ADSL setting to optimized streamyx connection speed
Sunday, June 4, 2006 6:07:33 AM
Later, he called his friends, few technicians came over to check my neighborhood telephone box, i donno what is that call, it seems like a switch. They told me, the link is good until that box. The problem is the wire from that box to my house, he suggested me would like to call a cable guy to reroute the cable to my house, where I know that would be expensive. They went back with that excuse, later on a girl called to close the case, my connection is still not good.
I decided to change my router settings in order to improve my connections, so search for information that I can obtain at adsl configuration page of the router. ADSL (Asymmetric Digital Subscriber Line) enables faster data transmission over copper telephone lines than a conventional modem can provide.
For conventional ADSL, downstream rates start at 115 kbit/s (though a minimum offering of 512 kbit/s is more common) and typically reach 8 Mbit/s within 1.5 km (5000 ft) of the DSLAM equipped central office or remote terminal.
Upstream rates start at 64 kbit/s and typically reach 256 kbit/s but can go as high as 1024 kbit/s.
The name ADSL Lite is sometimes used for the slower versions.
Quote from wikipedia.
There have others better ADSL, called ADSL2, which I don't think that is what streamyx was using. My router gives few configuration settings:
Annex Mode Config: (Annex A,Annex B) I choose Auto, and the router give me Annex A
Trellis: (Enable, Disable) Enable.
Trellis, is a modulation scheme which allows highly efficient transmission of information over band-limited channels such as telephone lines.
Handshake Protocol: (G.dmt, G.Lite, T1.413) T1.413, I tried G.Lite, it fails to work.
Bit Swapping: (Enable, Disable) Enable. Not sure what is that but it uses to improve something which I forgot what is that.
The best SNR i can get for my downstream was 14.6, sometimes i get 11.0. But I wanders why my upstream SNR is better 18.0
The Line attenuation for my downstream was 58.6 and for upstream was 36.4 (The higher the worse.)
Conclusion, upstream is better, which it shouldn't be that way.