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Anonymous
(Unregistered)Sun 20-Nov-11 20:05:46
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Odd things about BE O2 conections


[link to this post]
 
Any spare snr margin is not shown/hidden
TSNR values are the set to symmetrical values available only in 3db steps ie 3-6-9-12
But show in routers stats as 3.5 6.5 always an extra 0.5db
why are these stats the way they are with be /o2 and not the same with other isp's ,
Has it got something to do with the method used to connect (IPOA)that actually does not work as it was supposed to do ? BTW not trying to have a pop or anything remotely similar ,just curious really
Standard User BatBoy
(legend) Sun 20-Nov-11 20:07:52
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Re: Odd things about BE O2 conections


[re: Anonymous] [link to this post]
 
In reply to a post by Anonymous:
Any spare snr margin is not shown/hidden
TSNR values are the set to symmetrical values available only in 3db steps ie 3-6-9-12
But show in routers stats as 3.5 6.5 always an extra 0.5db
why are these stats the way they are with be /o2 and not the same with other isp's ,
Has it got something to do with the method used to connect (IPOA)that actually does not work as it was supposed to do ? BTW not trying to have a pop or anything remotely similar ,just curious really
Any spare margin is used to up the sync speed.



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Standard User XRaySpeX
(eat-sleep-adslguide) Sun 20-Nov-11 20:10:19
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Re: Odd things about BE O2 conections


[re: Anonymous] [link to this post]
 
I've always wondered this when I was on O2 but never got any explanation from the O2 gurus here.

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 19 Meg WBC


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Standard User XRaySpeX
(eat-sleep-adslguide) Sun 20-Nov-11 20:16:13
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Re: Odd things about BE O2 connections


[re: BatBoy] [link to this post]
 
In reply to a post by BatBoy:
Any spare margin is used to up the sync speed.
Like this one?
ISP Package............Orange 8M.........O2 8M

Downstream
Speedtest (bps).........7.1M................7.2M
Sync Speed (bps).......8061K..............8187K
Attenuation (dB)........27....................27
SNM (dB)..................22...................6.5
Power (dB)................22...................18
I don't think so!

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 19 Meg WBC
Anonymous
(Unregistered)Sun 20-Nov-11 20:31:48
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Re: Odd things about BE O2 connections


[re: XRaySpeX] [link to this post]
 
In reply to a post by XRaySpeX:
In reply to a post by BatBoy:
Any spare margin is used to up the sync speed.
Like this one?
ISP Package............Orange 8M.........O2 8M

Downstream
Speedtest (bps).........7.1M................7.2M
Sync Speed (bps).......8061K..............8187K
Attenuation (dB)........27....................27
SNM (dB)..................22...................6.5
Power (dB)................22...................18
I don't think so!
yeah, it don't add up properly, even for those who can get a 24bit sync will only see what their target snrm no spare if they should have any, the upstream would be the more common out of the two, as a connection that i know used to give 8db spare margin with a sync of almost 1.3mbit before now gets just over 1.4mbit @ 6db no spare margin , attenuation is the same ???
Standard User BatBoy
(legend) Sun 20-Nov-11 20:33:12
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Re: Odd things about BE O2 connections


[re: XRaySpeX] [link to this post]
 
In reply to a post by XRaySpeX:
In reply to a post by BatBoy:
Any spare margin is used to up the sync speed.
Like this one?
ISP Package............Orange 8M.........O2 8M

Downstream
Speedtest (bps).........7.1M................7.2M
Sync Speed (bps).......8061K..............8187K
Attenuation (dB)........27....................27
SNM (dB)..................22...................6.5
Power (dB)................22...................18
I don't think so!
See above wink



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Standard User XRaySpeX
(eat-sleep-adslguide) Sun 20-Nov-11 21:01:47
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Re: Odd things about BE O2 connections


[re: BatBoy] [link to this post]
 
I've already seen! We are not talking about just 125K spare sync.

This is a line that does 16 Meg when it is uncapped from 8 Meg! As you should know from its attn.

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 19 Meg WBC

Edited by XRaySpeX (Sun 20-Nov-11 21:03:28)

Standard User BatBoy
(legend) Sun 20-Nov-11 21:11:18
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Re: Odd things about BE O2 connections


[re: XRaySpeX] [link to this post]
 
I can see from the power there is a line fault.



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Standard User RobertoS
(sensei) Sun 20-Nov-11 22:52:22
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Re: Odd things about BE O2 conections


[re: Anonymous] [link to this post]
 
Are you talking about the two capped products? I.e.O2 Standard (legacy), and Be Value in both legacy and current versions?

Or something else, such as day-to-day running, where the margin varies as expected.

The 0.5dB immediately after sync I agrre is odd, bur seems to be a differnet, though perhaps related, issue.

What's TSNR? Or am I just having a brain failure?

My broadband basic info/help site - www.robertos.me.uk
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Standard User XRaySpeX
(eat-sleep-adslguide) Sun 20-Nov-11 23:39:04
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Re: Odd things about BE O2 conections


[re: RobertoS] [link to this post]
 
In reply to a post by RobertoS:
Are you talking about the two capped products?
I know I posted examples above of two 8 Meg capped products, but the same findings held for the uncapped products, if you remember my Orange LLU vs. O2 experiment: http://forums.thinkbroadband.com/general/t/3887249-c...

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 19 Meg WBC
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