Algorithm 1 Nagle’s Algorithm

1:procedureTransmit(D) 2:    if window size $>=$ MSS and $\left|D\right|>=$ MSS then 3:        $\mathtt{Send}\left(D\right)$ 4:    else 5:        if data in flight then 6:           $\mathtt{Queue}\left(D\right)$ 7:        else 8:           $\mathtt{Send}\left(D\right)$