# Timers

Device > Configure > Redundancy Framework Subsystem … > Timers

The Timers dialog box allows configuration of timers for the Redundancy Framework subsystem.

The following information is displayed:

- Keepalive Threshold (cRFCfgKeepaliveThresh)
- Keepalive Timer (milliseconds) (cRFCfgKeepaliveTimer)
- RF Notification Timer (milliseconds) (cRFCfgNotifTimer)

The following list specifies buttons in this dialog box, as well as their function:

- Click OK to continue.

- Click Apply to save the changes in the dialog box.

- Click Cancel to close the dialog box.

- Click Refresh to update the contents of the dialog box.

- Click Print to print the contents of the dialog box.

- Click Help to access online help.

Keepalive Threshold (cRFCfgKeepaliveThresh)

On platforms that support keep-alives, this object designates the number of lost keep-alives tolerated before a failure condition is declared. If this occurs, a SWACT notification is sent.

Note: This value is not applicable for platforms that do not support keep-alives.

Keepalive Timer (milliseconds) (cRFCfgKeepaliveTimer)

The value of this object is used to guard against lost keep-alives. The Redundancy Framework subsystem expects to receive a keep-alive within this period. If a keep-alive is not received within this time period, a SWACT notification is sent.

Note: This value is not applicable for platforms that do not support keep-alives.

RF Notification Timer (milliseconds) (cRFCfgNotifTimer)

As the standby unit progresses to the "standbyHot" state, asynchronous messages are sent from the active unit to the standby unit. These messages must then be acknowledged by the standby unit. If the active unit receives acknowledgement during the time period specified by this object, progression proceeds as normal. If the timer expires and an acknowledgement is not received by the active unit, a switch of activity occurs.

Note: The term "notification" refers to a Redundancy Framework notification, not an SNMP notification.