Actually I just finished reading http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.arp_problem.html about 5 minutes before your reply and applied the following to my sysctl.conf:
net.ipv4.conf.eth0.arp_ignore = 1 net.ipv4.conf.eth0.arp_announce = 2 net.ipv4.conf.all.arp_ignore = 1 net.ipv4.conf.all.arp_announce = 2 And now it seems to be working again. Thanks for the quick reply Graeme! Graeme Fowler wrote: > On Fri, 2009-08-28 at 08:35 -0400, Jon Gray wrote: > >> We recently moved to a new data center and both of our load balancers >> are now exhibiting some strange behavior. >> > > ...which sounds to me very much like "The ARP Problem". > > One of your realservers is sending out ARP replies for the VIP and ends > up handling all the traffic directly, alone. > > There are many ways to solve this - the best way being to use > appropriate sysctls. This is documented in the HOWTO, and on > linuxvirtualserver.org. > > Graeme > > > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - [email protected] > Send requests to [email protected] > or go to http://lists.graemef.net/mailman/listinfo/lvs-users > -- Thank you for trusting Bluetoad with your publication! Jon Gray System Administrator Bluetoad, Inc. 5323 Millenia Lakes Blvd., Ste. 140 Orlando, Florida 32839 Tel: 407-992-8744 Fax: 321-248-0716 [email protected] <mailto:[email protected]> www.bluetoad.com <http://www.bluetoad.com> _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - [email protected] Send requests to [email protected] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
