[OpenVPN home] [Date Prev] [Date Index] [Date Next]
[OpenVPN mailing lists] [Thread Prev] [Thread Index] [Thread Next]
Google
 
Web openvpn.net

Re: [Openvpn-users] Tcp tunnel bridging performance ?


  • Subject: Re: [Openvpn-users] Tcp tunnel bridging performance ?
  • From: James Yonan <jim@xxxxxxxxx>
  • Date: Tue, 1 Feb 2005 05:09:02 -0700 (MST)

On Mon, 31 Jan 2005, JP M wrote:

> Hi, list.
> I am happily using openvpn + shorewall on a debian
> 'testing' box. I am using bridging in the old openvpn
> 1.5 way.
> Among other uses I have 2 tunnels to connect wireless
> machines to my Lan. I normally use UDP tunnels.
> Trying to stream data (videolan) over the tunnels, I
> come to the conclusion that udp over udp is not
> reliable enough, while udp streaming over a tcp tunnel
> is the solution.

I'm not sure that running video over TCP makes sense because 
any frame drops/retransmits will kill the real-time experience.

That's why people run video (or VoIP) over UDP -- because you would rather
lose a few frames and preserve the real-time experience.

> Unfortunately, I observe a massive performance hit
> (throughput at least divided by 4) with the tcp
> tunnels. I tweaked the usual mssfix, but it did not
> seem to help much -or not long ??. 

mssfix doesn't really do anything when the tunnel itself is using TCP as a 
carrier.

James


____________________________________________
Openvpn-users mailing list
Openvpn-users@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/openvpn-users


Warning: require_once(../../../archive_common.php) [function.require-once]: failed to open stream: No such file or directory in /home/openvpn/domains/openvpn.net/public_html/archive/openvpn-users/2005-02/msg00003.html on line 203

Fatal error: require_once() [function.require]: Failed opening required '../../../archive_common.php' (include_path='/usr/local/lib/php') in /home/openvpn/domains/openvpn.net/public_html/archive/openvpn-users/2005-02/msg00003.html on line 203