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Standard User dontasciime
(newbie) Sat 04-Jul-15 15:09:05
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Had FTTC since June 2012 [77.42 well 77.43Mbps to start with


[link to this post]
 
Can somone that knows how to interpret the stats please look to see why my profile dropped from 77.42/ 71.62 sometimes and now it's dropped to 63 (I am aware of crosstalk(you can see it in play from start to finish date somewhat) and the solution if it gets switched on in the cab I'm connected to) I would just like someone to either say yes that is the reason or no something else is up as of from 2012 till 2 days ago it was 77.42/71.62 then after lightning storms etc 65/64/63

stats from 2012>2015 below

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 32311 Kbps, Downstream rate = 100456 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 32311 kbps 100456 kbps
Actual Aggregate Tx Power: 4.4 dBm 13.8 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 0.1 14.1 25.3 N/A 9.9 22.2 34.6

Signal Attenuation(dB): 0.1 14.0 25.2 N/A 9.9 22.2 34.6

SNR Margin(dB): 9.6 11.1 13.6 N/A 11.4 11.4 11.7

TX Power(dBm): -6.3 -28.2 3.9 N/A 11.0 7.4 7.4





22:58 26/07/2012


# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 32276 Kbps, Downstream rate = 96608 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 32276 kbps 96608 kbps
Actual Aggregate Tx Power: 4.4 dBm 13.8 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 0.1 14.1 25.3 N/A 9.9 22.2 34.6

Signal Attenuation(dB): 0.1 14.0 25.2 N/A 9.9 22.2 34.6

SNR Margin(dB): 7.3 7.7 15.0 N/A 9.8 10.6 10.7

TX Power(dBm): -6.3 -28.2 3.9 N/A 11.0 7.4 7.4



13:05 28/07/2012

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 2
Max: Upstream rate = 31589 Kbps, Downstream rate = 102180 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 31589 kbps 102180 kbps
Actual Aggregate Tx Power: 5.1 dBm 13.8 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 0.1 14.1 25.5 N/A 9.9 22.3 34.9

Signal Attenuation(dB): 0.1 14.1 25.4 N/A 9.9 22.3 34.9

SNR Margin(dB): 13.7 13.2 12.7 N/A 7.6 7.5 7.9

TX Power(dBm): -5.9 -29.9 4.7 N/A 10.8 7.4 7.5

#


14:45 04/07/2015


ATP>sh


BusyBox v1.9.1 (2010-10-15 17:59:06 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 28551 Kbps, Downstream rate = 80184 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 65766 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 28551 kbps 80184 kbps
Actual Aggregate Tx Power: 4.4 dBm 13.8 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 0.3 14.4 25.6 N/A 10.0 22.4 35.0

Signal Attenuation(dB): 0.3 14.3 25.5 N/A 10.0 22.4 35.0

SNR Margin(dB): 10.5 10.0 9.9 N/A 6.4 6.4 6.6

TX Power(dBm): -5.1 -30.9 3.9 N/A 11.0 7.4 7.4

#


Thanks and sorry because I know this board is inundated with this type of question
Administrator MrSaffron
(staff) Sat 04-Jul-15 16:26:59
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Re: Had FTTC since June 2012 [77.42 well 77.43Mbps to start


[re: dontasciime] [link to this post]
 
Crosstalk looks likely but with out a spectrum analyser on the line and your hardware all disconnected hard to say how much cross talk you are seeing.

Storms and other errors over time may have triggered DLM but this does relent after a period of stability

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User dontasciime
(newbie) Sat 04-Jul-15 17:07:58
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Re: Had FTTC since June 2012 [77.42 well 77.43Mbps to start


[re: MrSaffron] [link to this post]
 
Thanks but I thought DLM was off since the end of 2014 because of patent claims.

Edited by dontasciime (Sat 04-Jul-15 17:09:53)


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Administrator MrSaffron
(staff) Sat 04-Jul-15 18:52:31
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Re: Had FTTC since June 2012 [77.42 well 77.43Mbps to start


[re: dontasciime] [link to this post]
 
Only a little bit of it

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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