New arrival - line stats

Endgame · Nov 01, 2007, 15:17:10

Thanks for the replys gang. I've just done a speed test and they were a little lower than what i expected, do i have to go through a 10 day training period again or should it be ok?

Rik · Nov 01, 2007, 15:18:34

You shouldn't re-train on a like for like transfer. Can you post your line stats and the results of a BT speed test?

Endgame · Nov 01, 2007, 15:20:23

Cheers Rik, will do...............update shortly

Endgame · Nov 01, 2007, 15:24:12

Here's the results:

Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 7150 kbps
DSL connection rate: 448 kbps(UP-STREAM) 8128 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 2699 kbps

If you wish to discuss these results please contact your ISP.

If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.

Your test has completed please close this window to exit the performance tester.

Rik · Nov 01, 2007, 15:25:48

Your profile is OK. Is your exchange congested?

http://usertools.plus.net/exchanges/

If not, check your MTU/RWIN settings, but I don't think they'd impact that much. Maybe a call to support would be a good idea.

Endgame · Nov 01, 2007, 15:31:46

Hi Rik thanks for the link, haven't seen that before.

The exchange looks fine, i'll call support

cheers

Rik · Nov 01, 2007, 15:33:08

Let us know how you get on.

Endgame · Nov 01, 2007, 16:38:54

Just spoke to the very nice people at IDNet and they said something as strange as they don't have an IPprofile for me

Anyway he said leave it as is over the weekend and if it's still the same he will get onto BT

Rik · Nov 01, 2007, 17:05:24

That's about what I'd expect, tbh, the systems will not have updated yet.

Conrad1 · Nov 01, 2007, 22:54:30

I think I'm in a similar situation. My BT stats all look good (i.e. 8124, 7150 profile and such), but my current throughput is a little low... Hopefully it will sort itself out once I am settled in. I haven't dropped connection in about 24hours now so things seem to be going okay! I've had a solid 8.1 sync since my line activated!

- I'm just waiting for my new router to arrive (thanks for the DSL Depot link again Rik! Karma to thee!) so I don't have to leave my machine running 24hrs.

Rik · Nov 02, 2007, 00:53:24

Thanks, Conrad. It's not essential to keep the connection running 24/7, the only thing to avoid is lots of disconnections, especially 10 or more in an hour. However, if you start up the modem in the morning and turn off your machine when you have finished for the day, it will not impact on your training period.

Endgame · Nov 05, 2007, 08:52:01

Well i've been monitoring my speed over the weekend and it's still the same, i have just had a look at my router stats and found this:

Link Information

Uptime:   6 days, 16:15:02
Modulation:   G.992.1 Annex A
Bandwidth (Up/Down) [kbps/kbps]:   448 / 8,128
Data Transferred (Sent/Received) [GB/GB]:   3.19 / 11.62
Output Power (Up/Down) [dBm]:   11.5 / 19.5
Line Attenuation (Up/Down) [dB]:   9.0 / 17.0
SN Margin (Up/Down) [dB]:   23.0 / 14.5
Vendor ID (Local/Remote):   TMMB / TSTC
Loss of Framing (Local/Remote):   0 / 0
Loss of Signal (Local/Remote):   0 / 0
Loss of Power (Local/Remote):   0 / 0
Loss of Link (Remote):   0
Error Seconds (Local/Remote):   129 / 0
FEC Errors (Up/Down):   0 / 0
CRC Errors (Up/Down):   262 / 153
HEC Errors (Up/Down):   104 / 134

I have no idea what it all means but i notice the CRC/HEC Errors at the bottom there, is that bad?

Endgame · Nov 05, 2007, 09:37:01

Also i have noticed that some pages takes ages to load where others load straight away, would this have anything to do with the errors?

Rik · Nov 05, 2007, 10:44:41

You've had a few hundred errors in 160 hours, there's no problem there. You have a full-speed sync with room to spare, hence the higher noise margin. There doesn't appear to be anything wrong with your line.

Have you checked the throughput again with a BT speed test? What values are you using for MTU & RWIN?

Endgame · Nov 05, 2007, 12:41:47

Hi Rik, thanks. I've just done another BT speedtest and it was an improvement of my last one:

Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 7150 kbps
DSL connection rate: 448 kbps(UP-STREAM) 8128 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 5056 kbps

If you wish to discuss these results please contact your ISP.

If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.

Your test has completed please close this window to exit the performance tester.

But when i check on speedtest.net it says my speed is 2500kbps, i have heard that speedtest.net isn't that reliable but that does seem to be the speed i am getting as it just seems a little slow?

Rik · Nov 05, 2007, 12:44:20

TBH, most speedtesters are not that reliable, they all use a cheat to establish speed, ie it's simulated. Find a reliable website and do a large download, a few tens of MBs. See what the measurement is there.

Given your line stats and profile, though, I'd be inclined to look at MTU & RWIN settings as being a potential cause of the problem.

Endgame · Nov 05, 2007, 13:19:05

Hi Rik, i tried looking for the MTU settings in my router and couldn't find them

I don't know what RWIN settings are as i've never heard of them?

Its a Speedtouch 585v6 and i have looked everywhere but can't find anything to do with MTU or RWIN.

Rik · Nov 05, 2007, 13:26:13

RWIN is purely an OS setting, MTU is set in both the OS and the router. If the router is using a smaller value than the OS, then all packets are fragmented and the system slows down. I don't know the Speedtouch - anyone able to give advice on where the MTU is set?

Meantime, take a look at this sticky for step-by-step instructions on setting the OS.

Endgame · Nov 05, 2007, 13:42:19

Wow, just had a read through that helpful post nice one

Unfortuantely i have a tendency to break things that i don't know anything about so i'm probably best leaving well alone!

Rik · Nov 05, 2007, 13:46:00

I've just been reading the main and CLI manuals for the 585, and I can't find a reference to the MTU setting, so it may be that it's fixed at 1500.

It's worth getting a copy of TCP Optimizer on your machine and just seeing what the current values are. (Make a note of them and you can always revert.) TCP Optimizer will find a value for your ideal MTU, from there, setting RWIN and, if necessary, scaling, is a doddle.

Endgame · Nov 05, 2007, 13:55:51

Hi Rik, i've just downloaded Optimizer and i ran it and it says my connection speed is 3000kbps, the MTU window is blank as is the TCP recieve window

Rik · Nov 05, 2007, 14:02:59

Have you got the right network adapter selected?

[attachment deleted by admin]

Endgame · Nov 05, 2007, 14:10:51

Yes it has automatically selected the right adapter

Rik · Nov 05, 2007, 14:15:23

I'm puzzled now (not an unusual state

). What happens if you hit optimal settings or current settings?

Which version of Windows are you using?

Endgame · Nov 05, 2007, 14:40:29

I'm constantly puzzled when it comes to computers!

I'm running XP. If i hit optimal settings my MTU goes to 1500, my TCP Recieve window goes to 256960, my TTL box goes to 64 and my TCP 1323 Options has the Windows scaling box checked.

If i then click on current settings it goes back to how they all were