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Palo_Alto_Networks

PCNSE · Question #248

In High Availability, which information is transferred via the HA data link?

The correct answer is A. session information. In Palo Alto Networks HA, there are two links with distinct roles. The HA1 (control link) carries heartbeats, HA state information, routing updates, and User-ID mappings. The HA2 (data link) is dedicated to synchronizing session tables - it transfers active session information be

Submitted by ricky.ec· Apr 18, 2026Core Concepts

Question

In High Availability, which information is transferred via the HA data link?

Exhibit

PCNSE question #248 exhibit

Options

  • Asession information
  • Bheartbeats
  • CHA state information
  • DUser-ID information

How the community answered

(26 responses)
  • A
    92% (24)
  • B
    4% (1)
  • D
    4% (1)

Explanation

In Palo Alto Networks HA, there are two links with distinct roles. The HA1 (control link) carries heartbeats, HA state information, routing updates, and User-ID mappings. The HA2 (data link) is dedicated to synchronizing session tables - it transfers active session information between peers so the passive unit can take over seamlessly without dropping existing connections. Selecting 'session information' correctly identifies the HA2 data link's purpose.

Topics

#High Availability#HA data link#Session synchronization

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