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### Instruction:
STP-4-PORTFAST_CHANGES_PENDING
### Response:
(Severity: 4), (Category: L2), (Description: The MSTP specification dictates that Portfast state changes should only be made whilst a port is disabled. In order to enact the new portfast configuration, ports should be shutdown.), (Recommended Action: Shut and unshut any interfaces on which portfast configuration has been updated.)
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