18-05-2006, 16:55
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#31
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Inactive
Join Date: Jul 2005
Location: Bridgend, UK
Age: 55
Services: FreeSat, BT Infinity
Posts: 116
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Re: 10mb bb more like 6mb!
Did you investigaet MTU and RWIN settings? Tweaking these raised my speed test results from 5 to 9Mb...
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18-05-2006, 17:55
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#32
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Inactive
Join Date: Oct 2005
Posts: 9
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Re: 10mb bb more like 6mb!
I used a number of tweak utilities but didn't alter the MTU or RWin manually, I have to admit that I'm loathe to upgrade back to the 10mb service and the extra cost just to try manual alteration of the settings.
Having seen no difference on my Fedora Core box I'm not altogether convinced it would be the settings anyhow. From the number of comments about the Leicester area on the forums, I have assumed that ntl just provide an inferior service to customers in this location.
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18-05-2006, 19:16
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#33
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Inactive
Join Date: Jul 2005
Location: Bridgend, UK
Age: 55
Services: FreeSat, BT Infinity
Posts: 116
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Re: 10mb bb more like 6mb!
Quote:
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Originally Posted by moon_t
I used a number of tweak utilities but didn't alter the MTU or RWin manually, I have to admit that I'm loathe to upgrade back to the 10mb service and the extra cost just to try manual alteration of the settings.
Having seen no difference on my Fedora Core box I'm not altogether convinced it would be the settings anyhow. From the number of comments about the Leicester area on the forums, I have assumed that ntl just provide an inferior service to customers in this location.
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XP gave me 5.5 Mbps on the speedtest. Linux (Slackware 10.2) gave me 9.8 Mbps...
After I went to http://www.dslreports.com/tweaks to check my settings, I used DrTCP to change the RWIN & MTU (1500 for ntl) under XP - the speed tests match.
I use Linux anyway as it's performance friendly on my laptop - and KDE besta XP hands dwon.
CHANGE YOUR SETTINGS!
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18-05-2006, 21:13
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#34
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Inactive
Join Date: May 2006
Location: Leicestershire
Services: talk ultd 24, 20mb bb, family pack + sky sports & Movies, samsung & v+ boxes
Posts: 25
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Re: 10mb bb more like 6mb!
Quote:
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Originally Posted by moon_t
I used a number of tweak utilities but didn't alter the MTU or RWin manually, I have to admit that I'm loathe to upgrade back to the 10mb service and the extra cost just to try manual alteration of the settings.
Having seen no difference on my Fedora Core box I'm not altogether convinced it would be the settings anyhow. From the number of comments about the Leicester area on the forums, I have assumed that ntl just provide an inferior service to customers in this location.
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Just did a test as i'm in the leicester area:
Thu, 18 May 2006 21:09:17 UTC
1st 512K took 437 ms = 1171.6 KB/sec, approx 9654 Kbps, 9.43 Mbps
2nd 512K took 438 ms = 1169 KB/sec, approx 9633 Kbps, 9.41 Mbps
3rd 512K took 437 ms = 1171.6 KB/sec, approx 9654 Kbps, 9.43 Mbps
4th 512K took 766 ms = 668.4 KB/sec, approx 5508 Kbps, 5.38 Mbps
Overall Average Speed = approx 8612 Kbps, 8.41 Mbps
2'nd attempt:
Thu, 18 May 2006 21:10:47 UTC
1st 512K took 453 ms = 1130.2 KB/sec, approx 9313 Kbps, 9.09 Mbps
2nd 512K took 422 ms = 1213.3 KB/sec, approx 9998 Kbps, 9.76 Mbps
3rd 512K took 437 ms = 1171.6 KB/sec, approx 9654 Kbps, 9.43 Mbps
4th 512K took 438 ms = 1169 KB/sec, approx 9633 Kbps, 9.41 Mbps
Overall Average Speed = approx 9650 Kbps, 9.42 Mbps
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18-05-2006, 22:15
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#35
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cf.mega poster
Join Date: Sep 2003
Posts: 12,048
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Re: 10mb bb more like 6mb!
I notice you are leicestershire rather then leicester, which part of leicester you in?
I agree with the other poster that judging from the posts I have seen on here and another forum well over 80% of leics posters are complaining of poor speeds which seems high compared to other areas.
My ubr has just had a reseg but things havent improved to the extenct that my performance matches different areas.
Thu, 18 May 2006 22:14:00 UTC
1st 512K took 751 ms = 681.8 KB/sec, approx 5618 Kbps, 5.49 Mbps
2nd 512K took 711 ms = 720.1 KB/sec, approx 5934 Kbps, 5.79 Mbps
3rd 512K took 571 ms = 896.7 KB/sec, approx 7389 Kbps, 7.22 Mbps
4th 512K took 811 ms = 631.3 KB/sec, approx 5202 Kbps, 5.08 Mbps
Overall Average Speed = approx 6036 Kbps, 5.9 Mbps
my conclusion is that the routing over ntl's network for the leics area is unoptimal and perhaps using poorer peering links then other areas. Some sites show this eg. newshosting and gigenews providers allow reverse traceroutes and the routes to ntl are different depending on what area you in and go in over different peers/transit so I can see this is probably true for much of the internet.
Also I have been told by more then one person that some parts of leics network that are analogue based have been done badly in the days they were installed so this probably affects it and some parts are so bad thats why they cant have broadband. I dont know if this has any bearing on speeds but it would be something to consider.
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18-05-2006, 22:26
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#36
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Permanently Banned
Join Date: Apr 2006
Posts: 562
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Re: 10mb bb more like 6mb!
moon_t the ntl 100 can't get anywhere near 10Mbit so yeah your modem was certainly the problem.
The general concensus from here appears to be that the Indian call centre, and that's all it is a call centre doesn't deserve to be dignified with the title of technical support centre, is useless.
About the only service it appears to provide most of the time is to get customers off the phone, which of course makes ntl ecstatic as we all know they do not and have never cared about customer service beyond paying it lip service in lame internal and external propaganda.
---------- Post added at 23:26 ---------- Previous post was at 23:19 ----------
Quote:
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Originally Posted by Chrysalis
my conclusion is that the routing over ntl's network for the leics area is unoptimal and perhaps using poorer peering links then other areas. Some sites show this eg. newshosting and gigenews providers allow reverse traceroutes and the routes to ntl are different depending on what area you in and go in over different peers/transit so I can see this is probably true for much of the internet.
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That doesn't explain why a speed test inside the ntl network wouldn't score very highly.
Quote:
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Also I have been told by more then one person that some parts of leics network that are analogue based have been done badly in the days they were installed so this probably affects it and some parts are so bad thats why they cant have broadband. I dont know if this has any bearing on speeds but it would be something to consider.
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No every network everywhere is analogue based, there is no digital component to the bare bones physical layer, even the lasers powering the fibre optics are analogue modulated. Digital signals carried are infact digital running over analogue transport.
Leicester does have its' own unique issues though. Student population and the original network build being two of them, but to blame peering for an internal network speedtest being slow is clearly not appropriate.
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18-05-2006, 22:26
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#37
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Inactive
Join Date: Oct 2005
Posts: 9
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Re: 10mb bb more like 6mb!
Well I decided to give the tweaks shown here and on other sites a go.
So upgraded online back to 10mb, spent 3 hours tweaking settings to
recommended or identified by tweaking programs as being optimal,
and here is what I got 
1st 512K took 1000 ms = 512 KB/sec, approx 4219 Kbps, 4.12 Mbps
2nd 512K took 1000 ms = 512 KB/sec, approx 4219 Kbps, 4.12 Mbps
3rd 512K took 1000 ms = 512 KB/sec, approx 4219 Kbps, 4.12 Mbps
4th 512K took 1016 ms = 503.9 KB/sec, approx 4152 Kbps, 4.05 Mbps
Overall Average Speed = approx 4202 Kbps, 4.1 Mbps
Thu, 18 May 2006 22:22:56 GMT
1st 512K took 953 ms = 537.3 KB/sec, approx 4427 Kbps, 4.32 Mbps
2nd 512K took 984 ms = 520.3 KB/sec, approx 4287 Kbps, 4.19 Mbps
3rd 512K took 1016 ms = 503.9 KB/sec, approx 4152 Kbps, 4.05 Mbps
4th 512K took 1015 ms = 504.4 KB/sec, approx 4156 Kbps, 4.06 Mbps
Overall Average Speed = approx 4256 Kbps, 4.16 Mbps
Unfortunately I'm now stuck with the 10mb for 30 days before I can
downgrade again, at least I have plenty of time to try tweaking 
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18-05-2006, 22:27
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#38
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Permanently Banned
Join Date: Apr 2006
Posts: 562
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Re: 10mb bb more like 6mb!
Think 4Mbit has got to be the way to go for you sir
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18-05-2006, 22:41
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#39
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Inactive
Join Date: Oct 2005
Posts: 9
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Re: 10mb bb more like 6mb!
Quote:
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Originally Posted by user2006
Just did a test as i'm in the leicester area:
Thu, 18 May 2006 21:09:17 UTC
1st 512K took 437 ms = 1171.6 KB/sec, approx 9654 Kbps, 9.43 Mbps
2nd 512K took 438 ms = 1169 KB/sec, approx 9633 Kbps, 9.41 Mbps
3rd 512K took 437 ms = 1171.6 KB/sec, approx 9654 Kbps, 9.43 Mbps
4th 512K took 766 ms = 668.4 KB/sec, approx 5508 Kbps, 5.38 Mbps
Overall Average Speed = approx 8612 Kbps, 8.41 Mbps
2'nd attempt:
Thu, 18 May 2006 21:10:47 UTC
1st 512K took 453 ms = 1130.2 KB/sec, approx 9313 Kbps, 9.09 Mbps
2nd 512K took 422 ms = 1213.3 KB/sec, approx 9998 Kbps, 9.76 Mbps
3rd 512K took 437 ms = 1171.6 KB/sec, approx 9654 Kbps, 9.43 Mbps
4th 512K took 438 ms = 1169 KB/sec, approx 9633 Kbps, 9.41 Mbps
Overall Average Speed = approx 9650 Kbps, 9.42 Mbps
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My brother lives in the county and has no problems with his connection, I am in central Leicester in a high density residential area, wherein lies the problem I believe. At least 4meg will be consistent, so I suppose it was worth the tenner to find out if it was my settings.
Of course thats in addition to my modem being crap and old  .
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18-05-2006, 23:17
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#40
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Inactive
Join Date: Jun 2003
Location: Manchester
Posts: 5,638
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Re: 10mb bb more like 6mb!
mine is the 10meg tier but most often comes out at 6-7meg despite the occasional 9.5meg result.
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19-05-2006, 21:45
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#41
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cf.mega poster
Join Date: Sep 2003
Posts: 12,048
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Re: 10mb bb more like 6mb!
Quote:
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Originally Posted by James Henry
That doesn't explain why a speed test inside the ntl network wouldn't score very highly.
No every network everywhere is analogue based, there is no digital component to the bare bones physical layer, even the lasers powering the fibre optics are analogue modulated. Digital signals carried are infact digital running over analogue transport.
Leicester does have its' own unique issues though. Student population and the original network build being two of them, but to blame peering for an internal network speedtest being slow is clearly not appropriate.
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To be honest I generally get low on that test anyway, and I still have to traverse ntl's network to ntlworld.com eg. if I do a test of my alternative speedtest site I can often beat ntlworld.com which suggest their is an issue with ntls core network between me and the site or a proxy problem.
Also although that test was not max speed it was still higher then I currently get from telia which also indicates their is some kind of saturation between me and telia also obviously it just isnt telia with problems which is where my peering comments were aimed at not the ntl speedtest.
Fri, 19 May 2006 21:35:09 UTC
1st 512K took 611 ms = 838 KB/sec, approx 6905 Kbps, 6.74 Mbps
2nd 512K took 681 ms = 751.8 KB/sec, approx 6195 Kbps, 6.05 Mbps
3rd 512K took 721 ms = 710.1 KB/sec, approx 5851 Kbps, 5.71 Mbps
4th 512K took 1262 ms = 405.7 KB/sec, approx 3343 Kbps, 3.26 Mbps
Overall Average Speed = approx 5574 Kbps, 5.44 Mbps
^^ ntlworld.com
Fri, 19 May 2006 21:35:55 UTC
1st 512K took 441 ms = 1161 KB/sec, approx 9567 Kbps, 9.34 Mbps
2nd 512K took 420 ms = 1219 KB/sec, approx 10045 Kbps, 9.81 Mbps
3rd 512K took 561 ms = 912.7 KB/sec, approx 7521 Kbps, 7.34 Mbps
4th 512K took 431 ms = 1187.9 KB/sec, approx 9788 Kbps, 9.56 Mbps
Overall Average Speed = approx 9230 Kbps, 9.01 Mbps
^^ http://www.chrysalisnet.org/ntl/hfspeedtest2.html
the reseg has done a world of good here actually finally
---------- Post added at 22:45 ---------- Previous post was at 22:34 ----------
1 7 ms 15 ms 10 ms 10.227.112.1
2 34 ms 14 ms 15 ms leic-t2cam1-a-ge914.inet.ntl.com [82.3.35.149]
3 12 ms 12 ms 11 ms leic-t2core-a-ge-210-0.inet.ntl.com [82.3.33.6]
4 21 ms 14 ms 11 ms lee-bb-a-so-220-0.inet.ntl.com [62.253.188.110]
5 34 ms 18 ms 24 ms pop-bb-b-so-100-0.inet.ntl.com [62.253.185.238]
6 23 ms 25 ms 33 ms gfd-bb-a-so-500-0.inet.ntl.com [213.105.172.137]
7 71 ms 16 ms 19 ms gfd-bb-b-ae0-0.inet.ntl.com [213.105.172.6]
8 16 ms 72 ms 39 ms redb-ic-1-as0-0.inet.ntl.com [213.105.174.138]
9 23 ms 16 ms 23 ms alice-rose.ukcore.as33970.net [195.66.226.247]
10 * * * Request timed out.
route to alternative speedtest hosted by me
1 38 ms 10 ms 27 ms 10.227.112.1
2 13 ms 10 ms 12 ms leic-t2cam1-a-ge914.inet.ntl.com [82.3.35.149]
3 13 ms 11 ms 16 ms leic-t2core-a-ge-220-0.inet.ntl.com [82.3.33.10]
4 29 ms 16 ms 37 ms lee-bb-a-so-220-0.inet.ntl.com [62.253.188.110]
5 25 ms 21 ms 18 ms pop-bb-b-so-100-0.inet.ntl.com [62.253.185.238]
6 25 ms 17 ms 14 ms pop-bb-a-ge-000-0.inet.ntl.com [213.105.174.229]
7 17 ms 21 ms 27 ms win-bb-b-so-500-0.inet.ntl.com [62.253.185.202]
8 28 ms 23 ms 17 ms win-dc-b-v902.inet.ntl.com [62.253.187.226]
9 21 ms 15 ms 24 ms homepage02-win.server.ntlworld.com [62.253.162.12]
route to ntl speedtest which is different from hop3 onwards, as the test data is over the proxies obviously the actual route could be different.
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19-05-2006, 22:27
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#42
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Inactive
Join Date: Jun 2003
Posts: 513
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Re: 10mb bb more like 6mb!
No real difference from here (still got the Terayon in the way)
Code:
Fri, 19 May 2006 22:23:35 GMT
1st 512K took 500 ms = 1024 KB/sec, approx 8438 Kbps, 8.24 Mbps
2nd 512K took 500 ms = 1024 KB/sec, approx 8438 Kbps, 8.24 Mbps
3rd 512K took 500 ms = 1024 KB/sec, approx 8438 Kbps, 8.24 Mbps
4th 512K took 547 ms = 936 KB/sec, approx 7713 Kbps, 7.53 Mbps
Overall Average Speed = approx 8257 Kbps, 8.06 Mbps
Bandwidth for test provided by hostingfreak.
To repeat this test from the source server click here.
nthellworld.co.uk test
Code:
Fri, 19 May 2006 22:24:53 GMT
1st 512K took 500 ms = 1024 KB/sec, approx 8438 Kbps, 8.24 Mbps
2nd 512K took 500 ms = 1024 KB/sec, approx 8438 Kbps, 8.24 Mbps
3rd 512K took 500 ms = 1024 KB/sec, approx 8438 Kbps, 8.24 Mbps
4th 512K took 563 ms = 909.4 KB/sec, approx 7493 Kbps, 7.32 Mbps
Overall Average Speed = approx 8202 Kbps, 8.01 Mbps
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19-05-2006, 22:42
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#43
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cf.mega poster
Join Date: Sep 2003
Posts: 12,048
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Re: 10mb bb more like 6mb!
unusual on both tests your first 3 values bang on same number.
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20-05-2006, 00:05
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#44
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Inactive
Join Date: Jun 2003
Location: Manchester
Posts: 5,638
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Re: 10mb bb more like 6mb!
Quote:
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Originally Posted by Chrysalis
unusual on both tests your first 3 values bang on same number.
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"it's not unusual...."
Sat, 20 May 2006 00:05:23 UTC
1st 512K took 561 ms = 912.7 KB/sec, approx 7521 Kbps, 7.34 Mbps
2nd 512K took 561 ms = 912.7 KB/sec, approx 7521 Kbps, 7.34 Mbps
3rd 512K took 561 ms = 912.7 KB/sec, approx 7521 Kbps, 7.34 Mbps
4th 512K took 941 ms = 544.1 KB/sec, approx 4483 Kbps, 4.38 Mbps
Overall Average Speed = approx 6762 Kbps, 6.6 Mbps
Sat, 20 May 2006 00:06:21 UTC
1st 512K took 561 ms = 912.7 KB/sec, approx 7521 Kbps, 7.34 Mbps
2nd 512K took 561 ms = 912.7 KB/sec, approx 7521 Kbps, 7.34 Mbps
3rd 512K took 561 ms = 912.7 KB/sec, approx 7521 Kbps, 7.34 Mbps
4th 512K took 561 ms = 912.7 KB/sec, approx 7521 Kbps, 7.34 Mbps
Overall Average Speed = approx 7521 Kbps, 7.34 Mbps
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21-05-2006, 01:42
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#45
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cf.mega poster
Join Date: Sep 2003
Posts: 12,048
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Re: 10mb bb more like 6mb!
it is unusual, something not right there.
Their has to be some type of variation, even if you throttled it to 100kbit you would get 4 different set of results probably around 90-95kbit.
What browser are you using for the speedtest?
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