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Standard User MHC
(sensei) Sun 23-Aug-15 21:07:26
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Good Sync Rate


[link to this post] 		 
Have just rebooted my HG612 - a rare occurrence!

On a 450m line, I have some pretty good stats:

Text
1
23
45
67
89
1011
1213
1415
1617
1819

xdslcmd info --stats
xdslcmd: ADSL driver and PHY statusStatus: Showtime
Retrain Reason: 0Last initialization procedure status:   0
Max:    Upstream rate = 23114 Kbps, Downstream rate = 80332 KbpsBearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 79999 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 KbpsLink Power State:       L0
Mode:                   VDSL2 Annex BVDSL2 Profile:          Profile 17a
TPS-TC:                 PTM Mode(0x0)Trellis:                U:ON /D:ON
Line Status:            No DefectTraining Status:        Showtime
                Down            UpSNR (dB):        6.5             15.1
Attn(dB):        16.7            0.0Pwr(dBm):        13.6            7.0


And TBB speedtest is showing 74.6 Mbps - quite happy with that.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User adslmax
(knowledge is power) Sun 23-Aug-15 22:05:24
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Re: Good Sync Rate


[re: MHC] [link to this post] 		 
That's a pretty good stats as I can see SNR 6dB mean this is your final max line rate and who is your isp?

Edited by adslmax (Sun 23-Aug-15 22:06:34)
Standard User MHC
(sensei) Sun 23-Aug-15 22:17:10
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Re: Good Sync Rate


[re: adslmax] [link to this post] 		 
BT and the BT wholesale test gives a download rate at 77.5Mbps ...

I would say very good given the line length.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit


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Standard User adslmax
(knowledge is power) Sun 23-Aug-15 22:39:18
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Re: Good Sync Rate


[re: MHC] [link to this post] 		 
It's would be set at 77.35Mbps set by BT Openreach if it was G.INP enabled. Otherwise it will be set at 77.44Mbps if it was on fast path.
Standard User tommy45
(knowledge is power) Sun 23-Aug-15 23:20:40
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Re: Good Sync Rate


[re: MHC] [link to this post] 		 
In reply to a post by MHC:
BT and the BT wholesale test gives a download rate at 77.5Mbps ...

I would say very good given the line length.
that BTW PT speedtest is wildly inaccurate i have had ds results in excess of the BTWi IP profile of 77.35 since moving to zen, but in reality throughput is lower around 74.5-75.2 mbps
Standard User deleted
(deleted) Mon 24-Aug-15 01:11:45
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Re: Good Sync Rate


[re: MHC] [link to this post] 		 
Doesn't really fit in with the table on the website.

Fibre Broadband Guide

I was preparing myself for a 45Mbps connection when FTTC arrives, but you give me a lot of hope.
Standard User deleted
(deleted) Mon 24-Aug-15 08:46:14
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Re: Good Sync Rate


[re: deleted] [link to this post] 		 
I expect you're one of the first people in your area to get FTTC and unfortunately I expect your sync speed will decrease due to crosstalk frown
Administrator MrSaffron
(staff) Mon 24-Aug-15 08:57:21
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Re: Good Sync Rate


[re: deleted] [link to this post] 		 
Table assumes an almost worse case cross-talk scenario and thus follows the model of people being happy as they usually get better than the table suggests.

Andrew Ferguson, [email protected]
www.thinkbroadband.com
Personal website including useful broadband snippets and maps
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User deleted
(deleted) Mon 24-Aug-15 09:24:13
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Re: Good Sync Rate


[re: deleted] [link to this post] 		 
Ahh, that makes sense, thanks for explaining chaps.
Standard User MHC
(sensei) Tue 25-Aug-15 09:29:08
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Re: Good Sync Rate


[re: MrSaffron] [link to this post] 		 
It does seem a fair way out though - even at worst case.

This morning I am seeing 80768 kbps as the max attainable rate. The line is probably around 440-450m and I know the exact route within a metre or two of where it is underground. It is probably at the very top end of what can be achieved. Next time I have a BT Tech here I will get him to check the length using his TDR.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
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