastructure. The third party companies are system integrators and building automation solution vendors. IPv6 is suitable for such solutions due to the following reasons. The operator canā€™t accommodate large number of IPv4 embedded devices in its current network due to the lack of address space and the fact that many of those will need clear 2 way IP communication channel. The Authors propose a strategy for IPv6 introduction into operator infrastructure based on the current network architecture present service portfolio and several transition mechanisms. The strategy has been applied in laboratory with setup close enough to the current operatorā€™s network. The criterion for a successful experiment is full two-way IPv6 application layer connectivity between the IPv6 server and the IPv6 Internet of Things (IoT) cloud

    Extensible synthetic file servers? or: Structuring the glue between tester and system under test

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    We discuss a few simple scenarios of how we can design and develop a compositional synthetic ļ¬le server that gives access to external processes ā€“ in particular, in the context of testing, gives access to the system under test ā€“ such that certain parts of said synthethic ļ¬le server can be prepared as oļ¬€-the-shelf components to which other speciļ¬cally written parts can be added in a kind of plug-and-play fashion.\ud \ud The approaches only deal with the problem of accessing the system under test from the point of view of oļ¬€ered functionality, and compositionality, but do not consider eļ¬ƒciency or performance. \ud \ud The study is rather preliminary, and only very limited practical experiments have been performed
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