Hi Eric On Mon, 15 Jan 2018 at 16:54 Eric Garver <e...@erig.me> wrote:
> On Sat, Jan 13, 2018 at 03:57:08PM +0000, James Page wrote: > > Hi Ben s > > > > On Sat, 13 Jan 2018 at 14:55 James Page <james.p...@ubuntu.com> wrote: > > > > > OK, I sent a patch: > > >> https://patchwork.ozlabs.org/patch/860192/ > > > > > > > > > Thanks Ben - I'll pull this patch into the Ubuntu packages and test > this > > > weekend. > > > > > > > I pulled your patch in ontop of our current 2.8.1 packages and > re-tested; > > I'm not seeing a difference in behaviour with the patch in place. I > removed > > the vport_gre and ip_gre kernel modules to force a re-creation of the > > device on restart of OVS as well as trying a reboot of the test machine: > > > > 7: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN mode DEFAULT group > > default qlen 1 > > link/gre 0.0.0.0 brd 0.0.0.0 > > 8: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN > mode > > DEFAULT group default qlen 1000 > > link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff > > 9: gre_sys@NONE: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1472 qdisc > > pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default > qlen > > 1000 > > link/ether 52:ad:6d:89:bb:54 brd ff:ff:ff:ff:ff:ff > > Are there any errors is dmesg? It's possible setlink won't accept > UINT16_MAX. grep for "Invalid MTU". > Not under 4.4 but I do under 4.13: [ 6.794079] gre: GRE over IPv4 demultiplexor driver [ 6.797621] ip_gre: GRE over IPv4 tunneling driver [ 6.798326] gre_sys: Invalid MTU 65535 requested, hw max 1500 Looks like the kernel is limiting to 1500. _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
