Outline and discuss with your course mate the design of

Outline and discuss with your course mate the design of a scheme that uses message retransmissions with IP multicast to overcome the problem of dropped messages. Your scheme should take the following points into account:
i)there may be multiple senders; ii)generally only a small proportion of messages are dropped; iii)unlike the request-reply protocol recipients may not necessarily send a message within any particular time limit.
Assume that messages that are not dropped arrive in sender ordering.
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