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Standard User mrmarktigger
(regular) Mon 16-Sep-19 19:46:13
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Superfast 2 Vectoring


[link to this post]
 
To cut a long story short my sync speed dropped from 80/20 to 62/20 suddenly a few weeks ago.

I have tried two other all-in-one modem/routers and it's still the same.

As opposed to the vodafone supplied router which has virtually no useful stats, the TP-Link and Zyxel both indicate that Vectoring is Not enabled.

I'm guessing that's the problem? I assume that's enable by your isp in your profile with them?
Please would anyone know about this?
Standard User Zarjaz
(eat-sleep-adslguide) Mon 16-Sep-19 21:17:32
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Re: Superfast 2 Vectoring


[re: mrmarktigger] [link to this post]
 
Vectoring, if enabled on your line, will be being done at DSLAM level by Openreach.

Vectoring isnít enabled by default on most lines.

Can you provide the other stats please, I suspect your guess at the cause for the drop in speed lies elsewhere.

Standard User lockyatlrg
(fountain of knowledge) Mon 16-Sep-19 23:34:33
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Re: Superfast 2 Vectoring


[re: Zarjaz] [link to this post]
 
When are BT going to deploy vectoring?

Connection Speed 79999 kbps 19999 kbps
Line Attenuation (dB) DS1:9.5 DS2:20.9 DS3:31.1 US0:5.3 US1:17.8 US2:24.6
Noise Margin (dB) DS1:6.5 DS2:6.5 DS3:6.5 US0:13.7 US1:13.8 US2:13.8
Sky Q Hub
My Broadband Ping


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Standard User CarlTSpeak
(learned) Tue 17-Sep-19 00:56:11
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Re: Superfast 2 Vectoring


[re: lockyatlrg] [link to this post]
 
Pretty much already had it in VDSL.

Apart from that G.fast.

Building better networks, not just faster ones.
Standard User mrmarktigger
(regular) Tue 17-Sep-19 06:14:53
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Re: Superfast 2 Vectoring


[re: Zarjaz] [link to this post]
 
Many thanks for the info @Zarjaz

Here are some stats from when I had the TP-Link router connected: -

[email protected]:~$ telnet 192.168.1.1
Trying 192.168.1.1...
Connected to 192.168.1.1.
Escape character is '^]'.

username:admin
password:
-----------------------------------------------------------------------------------------------------------------------------------------------------------
Welcome To Use TP-LINK COMMAND-LINE Interface Model.
-----------------------------------------------------------------------------------------------------------------------------------------------------------
TP-LINK(conf)#adsl

adsl show info

adsl show status
cmd:SUCC
TP-LINK(conf)#adsl show status

INDEX=1
{
enable=1
status=Up
dataPath=
lineNumber=0
lineEncoding=
modulationType=VDSL2
interleaveDepth=0
X_TP_AnnexType=Annex A/L
}
cmd:SUCC
TP-LINK(conf)#
[email protected]:~$ telnet 192.168.1.1
Trying 192.168.1.1...
Connected to 192.168.1.1.
Escape character is '^]'.

username:admin
password:
-----------------------------------------------------------------------------------------------------------------------------------------------------------
Welcome To Use TP-LINK COMMAND-LINE Interface Model.
-----------------------------------------------------------------------------------------------------------------------------------------------------------
TP-LINK(conf)#adsl

adsl show info

adsl show status
cmd:SUCC
TP-LINK(conf)#adsl show info

INDEX=1
{
enable=1
X_TP_DisableAELEM=0
status=Up
linkEncapsulationRequested=
linkEncapsulationUsed=G.993.2_Annex_K_PTM
modulationType=VDSL2
lineEncoding=
allowedProfiles=8a,8b,8c,8d,12a,12b,17a,30a
currentProfile=17a
X_TP_VDSLProfiles_8a=1
X_TP_VDSLProfiles_8b=1
X_TP_VDSLProfiles_8c=1
X_TP_VDSLProfiles_8d=1
X_TP_VDSLProfiles_12a=1
X_TP_VDSLProfiles_12b=1
X_TP_VDSLProfiles_17a=1
X_TP_VDSLProfiles_30a=0
dataPath=
interleaveDepth=0
lineNumber=0
upstreamCurrRate=20000
downstreamCurrRate=62329
upstreamMaxRate=23564
downstreamMaxRate=75242
upstreamNoiseMargin=68
downstreamNoiseMargin=63
upstreamAttenuation=179
downstreamAttenuation=95
upstreamPower=35
downstreamPower=36
usNegBandPlanDiscPresentation=3
dsNegBandPlanDiscPresentation=3
SATNus=1,177,278,1023,1023
SATNds=123,219,354,1023,1023
LATNus=2,179,279,1023,1023
LATNds=95,221,354,1023,1023
SNRMarginus=68,71,67,-512,-512
SNRMarginds=62,63,62,-512,-512
transmitPowerUs=-67,-299,31,-1281,-1281
transmitPowerDs=101,74,74,-1281,-1281
ATURVendor=
ATURCountry=
ATUCVendor=
ATUCCountry=
totalStart=92279
showtimeStart=92253
quarterHourStart=0
X_TP_Bitswap=On
X_TP_SRA=Off
X_TP_AdslModulationCfg=Multimode
X_TP_AnnexType=Annex A/L
X_TP_SupportAdslMode=VDSL2:A;T1.413:A;G.lite:A;G.dmt:A;ADSL2:A,A/L;ADSL2+:A,M,A/L/M;Auto Sync-up:A,A/L,M,A/L/M
}
cmd:SUCC
TP-LINK(conf)#
Standard User mrmarktigger
(regular) Tue 17-Sep-19 06:24:26
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Re: Superfast 2 Vectoring


[re: Zarjaz] [link to this post]
 
P.S.

The following was from when the Zyxel router was connected: -

DSL Modulation Type:VDSL2

Annex Type:Annex A/L

Upstream Downstream
Current Rate (Kbps) 20000 62329
Max Rate (Kbps) 23512 75161
SNR Margin (dB) 6.8 6.3
Line Attenuation (dB) 17.9 9.5
Errors (Pkts) 0 0
Standard User mrmarktigger
(regular) Tue 17-Sep-19 20:52:37
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Re: Superfast 2 Vectoring


[re: Zarjaz] [link to this post]
 
Is Vectoring automatic with DLM for example with DSLAM level by Openreach?

Or can the isp do that?

I know the isp can reset the DLM without an Openreach visit. And maybe more.
Standard User CarlTSpeak
(learned) Tue 17-Sep-19 22:39:48
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Re: Superfast 2 Vectoring


[re: mrmarktigger] [link to this post]
 
In reply to a post by mrmarktigger:
Is Vectoring automatic with DLM for example with DSLAM level by Openreach?

Or can the isp do that?

I know the isp can reset the DLM without an Openreach visit. And maybe more.


Vectoring is nothing to do with DLM.

Building better networks, not just faster ones.
Standard User Realalemadrid
(member) Tue 17-Sep-19 22:44:50
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Re: Superfast 2 Vectoring


[re: mrmarktigger] [link to this post]
 
Don't really understand what you are asking but vectoring is extremely rare on UK FTTC lines. A few BDUK provisions in rural areas where there were long D-side lines had vectoring enabled to enable speed requirements to be achieved (only 25Mbps I think). Otherwise it has not been activated by Openreach and ISP's can not do anything to enable it.
Standard User mrmarktigger
(regular) Wed 18-Sep-19 18:11:11
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Re: Superfast 2 Vectoring


[re: Realalemadrid] [link to this post]
 
In reply to a post by Realalemadrid:
Don't really understand what you are asking but vectoring is extremely rare on UK FTTC lines. A few BDUK provisions in rural areas where there were long D-side lines had vectoring enabled to enable speed requirements to be achieved (only 25Mbps I think). Otherwise it has not been activated by Openreach and ISP's can not do anything to enable it.


Many thanks for the info. I was reading this among other things: - https://www.increasebroadbandspeed.co.uk/2013/how-fa...

So if I assume vectoring isn't available on my street cabinet only approx 200m away, could crosstalk from one more subscriber make it fall from 80/20 to 62/20 overnight ?
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