系列一
https://blogs.oracle.com/ronen/entry/diving_into_openstack_network_architecture
https://blogs.oracle.com/ronen/entry/diving_into_openstack_network_architecture1
https://blogs.oracle.com/ronen/entry/diving_into_openstack_network_architecture2
https://blogs.oracle.com/ronen/entry/diving_into_openstack_network_architecture3
系列二
Neutron Networking: The Building Blocks of an OpenStack Cloud
Neutron Networking: Simple Flat Network
Neutron Networking: VLAN Provider Networks
Neutron Networking: Neutron Routers and the L3 Agent
系列三国内的，内容比较老，但是还是很有学习意义
http://lynnkong.iteye.com/blog/1699876
http://lynnkong.iteye.com/blog/1699883
