It's a set of automated rules that control network congestion. 這是一組控制網路擁擠程度的自動規則。
But as these flat networks scale upward, the volume of broadcast traffic increases and network congestion and performance degradation results. 但當這些簡單網路向上擴大時,廣播信息流的數據量就增大,從而產生網路擁擠和性能下降。