The algorithm used to determine when to switch network traffic from one adapter to another. The following algorithms are supported: unknown(1) Indicates that the instrument agent does not recognize the controller. You may need to upgrade the instrument agent. none(2) Indicates the logical adapter is not fault tolerant. There is a single physical adapter associated with the logical adapter. manual(3) Indicates that the logical adapter has more than one physical adapter associated with it. In order to switch from the active adapter to a standby adapter, user action is required. switchOnFail(4) Indicates that the logical adapter has more than one physical adapter associated with it. If a failure of the active adapter is detected, network traffic will automatically switch to a standby adapter. The standby adapter will remain active until some action (manual switch, system restart) restores the primary adapter to active. preferredPrimary(5) Indicates that the logical adapter has more than one physical adapter associated with it. If a failure of the active adapter is detected, network traffic will automatically switch to a standby adapter. If the original primary adapter recovers from the failure, it will automatically become active again. auto(6) Indicates that the logical adapter is not in manual failover mode. preferenceOrder(7) Indicates that the logical adapter has more than one physical adapter associated with it. When a failure of the active adapter is detected, network traffic automatically switchs to one standby adapter. The relative priority of adapters are used to select the new primary adapter.