ndt-users list created

[Aris Adamantiadis <>]

Hello,

Currently the NDT server of BELNET is only accessible from our VPN. I
tried to connect to it from home and got this result :
TCP/Web100 Network Diagnostic Tool v5.5.4b-belnet
click START to begin

** Starting test 1 of 1 **
Connected to: ndt.belnet.be  --  Using IPv4 address
Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
checking for firewalls . . . . . . . . . . . . . . . . . . .  Done
running 10s outbound test (client-to-server [C2S]) . . . . . 3.59Mb/s
running 10s inbound test (server-to-client [S2C]) . . . . . . 11.70Mb/s
The slowest link in the end-to-end path is a 10 Mbps Ethernet subnet
Information: Other network traffic is congesting the link

The second test showed similar results. However, here are the sync
information from my modem:
DSL Speed       640 Kbps Upstream
                6144 Kbps Downstream

the detected upstream capacity is 5x the available capacity and
downstream is 2x.
I tried with switch's ndt server:

** Starting test 1 of 1 **
Connecting to 'ndt.switch.ch' [ndt.switch.ch/130.59.31.2] to run test
Connected to: ndt.switch.ch  --  Using IPv4 address
Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
checking for firewalls . . . . . . . . . . . . . . . . . . .  Done
running 10s outbound test (client-to-server [C2S]) . . . . . 3.57Mb/s
running 10s inbound test (server-to-client [S2C]) . . . . . . 4.75Mb/s
Server unable to determine bottleneck link type.
Information: Other network traffic is congesting the link
 [S2C]: Packet queuing detected

Now, this gives good results for downstream but still wrong for
upstream. I finally tried to connect to switch from my desktop which is
not behind the VPN:
running 10s outbound test (client-to-server [C2S]) . . . . . 493.0kb/s
running 10s inbound test (server-to-client [S2C]) . . . . . . 4.80Mb/s

which looks correct.
Have you got any idea why the results are wrong when behind a VPN ? We
are using openvpn, directly installed on my linux laptop.
A colleague of mine had exactly the same kind of strange capacity
results when connecting from home with the VPN.

Will upgrading fix this ?

Thanks,

Aris