New HA features and changes

New HA features and changes for FortiOS 6.0.9:

• HA heartbeat VLAN double-tagging, see HA heartbeat VLAN double-tagging,
• New protocol for handing HA chassis ID conflicts, see Introduction to FortiGate-7000 FGCP HA.

New HA features and changes for FortiOS 6.0.6:

• Configuration synchronization, see Standalone configuration synchronization.
• HA route_ttl support, see Changing how long routes stay in a cluster unit routing table.

New HA features and changes for FortOS 6.0.4:

• FortiGate Session Life Support Protocol (FGSP) (also called standalone session sync) is supported. See FortiGate-7000 FGSP.

• The following HA session synchronization options are now supported for FGCP HA:

  config system ha

  set session-pickup {disable | enable}

  set session-pickup-connectionless {disable | enable}

  set session-pickup-delay {disable | enable}

  set inter-cluster-session-sync {disable | enable}

  end

• The following HA session synchronization options are now supported for FGSP HA:

  config system ha

  set session-pickup {disable | enable}

  set session-pickup-connectionless {disable | enable}

  set session-pickup-expectation {disable | enable}

  set session-pickup-nat {disable | enable}

  end

• If both FortiGate-7000s in a cluster are configured with the same chassis ID, the device with the lowest serial number will be shut down.