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Re: [Openvpn-users] Heavy packet loss with high traffic


  • Subject: Re: [Openvpn-users] Heavy packet loss with high traffic
  • From: James Yonan <jim@xxxxxxxxx>
  • Date: Mon, 20 Dec 2004 09:19:36 -0700 (MST)

On Mon, 20 Dec 2004, sam wun wrote:

> James Yonan wrote:
> 
> >On Mon, 20 Dec 2004, Eric Hokanson wrote:
> >  
> >
> >Keep in mind that a lot of games as well as video streaming use UDP-based 
> >application protocols.
> >
> >Because transmit throttling is not built into UDP, the application must 
> >deal with it by reducing its transmit speed to a level which the link can 
> >support.  Otherwise, if apps transmits UDP data at LAN speeds, a high 
> >percentage of packets will end up being dropped at the local VPN gateway.
> >
> >  
> >
> I dont' know whether this will affect voice quality with VoIP software 
> like Skype communicate over OpenVPN.

UDP-based VoIP should be fine over an OpenVPN UDP tunnel.

However, running UDP-based VoIP over a TCP tunnel might be problematic, 
especially if the network link has higher packet loss rates.

James


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