In Prob. 1.14, suppose that no queueing is allowed for server 2. That is, if a customer completing service at server 1 sees that server 2 is idle, she proceeds directly to server 2, as before. However, a customer completing service at server 1 when server 2 is busy with another customer must stay at server 1 until server 2 gets done; this is called blocking. While a customer is blocked from entering server 2, she receives no additional service from server 1, but prevents server 1 from taking the first customer, if any, from queue 1. Furthermore, “fresh” customers continue to arrive to queue 1 during a period of blocking. Compute the same six performance measures as in Prob. 1.14.
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