In a network using SR protocol with m=4 and the sending window of size 8,the value of variables are Sf=62,Sn=67 and Rn=64.Packet 5 has already been acknowledges at the sender's site;packet 65 and 66 are received out of order at the receiver site.Assume that the network does not duplicate the packet.
a.What are the sequence numbers of pending data packets(in transit,corrupted or lost)?
b.What are the acknowledgment numbers of pending ACK packets(in transit,corrupted or lost)?
Sf=first outstanding packet
Sn=Next to send packet
Rn=Next packet expected at receiver side
