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The novel resources provisioning scheme consists of scheduling and allocating resources earlier than the time this reservation takes place. The resources are effectively reserved at the agreed upon scheduled time. In this paper we describe a novel scheme for providing resource reservation in advance in time slotted optical network. In this network a flows of time slots are established between source nodes and destinations. The user specifies the number of slots he/she requires, the start time of the reservation, and the duration of the reservation. The proposed scheme provides the user with the number of slots that can be reserved at the start time and other times in the future carefully selected.