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Cod
join:2000-07-05
Greensboro, NC
| Umm, this statement baffles me
from Flex's webpage:
Caveat
"If you plan on running a real-time server, or want to play real-time games or lots of interactive stuffs, be advised that ADSL is not a good way to do it. ADSL bandwidth is spotty in nature and individual packets may/will have varying amounts of latency (delays) that will drive your Half-Life gaming out of your mind. So don't do ADSL if you're thinking real-time applications."
»www.flex.com/adsl/index2.html
-about 1/4th down the page-
Umm, Individual ADSL bandwidth as he stated is NOT spotty in nature. Where did he get that from? There are literally thousands of people (many here on BBR) who play Half life based games and the "latency delays" he describes are a baseless and utterly false statement.
I was really getting into their hype until I read that bunch of BS above. | |
LeftofSanity
@208.17.x.x
| From the website also......
From your ADSL modem, the line goes to a DSLAM shelf (along with 96 other ADSL
users like yourself, some at Bronze, others may be at Platinum), and from there to
a T1 link to the Frame Relay Cloud. I hope this is clear to you, that ninety six other
users sucking up from 768Kbps or higher from a single 1536Kbps line. Think, if all
96 ADSL users downloaded at 768Kbps, that would be a total of 45Mbps, out of a
1.536Mbps T1 line. Obviously this ain't gonna happen. The DSLAM shelf controller
will DROP PACKETS somewhat randomly from everyone's feed. When packets get dropped, this
creates a negative feedback situation, as your computer will tell the sending computer
to re-send the original data all over again, creating even more traffic, that will
be partially dropped by the DSLAM, and then over and over again! Evil.
I don't know how Verizon can with a straight face dump 96 ADSL users of various speeds
ontop a single shelf serviced by a measly T1 1536Kbps line. | |
Cod
join:2000-07-05
Greensboro, NC
| said by LeftofSanity:
From the website also......
From your ADSL modem, the line goes to a DSLAM shelf (along with 96 other ADSL
users like yourself, some at Bronze, others may be at Platinum), and from there to
a T1 link to the Frame Relay Cloud. I hope this is clear to you, that ninety six other
users sucking up from 768Kbps or higher from a single 1536Kbps line. Think, if all
96 ADSL users downloaded at 768Kbps, that would be a total of 45Mbps, out of a
1.536Mbps T1 line. Obviously this ain't gonna happen. The DSLAM shelf controller
will DROP PACKETS somewhat randomly from everyone's feed. When packets get dropped, this
creates a negative feedback situation, as your computer will tell the sending computer
to re-send the original data all over again, creating even more traffic, that will
be partially dropped by the DSLAM, and then over and over again! Evil.
I don't know how Verizon can with a straight face dump 96 ADSL users of various speeds
ontop a single shelf serviced by a measly T1 1536Kbps line.
Verizon doesn't use a single T-1 to feed 96 customers nor does any other ILEC. Was he insinuating that Verizon does this? BellSouth uses a DS3 for 96 customers (45mb aka T-3) and monitor that link continously for any sort of 'high load' issues. Now you can 'bond' several T-1s together for smaller RT applications that may only have 24-48 customers and create a virtual (for example) 12 MB pipe (8 T-1's bonded).
If he (Flex)is using a T-1, *gasp* for 96 customers, then hell yah, they are gonna be having 'latency issues' while playing online games, Half life, etc. heh- | |
Freezone
join:2000-09-29
Southfield, MI
| reply to LeftofSanity
They were making exscuses ahead oftime for them sucking as an isp. Although to be honest back in 2000 or so when this was written ping times for most dsl was not good at all. Now they have it down to a science. I remember when I was onvoy and I had a 90 ms hop to the gate way, it seemed like every one sucked back then at least in my area. | |
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