Set up a regular automated failover test plan that simulates the primary WAN outage and verifies that critical services stay online and remote management remains reachable over the cellular link. Make sure the backup SIM is active, has data, and uses the correct APN; check any external antennas are functioning. Implement health checks and alerts that log every failover event, notify the right people, and warn if failover happens too often or if traffic patterns change unexpectedly. Use a simple dashboard to track failover latency, downtime, and service reachability. Document the test cadence, assign ownership, and schedule regular automated tests (for example monthly) so you know what to expect and can catch issues before a real outage.
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What automated checks and alerts should I set to prove cellular backup is really ready?
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