TCP StateMachineChanges
MIGRATE_WAIT
2MSL timeout
recv: SYN (migrate T, R)
send: SYN, ACK
recv: RST
appl: migrate
send: SYN (migrate T, R)
recv: SYN (migrate T, R)
send: SYN, ACK
2 new transitions between existing states
- and -
1 new state handles pathological race condition
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