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This article introduces you how to connect instance to flat_net, the content is very detailed, interested friends can refer to it, I hope it can help you.

We will deploy instance in this network and verify connectivity.

launch new instance "cirros-vm1", select network falt_net.

Cirros-vm1 is assigned IP 172.16.1.103.

Cirros-vm1 is scheduled to the control node, the corresponding tap device is tapc1875c7f-cb, and has been connected to the bridge.

Continue to launch instance cirros-vm2 in the same way and assign IP 172.16.1.104.

Cirros-vm2 is scheduled to the compute node, the corresponding tap device is tapfb3fb197-24, and connected to bridge.

Here are two caveats:

Because there is no hdcp service on the compute node, there is no tap device corresponding to dhcp in brctl show.

The bridge name on the compute node is the same as that on the control node, both brqf153b42f-c3, indicating that they are the same network.

Cirros-vm1 (172.16.1.103) and cirros-vm2 (172.16.1.104) are located on different nodes and connected by flat_net. Perform PING to verify connectivity. ping 172.16.1.104 in the cirros-vm1 console

As expected, ping succeeded.

About how to connect instance to flat_net to share here, I hope the above content can be of some help to everyone, you can learn more knowledge. If you think the article is good, you can share it so that more people can see it.

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