Patent ID: 6819870
Filing Date: 2004-11-16
Classification: H04Q

Abstract:
A method for wavelength division multiplexing (WDM) fiber delay line (FDL) optical buffer routing and scheduling of conflicted data packets through an optical router with memory, the method comprising the steps of:ordering of each conflicted data packet; selecting each of the data packets in turn for routing based on the ordering sequence; assigning each conflicted data packet a wavelength in said FDL optical buffer from (n) available wavelengths in said FDL, sequentially, wherein the sequencing of (n) is (n)=&lgr;1, &lgr;2, . . . , &lgr;n, &lgr;1, &lgr;2, . . . , &lgr;n, . . . ; converting each data packet to the sequentially assigned wavelength (n); and routing the data packets to an optical buffer according to the wavelength assignment, wherein if the wavelength of the assigned FDL optical buffer is fully occupied the data packet is dropped.