BT does it AGAIN

They want me to have at most a 2500 BRAS despite the fact my line is
rock solid at 3600-4000Mbps sync, they keep upping the noise margin till
it drops below 3500, at which point I lose the 3000 BRAS.

Who can one complain to?

In article <ibv6vl$unj$(E-Mail Removed)>, The Natural Philosopher
<(E-Mail Removed)> writes

>They want me to have at most a 2500 BRAS despite the fact my line is
>rock solid at 3600-4000Mbps sync, they keep upping the noise margin till
>it drops below 3500, at which point I lose the 3000 BRAS.

Underhand way of reducing the exchange backhaul load, maybe? Are you
hammering your connection?

--
(\__/)
(='.'=)
(")_(")

Mike Tomlinson wrote:
> In article <ibv6vl$unj$(E-Mail Removed)>, The Natural Philosopher
> <(E-Mail Removed)> writes
>
>> They want me to have at most a 2500 BRAS despite the fact my line is
>> rock solid at 3600-4000Mbps sync, they keep upping the noise margin till
>> it drops below 3500, at which point I lose the 3000 BRAS.
>
> Underhand way of reducing the exchange backhaul load, maybe? Are you
> hammering your connection?
>
Not really, no.

I personally think BT's ATM circuits are all on the limit.

"Mark" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On Wed, 17 Nov 2010 00:17:57 +0000, The Natural Philosopher
> <(E-Mail Removed)> wrote:
>
>>They want me to have at most a 2500 BRAS despite the fact my line is
>>rock solid at 3600-4000Mbps sync, they keep upping the noise margin till
>>it drops below 3500, at which point I lose the 3000 BRAS.
>
> Interesting. I have a similar issue (but at lower speeds).
>
>>Who can one complain to?
>
> No-one unless your sync speed is below the FTR.
>
> You can some routers that will let you "adjust" the target margin but
> I didn't get a great deal of success with this.

So far as I've found these adjusments only allow an increase in target
margin, with the intention of improving reliability, and a consequent drop
in speed.

--
Graham J

"Mark" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On Wed, 17 Nov 2010 00:17:57 +0000, The Natural Philosopher
> <(E-Mail Removed)> wrote:
>
>>They want me to have at most a 2500 BRAS despite the fact my line is
>>rock solid at 3600-4000Mbps sync, they keep upping the noise margin till
>>it drops below 3500, at which point I lose the 3000 BRAS.
>
> Interesting. I have a similar issue (but at lower speeds).
>
>>Who can one complain to?
>
> No-one unless your sync speed is below the FTR.
>
> You can some routers that will let you "adjust" the target margin but
> I didn't get a great deal of success with this.

Netgear DGND3300 allows this:

System Up Time 173:12:29
Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
WAN Static IP 3049954 4228216 0 1141 896 172:17:29
LAN 10M/100M 909242 379651 0 358 107 173:12:25
WLAN 11M/54M/270M 2684852 1806197 0 4804 729 173:12:10
ADSL Link Downstream Upstream
Connection Speed 22445 kbps 1390 kbps
Line Attenuation 26.0 db 12.6 db
Noise Margin 0.9 db 3.6 db

I'm with BE on a 6db profile but fix my target SNR at 1db with DMT. Never
get any disconnects, my line is all underground or in metal conduit so
hardly any SNR change

Paul

Plusnet Support Team wrote:
> On 17/11/2010 00:17, The Natural Philosopher wrote:
>> They want me to have at most a 2500 BRAS despite the fact my line is
>> rock solid at 3600-4000Mbps sync, they keep upping the noise margin till
>> it drops below 3500, at which point I lose the 3000 BRAS.
>
> Anything below 3424kbps sync rate and your profile will drop to
> 2500kbps. You say your line is 'rock solid' and then report that there's
> variance in the sync speed? Surely the two are mutually exclusive?
>
>> Who can one complain to?
>
> Based on your comments, your line is dropping out enough times for
> Wholesale's Dynamic Line Management systems to increase your target
> SNR/lower your IP Profile.
>
No, it isn't. One week of no resynchs at 3.8Mand then BANG. 15dB noise
margin from BT. Like being slapped with a wet cod. down to 3.2M you go boy.

Brian Gregory [UK] wrote:
> "The Natural Philosopher" <(E-Mail Removed)> wrote in message
> news:ibv6vl$unj$(E-Mail Removed)...
>> They want me to have at most a 2500 BRAS despite the fact my line is rock
>> solid at 3600-4000Mbps sync, they keep upping the noise margin till it
>> drops below 3500, at which point I lose the 3000 BRAS.
>>
>> Who can one complain to?
>>
>
> All you sure it's rock solid all night?
>
yup

Meanwhile, at the uk.telecom.broadband Job Justification Hearings, DrTeeth
chose the tried and tested strategy of:

> The only one would be getting one's head around a better service and
> wondering why everybody who can does not go LLU.

Not every exchange has LLU.

--
<http://ale.cx/> (AIM:troffasky) ((E-Mail Removed))
23:49:13 up 19 days, 3:19, 7 users, load average: 2.21, 2.15, 1.16
"I am utterly appalled at how I have been treated like a criminal"
-- Andrew Crossley, ACS:Law, 13 August 2010

Brian Gregory [UK] wrote:
> "The Natural Philosopher" <(E-Mail Removed)> wrote in message
> news:ic523k$hkp$(E-Mail Removed)...
>> Brian Gregory [UK] wrote:
>>> "The Natural Philosopher" <(E-Mail Removed)> wrote in message
>>> news:ibv6vl$unj$(E-Mail Removed)...
>>>> They want me to have at most a 2500 BRAS despite the fact my line is
>>>> rock solid at 3600-4000Mbps sync, they keep upping the noise margin till
>>>> it drops below 3500, at which point I lose the 3000 BRAS.
>>>>
>>>> Who can one complain to?
>>>>
>>> All you sure it's rock solid all night?
>>>
>> yup
>
> An extreme solution would be to switch to an LLUed ISP that doesn't use BT
> equipment and say bye bye to all the BT stupidity where you an get stuck
> being throttled to speeds well below your connect speed.
> However you might find other new problems.
>
Like the total lack of any LLU at the exchange?

;-)

On Sat, 20 Nov 2010 17:50:32 +0000, DrTeeth wrote:

> On Fri, 19 Nov 2010 23:49:36 +0000, just as I was about to take a herb,
> alexd <(E-Mail Removed)> disturbed my reverie and wrote:
>
>>Not every exchange has LLU.
>
> That is why I wrote " wondering why everybody ***who can*** does not go
> LLU".

Limits the ISP options though.

--
Use the BIG mirror service in the UK:
http://www.mirrorservice.org

*lightning protection* - a w_tom conductor