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Standard User Andrue
(knowledge is power) Wed 18-Sep-13 15:06:40
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Re: upstream vs distance


[re: billford] [link to this post]
 
In reply to a post by billford:
Downstream has wagged about a bit, partly due to interleave being imposed/removed at various times but also for no particular reason that I can identify. Currently sync is just over 70Mbps (the highest it's ever been confused), tbb speedtests average around 66Mbps.
Similar but slightly better than mine. I'm currently getting 66Mb/s because two weeks ago DLM relented. Dunno how long that'll last though. But my downstream is reliably 18.5Mb/s day in day out.

Edit: FWIW I think my attainable upstream is 30Mb/s.

---
Andrue Cope
Brackley, UK

Edited by Andrue (Wed 18-Sep-13 15:10:19)

Standard User billford
(elder) Wed 18-Sep-13 15:08:13
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Re: upstream vs distance


[re: kasg] [link to this post]
 
My syncs are estimated from the BT tester profile, I haven't hacked the modem so the upstream is also lower than yours.

Latest tbb test- it's IPv6 but IPv4 is essentially the same, the very low single-thread value is because I'm using Safari on a Mac.

Not being a gamer I don't take much notice of ping times but my BQMs are in my sig for anyone interested.

Bill
A level playing field is level in both directions.

__________Fold at Home_________________Planes and Boats and ... ______________BQMs: IPv4 IPv6
Standard User R0NSKI
(fountain of knowledge) Wed 18-Sep-13 15:38:31
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Re: upstream vs distance


[re: mikeysoft] [link to this post]
 
Current estimates show adsl as 5.5 to 12, I was getting 11.5 so not bad, and certainly nothing to suggest a bad line.


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Standard User MHC
(sensei) Wed 18-Sep-13 16:03:20
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Re: upstream vs distance


[re: Andrue] [link to this post]
 
ECI modem talking to a Huawei cabinet. ECI gives 1 to 2 Mbps better downstream and similar up.


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

M H C


taurus excreta cerebrum vincit
Standard User Andrue
(knowledge is power) Wed 18-Sep-13 16:43:23
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Re: upstream vs distance


[re: billford] [link to this post]
 
This is what my modem is saying at the moment:

Max: Upstream rate = 26535 Kbps, Downstream rate = 71180 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 72067 Kbps

I see that max is below actual at the modem so I guess that a DSL slap down is coming :-/

---
Andrue Cope
Brackley, UK

Edited by Andrue (Wed 18-Sep-13 16:43:36)

Standard User kasg
(fountain of knowledge) Wed 18-Sep-13 16:44:55
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Re: upstream vs distance


[re: Andrue] [link to this post]
 
In reply to a post by Andrue:
I see that max is below actual at the modem so I guess that a DSL slap down is coming :-/

Possibly, but I have, in the past, had long periods when my attainable was below my actual. I guess your SNR margin is significantly below 6.

Kevin

plusnet Unlimited Fibre - BQM
Using OpenDNS
Domains and web hosting with TSOHOST

Edited by kasg (Wed 18-Sep-13 16:45:42)

Standard User Chrysalis
(legend) Wed 18-Sep-13 16:51:48
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Re: upstream vs distance


[re: Andrue] [link to this post]
 
well its probably because the snrm is below 6db, its only slightly below so unless your snrm is unstable I wouldnt expect your line to drop.

my hg612 always reports an attainable at least 1mbit higher than my sync when I first sync up and the snrm is always at least 6.5db at that point likewise.

the last week or so my attainable has been slowly drifting downwards so I am now at.

Max: Upstream rate = 34053 Kbps, Downstream rate = 71140 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 70911 Kbps

So if I resynced now knowing my line seems to want at least 6.5db and a buffer of 1mbit below the modem attainable I suspect my sync speed would be about 70.1mbit at the max, although its possible bitswapping has disabled some tones so on a new sync those would be available again.

BT Infinity 2 Since Dec 2012 - BQM

Edited by Chrysalis (Wed 18-Sep-13 16:52:53)

Standard User Andrue
(knowledge is power) Wed 18-Sep-13 17:14:06
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Re: upstream vs distance


[re: kasg] [link to this post]
 
In reply to a post by kasg:
In reply to a post by Andrue:
I see that max is below actual at the modem so I guess that a DSL slap down is coming :-/

Possibly, but I have, in the past, had long periods when my attainable was below my actual. I guess your SNR margin is significantly below 6.
Yup. 5.6 at the moment. I wonder if it's worth bouncing the modem to get a safer speed to avoid DLM slapping me?

---
Andrue Cope
Brackley, UK
Standard User kasg
(fountain of knowledge) Wed 18-Sep-13 19:26:25
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Re: upstream vs distance


[re: Andrue] [link to this post]
 
In reply to a post by Andrue:
Yup. 5.6 at the moment. I wonder if it's worth bouncing the modem to get a safer speed to avoid DLM slapping me?

I don't know, rather you than me smile

Kevin

plusnet Unlimited Fibre - BQM
Using OpenDNS
Domains and web hosting with TSOHOST
Standard User Chrysalis
(legend) Wed 18-Sep-13 21:11:42
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Re: upstream vs distance


[re: Andrue] [link to this post]
 
check your errors for last 24 hours and post them here.

that is if you interested in my view as you didnt reply to me.

DLM shouldnt care if you have 6db or 5db but more so if your line is dropping and the error rate.

BT Infinity 2 Since Dec 2012 - BQM

Edited by Chrysalis (Wed 18-Sep-13 21:11:51)

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