多项选择题
Which two IS-IS hello values must match to form a Level 1 IS-IS adjacency?()
A.AFI B.Area C.System ID D.N-Selector
单项选择题 Whichcommandatthe[editprotocolsisis]hierarchylevelforcesroutedtraffictoavoidthisrouter?()
多项选择题 WhichtwostatementsaboutISreachabilityTLV(TLV2)andtheextendedISreachability(TLV22)aretrue?()
单项选择题 InIS-IS,howlongwilltherestarthelperkeeptherestartingrouterintheupstate?()