Common problems
In this section, we will examine some of the common networking problems that you might face in an OpenStack cluster. We will provide steps to troubleshoot issues, and we will offer potential solutions to resolve the issue. It's worth repeating that there are multiple ways to configure Neutron, so the steps you take to solve the following issues may be slightly different depending on your installation. However, these steps should be useful to point you in the right direction.
When you can't ping an instance
If you have an active instance that you can't ping, there are a few things you want to check out. Working your way through the following steps should help you identify and correct the problem.
Security groups
Neutron uses security ...
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