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When configuring switch priority in a network that utilizes UplinkFast, the value of 49152 is commonly recommended. UplinkFast is a feature used primarily in situations where a switch may have a direct connection to multiple upstream switches. It allows for a faster transition to the active path in the event of a link failure, thereby enhancing network redundancy and ensuring uptime.

The specific priority value of 49152 is significant because it is higher than the default Bridge Protocol Data Unit (BPDU) priority of 32768. This means that a switch configured with this priority will be more likely to become the root bridge in cases where a switch performing UplinkFast needs to select a new root due to a topology change or link failure. By assigning this value, the configuration ensures that the switch can quickly takeover as the root without introducing extended Convergence times that lower priority values would necessitate.

In contrast, the other values such as 61440, 8192, and 32768 either do not optimally serve the purpose of faster failover with UplinkFast or do not adhere to the typical recommendations for prioritizing switches in a redundant topology. Therefore, using 49152 is the preferred approach for systems utilizing UplinkFast, making it advantageous for