If the unit is part of a HA configuration, the following screen displays when you click one of the interfaces.

This screen tells the user:

  • The IP address of this LoadMaster (192.168.15.110 in this example).
  • The HA shared IP address (192.168.15.112 in this example). This is the IP address used to configure the pair.
  • The IP address of the paired machine (192.168.15.111 in this example).
  • Whether or not this interface is enabled for HA health-checking.
  • The speed of the link (automatically detected). If the link is down, it is indicated here.
  • Any alternate addresses on this interface.

Use for HA checks

Some key points to note about this option are below:

  • The Use for HA checks check box must be selected on at least one interface that has connectivity from HA1 to HA2.
  • If the Use for HA checks check box is grayed out it means that this is the only interface configured to be used for HA checks and cannot be deselected.
  • The Use for HA checks option must be enabled on all production interfaces. If HA checks are only selected for non-production interfaces, the backup unit does not notice if a production interface goes down and does not switch to the active role.
  • Enabling Use for HA checks on an interface that is directly cabled between the two units is no longer supported.