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## Related Documentation

- Bundle Failover Between CTP Devices at Alternate Sites Overview
- Checking Primary and Secondary AutoSwitch Connections for Bundles (CTPView)

# Configuring Bundle Failover Between CTP Devices at Alternate Sites (CTPView)

This topic describes how to configure AutoSwitch for bundle failover. You can configure the AutoSwitch feature only with CTPView.

Before you begin:

- Log in to the CTPView software at least at the Net_Admin level.
- Connect the CTPView server to the CTP device for which you want to configure this feature.

To configure AutoSwitch using CTPView:

1. In the side pane, select System > Configuration.
2. Set the AutoSwitch Daemon parameter to Enabled.
3. Click Autoswitch.
4. (Optional) You can update the network interface device (NID) information for all CTP devices that are reachable in the network. To do so, click Update NID info in the Remote Host Settings row.
5. Configure the parameters under AutoSwitch Bundle Failover Settings as described in Table 1, and click Submit Settings.

Table 1: AutoSwitch Parameter Settings in CTPView

Field | Function | Your Action
--- | --- | ---
Status | Specifies whether the AutoSwitch feature is enabled or disabled on the bundle. | Select one: Disabled—AutoSwitch is disabled for this bundle. Enabled—AutoSwitch is enabled for this bundle.
Switch Count | Specifies how many consecutive checks are required without a circuit being established before the circuit is switched over to an alternate circuit. The combination of the switch count value and the check period value determines the rate of the switchover. | Select the number of checks. We recommend that you configure the Switch Count and Check Period to values that prevent the circuit from switching in the event of a short transient outage.
Check Period | Specifies the time between the checking of ports to determine the circuit status. The combination of the switch count value and the check period value determines the rate of the switchover. | Select the number of seconds. We recommend that you configure the Switch Count and Check Period to values that prevent the circuit from switching in the event of a short transient outage.
AutoSwitch Primary | Specifies the CTP device that is used as the primary device to fail over to. Also specifies the circuit ID and interface that are used on the device. | To specify the primary device: Click the box under AutoSwitch Primary, and select a group. A list of CTP devices within the group appears. Select a CTP device. A list of the circuit IDs configured on the CTP device appears. Select a circuit ID. A list of interfaces configured with the circuit ID appears. Select an interface.
AutoSwitch Secondary | Specifies the CTP device that is used as the secondary device to fail over to. Also specifies the circuit ID and interface that are used on the device. | To specify the secondary device: Click the box under AutoSwitch Primary, and select a group. A list of CTP devices within the group appears. Select a CTP device. A list of the circuit IDs configured on the CTP device appears. Select a circuit ID. A list of interfaces configured with the circuit ID appears. Select an interface.
Secondary Revert | Specifies whether or not the CTP device periodically checks the connectivity to the AutoSwitch primary device after a switchover to the secondary device. | Select one: Disabled—The CTP device does not check the connectivity to the primary device. Enabled—The CTP device checks the connectivity to the primary CTP device after a switchover. If the primary device becomes available, the CTP device reconnects to the primary CTP device.

## Related Documentation

- Bundle Failover Between CTP Devices at Alternate Sites Overview
- Checking Primary and Secondary AutoSwitch Connections for Bundles (CTPView)

#### Published: 2010-10-26

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