Manual Chapter : How many interfaces are required for a BIG-IQ deployment

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BIG-IQ Centralized Management

  • 8.0.0
Manual Chapter

How many interfaces are required for a BIG-IQ deployment

In BIG-IQ v8.0 can operate in a single network card configuration. Previous versions required that you have at least two, although only one had to be configured. Consider the following best practice recommendations for field use.
For lab or proof of concept demonstrations, BIG-IQ can be configured to use only one interface. In this configuration all data flows through the
interface. Also referred to as eth0, or OOB, this 10Mb interface can only handle so much.
For production use, F5 recommends a minimum of two interfaces. In this configuration only BIG-IQ management functions use the OOB interface. The rest of the data uses one of the
interfaces. Because the eth1, eth2, and eth3 interfaces are 100 times faster (10 Gb vs. 100 Mb), they are obviously much better at handling the data requirements of a production environment.
For better isolation, security, and performance F5 recommends adding additional in-band interfaces. The number of additional interfaces needed for optimal performance depends on your business needs.
A good understanding of the data flow requirements between each component in your BIG-IQ solution helps a lot when you consider how many interfaces and network subnets best suit your network environment. For a discussion of this data flow, refer to
How does data flow in a BIG-IQ solution