Elhana being the very kind person you are. Will you have a look at these stats and tell me what you think my connection should be.
Type : Fast
Noise margin (dB) : 30.3
Attenuation (dB) : 16.0
Attainable download rate (kbps) : 11264
Downstream Upstream
Rate (kbps) ??? 244
What the downstream rate should be on a rate adaptive service or what it currently is?
Ideally if you're on LLU or ADSL Max then you really should be sync'd at the full 8 meg.
It's easy to tell you're not sync'd at that though due to the very high noise margin you have. As a guess I'd say you're probably currently on 2272 or maybe even 1152?
If you are on an ADSL Max or LLU service it's interesting to see your upstream speed isn't sync'd at full, this could indicate other problems.
Is there a table somewhere that gives you an inidication of your synch speed?
I have d/l attenuation 30.5db
noise margin 9.6db
You need your current sync, attenuation and margin in order to calculate a potential maximum rate for your line. Then just drop them into the boxes on the page linked below.
Does that mean that there is a possibility that my line will go faster?
...
Attainable download rate (kbps) : 11264
Your livebox certainly thinks it can get much faster. Not to say it would be perfectly stable to be sync'd at the maximum 8 meg, as I mentioned before your upstream not being 288 suggests there could be some sort of underlying problem.
Elhana
Could you explain (or supply a link to elsewhere) in layman's terms what the various terms in the Livebox stats actually mean and what are good or bad values for each?
e.g. Connection mode, Type, Noise margin (dB), Attenuation (dB), Attainable download rate (kbps)
ADSL firmware version : A2pBT009c1.d17d
Connection mode : G.DMT
Type : Fast
Noise margin (dB) : 30.3
Attenuation (dB) : 16.0
Attainable download rate (kbps) : 10656
ADSL status : Connected [0]
Downstream Upstream
Rate (kbps) 1152 288
Is there a possibility that Orange have capped my line to 1mb?
Also I looked at that broadband checker you provided and it gave me these results:
Current Line Sync (connection) speed in Kilo bits per second (Kbps) 1172
Downstream Line Attenuation (dB): 16.0
Noise Margin, sometimes referred to as Signal to Noise Ratio (SNR): 30.3
If you do not know how to obtain your line stats from your ADSL modem or router then visit Kitz's website which shows how to get these values for lots of kit.
We estimate that if using a rate adaptive up to 8Mbps service your maximum line speed will be: 8128
If you are on a Max product, that uses the IP Profile system (sometimes called BRAS Data Rate) if you maintain the above line speed for 3 days or more your IP Profile would be set to: 7.15Mbps
_________________
Orange Tech support do not know what they are doing...My advice get out while you can.
Could you explain (or supply a link to elsewhere) in layman's terms what the various terms in the Livebox stats actually mean and what are good or bad values for each?
e.g. Connection mode, Type, Noise margin (dB), Attenuation (dB), Attainable download rate (kbps)
I'll just go through them myself with a couple of extras thrown in.
Ignore connection mode, it's not important what so ever from what I've seen. Only ever set to G.DMT.
Connection type - Fast / Interleaved
All this means is if the interleaved error correction system is being applied to the connection or not. With interleaved on it reduces the number of errors where data has to be resent as it was lost. Side effects are a slight reduction in sync speed and an increase in the time the data takes to pass through the system, gamers usually dislike this effect more than most.
Noise margin - numeric value
When comparing fixed speeds the higher this value the better.
It's a reference to the amount of usable broadband signal the modem/router can "hear" above the background noise.
On rate adaptive services, LLU (non-starter package users) and ADSL Max think of this value being used to "buy" speed. More you have to start with the faster you'll be able to get.
It's generally accepted the lowest level for this is 6db as going lower can cause disconnections. The value can also be targetted on ADSL Max, if there are problems running it at a target of 6 then the system can increase the target by values of 3 to try and keep a connection stable, of course this means you can't get as high a speed when it happens.
Attenuation - numeric value
Figure for the amount of background noise, further you are from the exchange the higher this is. You want this to be low, lower it is should mean greater noise margin and faster speeds. Usually varys upto about 63db at it's highest.
Attainable - numeric value
An estimate produced by the livebox/router/modem software using the current noise margin and attenuation to work out the fastest speed the line should be able to support. Nobody gets the attainable speeds.
Sync - numeric value
The established speed between the device and the exchange. Always less than the attainable and you'll never be able to download at the sync speed.
IP Profile - numeric value, mostly jumps in values of 500kbps.
An ADSL Max only system sets a speed for the line as a way of maintaining stability, it's always less than the sync speed. Low sync rates and/or disconnects cause this to drop, it takes 3 days of stability for the system to move it up. LLU doesn't have this.
Training period - first 10 days using ADSL Max
10 days where the system monitors the line to work out the stable speed it can support. Can play havoc with speeds until it ends. LLU doesn't have this.
darrenwindle wrote:
Type : Fast
Noise margin (dB) : 30.3
Attenuation (dB) : 16.0
Attainable download rate (kbps) : 10656
Downstream Upstream
Rate (kbps) 1152 288
Is there a possibility that Orange have capped my line to 1mb?
As I said before, you are capped at 1 meg.
Quote:
Also I looked at that broadband checker you provided and it gave me these results:
Current Line Sync (connection) speed in Kilo bits per second (Kbps) 1172
Downstream Line Attenuation (dB): 16.0
Noise Margin, sometimes referred to as Signal to Noise Ratio (SNR): 30.3
We estimate that if using a rate adaptive up to 8Mbps service your maximum line speed will be: 8128
Same that I saw when I first put your details in. As I said, you should be able to get a lot faster, though of course the stability of a full 8 meg cannot be guaranteed until it's tried.
Least it's good to see your upstream now sync'd at the full 288.
Can tech support see these readings from their end? In all the times that we've rung tech support, they have never asked for any of these figures.
No, tech can't see these figures, though when a line test is run these sorts of figures would be a part of that which the BT/LLU engineers would get to see. Most people don't realise how much information is produced by the line tests.
Tech don't normally ask for these figures as normally there's nothing they can really do with them, they're also not trained in what these figures are for and mean.
It's a sort of throwback to the fixed 1/2, 1 and 2 meg services where they may have been useful but line tests took care of all of that automatically. As speeds are pushed higher they become more and more important.
It's important to understand what ADSL Max and systems like it are doing, they're pushing your line to it's limit and then trying to keep it as close as possible without going too far. There are differences in how ADSL Max and LLU handle this stuff though.
Imagine a crowd of people near a cliff edge wanting to look over. With ADSL Max you have a policeman there, he watches over things and if the cliff starts to crumble slightly he pushes people back so they're ok. It's a good method but expensive. LLU on the other hand doesn't have a policeman there. People push right to the edge and some fall off, either that or a cheap fence is built to keep them a safe distance. There may be a couple of meters of solid ground the other side but with the fence there you're not going any closer.
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