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A challenge faced by Network Operations Center (NOC) personnel responsible for large, complex IP/MPLS networks is locating the network issues that affect application performance and availability. This is due to the sheer number of paths that traffic can traverse when routed through a large network. According to a survey by an analyst firm, network issues are involved in over 50 percent of application and service delivery problems. Given this, speed and accuracy in diagnosing application or service-affecting network issues is a serious matter for organizations that aim to provide excellent service.