For a while now, I've been having some issues with our ADSL connection and it looks like the issue has been fixed (fingers crossed) by increasing the maximum number of TCP/IP sessions on my router (see
http://community.plus.net/forum/index.php/topic,91154.0.html)
In the meantime, the IP Profile seems to have dropped from 6500 to 5500 and interleaving is enabled on my line. I don't know if these were applied by PlusNet/BT in response to my earlier calls, but my stats are showing:
Vendor ID : 00B5GSPN
Revision Number : T93.3.23
Serial number : 123456789abcdx
Self Test : Passed Framing Structure : Framing-3
Standard : G.dmt Trellis Coding : Disable
Local Tx. Power(dB) : 11.95 Remote Tx.Power(dB) : 19.67
Local Line Atten(dB) : 32.5 Remote Line Atten(dB) : 14.0
Local SNR Margin(dB) : 6.0 Remote SNR Margin(dB) : 21.0
Up SValue : 8 Down SValue : 1
Up DValue : 2 Down DValue : 16
UpIntrlvd UpFast DownIntrlvd DownFast
AS0(kbps): - - 6720 0
AS1(kbps): - - 0 0
LS0(kbps): 448 0 - -
LS1(kbps): 0 0 - -
RValue : 16 0 16 0
According to the BT speed tester, my IP Profile is 5500 (I'm pretty sure it used to be 6500) and I'm wondering how to increase this - from reading about IP Profiles and adaptive max logic (
http://www.kitz.co.uk/adsl/IPprofile.htm) I understand that it should try to increase (as my sync speed of 6720 is towards the top of the current band and
http://www.kitz.co.uk/adsl/max_speed_calc.php indicates 6500 should be possible based on my loop loss/attenuation), but I didn't know if it is being limited by PlusNet/BT?
Also, interleaving is on, which I understand is generally not required unless there are a lot of line errors - is there a way to change that and see if it is really necessary?
If anyone has any comments/suggestions, I'd be glad to hear them ((also, feel free to shoot me down if I've missed something/my logic doesn't stack up/you think my line stats suggest I'm going as fast as I should be!)
Thanks for your help, Mark Wilson (nikkijames' IT guy)
