The telecoms industry is moving inexorably towards Network Function Virtualisation (NFV). The benefits of virtualisation in terms of cost savings and efficiencies are clear but transition will be a slow process and take several years.
During this time CSPs must maintain levels of QoS/QoE their customers expect but how is it possible to monitor and troubleshoot a hybrid network when legacy and virtualised elements within it are so different?
This paper looks at the issues raised by the need to monitor hybrid networks and what CSPs need to do to maintain service quality across an evolving network infrastructure.
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