多项选择题 TheEtherChannelbetweenyourLANswitchandtheInternetrouterisnotload-balancingefficiently.Ontheswitch，thereareseveralworkstationswithvalidIPranges.Whichload-balancealgorithmscanyouuseintheswitchinordertooptimizethisloadbalancing？（）
问答题 whatisthekeyconceptbehindtheMSDP？
问答题 whatistheadvantageofpolicing？