A.PIM B.IGMPSnooping C.IGMP D.MVR
A.(S,G)或(*,G)表項(xiàng)的入接口 B.(S,G)或(*:G)表項(xiàng)的上游鄰居 C.(S,G)或(*,G)表項(xiàng)的下游接口 D.(S,G)或(*:G)表項(xiàng)的老化時(shí)間
A.STP B.RRPP C.Smart-Link D.動(dòng)態(tài)路由 E.鏈路聚合