Adverse traffic patterns are caused by TX and RX traffic loads that result in high resource use of multicast and broadcast communications. The use of multicast and broadcast requires devices to clone packets, which reduces CPU availability. This is usually not a problem, unless the traffic load begins to exceed the available CPU capacity. The CPU threshold for APs is 90%. The CPU threshold for switches is 50%. Exceeding the CPU capacity can increase latency and packet loss, and might even bring a device down.