Connection speeds

[probinson]

Hi,

Although I have problems browesing networked machines I can map drives to machines (when default gateway set to VPN Host, if permissions permit).

I'm wondering what sort of speeds I can expect, the host has a 2mps fixed IP ADSL internet connection, the client has a 1mps cable internet connection.

It takes 20-30 seconds to open a 1.5mb image file (using windows XP) and about 45 seconds to copy a 1 mb file from host C: disk to clients C: disk.

Is this normal or should I expect greater speeds?

Pete

[ImmediateAction]

What upload speeds do you get on each connection?

[probinson]

The upload speeds apear about the same ie 1.14mb file client to host takes about 40seconds.

In fact, when I say host it's actually a participating PC behind the host.

I cannot, at present, test a transfer to the host itsef as the WindowsXP admin share (C$) is not enabled.

[probinson]

I am gettin a good ping responce with -l switch value of 1500 as described in article on MTU test.

Peter

[probinson]

No Responce?

I would have thought the speed of connection was a fundamental issue when considering the benefits of a VPN.

[adrien]

Hi

throughput is in the end limited a lot by transit times. You can have a really high-bandwidth connection, but if it has high latency (delay sending a packet from one end to the other), then that can limit your throughput because packets need to be acknowledged, and the sender waits for acknowledgements before sending more data.

So if you ping one end to another, what sort of ping times do you get?

Adrien

[probinson]

Hi,

3 pings at about 3 seconds intervals returned and average round trip of 47ms, 42ms and 65ms.

Sometimes I get a '25%' loss.

The speeds appear about the same both ways.

Regards

Peter