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Author Topic: 3dB Target SNRm Live?  (Read 76940 times)

lee111s

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Re: 3dB Target SNRm Live?
« Reply #270 on: August 14, 2017, 01:34:11 PM »

Syncing below the max rate for your chosen product?
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AngelRex

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Re: 3dB Target SNRm Live?
« Reply #271 on: August 17, 2017, 05:23:00 PM »

Pretty much the whole south east had a power cut today.  Upon resync my upstream SNR is now 3db and max attain 41.5 odd

Details on MDWS if anyone wanted to take a look.

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Ixel

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Re: 3dB Target SNRm Live?
« Reply #272 on: August 17, 2017, 06:39:21 PM »

Pretty much the whole south east had a power cut today.  Upon resync my upstream SNR is now 3db and max attain 41.5 odd

Details on MDWS if anyone wanted to take a look.

Wow, south east? I thought it was just localised to my area, shocking!
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displaced

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Re: 3dB Target SNRm Live?
« Reply #273 on: August 23, 2017, 03:44:40 PM »

Looks like my line’s just started its target SNRM adjustments (MDWS: displaced)

Sync up from 48-ish to 51, target now 5.0dB

Seems all I had to do was leave the country (in Toronto at the moment).  Yaay!
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YouFibre 1Gbit, OPNsense on Intel N100.  Ubiquiti UAPs.

NewtronStar

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Re: 3dB Target SNRm Live?
« Reply #274 on: August 23, 2017, 09:14:35 PM »

I'm beginning to build up a picture in my mind it's probably wrong  :-\
If your line/circuit sync is lower than the upto sync for example your on 40/10 service and your only getting 24Mbps then the 3dB target will be implemented.

Your on a 40/10 service and very close to the max of say 38Mbps the 3dB target margin will not be implemented.

Your on a 55/10 service and not close to the max it will try the 3dB target and so on with 80/10
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displaced

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Re: 3dB Target SNRm Live?
« Reply #275 on: August 28, 2017, 07:32:55 PM »

Well, been on a 4dB profile for a couple of days and it's solid.  Attainable up from 47 to 53 -- so each 3dB drop gave a rise of about 3Mbit.

ESs are at about 20-odd per day, and SES are between zero and 10 per day.  So I imagine its likely that the line will drop to a 3dB Target SNRM soon. 

If that gets me to 57Mbit attainable, I'll be very happy.  57Mbit is what my line got when FTTC was first enabled back in 2012.  Undoing the speed loss due to crosstalkers would be nice!
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YouFibre 1Gbit, OPNsense on Intel N100.  Ubiquiti UAPs.

AngelRex

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Re: 3dB Target SNRm Live?
« Reply #276 on: September 04, 2017, 02:28:37 PM »

Does anyone know if this is still estimated to complete this month?

Is it still the general consensus that we will only get it if DLM thinks your line can take it?
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Dray

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Re: 3dB Target SNRm Live?
« Reply #277 on: September 04, 2017, 03:45:51 PM »

I'm beginning to build up a picture in my mind it's probably wrong  :-\
If your line/circuit sync is lower than the upto sync for example your on 40/10 service and your only getting 24Mbps then the 3dB target will be implemented.

Your on a 40/10 service and very close to the max of say 38Mbps the 3dB target margin will not be implemented.

Your on a 55/10 service and not close to the max it will try the 3dB target and so on with 80/10

I was on 79,574 and then the 3dB target was implemented and I'm now on 79,999 at 4.5dB
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NewtronStar

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Re: 3dB Target SNRm Live?
« Reply #278 on: September 04, 2017, 11:13:14 PM »

I was on 79,574 and then the 3dB target was implemented and I'm now on 79,999 at 4.5dB

Your a lucky boy as I said I'm probably wrong but I'll stick with my observation, the SNRM changes to XdB started to happen in FEB-MARCH 2017 its either a very slow rollout or specific to the circuits requirement which is what I am trying to find out.

I have seen really bad circuits with mad SNRM fluxuation and errored seconds and still it lowers the SNRM margin yet their attainable is lower than the max for that service  :-\
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lee111s

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Re: 3dB Target SNRm Live?
« Reply #279 on: September 04, 2017, 11:18:59 PM »

I'm on a 3dB as of Sunday morning.

77211 sync on a ~600m line (19.3db attn).

Cab is full, expecting last few circuits to go live this week so would hope I've had my whack of crosstalk.

Only time will tell :)
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NewtronStar

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Re: 3dB Target SNRm Live?
« Reply #280 on: September 04, 2017, 11:31:49 PM »

I'm on a 3dB as of Sunday morning.

77211 sync on a ~600m line (19.3db attn).

Cab is full, expecting last few circuits to go live this week so would hope I've had my whack of crosstalk.

Only time will tell :)

Typical Willy Waver don't mind me I'm just jealous and frustrated most new members lines are getting faster these days a a full 80/20 service would do me for another 5 years  ;)
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lee111s

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Re: 3dB Target SNRm Live?
« Reply #281 on: September 04, 2017, 11:44:53 PM »

Haha!

Just quite impressed (and surprised) more than anything. Line estimate is 45-61 clean.

It's a "new" estate with all ducted cables. I say new, it's been being built for around 9 years which is why there's no FTTP.

Previously had 2meg ADSL so it's quite an improvement :D
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AngelRex

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Re: 3dB Target SNRm Live?
« Reply #282 on: September 05, 2017, 11:04:03 AM »

I think my line is about 800m 22.8db attenuation (according to the fttc engineer back in 2015 and his device).

I was always max attain 42-44mb / 6mb.  since mid May this has plummented to 37.5mb max attain - however a powercut a few weeks back put me back to 42mb attain and a spike in CRC errors caused a resync then back again to 37.5mb max..... ffs

I'm only on a 40/10 service but would like to be back in the mid 40's where possible.  I've no idea if I have crosstalk, rein or a problem on the line - there are no issues when making calls so i'm guessing something else has kicked it out :/

Hoping this 3db will help!
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marjohn56

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Re: 3dB Target SNRm Live?
« Reply #283 on: September 10, 2017, 01:17:56 PM »

Reduction took place last weekend, down to 3.3 and sync now at 74437. However, according to BTW Test results my IP profile rate is sat at 68Mpbs. I've reset the router and modem and it's not changed, stuck perhaps.
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OPNsense 18.* - Billion Bridge - Qotom Q355G4 - ISP - ZEN U.K.

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Dray

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Re: 3dB Target SNRm Live?
« Reply #284 on: September 10, 2017, 01:35:29 PM »

As that's 91% it could be you're on high retransmission
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