— Filip De Greve , Product Marketing Manager Fixed Networks , Nokia be performed . In addition , in the event of a service outage , diagnostic data is usually lost in a traditional network , sometimes making it impossible to determine the root cause . In a SDAN , the data remains available for analysis after a network reset .

Any operator embarking on a modernisation program or upgrade should consider what SDAN can bring to the table . But don ’ t get caught into the thinking that SDAN means all-or-nothing – it ’ s OK to apply virtualisation step-bystep , starting with selected use cases to demonstrate the financial return . Clearly define what you want to achieve and remember that while SDAN brings shiny new technological capabilities , it is really about how an operator goes about creating value while breaking down networking silos and dated operational practices along the way .

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