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    DLM finished?

    This is a discussion on DLM finished? within the Sky Broadband help forums, part of the Sky Broadband help and support category; Hello,my sky unlimited was turned on the 28th sept with a downstream sync of 4000,att 15db and noise margin of ...

    1. #1
      ulysses's Avatar
      ulysses is offline Sky User Member
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      DLM finished?

      Hello,my sky unlimited was turned on the 28th sept with a downstream sync of 4000,att 15db and noise margin of 31db.over the next few nights the sync speed raised from 4k to 6k then 9k then 12k and on finally on monday morning the stats below.however last night the speed didnt rise at all.does this mean that DLM has finished on my line and could someone tell me if my speeds are normal,also i see my uptime has not reset since my broadband was turned on,cheers

      Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
      WAN PPPoA 7482858 13698558 0 858 5587 139:46:25
      LAN 100M/Full 14398559 7912057 0 6658 1118 164:39:03
      WLAN 11M/54M 0 0 0 0 0 00:00:00
      ADSL Link Downstream Upstream
      Connection Speed 15356 kbps 944 kbps
      Line Attenuation 15 db 7 db
      Noise Margin 14 db 13 db


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    3. #2
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      Re: DLM finished?

      You could check your 'My Sky' page on the Sky web site. Since your WAN up time is over 72 hours, it should confirm that your initial DLM period has completed.

      I would then give Sky a call and ask for your line to be uncapped as you should be able to achieve the full 20Mb connection speed with those stats.

      You may need to make more than one phone call as not everyone has access to the correct systems to allow them to change your line settings.

      If possible ask if there are any CRC errors showing (it should be low to nil) and post your revised stats when all has been done. Sometimes they forget to uncap the upstream connection as well, so it is important to check this too.

      Sky Fibre Unlimited Pro: Connected at 80,000 kbps / 20,000 kbps
      Previous ADSL2+ Speed 19999 kbps 1153 kbps, Line Attenuation 17.5 db 6.9 db, Noise Margin 7.5 dB 8.7 dB
      Speedtest: 17.15MB/s 0.97Mb/s Ping 31 ms

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    5. #3
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      Re: DLM finished?

      Thanks for your reply,mysky says that traing on my line has begun from the 30th sept and should be completed in 10 days.my wan uptime hasnt reset at all during the time since my broadband has switched on even thou my speeds have increased every night up until monday morning which i thought was strange,is it possible dlm could still up my speeds tonight even thou it didnt last night,ill wait till it says training is finished and ring them,cheers

    6. #4
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      Re: DLM finished?

      my wan uptime hasnt reset at all during the time since my broadband has switched on even thou my speeds have increased every night
      This is a sign that SRA may be implemented. There was a report on the forum that this was being used on the SVBN but I did not think it was used during the training period.

      If it is being fully implemented, it will be good for those lines which loose a bit of speed during the night, the speed should return to normal as the noise margin rises and not need a reboot to get the speed back. The down side is that we will not be able to tell when DLM training has completed.

      TomD


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      Re: DLM finished?

      The speed went up slightly again last night with no wan downtime again,i guess im now getting all the speed i can get from this line althou the jump in speed was small compared to how much the noise margin dropped,thanks for the help and explanations

      new stats

      System Up Time: 196:08:49
      Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
      WAN PPPoA 11805018 21953993 0 1033 3554 171:16:06
      LAN 100M/Full 22662519 12244048 0 4925 1375 196:08:44
      WLAN 11M/54M 0 0 0 0 0 00:00:00
      ADSL Link Downstream Upstream
      Connection Speed 16381 kbps 944 kbps
      Line Attenuation 15 db 7 db
      Noise Margin 8 db 12 db

    9. #6
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      Re: DLM finished?

      You may find more changes are made.. as a 7dB margin is the target for Sky.

     

     

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