Connecting multiple redundant interfaces to one switch while operating in active-active HA mode

Connecting multiple redundant interfaces to one switch while operating in active-active HA mode

In an active-active cluster, all cluster units send and receive packets. To operate a cluster with redundant interfaces in active-active mode, with multiple redundant interfaces connected to the same switch, you must separate the redundant interfaces of each cluster unit into different redundant interfaces on the connecting switch.

 

General configuration steps

The section includes web-based manager and CLI procedures. These procedures assume that the FortiGate units are running the same FortiOS firmware build and are set to the factory default configuration.

 

General configuration steps

1. Apply licenses to the FortiGate units to become the cluster.

2. Configure the FortiGate units for HA operation.

  • Change each unit’s host name.
  • Configure HA.

2. Connect the cluster to the network.

3. View cluster status.

4. Add basic configuration settings and configure the redundant interfaces.

  • Add a password for the admin administrative account.
  • Add the redundant interfaces.
  • Add a default route.

 

You could also configure redundant interfaces in each FortiGate unit before they form a cluster.

5. Configure HA port monitoring for the redundant interfaces.


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