Here's another article by Alan Kohler which gives you a little...

Here's another article by Alan Kohler which gives you a little idea about the physical layout of the ASX and insto servers:

"In the Australian Securities Exchange's Sydney data room, which is about the size of a big lounge room, there are six "cuckoos". These are the banks of servers installed by high-frequency traders.

They sit against the wall opposite the ASX servers and each is connected directly into the host by a fat fibre optic pipe. Each cable is precisely the same length by agreement with the ASX so that none gets an advantage; if one server is closer to the input, its cable is looped around to lengthen it.

Think about that: one less metre of optic fibre carrying data at 299.8 million metres per second - that is, the speed of light - would give one share trader an unfair advantage over the rest. It suggests that something pretty quick is going on."

http://www.abc.net.au/news/2012-04-11/kohler-high-frequency-trade-parasites-at-heart-of-asx/3943052

Notice the age of these articles we posted - 2012. Nothing is going to change.