VDSL Performance & Tuning

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'That VDSL Cat'
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#1061804 9-Jun-2014 14:53

might just be crosstalk..

specturm?

your line doesnt look too far off mine what mine looked like after i had a reset and my 8b profile took a dump.

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javadub

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#1062132 9-Jun-2014 19:58

Thanks for quick reply i have moved closer to cabinet might be 10 metre from it, in house next door i was getting 69 10 with 2db loss seems a bit strange.

one line from etp with new splinter install, rj 45 modem on 6.06 firmware

Thanks again i do understand that it all about the wiring but 3 db is pretty low isn't it

hio77

'That VDSL Cat'
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#1062136 9-Jun-2014 20:01

that line looks alot stronger than the stats previously posted, might be the scaling on it though.

your line is 3dB, almost certainly your gonna fall over to 17a within the month, cant assure you will get 69/10 as thats hitting the limit for vdsl, but it is well within the realm of possibility forsure!

just leave your modem constantly on, and let it do its thing!

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stevehodge

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#1062180 9-Jun-2014 20:57

javadub: Thanks for quick reply i have moved closer to cabinet might be 10 metre from it, in house next door i was getting 69 10 with 2db loss seems a bit strange.

one line from etp with new splinter install, rj 45 modem on 6.06 firmware

Thanks again i do understand that it all about the wiring but 3 db is pretty low isn't it

Nothing wrong with that spectrum. I'd downgrade the firmware if you can, the 5.51 firmware reportedly performed worse for short lines that 5.22. Maybe 6.06 has the same issue. Otherwise wait a month or two and see if you get onto 17a.

javadub

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#1062192 9-Jun-2014 21:10

thanks for replying guys

hio77

'That VDSL Cat'
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#1063359 11-Jun-2014 13:49

so, with the storms last night, this happened... no resync bursts thankfully..

plsno dlm!

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Jase2985

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#1063362 11-Jun-2014 13:52

Now i know what people with bad lines/high attenuation feel like. Got internet but no phone line, just sounds like it off the hook. Neighbors have the same problem. Hope it goes back to normal when chorus sort it out.

Bearers generic info                           DS             US
    Payload rate [Kbps]:                      23381          6996
    Attenuation [dB]:                           11.9           15.9
    Margins [dB]:                                 12.0           12.1
    Output power [dBm]:                     12.6           -11.8

    Number of bearers:                           1
    Bearer 0                                          DS             US
      INP [DMT symbols]:                       0.00           0.00
      Delay [ms]:                                  0.00           0.00
      Depth []:                                       1              0.00


G.997.1 Statistics (Current):

Failures:
    Line failures                                Near end
      Loss of signal (LOS):                      0
      Loss of frame (LOF):                       0
      Loss of power (LPR):                       0

Performance monitoring:
    Line PM:                                     Near end
      Error second (ES):                         10

    Channel PM:                                  Near end       Far end
      Bearer 0:
        Code Violation (CV):                     607            17
        FEC:                                       0              83

    ATM data path PM:                            Near end       Far end
      Bearer 0:
        HEC violation count (HEC):               9458           N/A

hio77

'That VDSL Cat'
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#1063365 11-Jun-2014 13:53

thats quite a drop in your speed!

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Jase2985

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#1063367 11-Jun-2014 13:56

yep about 250%, hope it goes back to normal when they fix the issue. Funny thing is it happened about 9am this morning though

all the neighbours have no phones also so i would imagine its a decent fault in the cabinet

jasona111

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#1064309 12-Jun-2014 18:41

Hi,

Since having VDSL installed in April, my latency and line speed have been dropping slowly... I've assuming it's retraining down, but from my limited knowledge everything seems reasonable... anyone able to suggest a fix?

hio77

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#1064364 12-Jun-2014 19:50

judging by the fact that your on DLM-6

ild agree, your line is retraining.

by any chance is it being knocked offline/rebooted a few times a day?

your line looks pretty error free, although it could just be that profile.

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jasona111

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#1064369 12-Jun-2014 19:55

Currently it's reporting 4+ days of VDSL uptime...

hio77

'That VDSL Cat'
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#1064378 12-Jun-2014 20:03

jasona111: Currently it's reporting 4+ days of VDSL uptime...

not quite my question..

your profile will have moved back if,

- your modem has disconnected too many times and seen to be unstable
- your line is noisey and is causing too many errors.
- dlm is just plain unhappy...

looking at your line, i suspect it is the first.

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jasona111

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#1064389 12-Jun-2014 20:13

I havent noticed any kicks, apart from my manual reboot on Sunday morning

hio77

'That VDSL Cat'
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#1064403 12-Jun-2014 20:28

jasona111: I havent noticed any kicks, apart from my manual reboot on Sunday morning

wait for its profile to drop back down then, might take a few weeks, we will see how your errors are looking after that.

your line looks pretty clean..

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