-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 02/06/2015 06:47 PM, Eren Türkay wrote: > Hello, > > I was having serious network issues using GRE and I have been > tracking it for a few weeks. Finally, I solved the issue but it > needs a proper fix. To summarize, I need a way to set MTU settings > of br-int and br-tun interfaces, enable MQ support in libvirt, and > run "ethtool -L eth0 combined N" command in VMs. > > The detailed bug report and the explanation for the issue is here: > https://bugs.launchpad.net/neutron/+bug/1419069 > > There is a blueprint [0] on MQ support but it wasn't accepted. > > What can we do about this performance problem and a possible fix? > Most people complain about GRE/VXLAN performance and the solution > appears to be working. I created a bug report and let the list know > to work on a better, flexible, and working solution. Please ignore > the ugly patches as they are just proof of concept. > > Regards, Eren > > [0] > https://blueprints.launchpad.net/nova/+spec/libvirt-virtio-net-multiqueue > > I guess the MTU part should be fixed in Kilo as part of: https://github.com/openstack/neutron-specs/blob/master/specs/kilo/mtu-selection-and-advertisement.rst
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