Why does nova fail creating instance with 'ports exceeded' error ?

Log in to Your Red Hat Account

Your Red Hat account gives you access to your profile, preferences, and services, depending on your status.

If you are a new customer, register now for access to product evaluations and purchasing capabilities.

Need access to an account?

If your company has an existing Red Hat account, your organization administrator can grant you access.

If you have any questions, please contact customer service.

Red Hat Account Number:

Red Hat Account

Customer Portal

For your security, if you’re on a public computer and have finished using your Red Hat services, please be sure to log out.

Log Out

Select Your Language

Issue

Nova fails to create instances after a limited number of instances with the following error.

Error in creating instance: Maximum number of ports exceeded (HTTP 403)

Environment

Red Hat Enterprise Linux OpenStack 4.
Red Hat Enterprise Linux OpenStack 5.
Red Hat Enterprise Linux OpenStack 6.
Red Hat Enterprise Linux OpenStack 7.
Red Hat OpenStack 8.
Red Hat OpenStack 9.

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

New to Red Hat?

Learn more about Red Hat subscriptions

Here are the common uses of Markdown.

Code blocks

~~~
Code surrounded in tildes is easier to read
~~~

Links/URLs

[Red Hat Customer Portal](https://access.redhat.com)

Log in to Your Red Hat Account

Red Hat Account

Customer Portal

Select Your Language

Infrastructure and Management

Cloud Computing

Storage

Runtimes

Integration and Automation

Services

Tools

Red Hat Insights

Red Hat Product Security Center

Security Updates

Resources

Customer Portal Community

Customer Events

Stories