2016. 04. 25. 20:27 keltezéssel, Azher Mughal írta: > You can check MTU consistency across the hosts using "ping -Mdo -s > <MTU size>" And if we right, you can change this based on that part of the guide: http://docs.openstack.org/liberty/install-guide-ubuntu/neutron-controller-install-option2.html You can also able to change the MTU with this command: ifconfig ethX mtu 1450 up Dont forget to take care of this warning, if you configure this: "Some cloud images ignore the DHCP MTU option in which case you should configure it using metadata, a script, or other suitable method." Good luck! :) Regards, Peter