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Standard User WelshWArrior
(fountain of knowledge) Mon 23-Jan-17 21:53:58
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Looks like I'm on the snr trial but exchange not on list


[link to this post]
 
Evening all. The kids accidentally turned off the Billion 8800NL earlier whilst playing. I just plugged it back in and the stats are interesting in that the SNR's are below 6 for the first time that I've noticed:

Mode VDSL2
Traffic Type PTM
Status Up
Link Power State L0
Downstream Upstream
Line Coding (Trellis) On On
SNR Margin (dB) 4.8 5.5
Attenuation (dB) 19.0 0.0
Output Power (dBm) 12.6 7.5
Attainable Rate (Kbps) 69181 20456
Rate (Kbps) 68860 19999
B (# of bytes in Mux Data Frame) 243 244
M (# of Mux Data Frames in an RS codeword) 1 1
T (# of Mux Data Frames in an OH sub-frame) 0 0
R (# of redundancy bytes in the RS codeword) 10 10
S (# of data symbols over which the RS code word spans) 0.1128 0.3885
L (# of bits transmitted in each data symbol) 18009 5251
D (interleaver depth) 8 4
I (interleaver block size in bytes) 254 255
N (RS codeword size) 254 255
Delay (msec) 0 0
INP (DMT symbol) 47.00 45.00
OH Frames 0 0
OH Frame Errors 0 0
RS Words 9640408 2812115
RS Correctable Errors 10000 559
RS Uncorrectable Errors 0 0
HEC Errors 0 0
OCD Errors 0 0
LCD Errors 0 0
Total Cells 36283197 0
Data Cells 234348 0
Bit Errors 0 0
Total ES 0 0
Total SES 0 0
Total UAS 33 33
xDSL BER Test Reset

I seem to have gained around 9Mbps down and about 3Mbps up!

It'a weird as my exchange (Tenby SWTB) is not on the trial list I've seen.

-------------------------------------------
BT Infinity 2 Unlimited
http://www.thinkbroadband.com/speedtest/button/14676...
Standard User RobertoS
(elder) Tue 24-Jan-17 00:35:39
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Re: Looks like I'm on the snr trial but exchange not on list *DELETED*


[re: WelshWArrior] [link to this post]
 
Post deleted by RobertoS
Standard User WelshWArrior
(fountain of knowledge) Tue 24-Jan-17 08:38:05
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Re: Looks like I'm on the snr trial but exchange not on list


[re: WelshWArrior] [link to this post]
 
Well the snr values have stayed so my exchange must be on the trial. I have noticed that my attainable is lower than my actual:

Attainable Rate (Kbps) 65295 20456
Rate (Kbps) 68860 19999

However, speedtests are coming back at around 66Mbps so guess it's an issue with the modem? Also, looking on MDWS, people with the newer snrs seem to be seeing the same with sync higher than attainable.

-------------------------------------------
BT Infinity 2 Unlimited
http://www.thinkbroadband.com/speedtest/button/14676...


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Administrator MrSaffron
(staff) Tue 24-Jan-17 08:41:15
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Re: Looks like I'm on the snr trial but exchange not on list


[re: WelshWArrior] [link to this post]
 
That's because attainable is doing its maths assuming 6dB is the lowest margin, so if you go below that things will be a bit odd.

Am tracking cabinets on the 'list' and the speeds otherwise so if the trials get enough people on lower margins we may see the effect. Other changes such as upload tweaks by PlusNet, the up to 52 Mbps Infinity 1 were all visible so no reason once this trial goes to larger volumes we should not see it.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User WelshWArrior
(fountain of knowledge) Tue 24-Jan-17 08:46:54
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Re: Looks like I'm on the snr trial but exchange not on list


[re: MrSaffron] [link to this post]
 
Maybe they've opened the trial wider as I didn't see any Welsh cabs in the last list that was on here.

Looking on MDWS again, almost everyone that has an snr lower than 6 (bar 1 or 2 people) has a sync rate higher than their attainable. Strange.

-------------------------------------------
BT Infinity 2 Unlimited
http://www.thinkbroadband.com/speedtest/button/14676...
Standard User lee111s
(experienced) Tue 24-Jan-17 09:26:39
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Re: Looks like I'm on the snr trial but exchange not on list


[re: WelshWArrior] [link to this post]
 
It's not strange.

The attainable is calculated based on an snr of 6db.
Standard User WelshWArrior
(fountain of knowledge) Tue 24-Jan-17 09:37:15
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Re: Looks like I'm on the snr trial but exchange not on list


[re: lee111s] [link to this post]
 
Even if the snr is actually 4.8?

-------------------------------------------
BT Infinity 2 Unlimited
http://www.thinkbroadband.com/speedtest/button/14676...
Standard User WilliamGrimsley
(regular) Tue 24-Jan-17 09:59:41
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Re: Looks like I'm on the snr trial but exchange not on list


[re: WelshWArrior] [link to this post]
 
Yes, you're not on the trial unfortunately.
Standard User lee111s
(experienced) Tue 24-Jan-17 10:44:05
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Re: Looks like I'm on the snr trial but exchange not on list


[re: WelshWArrior] [link to this post]
 
Yes because the attainable is just a basic calculation.
Standard User WilliamGrimsley
(regular) Tue 24-Jan-17 11:03:36
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Re: Looks like I'm on the snr trial but exchange not on list


[re: lee111s] [link to this post]
 
Check out my thread.
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