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?()
- AOnly UplinkFast and BackboneFast are specified in 802.1w;PortFast must be manually configured.
- BOnly PortFast is specified in 802.1w;UplinkFast and BackboneFast must be manually configured.
- CNone of the proprietary Cisco enhancements are specified in 802.1w.
- DPortFast,UplinkFast,and BackboneFast are specified in 802.1w.