Openstack explanation (XX) -- neutron node principle

Today I will continue to introduce Linux Operation and maintenance related knowledge , The main content of this paper is openstack Neutron Node principle .

One 、Neutron brief introduction

Neutron yes Openstack Network components of ,Neutron The predecessor was Quantum,Quantom The predecessor was Nova-Network, Through the evolution of multiple versions ,Neutron Now it is openstack One of the most important components of .openstack The evolution of network components is shown in the following figure ：

stay openstack In the network , The concept of computer network has changed slightly . In the actual computer network , The network is connected to hosts , And in the openstack in , The network is connected to virtual machines .

Two 、Neutron Architecture introduction

Neutron The architecture of is shown in the figure below ：

3、 ... and 、Neutron Architecture configuration

Neutron It can be configured into two architectures .
The first is to deploy with the simplest possible architecture , Only instances connected to public networks are supported , No private network 、 Routers and virtual IP Address . And only admin Or other privileged users can manage the public network .
The second one adds three layers of network services to the first one , Support instance connection to private network ,demo Or other non privileged users can manage their own private network , Including routers connecting public and private networks . Floating is also supported IP Address .
Originality is not easy. , Reprint please explain the source ：https://blog.csdn.net/weixin_40228200