Greetings,
I am currently running 3.16.0-4-amd64 No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 8.1 (jessie) Release: 8.1 Codename: jessie ovs-vsctl (Open vSwitch) 2.3.1 Compiled Jun 15 2015 19:30:36 DB Schema 7.6.2 libvirtd (libvirt) 1.2.9 and I am seeing an MTU issue where packets coming in from the physical side are vanilla 1500Bytes Once it gets to the virtual NIC I see the following in dmesg: [ 6754.472356] openvswitch: vnet5: dropped over-mtu packet: 1502 > 1500 [ 6754.472363] openvswitch: inter-1tom: dropped over-mtu packet: 1502 > 1500 If I set BOTH the vnet5 vnic to mtu 1502 AND the guest OS MTU to 1502 things will flow Otherwise mant protocols with full sized packets will see timeout. Wireshark loaded on the client didn't help, as a trace done on the client itself sees the IP packets coming in (AFTER adjusting MTU to 1502) as 1500. I think OVS must be doing something that added a tag to the packets. Anyone with the same observation? Cheers,
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