Florian Haas, Adam Spiers and myself presented a session in Tokyo about Neutron high availability. We talked about:

• API service HA using haproxy and Pacemaker
• Active/active DHCP HA
• Router high availability
• What the SUSE and Red Hat solutions look like

Slides: http://fghaas.github.io/openstacksummit2015-tokyo-neutron-ha/
Source: https://github.com/fghaas/openstacksummit2015-tokyo-neutron-ha