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-   -   General : Getting minus errors (https://www.cableforum.uk/board/showthread.php?t=33702244)

JordanTheToaster 27-01-2016 23:59
Getting minus errors
 
I'm 95% sure it shouldn't be going backwards

https://www.cableforum.co.uk/images/local/2016/01/6.jpg

dbateman2k5 28-01-2016 00:35
Re: Getting minus errors
 
I'm pretty sure that if there are no issues with your connection or speed, then I think the negative values are nothing to worry about. Someone else may be able to clarify this better than I have.

JordanTheToaster 28-01-2016 07:39
Re: Getting minus errors
 
Quote:
Originally Posted by dbateman2k5 (Post 35819195)
I'm pretty sure that if there are no issues with your connection or speed, then I think the negative values are nothing to worry about. Someone else may be able to clarify this better than I have.
Well about 5 minuets after this the amount of errors went into the millions the connection reset 5-6 times then came back but the upstream was down for about 6 hours before reconnecting

heero_yuy 28-01-2016 08:07
Re: Getting minus errors
 
Roll over of an "int" data-type? The coder probably never contemplated pre and post RS errors in the 100,000's

JordanTheToaster 28-01-2016 09:16
Re: Getting minus errors
 
Quote:
Originally Posted by heero_yuy (Post 35819206)
Roll over of an "int" data-type? The coder probably never contemplated pre and post RS errors in the 100,000's
Even resting the counters just makes it go to -1

arcimedes 28-01-2016 09:30
Re: Getting minus errors
 
Quote:
Originally Posted by heero_yuy (Post 35819206)
Roll over of an "int" data-type? The coder probably never contemplated pre and post RS errors in the 100,000's
Remember this information is aimed at a "professional" not the customer and you don't want to waste valuable memory for no reason.

The going to -1 immediately on resetting may be interesting but probably not.

JordanTheToaster 28-01-2016 09:31
Re: Getting minus errors
 
Quote:
Originally Posted by arcimedes (Post 35819211)
Remember this information is aimed at a "professional" not the customer and you don't want to waste valuable memory for no reason.

The going to -1 immediately on resetting may be interesting but probably not.
Its been all over the damn place since last night with it dropping 5 times over the course of 10 minuets then the connection just randomly dropping to sub 100kbs a second then coming back and now the errors are just going backwards and going into the millions randomly, i'm completely clueless as to what is happening

arcimedes 28-01-2016 09:35
Re: Getting minus errors
 
What do VM say? I would phone

JordanTheToaster 28-01-2016 09:59
Re: Getting minus errors
 
Quote:
Originally Posted by arcimedes (Post 35819213)
What do VM say? I would phone
I'm jinxing it by saying this but its been fine for a bit now

Kushan 28-01-2016 17:21
Re: Getting minus errors
 
Quote:
Originally Posted by heero_yuy (Post 35819206)
Roll over of an "int" data-type? The coder probably never contemplated pre and post RS errors in the 100,000's
Looks like a signed int16

MUD_Wizard 28-01-2016 17:26
Re: Getting minus errors
 
Quote:
Originally Posted by JordanTheToaster (Post 35819193)
I'm 95% sure it shouldn't be going backwards

https://www.cableforum.co.uk/images/local/2016/01/6.jpg
It's a feature of how the RS errors are calculated. Ignore it. Treat -ve the same as +ve.

Disconnections can cause a high number of RS errors, while it's trying to resync and reconnect.

You should always reset the RS errors after a reconnection (assuming your GUI has that feature).

Sephiroth 28-01-2016 18:45
Re: Getting minus errors
 
A feature, eh - Muddie!

Maybe a 10dB forward Path Attenuator would annul the post-RS errors.

MUD_Wizard 28-01-2016 19:08
Re: Getting minus errors
 
Quote:
Originally Posted by Sephiroth (Post 35819314)
A feature, eh - Muddie!
The -ve sign on the RS errors, yes a feature of the calculation method.

Quote:
Originally Posted by Sephiroth (Post 35819314)
Maybe a 10dB forward Path Attenuator would annul the post-RS errors.
No, won't have any affect. Maybe add a bit of noise if it's a dodgy FPA.

Sephiroth 28-01-2016 19:29
Re: Getting minus errors
 
It's popcorn time, Muddie!

When an integer goes negative, it's because of the integer type when the value overflows. Is that what you mean by a "feature"? i.e. a nice piece of sarcasm? In which case I've been a bit of a thicko!

Thge power level on this cheap equipment is very close to maximum in range value that VM recommend. So there could well be something overdriven which might account for the errors.

JordanTheToaster 28-01-2016 22:53
Re: Getting minus errors
 
Quote:
Originally Posted by Sephiroth (Post 35819322)
It's popcorn time, Muddie!

When an integer goes negative, it's because of the integer type when the value overflows. Is that what you mean by a "feature"? i.e. a nice piece of sarcasm? In which case I've been a bit of a thicko!

Thge power level on this cheap equipment is very close to maximum in range value that VM recommend. So there could well be something overdriven which might account for the errors.
The power levels only started getting this high when it was getting really cold outside otherwise it was normally 7-8

https://www.cableforum.co.uk/images/local/2016/01/3.jpg


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