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Standard User antdono
(newbie) Thu 29-Jan-15 12:45:44
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Line errors - Are these ok


[link to this post]
 
Connection Information

Line state: Connected
Connection time: 0 days, 00:14:27
Downstream: 15.54 Mbps
Upstream: 1.125 Mbps

ADSL Settings

VPI/VCI: 0/38
Type: PPPoA
Modulation: G.992.5 Annex A
Latency type: Interleaved
Noise margin (Down/Up): 3.0 dB / 6.0 dB
Line attenuation (Down/Up): 27.1 dB / 16.6 dB
Output power (Down/Up): 19.9 dBm / 12.4 dBm
FEC Events (Down/Up): 25802 / 0
CRC Events (Down/Up): 1 / 0
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
HEC Events (Down/Up): 79 / 0
Error Seconds (Local/Remote): 1 / 0

These are the figures after a router reset
before the fec down was 17221244/0
Administrator MrSaffron
(staff) Thu 29-Jan-15 13:12:26
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Re: Line errors - Are these ok


[re: antdono] [link to this post]
 
FEC means interleaving has corrected the errors, so interleaving is doing it job

Changing from a 3dB to a 6dB noise margin and thus lower bin/bin loading may reduce the number of errors at the expensive of a Meg or so sync speed. Whether worth it depends on what effect the FEC corrections are having on your use of the line.

Edited by MrSaffron (Thu 29-Jan-15 17:40:50)

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User kwikbreaks
(eat-sleep-adslguide) Thu 29-Jan-15 14:36:53
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Re: Line errors - Are these ok


[re: antdono] [link to this post]
 
Check those errors after it's been up a while - it could be that a lot occurred during the sync negotiation and you gave no indication of the previous uptime when the count was very high.

Some routers - e,g. Speedtouch/Thomson/Technicolor certainly had a propensity to report huge numbers of FEC errors - I've no idea if the numbers were correct or not but they seemed to have no impact on performance when I had one.

====

Here is a thread showing some monster counts further down from a Speedtouch - http://forums.thinkbroadband.com/dslrouter/3100583-s...

Edited by kwikbreaks (Thu 29-Jan-15 14:45:29)


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Standard User XRaySpeX
(eat-sleep-adslguide) Thu 29-Jan-15 17:38:16
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Re: Line errors - Are these ok


[re: MrSaffron] [link to this post]
 
In reply to a post by MrSaffron:
6dB noise margin
It's 3dB, so does the "thus" still follow?

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC
Standard User Zarjaz
(eat-sleep-adslguide) Thu 29-Jan-15 17:40:34
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Re: Line errors - Are these ok


[re: XRaySpeX] [link to this post]
 
That's what Mr.S was saying, due to the lines 3db snore, then higher errors are to be expected. A 6db target may well lose the FECS, but at a loss of around a megs sync.

Administrator MrSaffron
(staff) Thu 29-Jan-15 17:41:13
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Re: Line errors - Are these ok


[re: XRaySpeX] [link to this post]
 
See edit, missed start of a sentence originally

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User XRaySpeX
(eat-sleep-adslguide) Thu 29-Jan-15 17:49:21
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Re: Line errors - Are these ok


[re: Zarjaz] [link to this post]
 
See!

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC
Standard User RobertoS
(elder) Thu 29-Jan-15 17:50:57
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Re: Line errors - Are these ok


[re: XRaySpeX] [link to this post]
 
Saw smile.

My broadband basic info/help site - www.robertos.me.uk | Domains,site and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 57.2/15.0Mbps @ 600m. - IPv4BQM IPv6BQM

"Angels can fly because they can take themselves lightly." - G K Chesterton.
Standard User Zarjaz
(eat-sleep-adslguide) Thu 29-Jan-15 17:51:34
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Re: Line errors - Are these ok


[re: XRaySpeX] [link to this post]
 
Ah, but I understood before the edit ! tonguetongue

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