Changes to and new information added for the following sections:

• SSL VPN load balancing.
• FortiOS Carrier GTP load balancing.
• FortiGate-6000 high availability.
• Primary FortiGate-6000 selection with override disabled (default).
• Primary FortiGate-6000 selection with override enabled.
• FPC failure.
• FPC failover in a standalone FortiGate-6000.
• Troubleshooting an FPC failure.

New and changed sections:

• Multi VDOM mode and the Security Fabric.
• Failover protection.

Adding information about a new feature that supports load balancing TCP and UDP sessions with fragmented packets, see Load balancing TCP, UDP, and ICMP sessions with fragmented packets.