Does Zeroshell limit 3g upload speed ?

[ehawk]

Hi Everyone.
First of all, thanks to all contributors for such a Distribution (Zeroshell).

have been working on ZS for 2 months.
Established site2site VPN and it works great. But I have an important question.
I have done a simple test; such that
If I connect a 3g modem to PC and do a speed test, I observe 1 to 2 Mbits/sec UPLOAD speeds, normal as expected.

PC<---->3gModem ~ 1-2Mbits/sec Upload

But when I use ZS as router, as below
PC<---->ZS<---->3gModem~ 300Kbits/sec Upload
I observer 300Kbits/sec Upload speeds

Please note that I use ZR as router and there is no vpn. So when I use vpn+bonding , all is based on 300Kbits/sec speed.

using http://www.speedtest.net/, or any other speed test site can be used, I have same results

I would really appreciate your replies.
thanks a lot.
Eric

[ehawk]

Hey Guys,
I would appreciate any response 😉

[dpbeaton]

Hi

Instead of using a speedtest site – have you tried transferring files over the link and observing the interface speed on the vpn – it give a more accurate result than the speed test site

[ehawk]

Hi.

dpbeaton, thanks for the reply.
sorry for so late reply. I had been on holiday.

had installed http server on one vpn client. and done the test on the vpn link.
result is same, slow upload speed 🙁

One important point that I missed to express is Zeroshell runs on VIRTUAL MACHINE.
If I use Ubuntu on Virtual machine and use 3g, upload speed is not limited.
I wonder wheather the difference between ZS and Ubuntu kernel, cause such a issue?

I tested VMware, Virtual box with ZS, result is limited upload speed.

I would really appricate your help, I am still searching for a solution.
thanks
ehawk

[ehawk]

Interestingly,
if VirutalMachine is run on desktop PC instead of a laptop where PC’s perfomance is much better (interms of cpu/ram etc..), you can observe better 3G upload speeds.

[ciccillover]

How much better?
I’m having the same problem and can’t solve it. But I can add something that seems relevant to me: no matter what, download speed always reaches 1,5 Mbps and upload always 750 Kbps. Never more that that, and rarely slightly below those thresholds.

Just for the sake of completeness, using Vodafone Italy on a Huawei K3765. The same combo, when connected directly to the same laptop I’m testing ZS on (using VMWare Player), from the same place, will do about 5 Mbps/3 Mbps (download/upload).

[killer1loop]

I’m having the same issue running zeroshell on a VM with vmware. Download speed of 20mbit on a laptop, 3.5 mbit on zeroshell.

Does the USB virtualization limit speed in some ways?

[ciccillover]

No, I did some deep testing, USB virtualization doesn’t seem to be limiting performance/bandwidth in any way.
If you’re not using the latest 2.0 ZS release, try upgrading. The problem seems to be gone for me since I have switched to rev 2.0 (although I need to test it further).
A VMWare virtual machine is not yet available for 2.0, so you’ll have to build it your own (not a difficult task anyway).

[killer1loop]

@ciccillover wrote:

No, I did some deep testing, USB virtualization doesn’t seem to be limiting performance/bandwidth in any way.
If you’re not using the latest 2.0 ZS release, try upgrading. The problem seems to be gone for me since I have switched to rev 2.0 (although I need to test it further).
A VMWare virtual machine is not yet available for 2.0, so you’ll have to build it your own (not a difficult task anyway).

So the problem might be depending to the AT command sent during initialization of the USB stick? Anyone can say how to check the link speed?

[ciccillover]

Check the color of the led on your modem.

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