A properly running Neutron service will launch several Linux processes. When troubleshooting, you will want to make sure that all services are configured correctly and are running actively. If you run pgrep –l neutron, you should see a list of Neutron services, as shown in the following screenshot:
Depending on how you have deployed Neutron, the services listed in the preceding screenshot may be spread across multiple servers. For example, your neutron-server processes may be running on your controller node, all of the agents may be on your Network node, and your Compute nodes may also be running some of the agents.
To confirm that all the agents are running as expected, you can execute the neutron agent-list command. The output of this will look similar to what is shown in the following screenshot:
When the agent is up and running, the alive column will have :-), and when the agent is not alive, the value will be xxx. If an agent is not alive and you are expecting...