to put it another way, 2,500,000 cells x 53 bytes per cell = 132,500,000
bytes per second = 1,060,000,000 bits per second - over a gigabit. over 7
times the capacity of an OC3. not even full duplex hype covers this one.
all these errors in all these sources really pisses me off.
Chuck
Phil Barker <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi,
> Just working my way through this quite excellent
> paper at the moment by Galina Pildush.
>
> Page 11, first paragraph (A4 - that is)
>
> "the throughput of an OC-3 link (155Mbps)is
> approximately 2.5 million cells per second."
>
> 155 * 10^6 = 155000000 bits per second.
> 155000000/8 = 19375000 bytes per second.
> 19375000/53 (48 payload + 5 byte header) = 365566
> cells/second, approx 365 thousand cells/sec.
>
> Conversely to achieve a throughput of 2.5 million
> cells/second.
>
> 2.5 * 10^6 = 2500000 cells/sec
> 2500000 * 53 = 132500000 bytes/sec
> 132500000 * 8 = 1060000000 bits per sec
>
> Thus requiring a Gigabit pipe.
>
> Can someone check my logic ?
>
> Regards,
>
> Phil.
>
>
>
>
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