If the RSTP port cost is 2,000,000, what is the corresponding link speed?

The port cost in RSTP (Rapid Spanning Tree Protocol) is calculated based on the speed of the link. In RSTP, the link speed is inversely related to the port cost, meaning a lower port cost corresponds to a higher link speed.

The standard port costs for Ethernet links are as follows:

• 10 Mbps has a port cost of 100.

• 100 Mbps has a port cost of 19.

• 1 Gbps has a port cost of 4.

• 10 Gbps has a port cost of 2.

Given a port cost of 2,000,000, this matches the standard port cost for a 10 Gbps link, as port costs are usually expressed as metrics, and a typical configuration for 10 Gbps would involve a much lower cost than 2,000,000. Hence, there may be a misunderstanding in the question, as the corresponding speed for a port cost of 2,000,000 is indeed one that does not reflect standard costs directly.

Thus, recognizing the standard measures is essential, and given the table, 10 Gbps is the correct interpretation for a minimized cost in RSTP. Each link speed correlates with its respective cost,