Training History Problem

[Sebby]

 

I did clear the event log a few times during these 12 days, so it could well be that.

[Rik]

I'm tending to clear it most days now, shame there isn't the facility to email it and clear the log automatically.

[Simon]

How do you get to the stats that show any sync drops on these?

[Rik]

http://192.168.1.254/xslt?PAGE=J42

which after you enter the password, should take you to:

http://192.168.1.254/xslt

or

http://192.168.1.254/xslt?PAGE=J34&THISPAGE=J17&NEXTPAGE=J34

[Simon]

That doesn't get me any further than a time-out, Rik, but by replacing the IP with 'gateway.2wire.net', I get to the diagnostics page, which means nothing to me!

DSL Line (Wire Pair):     Line 1 (inner pair)
Downstream Rate Cap:    8128 kbps
Downstream Atten. at 300kHz:    31.3 dB
Uncancelled Echo:    -18.5 dB    Ok
VCXO Frequency Offset:    -7.2 ppm    Ok
Final Rx Gain:    20.2 dB    Ok
Impulse Noise Comp. Tones:    0    Ok
Excessive Impulse Noise:    0    Ok
Impulse noise protection:    1.79
Delay of latency path:    8.00 ms

Can't really post the Training History due to the horizontal format.

[Rik]

That training history is the bit you want, Simon. The first line should be when it last retrained, the second line the current stats.

[Simon]

Umm...

Code Select Expand

Time                            Line  Rate  Max1  Max2  Max3  Mgn1  Mgn2  Attn  Pwr  CRCs  FECs  INP  DLY
2008/02/10 10:59:17 GMT  1  4032  4044  4928  4928  15.0  18.0  34.7  19.7  767  16228  1.79  8.00

[Sebby]

Famous last words...

It looks like my router rebooted at some point during the night. It doesn't matter as it always re-syncs high enough to give me the same profile, but it's just strange that this seems to happen every 12 days...  

[Rik]

Umm...

Code Select Expand

Time                            Line  Rate  Max1  Max2  Max3  Mgn1  Mgn2  Attn  Pwr  CRCs  FECs  INP  DLY
2008/02/10 10:59:17 GMT  1  4032  4044  4928  4928  15.0  18.0  34.7  19.7  767  16228  1.79  8.00

That margin is very high. Looks like you've not retrained.

[Simon]

So, what do I do?

[Rik]

It looks like my router rebooted at some point during the night. It doesn't matter as it always re-syncs high enough to give me the same profile, but it's just strange that this seems to happen every 12 days... 

I get the same, Sebby. It seems to point the finger at the DSLAM, at least to me. For there to be a random burst of noise affecting both of us at 12 day intervals is stretching credibility.

[Sebby]

I think it's the router, Rik. Something is happening at 12 days that is making it reboot (not re-sync, as there is only a single entry in the training history). With my old SpeedTouch, I was able to stay sync'd for more than 12 days.

Like I say, it's no big deal, but I'd love to find the cause.

[Rik]

So, what do I do?

Well, it looks to me as if you synched during the evening, with a 15db target, then the margin rises during the day (quite normal, mine is 11 right now, from a target of 9). The only reason your margin would have gone to 15 is due to instability, so it's a matter of trying to maintain sync for 14 days, after which the target should be lowered.

I feel that you've probably got an extra 1500k in your line if you can get it stable.

[Rik]

Like I say, it's no big deal, but I'd love to find the cause.

My Netgear did exactly the same, which is why I felt it was external. Perhaps it's a Linux bug?

[Sebby]

Well, it looks to me as if you synched during the evening, with a 15db target, then the margin rises during the day (quite normal, mine is 11 right now, from a target of 9). The only reason your margin would have gone to 15 is due to instability, so it's a matter of trying to maintain sync for 14 days, after which the target should be lowered.

I thought Simon's target SNRM was always 15dB, Rik. Perhaps I'm thinking of someone else. 

[Sebby]

My Netgear did exactly the same, which is why I felt it was external. Perhaps it's a Linux bug?

Hmm, certainly possible.

[Simon]

Well, it looks to me as if you synched during the evening, with a 15db target, then the margin rises during the day (quite normal, mine is 11 right now, from a target of 9). The only reason your margin would have gone to 15 is due to instability, so it's a matter of trying to maintain sync for 14 days, after which the target should be lowered.

I feel that you've probably got an extra 1500k in your line if you can get it stable.

Isn't it going to be difficult to maintain sync for 14 days, if the thing does what yours does, and reboots after 12 days, or doesn't that matter?

[Rik]

I thought Simon's target SNRM was always 15dB, Rik. Perhaps I'm thinking of someone else. 

I confess, after a while, I get quite confused about who has what issue, Sebby. I'm going to have to start keeping notes.

[Rik]

Isn't it going to be difficult to maintain sync for 14 days, if the thing does what yours does, and reboots after 12 days, or doesn't that matter?

It doesn't seem to affect others, though, Simon - or, at least, no-one else had mentioned it.

[Sebby]

Isn't it going to be difficult to maintain sync for 14 days, if the thing does what yours does, and reboots after 12 days, or doesn't that matter?

My thoughts exactly, Simon. It may be worth seeing if IDNet can get it reset. If you tell them your story (i.e. you had a modem and now have a router) it may help persuade BT.

I confess, after a while, I get quite confused about who has what issue, Sebby. I'm going to have to start keeping notes.

It wouldn't be such a bad idea! 

[Rik]

... starts reading the small print of the Data Protection Act...

[Simon]

My thoughts exactly, Simon. It may be worth seeing if IDNet can get it reset. If you tell them your story (i.e. you had a modem and now have a router) it may help persuade BT.

I'll give it the 14 days and see what happens first, than I'll contact IDNet.

[Rik]

Anyone noticed that the reader in the smiley is Jewish?

[Inactive]

Anyone noticed that the reader in the smiley is Jewish?

??


Couldn't see his lower bits Rik.. 

[Rik]

He's reading 'back to front' which implies right to left, which implies Jewish. Either that or I need to get my eyes tested.