Re: [Openvpn-users] Openvpn slow on asymmetric connections

[Jon Bendtsen <jon.bendtsen@xxxxxxxxxx>]

Den fredag 6.jan kl. 2:31 skrev George Thompson:

> Hi there,
>     Using the other connection (comcast) slowed it down.  Probable  
> becuse my uploaded for it is slower. 1 mbits/s compared to 2mbits/ 
> s  I have with Verizon.  My downloads outside of the tunnel are  
> fast.  I just finished downloading the Slackware 10.2 ISO.  The  
> download average outside the tunnel was around 13.2 mbits/s.   
> Inside the tunnel it is still around 1.7 mbits/s.  I tried the  
> connection at the university again.  Over there I get a little over  
> 10mbits/s though the tunnel, and about the same outside the tunnel.

Did you try with different packet sizes? I would like you to read
the manpage and look at:
--link-mtu n
--tun-mtu n
--tun-mtu-extra n
--mtu-disc type
--mtu-test
--fragment max
--mssfix max
--sndbuf size
--rcvbuf size
--txqueuelen n


Maybe also:
--shaper n
--passtos
--tcp-queue-limit n



If neither of that works, i have no further ideas, other than to let  
James take a look at your problem. I think he reads the mailinglist  
as well. If it is ever solved, i would like to hear the solution.



JonB

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