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Virtualization technologies have proven to be important drivers for the fast and cost-efficient development and deployment of services. While the benefits are tremendous, there are many challenges to be faced when developing or porting services to virtualized infrastructure. Especially critical applications like Virtualized Network Functions must meet high requirements in terms of reliability and...
Critical services in the field of Network Function Virtualization require elaborate reliability and high availability mechanisms to meet the high service quality requirements. Traditional monitoring systems detect overload situations and outages in order to automatically scale out services or mask faults. However, faults are often preceded by anomalies and subtle misbehaviors of the services, which...
As Cloud technologies mature increasingly, more businesses tend to migrate their services towards Infrastructure-as-a-Service platforms instead of dedicated data centers. Recently, even telecommunication providers consider moving their services to the Cloud despite the high demands regarding service quality. In order to deploy such critical services using mainstream Cloud management software, it must...
Virtualization as a key IT technology has developed to a predominant model in data centers in recent years. The flexibility regarding scaling-out and migration of virtual machines for seamless maintenance has enabled a new level of continuous operation and changed service provisioning significantly. Meanwhile, services from domains striving for highest possible availability – e.g. from the telecommunications...
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