On Wed, Sep 19, 2012 at 03:08:55PM +0200, Marcin Niskiew wrote: > I also read about IP Tunneling - but it's not mentioned on Centos docs > (it's not supported?)
IP Tunneling is supported and works fine under most circumstances. Today, it requires that clients have functional PMTUD (99.999% of clients will?) or MSS fixup on the real servers. There's a patch that Julian worked on that allows for the lvs box to frag the tunneled packets but I'm not sure what the state of that is. It is covered pretty clearly on http://www.linuxvirtualserver.org/VS-IPTunneling.html And http://www.ultramonkey.org/papers/lvs_tutorial/html/ See this for PMTUD and MSS Fixup, although you are probably better off running the MSS fixup on each of the real servers. (Just limit it to the load balanced traffic, ie, source ip of the virtual server outbound.) http://opsmonkey.blogspot.com/2007/02/path-mtu-discovery-and-mtu.html -- Kelsey Cummings - k...@corp.sonic.net sonic.net, inc. System Architect 2260 Apollo Way 707.522.1000 Santa Rosa, CA 95407 _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users
