Question: In protocol 6, when a data frame arrives, a check is made to see if the sequence number differs from the one expected and nonak

In protocol 6, when a data frame arrives, a check is made to see if the sequence number differs from the one expected and nonak is true. If both conditions hold, a NAK is sent. Otherwise, the auxiliary timer is started. Suppose that the else clause were omitted. Would this change affect the protocol's correctness?

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