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 Compute

If you use Networking, do not run the Compute nova-network service (like you do in traditional Compute deployments). Instead, Compute delegates most network-related decisions to Networking. Compute proxies tenant-facing API calls to manage security groups and floating IPs to Networking APIs. However, operator-facing tools such as nova-manage, are not proxied and should not be used.

[Warning]Warning

When you configure networking, you must use this guide. Do not rely on Compute networking documentation or past experience with Compute. If a nova command or configuration option related to networking is not mentioned in this guide, the command is probably not supported for use with Networking. In particular, you cannot use CLI tools like nova-manage and nova to manage networks or IP addressing, including both fixed and floating IPs, with Networking.

[Note]Note

Uninstall nova-network and reboot any physical nodes that have been running nova-network before using them to run Networking. Inadvertently running the nova-network process while using Networking can cause problems, as can stale iptables rules pushed down by previously running nova-network.

To ensure that Compute works properly with Networking (rather than the legacy nova-network mechanism), you must adjust settings in the nova.conf configuration file.

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