Prior to 802.1w,Cisco implemented a number of proprietary enhancements to 802.1D to improve convergence in a Layer 2 network. Which statement is correct?()

A . Only UplinkFast and BackboneFast are specified in 802.1w;PortFast must be manually configured. B . Only PortFast is specified in 802.1w;UplinkFast and BackboneFast must be manually configured. C . None of the proprietary Cisco enhancements are specified in 802.1w. D . PortFast,UplinkFast,and BackboneFast are specified in 802.1w.

时间:2022-09-03 03:43:19 所属题库:CCIE系列认证综合练习题库

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