[Sephiroth]

Originally Posted by altis

Try this:

http://homepage.ntlworld.com/draig.g...iles/frame.htm

I'm grateful for this link.

It is a good primer, but written in the 512Kbps days - 8 or 9 years ago, I guess. Now we're at 20 & 50 Mbps, it would be interesting to see an update; they haven't moved the UBR to the node so we're begining to unravel the postcode lottery issues, I'd have thought.