Jesse, Thanks for the response.
I am actually not loading the ip_gre module and have created the gre0 interface with ovs-vsctl add-port br0 gre0 -- set interface gre0 type=gre options.... I thought I had seen a note on the list about not using the ip_gre module. Is that not the case, and should I be using that? Then I suppose I could change the mtu for the gre0 interface in the kernel. Jeff On Oct 3, 2012, at 11:59 AM, Jesse Gross <[email protected]> wrote: > On Wed, Oct 3, 2012 at 11:43 AM, Jeff Welsch <[email protected]> wrote: >> Hello, >> >> When forwarding traffic through a GRE tunnel I am receiving error messages >> about over-mtu packets: openvswitch: br0: dropped over-mtu packet: 1810 > >> 1500. The packet size varies and on my Linux console I am receiving >> notification that net_ratelimit is suppressing callbacks of a large amount >> of similar messages. I am using 1.8.90 as a linux module with kernel 3.4.3. >> >> ifconfig br0 mtu 9000 does not have an effect. The mtu on my eth interfaces >> is set to 9000. eth0 doesn't belong to br0. >> >> Is this possibly a bug in that codebase? Is there a version of the 1.8 tree >> that may be more stable if so? I would use 1.7.1 but am interested in the >> no-packet-in feature of 1.8.x. > > I'm guessing that you're using Linux GRE devices, in which case you > have to raise the MTU on that device. _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
