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155 posts

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# 142431 12-Mar-2014 16:47
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Anyone has some information about the output of the xdslcmd on the HG659 VDSL Router?

I did a bit of poking around and it has a lot of options and a lot of information, presented in a not very nice format.

The most interesting output would be the following:

xdslcmd info --linediag1
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 1
Max: Upstream rate = 42528 Kbps, Downstream rate = 40664 Kbps
Path: 0, Upstream rate = 10342 Kbps, Downstream rate = 41055 Kbps

VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 42528 kbps 40664 kbps
Actual Aggregate Tx Power: 4.0 dBm 10.6 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): N/A 10.4 15.4 20.5 5.2 11.4 18.1
Signal Attenuation(dB): N/A 10.0 14.9 20.5 5.2 11.4 18.1
SNR Margin(dB): N/A 25.9 26.1 23.9 11.9 12.0 12.1


Anyone knows what the U0-U3 and D1-D3 Bands are?
Looks like U is for Uplink and D is for Downlink.

Cheers,
Liviu

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'That VDSL Cat'
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  # 1004431 12-Mar-2014 17:05
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U is uplink, and D is downlink.

vdsl has multiple bands for upload and download.




to what endpoint are you trying to achieve here?




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  # 1004438 12-Mar-2014 17:12
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Thanks for that.

I am trying to figure out the quality of my line. And why is the Downlink only 40Mbps :)

 
 
 
 


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  # 1004440 12-Mar-2014 17:14
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Have you seen http://www.neatstuff.co.nz/HG659.html?

I found "xdslcmd info --stats" more useful for my purpose :-)



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  # 1004443 12-Mar-2014 17:20
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scottjpalmer: Have you seen http://www.neatstuff.co.nz/HG659.html?

I found "xdslcmd info --stats" more useful for my purpose :-)


Yes, I saw that site. That's how I found out about the command :)

the --stats command shows an attenuation of 0. That's not very helpful :)

$ xdslcmd info --show
xdslcmd info --show
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 43800 Kbps, Downstream rate = 40860 Kbps
Path: 0, Upstream rate = 10342 Kbps, Downstream rate = 40861 Kbps

Link Power State: L0
Mode: VDSL2
StandardUsed: G.993.2_Annex_A
AllowedProfiles:8a,8b,8c,8d,12a,12b,17a,30a
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.2 27.4
Attn(dB): 0.0 0.0
Pwr(dBm): 10.6 3.3
VDSL2 framing
Path 0
B: 239 237
M: 1 1
T: 64 16
R: 0 16
S: 0.1869 0.7307
L: 10272 2792
D: 1 1
I: 240 255
N: 240 255
Counters
Path 0
OHF: 157210 40299
OHFErr: 0 1
RS: 157210 40299
RSCorr: 0 0
RSUnCorr: 0 0
LinkRetrain: 0
InitErrors: 0
InitTimeouts: 0
LossOfFraming: 0

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  # 1004446 12-Mar-2014 17:24
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considering the 17a profile, your lines obviously short enough for it.

could get TimA to pull out your exact attenuation figure.


your downstream SNR looks fine it looks like DLM has decided to pull back your line (it did the same on my line once i fixed a few issues)

could simply be cross talk, cable quality or RFI however..



would really need to look at your physical line, and a spectrum to get a good idea of it though.




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  # 1004454 12-Mar-2014 17:40
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PM me the details of your account.

Cheers

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  # 1004456 12-Mar-2014 17:44
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I think RFI.
Will run analyzer.

Cheers


LSD Results for Line: WTH_W-DSLAM-
Inspection ID:
Line Configuration
CPE Type: Unknown
DSL Type: non.shdsl.opermode vdsl2.g9932.profile.17a, line.type.pots, latency.fast
Line ID: WTH_W-DSLAM-
User Label: 1
Spectrum Profile Name: EUBAV-VDSL2-2
Service Profile Name: EUBAV-FF-FSFS
Service Template Name: VDSL2_17a_HSI
CPE Info
Modem Vendor ID:
System Vendor ID:
System Vendor Model:
Serial Number: Huawei CPE
Line Operational Info
Service Stability: UNSTABLE
Line Status: Up

Parameter Value (U) Value (D)
lqd.parameter.actual.bitrate 10344 40864
lqd.parameter.attainable.bitrate 43680 40832
lqd.parameter.rel.capacity.occupation 21 100
lqd.parameter.attenuation 13.8 8
lqd.parameter.loop.attenuation 14.4 8
lqd.parameter.noise.margin 27.3 12
lqd.parameter.actual.psd -65.5 -57.5
lqd.parameter.power 3 10.6
lqd.atm.traffic.rate.title 127158618 638836622


 
 
 
 


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  # 1004459 12-Mar-2014 17:47
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unstable on DLM-2? have you been rebooting your modem alot by any chance?





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  # 1004460 12-Mar-2014 17:49
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hio77: unstable on DLM-2? have you been rebooting your modem alot by any chance?




had one reboot an hour ago after 20 days DSL uptime :)

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  # 1004462 12-Mar-2014 17:51
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droopanu:
hio77: unstable on DLM-2? have you been rebooting your modem alot by any chance?




had one reboot an hour ago after 20 days DSL uptime :)


ah, that could have skewed results a tad being only an hour ago.

none the less, see how the test goes and take it from there.


attenuation of 8db on 17a certainly isnt too bad. 




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  # 1004464 12-Mar-2014 17:57
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hio77:
droopanu:
hio77: unstable on DLM-2? have you been rebooting your modem alot by any chance?




had one reboot an hour ago after 20 days DSL uptime :)


ah, that could have skewed results a tad being only an hour ago.

none the less, see how the test goes and take it from there.


attenuation of 8db on 17a certainly isnt too bad. 


The reboot was caused by me doing a "su -" on the cli of the modem.
It started loading modules and remounting file systems and pretty much crashed all processes. Had to do a restart to recover :D

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  # 1004466 12-Mar-2014 18:03
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droopanu:
hio77:
droopanu:
hio77: unstable on DLM-2? have you been rebooting your modem alot by any chance?




had one reboot an hour ago after 20 days DSL uptime :)


ah, that could have skewed results a tad being only an hour ago.

none the less, see how the test goes and take it from there.


attenuation of 8db on 17a certainly isnt too bad. 


The reboot was caused by me doing a "su -" on the cli of the modem.
It started loading modules and remounting file systems and pretty much crashed all processes. Had to do a restart to recover :D


apparently sudoing on busy box is bad then eh?




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Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.


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