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Standard User XRaySpeX
(eat-sleep-adslguide) Sat 30-Mar-13 00:59:08
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Re: Switching to BT - My Experiences


[re: matthewcl375] [link to this post]
 
Can go either way. See my experience 1.5 years ago, 3 posts from: http://forums.thinkbroadband.com/freeserve/t/4045564... . I think I've been on Fast Path @ 3 dB NM ever since.

However the Interleaving depth (depth =1 for Fast Path) is set auto by DLM and if the line is not stable enough to take Fast Path it is unlikely that it will bear a 3 dB NM with the benefit of fast sync speeds.

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
Administrator MrSaffron
(staff) Sat 30-Mar-13 09:22:53
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Re: Switching to BT - My Experiences


[re: BatBoy] [link to this post]
 
Original poster needs to stop worrying and just use connection

Andrew Ferguson, [email protected]
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 XRaySpeX
(eat-sleep-adslguide) Sat 30-Mar-13 14:32:49
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Re: Switching to BT - My Experiences


[re: MrSaffron] [link to this post]
 
Exactly, just as I was thinking, a watched router never boils grin

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


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Standard User matthewcl375
(committed) Sat 30-Mar-13 22:13:07
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Re: Switching to BT - My Experiences


[re: XRaySpeX] [link to this post]
 
Fair, stats after 1 day 10 hours on fastpath:

Connection Information

Line state: Connected
Connection time: 1 days, 09:30:19
Downstream: 16.06 Mbps
Upstream: 1.156 Mbps

ADSL Settings

VPI/VCI: 0/38
Type: PPPoA
Modulation: G.992.5 Annex A
Latency type: Fast
Noise margin (Down/Up): 8.8 dB / 6.4 dB
Line attenuation (Down/Up): 6.2 dB / 3.3 dB
Output power (Down/Up): 19.9 dBm / 11.7 dBm
FEC Events (Down/Up): 0 / 0
CRC Events (Down/Up): 22 / 58
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): 13 / 71
Error Seconds (Local/Remote): 30 / 121
Standard User 4M2
(fountain of knowledge) Sat 30-Mar-13 22:19:24
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Re: Switching to BT - My Experiences


[re: matthewcl375] [link to this post]
 
Hopefully after the next re-sync (don't reboot yourself) the downstream sync time SNRM will drop to 6dB (or even 3dB) and then you will be smiling smile
Standard User matthewcl375
(committed) Sat 30-Mar-13 23:55:06
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Re: Switching to BT - My Experiences


[re: 4M2] [link to this post]
 
Does this follow the same as before: after 10 days the DLM will lower your Target Noise Margin providing the line is stable?
Standard User 4M2
(fountain of knowledge) Sun 31-Mar-13 00:02:02
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Re: Switching to BT - My Experiences


[re: matthewcl375] [link to this post]
 
Others will hopefully answer that - I'm on partial LLU, which as I said before, is a very different "kettle of fish". But I'm sure any advice will be to just remain patient smile
Standard User matthewcl375
(committed) Sun 31-Mar-13 15:25:07
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Re: Switching to BT - My Experiences


[re: 4M2] [link to this post]
 
Hub's done another re-sync and I think the Target Noise Margin is now 6db, giving a rough 1mb increase in sync speed

Connection Information

Line state: Connected
Connection time: 0 days, 02:49:07
Downstream: 17.09 Mbps
Upstream: 1.125 Mbps

ADSL Settings

VPI/VCI: 0/38
Type: PPPoA
Modulation: G.992.5 Annex A
Latency type: Fast
Noise margin (Down/Up): 7.2 dB / 6.8 dB
Line attenuation (Down/Up): 6.2 dB / 3.3 dB
Output power (Down/Up): 20.0 dBm / 11.3 dBm
FEC Events (Down/Up): 0 / 0
CRC Events (Down/Up): 0 / 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): 0 / 0
Error Seconds (Local/Remote): 53 / 121

Edited by matthewcl375 (Sun 31-Mar-13 15:45:54)

Standard User 4M2
(fountain of knowledge) Sun 31-Mar-13 16:47:39
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Re: Switching to BT - My Experiences


[re: matthewcl375] [link to this post]
 
Looking good smile

Edit: its really interesting to see that on your very short line the ADSL2+ attenuations are the same as when you were on G.992.1 annex A...

Edited by 4M2 (Sun 31-Mar-13 16:51:48)

Standard User XRaySpeX
(eat-sleep-adslguide) Sun 31-Mar-13 17:44:12
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Re: Switching to BT - My Experiences


[re: 4M2] [link to this post]
 
(Not the Up attn.).

Or the 21CN kit has less resistance

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
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