maximum performance for 100Mbit/s - how to optimize

hi,

 

we need to optimize performance of openvpn for gigabit connection. We have:

 

server1 gigabit copper ethernet ---- > gigabit eth/optical switch ----> gigabit router ----> output from site1 gigabit optical WAN lines ---> input site2 gigabit optical router ---> gigabit switch to copper ethernet ---> server2 gigabit copper ethernet.

 

Complication is that we are connected to server1 by wireless - there is 155MBit/s licensed radio, capable of ca. 100Mbit effectively, so this is the maximum we can really expect to have "in-house". We just don't want to be limited by performance after this radio link by any means.

 

 Is somebody able to recommend maximum performance settings? We would like to use UDP, because there is no packet loss on this wireless (and of course wired, also) connection and we have the feeling that UDP is faster. Server2 is p4/2.4GHz, server1 is Athlon xp2200+, both 256MB ram, 40gb IDE hdd, debian, intel pro/1000 cards. We need to run whole bunch of applications thru this, you name them - web, ftp, netmeeting, computer based video conferencing, data connection for fileservers, possibly voip in short future... We would like the link to be totally unvisible for every application, ideally there would be no need to mess up with MTU, MSS, etc for clients - let those servers do their part of the job and that's it. Simply every application must work.

 

My rough question is : how to optimize this? We don't rely on encryption between those servers, the radio ciphers by itself on its 'hardware' layer and we don't suspect anyone to sniffer on optical lines. We simply would like to transfer maximum rates from one end to the other. Do those servers need upgrade? What parameters should be used for this kind of application?

 

Thank you!

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