Given slow start phase start at cwnd = 2MSS
Threshold = 16MSS
Now it given that TO occcurs after 7th transmission
2 | 4 | 8 | 16 | 17 | 18 | 19 (Timeout New TH = 19/2 = 7.5 ==> 8) | 1 | 2 | 4 | 8 (Threshold reached CA now) | 9 | 10 | 11 | 12
| ==> RTT
after 14 RTT ==> 12MSS