Isn't that what I said?

Thanks. Amazing - I must have picked that up from somewhere years ago and just went with it!

Thank you so much for explaining that. So many numbers involved, and for someone like me, takes some unravelling initially.
Sorry re the omission of sync - did another ..sync appears to match what's shown in the router interface:

Download Speed
4572 Kbps
0 Kbps 7150 Kbps
Max Achievable Speed

Download speed achieved during the test was - 4572 Kbps
For your connection, the acceptable range of speeds is 2000-7150 Kbps.
Additional Information:
Your DSL Connection Rate :5632 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 4969 Kbps

2. Upstream Test: -provides background information.

Upload Speed
363 Kbps
0 Kbps 448 Kbps
Max Achievable Speed

>Upload speed achieved during the test was - 363 Kbps
Additional Information:
Upstream Rate IP profile on your line is - 448 Kbps

So am I to understand that as long as this new router holds the connecteion fairly steady for some days, the profile will change again? My sync down before Monday was 4800-5184 (on good days).

Regarding the TR101, I tried Google too but the info was way beyond my understanding

Also, is it hit and miss as to whether CN21 improves or worsens things (or stays the same).
I'm trying to get the line stable before I think of upgrading to FTTC. Also getting a new master socket fitted on 29th.

Things become clearer here.

At the time of the November info you gave earlier, the IP Profile was being determined accounting to the old system As in the adsl3500 being an IP Profile of 3500kbps and so on.

The 12 December one is showing a sync speed of sync of 5184kbps, with a line rate of 4573kbps = 88.2% of 5184.

Your performance test here shows sync 5632 and an IP Profile 88.2% of that = 4969kbps.

Those two sets of figures indicate the new system, that you are on ADSL2+ (CN21) and that Zen are picking up the IP Profile changes.

The sync of 5632kbps, if this becomes consistent, suggests that the move to ADSL2+ has been quite beneficial. At this sort of speed an increase on changing from ADSL to ADSL2+ is not guaranteed.

With regard to FTTC, that is a whole new ball game. Your highest sync at the moment is mainly determined by your distance from the exchange, barring the effect of faults, and the noise hitting the line between the exchange and you. Plus of course any wiring issues at home, which you are addressing.

On FTTC, the whole of the distance from the exchange to the street cabinet serving you is eliminated. The factors that I describe above that affect your speed will only apply to the link from the cabinet(s) to you and your wiring. If you haven't read my FTTC explananation, have a look .

Yup, this is pretty nice.

Was on 11000000 BT (stepped) BRAS, with the 95% of BRAS (VoIP) limiter set on A&A side, meaning my actual line through-put speed was 10450000.

Line rate is now currently 12692000 on the BT (non-stepped) BRAS, meaning my line through-put has jumped (with the 95% A&A limiter) to 12057400. 1607400 (1.6Mb) faster.

Back of the net.

Yes, the first one on 17th Nov was the day I migrated to Zen.
The subsequent ones were lower as the connection wasn't stable.
The one on 12th was at around 5.30am (but didn't show up there until 14th)
Late afternoon on 12th, my new router was connected (Zen had wondered if my old one had a fault).
It synced at 5632 right away, and apart from what appears to be one disconnect on the second day, has so far remained stable and synced the same. Noise has varied between 6.5 to 5Db. Speed tests show approx 4.8mb.
I did get slow downs and slow page/email loads from early yesterday evening, but it's ok today, and unlike the Netgear after a slow-down, didn't disconnect.

The TR101 info didn't show up until 14th and initially I thought it was to do with the new router/better connection.

While setting up the router, I asked the tech chap about CN21 - he checked and said no, I'm not on it and if I'd like to be, to click on the 'upgrade' link in the portal and request it. I haven't done that yet though in case it complicated things. Wonder if he was mistaken.

I have just read your FTTC info - thank you. I'm 1.6mts from exchange (NEILB) but not sure about street cab position. I must look for it

My apologies - I'd thought the TR101 was to do with the subject of this thread ..obviously not. I do appreciate the explanations and help though.

In reply to a post by RobertoS:

Isn't that what I said?

Thanks. Amazing - I must have picked that up from somewhere years ago and just went with it!

How true.

Well a couple of years ago anyway

Mac

In reply to a post by Anonymous:

In reply to a post by RobertoS:

Amazing - I must have picked that up from somewhere years ago and just went with it!

How true.

Well a couple of years ago anyway

Mac

Heh!!!!!

I got away with it that time though. 2.5 years ago, so it must have been before that.

Like many acronym expansions, just as useful in fact, even though wrong. It is indeed central to BT Rate Adaptive DSL.

From the BT Performance test, you are now on WBC (21CN is an overall term for a complete revamp of the BT phone and broadband network. WBC and WBMC are the BT Wholesale broadband products running on that network. See my website again . You should say WBC or ADSL2+).

On 12 December the data you posted suggests you were on 20CN. That would be from a simple migration of your service. I would expect you would still be on 20CN immediately after the migration, so he would be correct.

Most ISPs automatically transfer people after a time once WBC is available, so that seems to have happened. Some ISPs offer an earlier transfer on request. You were told how to make that request but didn't, and since then it has taken place anyway.

I've been on 21CN a while now (EALOW exchange), and over the last month or so the line has gotten a lot more stable, part of that may be down to my new Fritz!box though.

Here's where I'm at:

Receive Direction Send Direction
Max. DSLAM throughput kbit/s 16352 1280
Min. DSLAM throughput kbit/s 160 32
Attainable throughput kbit/s 3484 756
Current throughput kbit/s 3480 755

Latency 1 ms 1 ms
Bitswap on on
Seamless Rate Adaptation off off
Impulse Noise Protection (INP) 0.0 0.0
Energy-saving mode L2 NA - -

Signal-to-noise ratio dB 4 6
Line attenuation dB 51 30
Power Reduction dB 0 0
Carrier record A43 A43


Anyone have any idea if SRA will ever be enabled?

Unfortunately it looks like I'm still stuck with 2.6mbit downloads rather than the new profile at the moment:

Upstream Downstream Sync Rate BRAS Profile Interleave Sync Date Date
754 3069 3480 TR101 Auto 15-Dec-2011 09:03 15-Dec-2011 09:03
754 2500 2848 adsl2500-b Auto 07-Dec-2011 05:12 07-Dec-2011 05:12
786 2500 2848 adsl2500-b Auto 21-Nov-2011 18:48 21-Nov-2011 18:48
835 2500 2848 adsl2500-b Auto 19-Nov-2011 04:58 19-Nov-2011 04:58
815 1500 1728 adsl1500-b Auto 26-Oct-2011 19:51 26-Oct-2011 19:51
850 1500 1728 adsl1500-b Auto 25-Oct-2011 22:47 25-Oct-2011 22:47
827 1750 2016 adsl1750-b Auto 25-Oct-2011 21:27 25-Oct-2011 21:27
839 2000 2272 adsl2000-b Auto 15-Oct-2011 21:58 15-Oct-2011 21:58
920 2500 2848 adsl2500-b Auto 02-Oct-2011 06:10 02-Oct-2011 06:10
499 2000 2272 adsl2000-b Auto 02-Sep-2011 08:42 02-Sep-2011 08:42

Edited by Stoo (Sat 17-Dec-11 00:24:18)

In reply to a post by Stoo:

Unfortunately it looks like I'm still stuck with 2.6mbit downloads

Where? You are getting 3.4 Meg!