[mrtg] Re: Maxbytes for 1 meg serial?

Merton Campbell Crockett mcc at TO.GD-ES.COM
Fri Dec 10 07:19:56 MET 1999


On Thu, 9 Dec 1999, Nick Bastin wrote:

> on 12/9/99 8:08 PM, Marc-Adrian Napoli at marcadrian at cia.com.au wrote:
> 
> > 1megabit link - 125000 (Never gets higher than about 100000)
> 
> Maybe I'm missing something here, but last I checked a 1mbit link should get
> a maximum of 131072 bytes per second.  In my book, a megabit is 1/8 of a
> megabyte, which is 1024k, which makes a megabit 128k, which makes it 131072
> bytes.  Of course, I could be wrong and we really do count bandwidth with a
> megabit as 125k, but that doesn't make any sense, and even if we did, a
> kilobyte is still 1024 bytes, and that would make maxbytes 128000.

Signaling speeds are decimal, i.e. 1 Mb is 1000000, 10 Mb is 10000000.  As a
result, a 10 Mb circuit (ethernet) should not exceed 125000 bytes/second.  
Or, roughly 122.07 KB/second if you assume 1K equals 1024 bytes.

Merton Campbell Crockett

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