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Standard User eddie1150
(regular) Wed 22-Feb-12 11:05:25
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Can someone check these stats?


[link to this post]
 
http://s17.postimage.org/kwcinh4zj/modem1.jpg
http://s8.postimage.org/m73s5yx85/modem2.jpg
Could someone look at these stats?
the 2nd one is ok, but the 1st seems to have a lot of errors?
This is our office broadband, and the internet is terribly slow at the min
ta
Standard User RobertoS
(sensei) Wed 22-Feb-12 11:21:02
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Re: Can someone check these stats?


[re: eddie1150] [link to this post]
 
How many times did you disconnect and reconnect between those two sets of stats?

Do you ever tweak the noise margin setting? In the first set you have a margin of 2dB and an exceptionally high connection speed for the attenuation, in the second you have a margin of 11dB and have lost 7Mbps.

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - Plusnet Value Fibre.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
Standard User ian007jen
(member) Wed 22-Feb-12 11:21:10
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Re: Can someone check these stats?


[re: eddie1150] [link to this post]
 
Try a resync on modem 1.

Very high connection rate resulting in lots of RX CRC errors meaning data has to be re-transmitted .

Post the ADSL Down speed and SNR margin directly after reconnection

Ian


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Standard User eddie1150
(regular) Wed 22-Feb-12 11:27:57
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Re: Can someone check these stats?


[re: RobertoS] [link to this post]
 
Hi,
They are 2 seperate modems/lines




Ive resynched the modem1, and within 30s or so it had 400+ errors
does it look like a line fault?
Administrator MrSaffron
(staff) Wed 22-Feb-12 11:48:21
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Re: Can someone check these stats?


[re: eddie1150] [link to this post]
 
One has a 2dB margin, which is very low and thus any noise blips can cause errors, due to the bit loading per bin.

A 6dB target margin would be a better bet on line one. So not evidence of a line fault, just a line being pushed too hard.

Line two is under performing, but because it has a 11dB margin, hence the 9.x Meg connection, when a range of 12000Kbps to 15700Kbps is to be expected for 32dB attenuation.

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User ian007jen
(member) Wed 22-Feb-12 11:49:19
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Re: Can someone check these stats?


[re: eddie1150] [link to this post]
 
Post the ADSL Down speed and SNR margin directly after reconnection


Thanks (uptime on two picture about 1 hour)

also is there any information on interleaving or fastpath on the modems?

Ian
Standard User eddie1150
(regular) Wed 22-Feb-12 12:02:21
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Re: Can someone check these stats?


[re: MrSaffron] [link to this post]
 
Thanks,
is it just an unfortunate task of calling bt to change these?
i hate them frown
Standard User RobertoS
(sensei) Wed 22-Feb-12 14:23:48
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Re: Can someone check these stats?


[re: eddie1150] [link to this post]
 
Nothing to do with BT at this stage. You have strange stats but that doesn't necessarily mean you have a fault.

Which ISP are you with?

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - Plusnet Value Fibre.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
Standard User eddie1150
(regular) Wed 22-Feb-12 14:59:21
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Re: Can someone check these stats?


[re: RobertoS] [link to this post]
 
BT..
Standard User RobertoS
(sensei) Wed 22-Feb-12 15:37:14
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Re: Can someone check these stats?


[re: eddie1150] [link to this post]
 
You re-sync'ed modem 1. Please could we see the stats as they are now.

A re-sync of modem 2 is needed as well, then line stats from that.

Are the two running independently, or some form of load-balancing/bonding? (Not a subject I know anything about, but originally you implied everything was slow).

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - Plusnet Value Fibre.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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