Problem: In a network using the Selective-Repeat protocol with m=4 and the sending window size 8, the value of variables are Sf=62, Sn=67, and Rn=64. Packet 65 has already been acknowledged at the sender site; packets 65 and 66 are received out-of-order at the receiver site. Assume that the network does not duplicate the packets.
a. What are the sequence numbers of pending data packets (in transit, corrupted, or lost)?
b. What are the acknowledged numbers of pending ACK packets (in transit, corrupted, or lost)