The Rapid Spanning Tree Protocol includes two integrated 802.1D enhancements, which are Uplink Fast and Backbone Fast. Although both of these enhancements are Cisco proprietary enhancement features designed for 802.1D, similar open-standard functionality has been integrated into RSTP based on these two features, allowing for faster convergence and failure restoration than traditional STP. These features will be described in this section.
RSTP Integrated Uplink Fast Functionality
Another form of immediate transition to the forwarding state included in RSTP is similar to the Uplink Fast Spanning Tree Protocol extension, with some notable differences. This operation is illustrated below . . .
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