Shulou(Shulou.com)06/01 Report--

This article is to share with you about the working principle of Neutron Router, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

Today I analyze how router works.

First take a look at what has happened to the network structure of the control node:

There are two more port on br-int:

1. Qr-d295b258-45. It can be inferred that the interface corresponds to the interface of router_100_101 (d295b258-4586) and is the gateway of subnet_172_16_100_0.

2. Qr-2ffdb861-73. From the naming, it can be inferred that the interface corresponds to the interface of router_100_101 (2ffdb861-731c) and is the gateway of subnet_172_16_101_0.

Like the linux bridge implementation, router_100_101 runs in its own namespace.

Qrouter-a81cc110-16f4-4d6c-89d2-8af91cec9714 is the namespace of router, and the two Gateway IP are configured on qr-2ffdb861-73 and qr-d295b258-45 respectively.

The gateways of vlan100 and vlan101 are configured on route_101_101, and the two networks are connected at layer 3.

The above is how Neutron Router works, and the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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