Answer Posted / krishnamohan

TCP connection establishment happens in a 3-way handshake
between the connecting peers:
1. Peer1 sends "SYN, seq # i" to Peer 2
2. Peer2 accepts SYN from Peer1 and sends "SYN-ACK i+1, SYN,
Seq # j"
3. Peer1 accepts ACK and sends "ACK j+1"

Here i is starting of sequence for packets going from Peer1
to Peer2.
j is starting of sequence for packets going from Peer2 to Peer1.

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