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Next-Generation Firewall Docs

Getting Started
Administration
Version
- Cloud Management of NGFWs
- PAN-OS 10.0 (EoL)
- PAN-OS 10.1
- PAN-OS 10.2
- PAN-OS 11.0
- PAN-OS 11.1
- PAN-OS 9.1
Networking
Version
- PAN-OS 10.1
- PAN-OS 10.2
- PAN-OS 11.0
- PAN-OS 11.1
AIOps
Incidents & Alerts
Release Notes
Version
- Cloud Management and AIOps for NGFW
- PAN-OS 10.0 (EoL)
- PAN-OS 10.1
- PAN-OS 10.2
- PAN-OS 11.0
- PAN-OS 11.1
- PAN-OS 8.1 (EoL)
- PAN-OS 9.0 (EoL)
- PAN-OS 9.1

Focus

HA Concepts

Table of Contents

Filter

Expand All | Collapse All

Next-Generation Firewall Docs

Getting Started
Administration
Version
- Cloud Management of NGFWs
- PAN-OS 10.0 (EoL)
- PAN-OS 10.1
- PAN-OS 10.2
- PAN-OS 11.0
- PAN-OS 11.1
- PAN-OS 9.1
Networking
Version
- PAN-OS 10.1
- PAN-OS 10.2
- PAN-OS 11.0
- PAN-OS 11.1
AIOps
Incidents & Alerts
Release Notes
Version
- Cloud Management and AIOps for NGFW
- PAN-OS 10.0 (EoL)
- PAN-OS 10.1
- PAN-OS 10.2
- PAN-OS 11.0
- PAN-OS 11.1
- PAN-OS 8.1 (EoL)
- PAN-OS 9.0 (EoL)
- PAN-OS 9.1

HA Concepts

The following topics provide conceptual information about how HA works on a Palo Alto Networks firewall:

HA Links and Backup Links

Device Priority and Preemption

LACP and LLDP Pre-Negotiation for Active/Passive HA

Floating IP Address and Virtual MAC Address

ARP Load-Sharing

Route-Based Redundancy

NAT in Active/Active HA Mode

ECMP in Active/Active HA Mode