DSL
Let's take a look at SNR Margin Tweaks:
The command to be used is
where {value} can be as shown in the table above taken from http://www.kitz.co.uk/routers/dg834GT_targetsnr.htm such that if more stable connection is desired, 150 or 200 should be used and if faster connection/sync is required at cost of stability, 50 or 25 could be used! Note that for PTCL, there is no max speed package as of today, so there is no point in going for lower SNR Margins!
For my case, I have applied the 150 value just to make sure that only good tones are selected for bit loading increasing stability!
Since, stability is mostly the issue with customers of PTCL, here are some additional commands that might improve line stability:
where, 'i24k' is supposed to dedicate more memory to interleaving and 'phyReXmt' is likely to protect from impulse noise and has 3 modes: 1 for downstream only, 2 for Upstream only and 3 for both! Most of these are proprietary to Broadcom and may not have any effect but worth a try!
If latency is to be reduced, '--sesdrop on' can be added to the command above but it may impact stability of the line!
Now, to confirm if settings have been applied:
Finally, to save these settings:
WIRELESS
Let's also take a quick look at settings for wireless side:
For checking current transmit power:
So, we may set at a reasonable 71mw
Next, the country domain can also be set (like EU countries make use of 13 channels):
I usually change to UK:
There are others (please refer to part 1) that may be used for further tweaking the performance, but, that may also break compatibility with older/other devices!
Unfortunately, there is no way that I have figured out (though honestly I haven't given much time to research this) to save the changes made to wireless settings from the commandline!
Let me know if you find out!
Let's take a look at SNR Margin Tweaks:
The command to be used is
> xdslctl configure --snr {value} N |
Change in target noise margin (dB) |
| 200 | + 6dB |
| 150 | + 3dB |
| 100 | + 0dB |
| 50 | - 3dB |
| 25 | - 4.5db |
| 1 | - 5.5dB |
| 65500 | - 9 dB |
| 65450 | - 12 dB |
where {value} can be as shown in the table above taken from http://www.kitz.co.uk/routers/dg834GT_targetsnr.htm such that if more stable connection is desired, 150 or 200 should be used and if faster connection/sync is required at cost of stability, 50 or 25 could be used! Note that for PTCL, there is no max speed package as of today, so there is no point in going for lower SNR Margins!
For my case, I have applied the 150 value just to make sure that only good tones are selected for bit loading increasing stability!
Since, stability is mostly the issue with customers of PTCL, here are some additional commands that might improve line stability:
> xdslctl configure --snr 150 --i24k on --phyReXmt 1
where, 'i24k' is supposed to dedicate more memory to interleaving and 'phyReXmt' is likely to protect from impulse noise and has 3 modes: 1 for downstream only, 2 for Upstream only and 3 for both! Most of these are proprietary to Broadcom and may not have any effect but worth a try!
If latency is to be reduced, '--sesdrop on' can be added to the command above but it may impact stability of the line!
Now, to confirm if settings have been applied:
> xdslctl profile --show
> xdslctl info --show
Finally, to save these settings:
> xdslctl profile --save
WIRELESS
Let's also take a quick look at settings for wireless side:
For checking current transmit power:
> wlctl txpwr
So, we may set at a reasonable 71mw
> wlctl txpwr 71
> wlctl txpwr1 /?
Next, the country domain can also be set (like EU countries make use of 13 channels):
> wlctl country
> wlctl country /?
I usually change to UK:
> wlctl country "GB"
There are others (please refer to part 1) that may be used for further tweaking the performance, but, that may also break compatibility with older/other devices!
Unfortunately, there is no way that I have figured out (though honestly I haven't given much time to research this) to save the changes made to wireless settings from the commandline!
Let me know if you find out!
Comments
Post a Comment