Final answer:
The RSTP Port Cost for a speed of 1 Gbps is 2,000. It is a part of IEEE 802.1w standard, which helps in fast network convergence by giving preferential pathway to higher speed links.
Step-by-step explanation:
The RSTP (Rapid Spanning Tree Protocol) Port Cost for a speed of 1 Gbps is 2,000. This value is part of the standardized port costs defined in IEEE 802.1w to ensure consistent path selection and spanning-tree recalculation in different network scenarios. Lower cost paths are preferred, and for higher speeds like 1 Gbps, the cost is reduced to signify a preferential pathway compared to slower speeds.
RSTP is used to prevent loops in a network by creating a spanning tree that logically blocks redundant paths. It is an enhancement of the Spanning Tree Protocol (STP) and provides for faster spanning tree convergence after a topology change.
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