This read-only Gauge32 reports the percentage utilization, or percentage of wire speed, on Port 1 during this 15-minute long-term sample; divide the raw value by 1000 to get the real percentage, with 4294967294 meaning unknown. An admin uses this as the primary capacity indicator for Port 1, alerting when utilization approaches wire speed and traffic is at risk of being dropped. For example, a raw Utilization value of 850, which is 0.85% of wire speed, during a 15-minute long-term sample on Port 1 shows plenty of headroom, whereas a value near 100000, which is 100%, would mean Port 1 is saturated.