This reports the percentage of the modem's transmit bandwidth currently being used, from 0 to 100. Because satellite bandwidth is typically the most expensive and constrained resource in this kind of deployment, this single percentage is the number an admin checks first to decide if a site needs a bandwidth upgrade or tighter QoS shaping. For example, utilization sitting at 95% during business hours every day is the trigger to either add bandwidth or tighten per-application caps via the QoS rules.