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    Guys iam a third year computer networks student and I need some help with following questions. Can you guys please go step by step and show me how to work it out I have exam next week and I dont understand nothing when it comes to doing the calcuations part of my exam iam totally relying on written questions component.

    Given the following values at Router B, calculate the transmission rate, R, required from Router B in order to achieve a Traffic Intensity at Router B of 0.6:
    s = propagation speed of the link from B = 2.5 * 108 meters per second
    a = average arrival rate of packets at B = 600 packets/second
    L = specified packet length for all packets arriving at B = 1000 bits
    Q = number of upstream routers in the link to B = 2
    d = distance to next-hop router from B = 2800km
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