3.3.2.5 Lease Break Acknowledgment Timer
If the server implements the SMB 2.1 or SMB 3.x dialect family and supports leasing, this timer controls the amount of time the server waits for a Lease Break acknowledgment from the client (as specified in section 2.2.24.2) after sending a lease break notification (as specified in section 2.2.23.2) to the client. The server MUST wait for an interval of time greater than or equal to the lease break acknowledgment timer. This timer MUST be smaller than the client Request Expiration time, as specified in section 3.2.6.1.<219>