UK Kidney Week 2020 holds its first virtual art exhibition

Lisa Ancliffe, a member of the British Renal Society Rehab Network, updates on a virtual art exhibition for people living with chronic kidney disease

Towards Causal Consistent Updates in Software-Defined Networks

A network paradigm called the Software-Defined Network (SDN) has recently been introduced. The idea of SDN is to separate the control logic from forwarding devices to enable a centralized control platform. However, SDN is still a distributed and asynchronous system: events can be triggered by any network entity, while messages and packets are prone to arbitrary and unpredictable transmission delays. Moreover, the absence of a global temporal reference results in a broad combinatorial range space of event order. During network updates, an out-of-order execution of events may result in a deviation from desirable consistent network update properties, leading, for example, to forwarding loops and forwarding black holes, among others. In this paper, we introduce a study of the Transient Forwarding Loop (TFL) phenomenon during SDN updates; for this, we define a formal model of the TFL based on causal dependencies that capture the conditions under which it may occur. Based on this model, we introduce an algorithm that ensures the causal dependencies of the system oriented toward TFL-free SDN updating. We formally prove that it is sufficient to ensure the causal dependencies in order to guarantee TFL-free network updates. Finally, we analytically evaluate our algorithm and discuss how it outperforms the state-of-the-art in terms of updating overhead.

Cloud Services for Device Utilization and Optimization of Hybrid Network

Network devices are labeled as one of the essentially hard tasked equipment. These devices are dynamically taking part in the network based on the user demand. Thus the network is updated with new devices, as well as the existing devices find their way to update themselves based on the network changes to provide network services to users. Erstwhile the existing devices in the network left offhand to provide services due to the drastic changes in the hybrid network updates such as operating systems and those devices face incompatibility. This examination distinguishes the most usable gadgets in the crossover coordinate with the assistance of genuine considerable system. Likewise it talks about the usable gadget's measurements as a gathering of comparable nature.The statistics includes the packet usage, protocols used for communications, error messages. This analysis recommends cloud based services to solve compatibility issues by analyzing network traffic hindrances. This experiment uses over all 1000 pcs, 100s of hybrid network devices and a network analyzer software for observation and to analyze the fixed term of network traffic packets among the devices. The investigation additionally recommends the required strides towards the reusability of existing gadgets to give nature of administrations to the clients in the half breed arrange condition by methods for cloud based patches.