题目内容

Whatshouldyoudotoreducespanning-treeprotocolBPDUtrafficduringextendedperiodsofinstabilityinyourVLANs?()

A. CombinealltheVLANspanningtreesintoasinglespanningtree
B. Setforwarddelayandmax-agetimerstothemaximumpossiblevalues
C. Noneofthechoices
D. ChangetherouterVTPservermode
E. Disabletherootbridge

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Iftherootbridgefails,configurationBPDUswillnolongerbesent.WhichSTPtimerwillhavetoexpirebeforetheotherswitchescanactivelyrestoreconnectivitywithtopologychangeprocedureofSTP?()

A. hellotimer
BPDUtimer
C. Forward_delaytimer
D. Max_agetimer
E. Deadtimer
F. Waittimer

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