Speed test 1mb, 2mb or 10mb?

lisauk · 27-04-2006, 17:56

What does this speed mean for an ntl broadband customer?

Is this connection a 1mb, 2mb or 10mb?

Speed test result average 3.14 Mbps

Druchii · 27-04-2006, 17:57

Most Likely 10Mb.

lisauk · 27-04-2006, 18:01

How is the brandwidth done it is what the modem is set to or is it what is sent down the cable line?

tucker61 · 27-04-2006, 18:09

I hae just upgraded to 4 MB. Average speed is coming back at 0.95, Is that correct, Would not know the difference.

lisauk · 27-04-2006, 18:11

I would say that 0.95 is 1MB as it is under 1.

Druchii · 27-04-2006, 18:14

Quote:

Originally Posted by tucker61

I hae just upgraded to 4 MB. Average speed is coming back at 0.95, Is that correct, Would not know the difference.

No, it should be anywhere between 3 and 4Mb. Then agian with congestion on the line it could well be about right. Look at the threads allover this forum, about speed issues etc. You never knwo some of the tips might help

---------- Post added at 18:14 ---------- Previous post was at 18:13 ----------

If you have "just" upgraded then give it some time to take effect.

DocDutch · 27-04-2006, 18:29

best test is either download something from that you know is a fast connection. the 1 I use most of the time is ftp://mirror.ac.uk and download something that is at least 20mb that will give you a rough speed.

lisauk · 27-04-2006, 20:44

Can anyone tell me how the speed is determined by ntl broadband.

For instance if my parents have a broadband connection of 1mb and i have 10 mb can i take my modem and plug it into my mums cable and use my 10mb connection there?

Lisa

agatward · 28-04-2006, 10:38

Quote:

Originally Posted by lisauk

Can anyone tell me how the speed is determined by ntl broadband

This is done using a configuration file that is downloaded to your modem when it boots and syncs with the cable headend. The file you get is based on your modem's MAC address.

I don't think you can just pick up your modem and move it to another location - the configuration for your modem is served by a DHCP and TFTP server pair for your area and the chances are that your relatives wouldn't be off the same server pair. Of course someone will correct me if I'm wrong

Also note that if NTL see the MAC address of your modem move from one cable segment to another, they'll probably become somewhat suspicious and may disable your modem's access to their network. After all, it is against T&C to move your equipment to another house without notifying them.

---------- Post added at 10:38 ---------- Previous post was at 10:15 ----------

Here's the theoretical maximum transfer rates by bandwidth. I have used an value of 5% for packet overhead (average taken from http://sd.wareonearth.com/~phil/net/overhead/) and only shown common connection speeds. I also included gigabit just for fun.

512 kbit = 60.8 kbyte/s
1 Mbit = 121.6 kbyte/s
2 Mbit = 243.2 kbyte/s
3 Mbit = 364.8 kbyte/s
4 Mbit = 486.4 kbyte/s
10 Mbit = 1216 kbyte/s
100 Mbit = 12.16 Mbyte/s
1 Gbit = 121.6 Mbyte/s

As a previous post mentioned, it's worth choosing a large (20 - 50MB) file from a site with good connectivity. It's also recommended not to use HTTP for speed transfer tests as this traffic is transparently intercepted by NTL's routers and redirected to their caches.

Also note that it's best to transfer the file two or three times. Usually during the first read the file will be transferred into the server's filesystem memory cache (assuming a UNIX system) so will be served from RAM rather than disk on the second read. This means you'll get a better idea of your network throughput rather than the server's disk IO capability.

I use ftp://ftp.demon.lkams.kernel.org/pub...2.4.32.tar.bz2 as a test file as it's big and on a well-placed host. Mirror.ac.uk isn't quite so good now since they changed who the contract was awarded to.

On a gigabit attached server (on JANET):

10:34:51 (8.46 MB/s) - `linux-2.4.32.tar.bz2.1' saved [31,132,159]

From this I would assume that the remote site is on a 100Mbit connection so plenty for testing purposes.

Scope · 28-04-2006, 10:43

Quote:

Originally Posted by tucker61

I hae just upgraded to 4 MB. Average speed is coming back at 0.95, Is that correct, Would not know the difference.

I thought 4mb was available from 1st June.. Is it available already?

I will upgrade from 1mb to 2mb (so 4mb) as soon as 4mb is available.

tucker61 · 28-04-2006, 17:12

[quote=agatward]
Here's the theoretical maximum transfer rates by bandwidth. I have used an value of 5% for packet overhead (average taken from http://sd.wareonearth.com/~phil/net/overhead/) and only shown common connection speeds. I also included gigabit just for fun.

512 kbit = 60.8 kbyte/s
1 Mbit = 121.6 kbyte/s
2 Mbit = 243.2 kbyte/s
3 Mbit = 364.8 kbyte/s
4 Mbit = 486.4 kbyte/s
10 Mbit = 1216 kbyte/s
100 Mbit = 12.16 Mbyte/s
1 Gbit = 121.6 Mbyte/s

As a previous post mentioned, it's worth choosing a large (20 - 50MB) file from a site with good connectivity. It's also recommended not to use HTTP for speed transfer tests as this traffic is transparently intercepted by NTL's routers and redirected to their caches.

I just tried the link to the file and my spedd averaged about 120, This to me does not look like 4 mb, even though cust services promissed me it was. Is there a better way to test.

Also used ADSL Guide and that came back at 0.9mbps.

Can anyone advise or is it another call to customer services

28-04-2006, 17:23

NTL are not doing 4MB broadband at present. At least as far as I am aware!

That is coming in june!

tucker61 · 28-04-2006, 17:39

Retentions lied to me. Just called CSC he advised me i am on 2 mb, upgrade should start next week some time.