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<div class="ncfrightbox"> {{Template:Troubleshooting DSL Links}} </div>
Your DSL modem and Bell's DSLAM continuously monitor the quality of your DSL line. You can obtain line statistical information from your modem to view your line quality and the goodness of your service.
Your DSL modem and Bell's DSLAM continuously monitor the quality of your DSL line. You can obtain line statistical information from your modem to view your line quality and the goodness of your service.


Bell is responsible for the quality of your line and it is worth noting that most of your monthly payment to NCF goes to Bell to provide DSL service on your line.
Bell is responsible for the quality of your line and it is worth noting that most of your monthly payment to NCF goes to Bell to provide DSL service on your line.


=How to interpret line stats=


==How to interpret line stats==
== Speed (Rate) ==
 
Download speed (measured as Mbps, Mb/s, kbps, kb/s) is faster than upload speed. You can confirm this number by doing a [[Speed#How_to_do_a_speed_test|speed test]].
=== Speed (Rate) ===
It is expected that download speed (measured as Mbps, Mb/s, kbps, kb/s) to be faster than upload speed. You can confirm this number by doing a [[Speed test (DSL)|speed test]].


=== Attenuation ===
== Attenuation ==
Attenuation is a measure (in dB) of how far (cable length, not line-of-sight) you are from the Bell equipment (DSLAM). Note that '''Lower is better''' as it indicates a shorter cable length.
Attenuation is a measure (in dB) of how far (cable length, not line-of-sight) you are from the Bell equipment (DSLAM). Note that '''Lower is better''' as it indicates a shorter cable length.


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=== Signal-to-Noise Ratio (SNR or Noise Margin) ===
== Signal-to-Noise Ratio (SNR or Noise Margin) ==
Signal-to-Noise Ratio is a measure (in dB) of how much electrical noise exists on your line. Too much noise can affect the DSL signal. '''Higher is better''' as it means you have more signal than noise.
Signal-to-Noise Ratio is a measure (in dB) of how much electrical noise exists on your line. Too much noise (low SNR) can affect DSL signal. '''Higher is better''' as it means you have more signal than noise.


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=== Errors ===
== Errors ==
The error figures are an indication of how many packets had to be re-transmitted because they contained an error and may be caused by line noise. Error counts are cumulative since the time DSL sync was last obtained. To reset the error counts, do a software restart of your modem, or power cycle your modem, or disconnect your DSL line for a minute or two.
The error figures are an indication of how many packets had to be re-transmitted because they contained an error and may be caused by line noise. Error counts are cumulative since the time DSL sync was last obtained. To reset the error counts, do a software restart of your modem, or power cycle your modem, or disconnect your DSL line for a minute or two.


The significance of error counts is unclear and may be meaningless. Some modems may misreport errors and even with errors, your service may be fine.
The significance of error counts is unclear and may be meaningless. Some modems may misreport errors and even with errors, your service may be fine.
=Line Profile stats reported by Bell=
You can see your stats as seen by NCF [https://www.ncf.ca/ncf/home/tools/dslLineStats.jsp here]. Note the date on that page that says when they were collected.


==Line Profile stats reported by Bell==
==Line Profile stats reported by Bell==
You can see your stats as seen by NCF [https://www.ncf.ca/ncf/home/tools/dslLineStats2.jsp here]. Note the date on that page that says when they were collected.
===Line Profile stats reported by Bell===


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==How to obtain line stats from your modem==
=How to obtain line stats from your modem=
===SpeedTouch 585 or 516v6===
==SpeedTouch 585 or 516v6==
[[File:SpeedTouchStats.png|thumb|right|Line stats displayed on a SpeedTouch 585v6 modem interface (Speedtouch 516v6 is similar)]]
[[File:SpeedTouchStats.png|thumb|right|Line stats displayed on a SpeedTouch 585v6 modem interface (Speedtouch 516v6 is similar)]]
# Log into the web interface of your modem ([[DSL modem web interface|how to log in]])
# Log into the web interface of your modem ([[Modem Web Interface|how to log in]])
# In the left column, click on 'Broadband Connection'
# In the left column, click on 'Broadband Connection'
# In the left column, click on 'DSL Connection'
# In the left column, click on 'DSL Connection'
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----
----


===SpeedTouch 516v5===
==SpeedTouch 516v5==
[[File:ST516v5 Line Stats.jpg|thumb|right|Line stats displayed on a SpeedTouch 516v5 modem interface]]
[[File:ST516v5 Line Stats.jpg|thumb|right|Line stats displayed on a SpeedTouch 516v5 modem interface]]


# Log into the web interface of your modem ([[DSL modem web interface|how to log in]])
# Log into the web interface of your modem ([[Modem Web Interface|how to log in]])
# In the left column, click 'Advanced'
# In the left column, click 'Advanced'
# Below that click 'Diagnostics'
# Below that click 'Diagnostics'
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----
----


===TP-Link 8816, 8901G or 8951ND===
==TP-Link 8816, 8901G or 8951ND==
[[File:TP-LinkStats.png|thumb|right|Line stats displayed on a TP-Link 8901G modem (8816 and 8951ND are similar)]]
[[File:TP-LinkStats.png|thumb|right|Line stats displayed on a TP-Link 8901G modem (8816 and 8951ND are similar)]]
These models of TP-Link modems all have similar interfaces:
These models of TP-Link modems all have similar interfaces:
# Log into the web interface of your modem ([[DSL modem web interface|how to log in]])
# Log into the web interface of your modem ([[Modem Web Interface|how to log in]])
# Click on 'Status'
# Click on 'Status'
# Click on 'Device Info'
# Click on 'Device Info'
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----
----


===TP-Link 8950ND===
==TP-Link 8950ND==
[[File:TP-Link 8950 LIne stats.JPG|thumb|right|Line stats displayed on a TP-Link 8950ND modem]]
[[File:TP-Link 8950 LIne stats.JPG|thumb|right|Line stats displayed on a TP-Link 8950ND modem]]
# Log into the web interface of your modem ([[DSL modem web interface|how to log in]])
# Log into the web interface of your modem ([[Modem Web Interface|how to log in]])
# Click on 'Device info'
# Click on 'Device info'
# Click on 'Statistics'
# Click on 'Statistics'
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----
----


===SmartRG 505n===
==SmartRG 505n==
[[File:SmartRG505N Line stats.png|thumb|right|Line stats displayed on a SmartRG505N modem]]
[[File:SmartRG505N Line stats.png|thumb|right|Line stats displayed on a SmartRG505N modem]]
# Log into the web interface of your modem ([[DSL modem web interface|how to log in]])
# Log into the web interface of your modem ([[Modem Web Interface|how to log in]])
# Click on 'Device info'
# Click on 'Device info'
# Click on 'Statistics'
# Click on 'Statistics'
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----
----


==See also==
=See also=
*[[DSL speed]]
*[[Speed]]


[[Category: DSL]]
[[Category:DSL]]
[[Category:Modems]]
[[Category:Troubleshooting]]

Latest revision as of 15:31, 1 August 2018

Troubleshooting DSL

Your DSL modem and Bell's DSLAM continuously monitor the quality of your DSL line. You can obtain line statistical information from your modem to view your line quality and the goodness of your service.

Bell is responsible for the quality of your line and it is worth noting that most of your monthly payment to NCF goes to Bell to provide DSL service on your line.

How to interpret line stats

Speed (Rate)

Download speed (measured as Mbps, Mb/s, kbps, kb/s) is faster than upload speed. You can confirm this number by doing a speed test.

Attenuation

Attenuation is a measure (in dB) of how far (cable length, not line-of-sight) you are from the Bell equipment (DSLAM). Note that Lower is better as it indicates a shorter cable length.

AttenuationRating
0 - 40Excellent
40 - 50Good
50 - 60Fair
>60Poor

Signal-to-Noise Ratio (SNR or Noise Margin)

Signal-to-Noise Ratio is a measure (in dB) of how much electrical noise exists on your line. Too much noise (low SNR) can affect DSL signal. Higher is better as it means you have more signal than noise.

SNRRating
>20Excellent
20-10Good
10-6Fair
6-0Poor

Errors

The error figures are an indication of how many packets had to be re-transmitted because they contained an error and may be caused by line noise. Error counts are cumulative since the time DSL sync was last obtained. To reset the error counts, do a software restart of your modem, or power cycle your modem, or disconnect your DSL line for a minute or two.

The significance of error counts is unclear and may be meaningless. Some modems may misreport errors and even with errors, your service may be fine.

Line Profile stats reported by Bell

You can see your stats as seen by NCF here. Note the date on that page that says when they were collected.

Line Profile stats reported by Bell

Line Operational Status 613-xxx-xxxx (DSL phone number, may or not be your Bell #)
Line Status: In Service (preferred)
Out of Service (trouble!) 		UpTime: (not a useful field, usually not populated by Bell)
Line Profile Name: Example: al1_d6016-384_u800-256 Last State Change: mm/dd hh:mm:ss
(last time the Line Profile was provided)
DLM State:
(Dynamic Line Manager,
a process on the DSLAM) 		Active or OPERATIONS (preferred)

PENDING (new line activation)
Disabled (manual handling)
Failed (DLM can’t set a Line Profile)
Unstable (DLM is unable to set a Line Profile)

Equipment Type:
(DSLAM) 		Example: 7330_REM
There are many types of DSLAMs deployed by Bell in the field. The above was built by Newbridge/Alcatel-Lucent, today's Nokia
Operational Status Speed (Kbs) Relative Capacity Occupation (%) Noise Margin (0..31 dB) Signal Power (0..20 dBm) Attenuation (0..60 dB) Block count
UpStream
(upload) 		Example: 797.0 Lower is better

< 85% is the preferred range 		Higher is better

> 20 dB: Excellent
20 - 10 dB: Good
10 - 6 dB: Fair
< 6 dB: Poor

Lower is better

Tied to RCO, SNR & Attenuation 		Lower is better

< 40 dB: Excellent
40 - 50 dB: Good
50 - 60 dB: Fair
> 60 dB: Poor

Some number that is not very useful
DownStream
(download) 		Example: 6014.0

How to obtain line stats from your modem

SpeedTouch 585 or 516v6

Line stats displayed on a SpeedTouch 585v6 modem interface (Speedtouch 516v6 is similar)
  1. Log into the web interface of your modem (how to log in)
  2. In the left column, click on 'Broadband Connection'
  3. In the left column, click on 'DSL Connection'
  4. In the top-right area, click on 'Details'

Depending on your modem model and configuration, the numbers may be displayed with commas and periods in the European manner, which is the reverse of what is common in North America. For example: 1,000.12 for 'one thousand decimal 12' may be displayed as '1.000,12'.




SpeedTouch 516v5

Line stats displayed on a SpeedTouch 516v5 modem interface
  1. Log into the web interface of your modem (how to log in)
  2. In the left column, click 'Advanced'
  3. Below that click 'Diagnostics'
  4. Above click the + sign beside 'Expand All'
  5. Scroll down to the section 'Wan' ... 'Dsl'






TP-Link 8816, 8901G or 8951ND

Line stats displayed on a TP-Link 8901G modem (8816 and 8951ND are similar)

These models of TP-Link modems all have similar interfaces:

  1. Log into the web interface of your modem (how to log in)
  2. Click on 'Status'
  3. Click on 'Device Info'






TP-Link 8950ND

Line stats displayed on a TP-Link 8950ND modem
  1. Log into the web interface of your modem (how to log in)
  2. Click on 'Device info'
  3. Click on 'Statistics'
  4. Click on 'ADSL'






SmartRG 505n

Line stats displayed on a SmartRG505N modem
  1. Log into the web interface of your modem (how to log in)
  2. Click on 'Device info'
  3. Click on 'Statistics'
  4. Click on 'xDSL'








See also

Retrieved from "https://help.ncf.ca/index.php?title=Line_Stats&oldid=5607"