We learned from a support ticket (and experience) that network utilization is monitoring in full duplex, therefore the maximum utilization is 200% instead of 100%. Unfortunately, I'm unable to modify our monitoring configuration to have thresholds above 100%. In a perfect world, network utilization would be split into two alerts, one for send and one for receive, this way we could manage the utilization limits separately. But if the perfect solution is not possible, then we'd at least like to be able to enter thresholds above 100% so we can alert at 150% utilization (for example).