With increasingly converged and complex networked services, service providers are under a lot of pressure to deliver quality service and customer assurance. Key service enablers are playing ever more crucial roles and need to provide quick response for a good customer experience with the service. AAA servers, need to authenticate cell phone users each time the phone is turned on, DHCP servers need to dynamically assign IP addresses, DNS servers need to perform name to IP address translation. Any one of these service enablers being a weak link will negatively impact the service they are meant to serve.
Since there is no room for guesswork here, service providers place instrumentation in front of key service enablers such AAA , DNS, and DHCP servers as well as the application servers hosting the service (such as WAP - mobile WEB service on a cell phone). The instrumentation provides real-time end-to-end visibility into services delivered, the customers using them, and the network infrastructure delivering them.
With insight into critical KPIs and proactive automated problem detection and diagnostics, service providers can significantly reduce MTTR. Without such assurance, services could go south in a hurry. In other words, deeper service visibility delivers higher service quality control. This ability to see the whole picture on the flow-level and at the same time dive deep into targeted packet analysis whenever needed allows service providers to assure services and increase customer satisfaction.
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