T1 Math question

[TheSaint]

If you had a standard 1.5 Mbps T1, and it ran 24 hours a day maxed out, what is that in GB per month downloaded?

[TheSaint]

*leap*

[smk]

You can do roughly 500gigs per month if it were pegged at 1.5mbit all the time never missing a packet.

[psyko514]

42

[buddyjuf]

486gigabytes from my calculations

[webair]

Bandwidth Conversion Utility

[lexr]

Hmm, the webair thing gives me 316.406250 GB/month

But I'm getting 459.2235 GB/month based on my calculations.

1,500,000 bits per second. Convert that to bits per month using an average of 30.4375 days/month. Then divide that by 8 to get bytes. Then divide that by 2^30 to get Gigabytes.

Either I'm screwing up somewhere in the calculations, don't know how to use the webair converstion util or it's just too late in the night for me to be doing math.

[lexr]

Though, I guess I'm somewhat off too since a T1 is ~1.544 Mbps

Using 1.544 I get 472.6928 GB/month maximum usage if you manage to squeeze a constant flow of packets (without loss) through the pipe.

[Baal]

Originally posted by lexr
Hmm, the webair thing gives me 316.406250 GB/month

But I'm getting 459.2235 GB/month based on my calculations.

1,500,000 bits per second. Convert that to bits per month using an average of 30.4375 days/month. Then divide that by 8 to get bytes. Then divide that by 2^30 to get Gigabytes.

Either I'm screwing up somewhere in the calculations, don't know how to use the webair converstion util or it's just too late in the night for me to be doing math.

The webair utility ignores any decimal values in the calculation, so the calc for 1.5 mb/s is really calculated for 1 mb/s (and 1 mb/s is 316 GB/month). Do the calc as 1500000 bits/sec to GB/month and the calc will be correct.