A split input sunshine switch architecture
Terry Bearly, Jagan P. Agrawal · International Journal of Communication Systems · 1999
In this paper, we present the split input sunshine switch, a new ATM switch architecture based on the sunshine switch which utilizes two input switching fabrics (ISFs), primary and secondary, within a sunshine switch architecture. The primary ISF is of size N×N, and the secondary ISF is of size N/z×N/z, where z is a non-zero power of two. The introduction of the secondary ISF allows a portion of the primary ISFs input lines to be used to handle cells to be recycled. For medium and large switch sizes, the hardware requirement of this new architecture is shown to be less than that of the original sunshine design for the same cell loss performance. A methodology based on the conventional sunshine switch performance and computer simulation of the new architecture has been developed and used to select design parameters of the new architecture. Copyright © 1999 John Wiley & Sons, Ltd.