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By Palo Alto Networks · Question Mode

QuestionQ18

PAN-OS Networking Configuration

When deploying two Palo Alto Networks firewalls in an active/active high-availability (HA) cluster, what is the dedicated function of the HA3 link?

  • A Control plane synchronization for heartbeats and state information
  • B Packet forwarding for session setup and asymmetric traffic
  • C Management plane synchronization for configurations and policies
  • D Data plane synchronization for session tables and forwarding tables
Explanation

The HA3 link is the dedicated packet-forwarding connection between active/active HA peers. It forwards packets for session setup and for asymmetric traffic handling; it is not the control, configuration, or session-table synchronization link. Palo Alto Networks documents HA3 as the packet-forwarding link for session setup and asymmetric traffic handling.

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