[ubuntu-uk] {Spam?} Re: transferring files between Ubuntu and XP slow!!!!

[Tony Travis]

Kris Douglas wrote:
> [...]
>> People have already pointed out that the most likely problem is that you
>> are using a crossover cable where you should be using a straight-through
>> cable, but you appear to have ignored them, or not bothered to read
>> their replies thoroughly. I expect I could start quoting nursery rhymes
>> such as humpty dumpy sat on a wall humpty dumpty had a great fall and
>> you wouldn't notice because you aren't paying attention to people's
>> replies to your questions.
> 
> I entirely agree, Andy.
> 
>> An ethernet controller rated for 10Mb/s would therefore produce a
>> maximum throughput of (10000/8) = 1250kB/s = 1.25MB/s . Even if you only
>> got half that, say 625kB/s, this still vastly exceeds your 47.7kB/s.

Hey, that's a bit harsh!

It's not simply eight bits per byte for ethernet packets, it's more 
complicated than that and you're not taking into account collisions.

Ethernet is a broadcast medium and at more than 60% utilisation of the 
available bandwidth an ethernet network is considered to be saturated.

However, you're quite right that this is a lot less than 47.7kB/s...

	Tony.
-- 
Dr. A.J.Travis,                     |  mailto:ajt at rri.sari.ac.uk
Rowett Research Institute,          |    http://www.rri.sari.ac.uk/~ajt
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