-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 27/10/14 02:18, Li Tianqing wrote: > Hello, Right now, we test neutron under havana release. We > configured network_device_mtu=1450 in neutron.conf, After create > vm, we found the vm interface's mtu is 1500, the ping, ssh, is ok. > But if we scp large file between vms then scp display 'stalled'. > And iperf is also can not completed. If we configured vm's mtu to > 1450, then iperf, scp all is ok. If we iperf with -M 1300, then the > iperf is ok too. The vms path mtu discovery is set by default. I do > not know why the vm whose mtu is 1500 can not send large file.
There is a neutron spec currently in discussion for Kilo to finally fix MTU issues due to tunneling, that also tries to propagate MTU inside instances: https://review.openstack.org/#/c/105989/ /Ihar -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.22 (Darwin) iQEcBAEBCgAGBQJUThORAAoJEC5aWaUY1u571u4H/3EqEVPL1Q9KgymrudLpAdRh fwNarwPWT8Ed+0x7WIXAr7OFXX1P90cKRAZKTlAEEI94vOrdr0s608ZX8awMuLeu +LB6IA7nMpgJammfDb8zNmYLHuTQGGatXblOinvtm3XXIcNbkNu8840MTV3y/Jdq Mndtz69TrjTrjn7r9REJ4bnRIlL4DGo+gufXPD49+yax1y/woefqwZPU13kO6j6R Q0+MAy13ptg2NwX26OI+Sb801W0kpDXby6WZjfekXqxqv62fY1/lPQ3oqqJBd95K EFe5NuogLV7UGH5vydQJa0eO2jw5lh8qLuHSShGcDEp/N6oQWiDzXYYYoEQdUic= =jRQ/ -----END PGP SIGNATURE----- _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
