Patent ID: 6925259
Filing Date: 2005-08-02
Classification: H04J,H04L,H04Q

Abstract:
1. A method for controlling admission of new bandwidth reservation in an WDM optical ring network, comprising: receiving a band width request for a node source-destination pair; determining whether there is sufficient network capacity for the bandwidth request; updating the number of credits per frame to be assigned to input-output pairs whenever the bandwidth is requested and/or previously assigned bandwidth is released; renewing credits by loading queue counters to specified numbers at the beginning of each frame; and reserving time slots available within a frame via a control channel if the queue counters are positive, and decrementing the corresponding queue counter whenever the reservation is made; and assigning a  are satisfied, where W represents the number of wavelengths in the composite packet, k, l, k→i→l are nodes such that node k transmits packets to node l over node i, and a