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Author Topic: My Fault- Update  (Read 19725 times)

burakkucat

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Re: My Fault- Update
« Reply #45 on: April 25, 2017, 04:50:00 PM »

It now seems I am on a 5db target margin as I had a resync at 10am and my reading is now 5db with 68 sync.

 :hmm:  Hmm, I think I have already read your latest update . . . I wonder where that was?  ;)

How soon after the resynchronisation event was the SNRM observed? Seconds? Minutes? or ?

As you appreciate, it is necessary to make the observation promptly after the synchronised state has been achieved.
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banger

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Re: My Fault- Update
« Reply #46 on: April 25, 2017, 05:50:12 PM »

I wonder where you read that. :D

MWDS seems to indicate just after the resync target was 5db and has remained around that all day.
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Tim
talktalkbusiness.net & freenetname
Asus RT-AC68U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

burakkucat

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Re: My Fault- Update
« Reply #47 on: April 25, 2017, 06:09:04 PM »

MWDS seems to indicate just after the resync target was 5db and has remained around that all day.

So you are able to confirm that a SNRM datum point was harvested not later than a minute after the resynchronisation event had occurred. in view of that fact, I am happy to agree that your circuit's target SNRM does, indeed, appear to be 5 dB.

A subsidiary, rhetorical, question would be: "How low will it go?". We must watch and wait.  :)
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banger

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Re: My Fault- Update
« Reply #48 on: April 27, 2017, 08:25:13 PM »

Connection speed (kbps):   73353      19070
SNR margin (dB):           3.7      5.9
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Tim
talktalkbusiness.net & freenetname
Asus RT-AC68U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

NewtronStar

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Re: My Fault- Update
« Reply #49 on: April 27, 2017, 08:50:45 PM »

That is a big increase of sync with a SNRM target margin of 3dB and with attenuation of 19dB though the errored seconds have gone up quite a bit but still in the amber zone for all DLM profiles
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banger

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Re: My Fault- Update
« Reply #50 on: April 27, 2017, 08:53:30 PM »

It is despite engineer saying I would get 55 tops and I think its supposed to be 4dB wonder if in a couple of days it will actually go to 3dB or stick at 4dB.
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Tim
talktalkbusiness.net & freenetname
Asus RT-AC68U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

NewtronStar

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Re: My Fault- Update
« Reply #51 on: April 27, 2017, 09:13:12 PM »

You could be right I can only see 2 steps of SNRM decrements from 5.7dB (6.0db) - 5dB and then 3.9dB so the next one could be 2.9dB your DS SNRM jumps about thought out the day which is causing the graph & me confusion.
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burakkucat

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Re: My Fault- Update
« Reply #52 on: April 27, 2017, 09:49:15 PM »

My suspicion is that the target SNRM will not be reduced any further. (Though I'll be happy to be proven wrong!  ;)  )
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banger

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Re: My Fault- Update
« Reply #53 on: April 27, 2017, 10:03:56 PM »

My suspicion is that the target SNRM will not be reduced any further. (Though I'll be happy to be proven wrong!  ;)  )

I tend to agree with ES creeping in.
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Tim
talktalkbusiness.net & freenetname
Asus RT-AC68U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

NewtronStar

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Re: My Fault- Update
« Reply #54 on: April 27, 2017, 10:58:29 PM »

Do you think future crosstalk will come into play and take 10Mbs of sync away  :-\
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banger

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Re: My Fault- Update
« Reply #55 on: April 27, 2017, 11:02:52 PM »

I am hoping not. The cabinet serves my estate which I am hoping will have relatively few users and this is reflected in it being funded by Digital Durham.

Only time will tell. :|
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Tim
talktalkbusiness.net & freenetname
Asus RT-AC68U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

lee111s

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Re: My Fault- Update
« Reply #56 on: April 28, 2017, 09:24:58 AM »

I am hoping not. The cabinet serves my estate which I am hoping will have relatively few users and this is reflected in it being funded by Digital Durham.

Only time will tell. :|

Why should how it was funded make any difference on the number of subscribers?

Usually, BDUK cabs are for those with poor speeds, thus MORE users are likely to upgrade.
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WWWombat

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Re: My Fault- Update
« Reply #57 on: April 28, 2017, 01:01:01 PM »

My suspicion is that the target SNRM will not be reduced any further. (Though I'll be happy to be proven wrong!  ;)  )
I tend to agree with ES creeping in.

The other error-related graphs show the impact building up:
- B0 FEC
- G-Retransmit TX
- B0 CRC Errors

This last change looks like a step too far.
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banger

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Re: My Fault- Update
« Reply #58 on: April 28, 2017, 03:25:54 PM »

Now showing red on standard on MWDS which I believe I am on and 1000 ES today so far but no retrains so far this little WD9970 hangs on to sync well.

As WWWombat says maybe a step too far.
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Tim
talktalkbusiness.net & freenetname
Asus RT-AC68U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

burakkucat

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Re: My Fault- Update
« Reply #59 on: April 28, 2017, 05:12:29 PM »

Now showing red on standard on MWDS which I believe I am on and 1000 ES today so far but no retrains so far this little WD9970 hangs on to sync well.

I would expect the DLM to "cough up a fur-ball" quite soon and then raise the target SNRM by one dB.
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