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HA Interface

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HA Interface

Network > Interfaces > Ethernet

Each high availability (HA) interface has a specific function: one interface is for configuration synchronization and heartbeats, and the other interface is for state synchronization. If active/active high availability is enabled, the firewall can use a third HA interface to forward packets.

Some Palo Alto Networks firewalls include dedicated physical ports for use in HA deployments (one for the control link and one for the data link). For firewalls that do not include dedicated ports, you must specify the data ports that will be used for HA. For additional information on HA, refer to “Device > Virtual Systems”.

To configure an HA interface, click the name of an Interface (ethernet1/1, for example) that is not configured and specify the following information.

HA Interface Settings	Description
Interface Name	The interface name is predefined and you cannot change it.
Comment	Enter an optional description for the interface.
Interface Type	Select HA.
Link Speed	Select the interface speed in Mbps (10, 100, or 1000), or select auto to have the firewall automatically determine the speed.
Link Duplex	Select whether the interface transmission mode is full-duplex (full), half-duplex (half), or negotiated automatically (auto).
Link State	Select whether the interface status is enabled (up), disabled (down), or determined automatically (auto).

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