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d) Design a three-stage space-division switch with N = 450 with k = 8 and n = 18. (2) (1) (1) (1) Draw the configuration
d) Design a three-stage space-division switch with N = 450 with k = 8 and n = 18. (2) (1) (1) (1) Draw the configuration diagram. ii. Calculate the total number of crosspoints. iii. Find the possible number of simultaneous connections. iv. Examine the possible number of simultaneous connections if we use in a single-stage crossbar. Find the blocking factor. e) Redesign the configuration of the previous three-stage 450 x 450 crossbar switch using the Clos criteria. Draw the configuration diagram with Clos criteria justification. Calculate the total number of crosspoints. iii. Compare it to the number of crosspoints of a single-stage crossbar. Compare it to the minimum number of crosspoints according to the Clos criteria. Why do we use Clos criteria in multistage switches? (2) (1)
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