The total number of cross points in a three-stage switch, with N input lines, divided into groups of n lines, and k crossbars in the middle stage, is typically calculated as 2Nk + k(N/n)^2.
Consider a single-stage switch (200 x 200) with number of input lines (N) as 200, the number of crossbars (k) in the middle stage is 4 and the N input lines are divided into groups, each of n lines, consider n=20. The total number of cross points in a three-stage switch for the given data is -
Asked in Analyst Cum Programmer (Deputy Director) 2024 · Topic: Data Communication and Transmission Modes (Basic Switching Techniques (Circuit, Packet, Message Switching))
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