In reply to a post by LSDA:

In reply to a post by BatBoy:

In reply to a post by LSDA:

... nested quotes trimmed ...

The line syncs at a higher speed uncapped than capped therefore your conclusion is false.

You conclusion is based on minimal stats, therefore is wrong.

Your response is argumentative and illogical.

Your idea has already been shown to be false by another poster. Full stats, including tone graphs are required to indicate what is really going on.

In reply to a post by BatBoy:

Your idea has already been shown to be false by another poster. Full stats, including tone graphs are required to indicate what is really going on.

Who is this other poster?

I expect plenty of stats to be uploaded by posters in the coming weeks including my own. The tone graphs do reveal quite a bit.

http://forums.thinkbroadband.com/general/t/4067366-o...

In reply to a post by BatBoy:

http://forums.thinkbroadband.com/general/t/4067366-o...

It has been suggested that different routers behave differently, and I think that is a plausible explanation. However, looking more closely at John's stats, it looks like his line is noisy. The upstream sync is particularly poor at 4dB attenuation.

Edited by deleted (Sat 26-Nov-11 16:43:05)

As I said, line fault

In reply to a post by BatBoy:

As I said, line fault

Your response is illogical.

I'd prefer to call it inspired.

In reply to a post by BatBoy:

I'd prefer to call it inspired.

My stats on O2 line capped to 8Mbps (line does approx 17Mbps uncapped). Netgear router.

ADSL Link Downstream Upstream
Connection Speed 8188 kbps 1087 kbps
Line Attenuation 20 db 4 db
Noise Margin 14 db 6 db

That connection will almost certainly be interleaved, and depending on the inp setting this can also have an affect on sync speed boith upstream as well as downstream,
then there is the possibility that the router reports the attenuation incorrectly , but as said there could be a line fault but i think it is unlikely ,
Also when i forced a sync onto the capped 12mbit service, my upstream sync was also reduced by a few hundred kbps, so it could be down to the way be/o2 configured that profile

In reply to a post by Anonymous:

In reply to a post by BatBoy:

I'd prefer to call it inspired.

My stats on O2 line capped to 8Mbps (line does approx 17Mbps uncapped). Netgear router.

ADSL Link Downstream Upstream
Connection Speed 8188 kbps 1087 kbps
Line Attenuation 20 db 4 db
Noise Margin 14 db 6 db

That connection will almost certainly be interleaved, and depending on the inp setting this can also have an affect on sync speed boith upstream as well as downstream,
then there is the possibility that the router reports the attenuation incorrectly , but as said there could be a line fault but i think it is unlikely ,
Also when i forced a sync onto the capped 12mbit service, my upstream sync was also reduced by a few hundred kbps, so it could be down to the way be/o2 configured that profile

The point is that the SNRM was not adjusted as claimed, not that this connection has a line fault.

In reply to a post by BatBoy:

It's a line fault. That really is the SNRM and max sync at max power.

Your conclusion is also shown false by other posters here showing other routers reporting higher more normal SNRMs on the same O2 capped line, while the O2 router refuses to report anything but 6.5 dB..

Here an example of mine taken within minutes of each other:

O2 8 Meg LLU
==========
Router:......................D-Link..........O2
Downstream
----------
Speedtest (bps).........7.1M............7.2M
Sync Speed (bps).......8192K.........8187K
Attenuation (dB)........27...............27
SNM (dB)...................13................6.5
Power (dB)................17...............18