Changes to DLM Incoming

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Lizard Networks

#1788838 26-May-2017 16:56

miztic:

My VDSL connection got upgraded about 2 nights ago, went from 33Mbit Down & 7 Mbit up to 40 Mbit Down & 10Mbit up.

I'm wondering, should i change the VDSL profile on my modem (dsl n66u) from 30a multimode to 17a multimode (now that i'm on 17a instead of 8b)? or will that not change anything.

Don't mess with that.

Realistically 17a vs 30a multimode will only be able to do 8b/17a on nz connections but still..

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AidanP

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#1788847 26-May-2017 17:06

smalltrader:

AidanP: Today my modem reset, was getting 53/9 now I'm getting 35/12 with the line stats looking like this
Hopefully my download will increase with the days coming, currently on the 8b profile and only 250m from the cabinet

250m from the cabinet. You should be getting much better speed than 35/12. Suspect some kind of in house of outside wiring issues. Do you have a master splitter in the house?

ddDLM is decreasing your down stream sync speed significantly which is odd, perhaps wiring or interference issues. The up stream sync speed increase is expected as that seems to be the main benefits of ddDLM.

yes i have a master splitter, had to install it ourself as slingshot insisted that we didnt need one, anyway is has cat 6 wiring

AidanP

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#1788865 26-May-2017 17:57

Also just a quick question, would anyone tell me what band card my cabinet has in it, the cabinet ID is TAWAC, thanks

hio77

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#1788868 26-May-2017 17:58

AidanP:

Also just a quick question, would anyone tell me what band card my cabinet has in it, the cabinet ID is TAWAC, thanks

cabinets can have multiple linecards in them, what sort of modem do you have?

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AidanP

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#1788870 26-May-2017 18:04

hio77:

AidanP:

Also just a quick question, would anyone tell me what band card my cabinet has in it, the cabinet ID is TAWAC, thanks

cabinets can have multiple linecards in them, what sort of modem do you have?

The Netcomm NF4V

hio77

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#1788873 26-May-2017 18:13

AidanP:

hio77:

AidanP:

Also just a quick question, would anyone tell me what band card my cabinet has in it, the cabinet ID is TAWAC, thanks

cabinets can have multiple linecards in them, what sort of modem do you have?

The Netcomm NF4V

Ah pretty sure that one only spits out vendor clientside.

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Jase2985

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#1788989 27-May-2017 05:26

hio77:

AidanP:

hio77:

AidanP:

Also just a quick question, would anyone tell me what band card my cabinet has in it, the cabinet ID is TAWAC, thanks

cabinets can have multiple linecards in them, what sort of modem do you have?

The Netcomm NF4V

Ah pretty sure that one only spits out vendor clientside.

don't think it does in the GUI but im pretty sure it does via the CLI

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datahawk

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#1789047 27-May-2017 09:57

Another long awaited visit from DLM at 4am today.

Finally our Far End SNR Margin has dropped from 12db down to 5dB.

This produced a +2Mbps upload sync but still stuck on 8B. Interleave is not moving yet, so our ping is still up at 13ms.

---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
   Running Mode            :       8B                     State                 : SHOWTIME
   DS Actual Rate          : 74141000 bps            US Actual Rate       : 12911000 bps
   DS Attainable Rate      : 74296536 bps           US Attainable Rate   : 12884000 bps
   DS Path Mode            :  Interleave               US Path Mode      :        Fast
   DS Interleave Depth     :      248                   US Interleave Depth  :       16
   NE Current Attenuation  :        9 dB               Cur SNR Margin      :        6  dB
   DS actual PSD           :   -12.-6 dB                US actual PSD       :    16. 2  dB
   NE CRC Count            :        6                      FE CRC Count        :        2
   NE ES Count            :        2                      FE  ES Count           :        2
   Xdsl Reset Times        :        0                      Xdsl Link  Times    :        2
   ITU Version[0]          : b5004946                   ITU Version[1]       : 544e0000
   VDSL Firmware Version   : 05-07-09-0F-01-07   [with Vectoring support]
   Power Management Mode   : DSL_G997_PMS_L0
   Test Mode               : DISABLE
  -------------------------------- ATU-C Info ---------------------------------
   Far Current Attenuation :        8 dB   Far SNR Margin       :        5  dB
   CO ITU Version[0]       : b5004244                CO ITU Version[1]    : 434da3f5
   DSLAM CHIPSET VENDOR    : < BDCM >

Radiotron

180 posts

Master Geek

#1790307 27-May-2017 17:20

Noise margin change from from 9dB to 6dB kicked in today on 17a profile. Now 70/23, however speedtest reports up speed still maxing out at 10. Orcon connection with the supplied NF4V. Ping Sounddude, can anything be changed to make use of the increase in up speed, a profile setting at the other end?

freakngeek

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#1790345 27-May-2017 18:31

If your maximum connection speed is much higher than actual check the Interleave Depth
What seems to be happening is Interleave Depth is used to make a line stable

I've been doing heaps of firmware and SNR tests and last night the Cabinet decided to give me a much much higher Interleave depth
My max Connection speed is as it was, but attainable dropped by 8Mbps (downstream only)
Interleave depth went from 170's to over 700 for same connection speed, and I can pretty safely assume that the interleaving is at play with ddDLM
Am hoping a stable line for a few weeks will bring down the interleave depth

---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 34434000 bps US Actual Rate : 7986000 bps
DS Attainable Rate : 43026872 bps US Attainable Rate : 7970000 bps
DS Path Mode : Interleave US Path Mode : Interleave
DS Interleave Depth : 721 US Interleave Depth : 17
NE Current Attenuation : 26 dB Cur SNR Margin : 9 dB
DS actual PSD : 6. 1 dB US actual PSD : 14. 5 dB
NE CRC Count : 0 FE CRC Count : 1957
NE ES Count : 0 FE ES Count : 1657
Xdsl Reset Times : 0 Xdsl Link Times : 1
ITU Version[0] : b5004946 ITU Version[1] : 544e0000
VDSL Firmware Version : 05-07-09-0F-01-07 [with Vectoring support]
Power Management Mode : DSL_G997_PMS_L0
Test Mode : DISABLE
-------------------------------- ATU-C Info ---------------------------------
Far Current Attenuation : 28 dB Far SNR Margin : 8 dB
CO ITU Version[0] : b5004244 CO ITU Version[1] : 434da3f5
DSLAM CHIPSET VENDOR : < BDCM >

datahawk

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#1790400 27-May-2017 21:42

freakngeek:

DS Interleave Depth : 721 US Interleave Depth : 17

Wow, that is deep. Did that bump up your speed test ping?

freakngeek

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#1790402 27-May-2017 21:46

datahawk:

Wow, that is deep. Did that bump up your speed test ping?

Nope Speedtest ping still on 37ms same as always from that server

datahawk

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#1790403 27-May-2017 21:53

freakngeek:

Nope Speedtest ping still on 37ms same as always from that server

OK, I see now after checking my previous interleave stats that my ping has also been static at 13ms regardless of depth which also jumped from 0 to ~250 when I played with the Draytek SNR adjustment and firmware updates.

freakngeek

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#1790406 27-May-2017 22:02

datahawk:OK, I see now after checking my previous interleave stats that my ping has also been static at 13ms regardless of depth which also jumped from 0 to ~250 when I played with the Draytek SNR adjustment and firmware updates.

Dilemma is if I use the STD firmware there are no Stats at all, other than connection speed, SNR, and DS attenuation
I tried various FW going back to 2015 but no stats show with STD FW

Stats do show with Modem 4 and 8
Modem 8 gives me Profile 17a as I'm at currently by default
Modem 4 and STD gives me Profile 8b, modem 4 goes to Profile 17a with a SNR tweak.

Currently running Modem 8, with no SNR adjustments
I'll leave it like this till all my solar gear turns up and I move modem closer to the road
I'll see what happens, can live with the current speed as I have a carrot to look forward to.

datahawk

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#1790408 27-May-2017 22:23

freakngeek:

Dilemma is if I use the STD firmware there are no Stats at all, other than connection speed, SNR, and DS attenuation
I tried various FW going back to 2015 but no stats show with STD FW

Ha, I feel your pain. I was also previously on a STD firmware and was fooled into believing I had a perfect line because all the CRC and error stats were zero for years :)

I'm sticking with Modem 8 also - It's stable so I'm just leaving it alone.

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