VIAVI TrueSpeed is an RFC 6349‑compliant TCP test solution for the Fusion Service Activation and Assurance System and the Metro family of test equipment. It addresses the gap left by traditional Layer 2/3 tests like RFC 2544, which may pass even when customers still experience poor application performance on TCP‑based services such as video streaming, social media, and file downloads. This mismatch often leads to customer complaints, churn, and higher operational costs due to repeated truck rolls. TrueSpeed solves this by validating real‑world TCP performance, ensuring services meet customer expectations from the start.

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