Hello, We made it exactly in that way on vms :) -- Best regards / Pozdrawiam Sławek Kapłoński slawek at kaplonski.pl On Mon, 18 Apr 2016, Akihiro Motoki wrote: > 2016-04-18 15:58 GMT+09:00 Ihar Hrachyshka <ihrachys at redhat.com>: > > Sławek Kapłoński <slawek at kaplonski.pl> wrote: > > > >> Hello, > >> > >> What MTU have You got configured on VMs? I had issue with performance on > >> vxlan network with standard MTU (1500) but when I configured Jumbo > >> frames on vms and on hosts then it was much better. > > > > > > Right. Note that custom MTU works out of the box only starting from Mitaka. > > You can find details on how to configure Neutron for Jumbo frames in the > > official docs: > > > > http://docs.openstack.org/mitaka/networking-guide/adv-config-mtu.html > > If you want to advertise MTU using DHCP in releases before Mitaka, > you can prepare your custom dnsmasq config file like below and > set it to dhcp-agent dnsmasq_config_file config option. > You also need to set network_device_mtu config parameters appropriately. > > sample dnsmasq config file: > -- > dhcp-option-force=26,8950 > -- > dhcp option 26 specifies MTU. > > Akihiro > > > > > > > > Ihar > > __________________________________________________________________________ > > OpenStack Development Mailing List (not for usage questions) > > Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20160419/245842eb/attachment.pgp>