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[TheBoy]

Ok, had a look through the modem, not actually found anything that says sys speed.  But found this lot.   Or should I keep looking.  (highlighted what I think my be relevmt)


Modem Status
      
Connection Status               Connected
Us Rate (Kbps)               448
Ds Rate (Kbps)               7424
US Margin               23
DS Margin               3
Trained Modulation               GDMT
LOS Errors               0
DS Line Attenuation               39
US Line Attenuation               23
Peak Cell Rate               1056 cells per sec
CRC Rx Fast               0
CRC Tx Fast               0
CRC Rx Interleaved               4303
CRC Tx Interleaved               64
Path Mode               Interleaved
DSL Statistics
      
Near End F4 Loop Back Count               0
Near End F5 Loop Back Count               0

Forget what you've been told about sync speeds thus far Skruntie, that's not even the beginning of the battle.

If your "DS Margin" actually means SNR Ratio, then that is a crap figure my friend (the higher the number, the better).
You really need to get almost double that to even get close to what your ISP claims you will get.

Are you on fixed rate DSL, or Rate Adaptive?

Think you've misunderstood this thread - it started about filters, thus its a fair assumption to assume OP was trying to achieve a better speed from line, not from the package.  Therefore, sync speed is key for this discussion.  This does not take in other factors, and is just concentrating on DSLAM onwards.

SNR is directly related to Sync speed.  Low SNR will drop sync speed.  High SNR, and sync will creep up

[TheBoy]

This is where I really dont have a clue.

When I had the line installed the "Installation" guy (  got it right this time Mark  ) had to go backwards and fords to a road box and the exchange.

He had to change the pairs over on something (Jamie had mentioned this in the thread I posted at the time) but he did say I was suffering a lot of line noise at the time.

I have tackled BT in the mean time but all they do is quote the statement of there is a £120 charge plus vat if we dont find a fault, and of course they are in a possition to tell me whatever they want asI dont have any equipment , trst gear or knowledge to say otherwise, and as the phone and the fact I am online every day will get the reply of "So whats the problem"


Is there any way I can perform tests and find out information myself.

Are you on fixed rate DSL, or Rate Adaptive?

  Am clueless on that.  :-/

The sync looks good, the SNR looks very bad, so hopefully sync will drop to a speed where the SNR becomes acceptable.  All routers seem to report this slightly different, but you're looking in region of 7-10db

You are on a MaxDSL product, thus RA.

[TheBoy]

but then its cisco junk, what do you expect

Just as I start to respect what you say, you f**k it up with another load of crap  :-/

Cisco are on the shitlist this week, thats all, so I have a monk on with them.

The developers at Cisco have been smoking something they shouldn't during works time lately, and a load of the stuff simply doesn't do what its supposed to. Bloody things.  This is made worse by their support structure - lets say a cat is not quite doing what you expect, Cisco won't even look at it until you rip all the config off and put their base config on. What bloody use is that  .  And don't start me on terminal servers, else I'll rant for hours.

But I do mostly like Cisco kit, though we are seeing a fair few chassis failures on the bigger routers (12000s). The default of Fastport being off on cats always catches me out - really sods up Windows stuff, and caught me out a few days ago when I chucked a new Proliant in at my brother's place.

I am not a particular fan of their consumer stuff - dumbed down Linksys or Cisco branded (such as 800 series routers etc). Purposely, and senselessly knobbled.

[bluehawk]

at the end of the day it may not be your end that is running slow IE

I can connect to a server in san jose califonia with 18.5meg down and .71 meg up
 but whtehorse sever in canada i get 2.6 meg down and 0.72 meg up

[jereboam]

Off topic:

Have any of you ever had a problem with the IP profile being reset to a very low figure?  My line usually syncs at about 4.5Mb, and I get an IP profile of about 4Mb.  On occasion, without any line disruption detectable from my end, the IP profile drops to 135kb - just a bit better than dialup. 

I've been told about the BT/ISP service agreement - if line is unstable for x minutes (45?, 75?, can't remember), IP profile is set low and doesn't revert to a useful figure until 72 hours of "stable conditions" have been detected by the BT exchange.   

The Won'tHelpDesk at my ISP just will not do anything about it.  I can be more or less "off the air" for 5 days or more when this happens.

[TheBoy]

Off topic:

Have any of you ever had a problem with the IP profile being reset to a very low figure?  My line usually syncs at about 4.5Mb, and I get an IP profile of about 4Mb.  On occasion, without any line disruption detectable from my end, the IP profile drops to 135kb - just a bit better than dialup. 

I've been told about the BT/ISP service agreement - if line is unstable for x minutes (45?, 75?, can't remember), IP profile is set low and doesn't revert to a useful figure until 72 hours of "stable conditions" have been detected by the BT exchange.   

The Won'tHelpDesk at my ISP just will not do anything about it.  I can be more or less "off the air" for 5 days or more when this happens.

if your isp is refusing to help, and not explain why (ie, "its bt's fault"), change isp

[jereboam]

Due to stupidity and ignorance in earlier days, I have an e-mail address linked to the ISP.  Too many business contacts have the address for me to abandon it before I retire. 

Anyway, my ISP doesn't rate too badly compared with anyone else offering a service round here. 

The problem is their so-called "help desk".  Let  us just say that is not locally situated.  The operatives just will not deviate from their script even when they are able to see from the notes that this is

• the same complaint as last time,
• that I am not a first-time caller and
• that I am perfectly prepared to contact the head office and report them for being unhelpful

They have on occasion more or less reduced me to tears.

But does anyone else have this problem?

[TheBoy]

Does the sync drop down with the throughput?

[KillerWatt]

But does anyone else have this problem?

Nope, but then I've always run my own mail server rather than rely on a 3rd party to deliver what I want.

[jereboam]

But does anyone else have this problem?

Nope, but then I've always run my own mail server rather than rely on a 3rd party to deliver what I want.

Not that problem!

The IP profile problem!  Concentrate!

[KillerWatt]

But does anyone else have this problem?

Nope, but then I've always run my own mail server rather than rely on a 3rd party to deliver what I want.

Not that problem!

The IP profile problem!  Concentrate!

The post from yourself that I quoted from made no mention of an IP problem, maybe it's you that needs to wake up!

[jereboam]

Does the sync drop down with the throughput?

Not that I've noticed.  We're quite some way from the exchange - it's either 5 miles or 5km - can't remember, and can't remember how to find out.  As I said, it usually syncs at an acceptable rate for the distance, and the throughput seems to be consistent with the sync rate.  But it's a bit difficult to tell, as I'm not using any particularly fast servers on a regular basis. 

I think I'm getting a better sync rate than my neighbours, but I can't be sure.  Daytime throughput can be very low, evenings better and nights generally good.  This is surprising, as there's not a lot of commercial or industrial premises in the neighbourhood - commuterland.  But then I dont know how BT assigns lines to exchange hardware - there could be some heavy users nearby that I don't know about.    

But I really don't know where these alleged line interrupts are coming from.  I just don't see them.

[jereboam]

But does anyone else have this problem?

Nope, but then I've always run my own mail server rather than rely on a 3rd party to deliver what I want.

Not that problem!

The IP profile problem!  Concentrate!

The post from yourself that I quoted from made no mention of an IP problem, maybe it's you that needs to wake up!

Please accept my apologies for a hasty reaction.  Please see the post two items before the one you quoted from. 

[KillerWatt]

Please accept my apologies for a hasty reaction.  Please see the post two items before the one you quoted from. 

Apology accepted, and I thank you for having the decency to apologise.

[TheBoy]

Does the sync drop down with the throughput?

Not that I've noticed.  We're quite some way from the exchange - it's either 5 miles or 5km - can't remember, and can't remember how to find out.  As I said, it usually syncs at an acceptable rate for the distance, and the throughput seems to be consistent with the sync rate.  But it's a bit difficult to tell, as I'm not using any particularly fast servers on a regular basis. 

I think I'm getting a better sync rate than my neighbours, but I can't be sure.  Daytime throughput can be very low, evenings better and nights generally good.  This is surprising, as there's not a lot of commercial or industrial premises in the neighbourhood - commuterland.  But then I dont know how BT assigns lines to exchange hardware - there could be some heavy users nearby that I don't know about.    

But I really don't know where these alleged line interrupts are coming from.  I just don't see them.

Is the ISP a business orinented ISP? Could be they either have insufficent capacity, or traffic shape to hell during busy times (which may be daytime).

Also, if its an ISP that uses datastream or in-span handover, it could be ISP has poor capacity to exchange