Monitor Cloud VPN bandwidth and trigger alerts when traffic approaches capacity so you can decide on adding links or moving to Dedicated Interconnect.

The correct answer is to use Monitoring Query Language (MQL) in Cloud Monitoring. MQL allows you to create highly customized alerts based on specific metrics, including VPN bandwidth utilization, and define thresholds for triggering notifications. This provides the granular control needed to proactively manage VPN capacity. Network Intelligence Center focuses on network performance and diagnostics, including packet drops, but isn't primarily designed for custom bandwidth utilization alerting. The default VPN dashboard and the built-in monitoring view in Hybrid Connectivity offer basic monitoring, but they typically lack the advanced customization and alerting capabilities that MQL provides for proactive capacity management.