When HCX migrations or network extensions misbehave, most engineers instinctively start checking firewall rules, routing, or DNS. That’s necessary—but it’s not always the fastest approach. HCX includes a powerful built-in feature called Data‑Plane Diagnostics that helps you validate site‑to‑site data‑plane connectivity and quickly pinpoint why a Service Mesh tunnel is down, degraded, or behaving inconsistently. This blog explains what Data‑Plane Diagnostics is , how to run it , and how to...

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