Whatisrequiredtoenabletheuseofmetricslargerthan63fortrafficengineeringinIS-IS?()
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A.Nothing,widemetricsareusedbydefaultinIS-IS
B.Enablewide-metrics-onlyunderprotocolIS-IS
C.Enabletraffic-engineeringunderprotocolsIS-IS
D.DisableTVL’s2and128whichcarrythe6-bitmetrics(0-63).
参考答案: