以下試算 1.5M TCP 下載, 理論最大值 = 162.74 kB/s
(Interleave 須 TCP Multi-session 才達得到, Fast 不用)

//////////////////////////////////////

line rate
1500kbps
= 1500000 bps
= 1500000 / 8 Bps
= 1500000 / 8 / 53 cell/s
= 18867.92 cell/s
PCR = 3537.7358

packet length
= 1514 B/packet
= ((1514 + 4 + 8) / 48) cell/packet 小數點無條件進位
= 32 cell/packet
ps. + 4 是 CRC 佔去 4 bytes
ps. + 8 是 ATM layer ? 的 header 的長度

欲求 packet/s
PCR/32 = 110.5542 packet/s
欲求 B/s of Ethernet Frame
110.5542 * 1514 = 167.38 kB/s
欲求 B/s of UDP/TCP long packet
110.5542 * 1472 = 162.74 kB/s