- http://docs.openstack.org/admin-guide-cloud/content/openvswitch_plugin.html
- 下面这个方法对 F5 管理口没用，F5管理口不支持发起option 26的dhcp消息
- If you use the neutron DHCP agent, add these lines to the
/etc/neutron/dhcp_agent.inifile:
1dnsmasq_config_file=/etc/neutron/dnsmasq/dnsmasq-neutron.confRestart the DHCP service to apply the settings:
1# service neutron-dhcp-agent restart - To lower the MTU size on instances and prevent packet fragmentation over the GRE tunnel, create the
/etc/neutron/dnsmasq/dnsmasq-neutron.conffile and add these values:1dhcp-option-force=26,1400 - Restart the
neutron-serverservice to apply the settings:1# service neutron-server restart
