E
Embattle
Guest
In this Months PCPRO(Sept), David Cassidy talks about ADSL in his real world computing networks section.
Here are just a few sections from it:
'BT learned from that trial a few priorities for rolling out ADSL on a more widespread basis. It knows it can't let every potential 512kbits/sec user on at that speed, because to buy that much bandwidth would be hugely uneconomical. It also knows that early adopters will tweak the system if given half the chance, and that wannabe hackers are hovering around. And it knows that it has to preserve the revenue it gets from existing high-rental conections fron its larger Net users.'
'My opinion of ADSL, as you might expect, is luke-warm. I think BT's choice of wording on its site could easily backfire - it appears to promise a 512kbits/sec connection, when in fact is only in very ideal circumstances will an end user see 512kbits/sec. The thruth, as known to ISPs and those running small networks with properly-sized external connections, is that few people use anything like the bandwidth they think they're using, and every trick in the book can be pulled - proxies, local and romote caches, network 'chokes' on each end user - without the end user being any the wiser'
Well thats just two parts of it that make interesting reading.
Here are just a few sections from it:
'BT learned from that trial a few priorities for rolling out ADSL on a more widespread basis. It knows it can't let every potential 512kbits/sec user on at that speed, because to buy that much bandwidth would be hugely uneconomical. It also knows that early adopters will tweak the system if given half the chance, and that wannabe hackers are hovering around. And it knows that it has to preserve the revenue it gets from existing high-rental conections fron its larger Net users.'
'My opinion of ADSL, as you might expect, is luke-warm. I think BT's choice of wording on its site could easily backfire - it appears to promise a 512kbits/sec connection, when in fact is only in very ideal circumstances will an end user see 512kbits/sec. The thruth, as known to ISPs and those running small networks with properly-sized external connections, is that few people use anything like the bandwidth they think they're using, and every trick in the book can be pulled - proxies, local and romote caches, network 'chokes' on each end user - without the end user being any the wiser'
Well thats just two parts of it that make interesting reading.
