1. Expand the Device Manager slider and click Devices.
2. In the Managed Devices - Group View pane, click Add.
3. In the Select Network Function Type dialog box select the plug-in product vendor type from the Categories table.

   Note:

   Other EM plugin product vendor types may also display in this table if they are installed in Oracle Communications Session Delivery Manager.
4. In the Network Function Type drop-down list, select the Device Cluster NF type and click Continue.
5. In the Add Network Function: Device Cluster dialog box, complete the following fields:

   Network Function Name field	The Network Function (NF) name that you want to use for the component device(s) that you are configuring. For example, msgNF.
   Description	The description of the NF. For example, "There is only one scalability group, which might contain eight MSG devices."
   Component Type drop-down list	Select one of the following NF component types that you want to configure. Note: Only devices that match the chosen component type can be added to the device cluster NF. For example, the SP Edge & Core product plug-in has the following component types: SBC—Oracle Communications Session Border Controller. SR—Oracle Communications Session Router. SLB—Oracle Communications Session Load Balancer. CSM—Oracle Communications Core Session Manager. SLRM—Subscriber-aware load balancing and route management (SLRM) mechanisms. MSG— Oracle Communications Mobile Security Gateway (MSG).
   Device Cluster Name field	The name of the device cluster group in this NF. For example: msgCluster
   Redundancy Type drop-down list	Select the device cluster redundancy type: HA—The cluster has high-availability (HA) capability. STANDALONE—The cluster is standalone and does not have HA capability.

6. Click Apply.
   The NF now appears in the Managed Devices pane.

Once you have added a device cluster to an NF, the device cluster must be associated with an offline configuration.

1. Expand the Device Manager slider and click Devices.
2. In the Managed Devices pane, select the device cluster that you want to associate with an offline configuration and click Edit.
3. In the Associate Offline Configuration to NF Device Cluster dialog box, view and complete the following fields:

   Network Function	The NF to which this device cluster belongs.
   Device Cluster	The empty device cluster group that you selected. For example: CSM-core
   Offline Configuration drop-down list	Select the name of the offline configuration from the list of available offline configurations that is available (that is not currently in use) that the device cluster uses. This offline configuration is used to initiate devices (that are added later) to this device cluster. Note: The offline configuration may not display in the selection box under the following circumstances: It is in use by another device cluster. Its redundancy type does not match the type that is selected when the device cluster was created. The pre-existing offline configurations are also filtered.
   Synchronized Mode check box	The synchronized mode determines if the devices in the device cluster have their individual configurations kept in synchronicity with the configuration defined in the offline configuration as it changes over time. Check the check box to use the offline configuration for activating devices when they are added to the device cluster, and for all future configuration management of those devices to go through the offline configuration. Individual configuration management for synchronized devices becomes "read only." If the check box is left unchecked (Default), the offline configuration is used to activate devices only when they are added to the device cluster, and all future configuration management of those devices is maintained separately from the offline configuration.

4. Click Apply.

Now that you have associated a device cluster to its offline configuration you can add devices to the device cluster.

1. Expand the Device Manager slider and click Devices.
2. In the Managed Devices - Group View pane, select to expand the device cluster to which you are adding a device.
3. Select the device cluster and click Add.
4. In the Add Device to scalability group dialog box, complete the following fields:

   Name	The device name.
   Primary IP address field	The primary IP address for this device.
   Secondary IP address field	The secondary IP address. This field appears if you have a high-availability (HA) device pair only.
   User Name field	The device user name.
   User Password field	The device password.
   SNMP agent mode drop-down list	Select the SNMP version number that the SNMP agent supports and click Load. Valid versions are v1, v2 and v3. If you select v3, authentication fields for SNMP version 3 appear. See below for more information about these fields.
   SNMP port field	The SNMP port number. The default SNMP port number is 161.
   SNMP community name field	Note: This field applies only to SNMP version 1 and 2. Enter the SNMP community name for this device, which is the name of an active community where the device can send or receive SNMP performance and fault information. Note: For a device cluster, the SNMP community name must match an SNMP community that is defined in the offline configuration, which must also contain the IP addresses of each SDM server cluster node.
   SNMPv3 user name field	The SNMP version 3 user name.
   SNMPv3 authentication protocol drop-down list	Select the SNMP version 3 authentication protocol: SHA—Secure hash algorithm (SHA-1). MD5—MD5 hash algorithm. NONE
   SNMPv3 authentication password field	The SNMP version 3 authentication password.
   SNMPv3 privacy protocol drop-down list	Select the SNMP version 3 privacy protocol: DES—Data encryption standard algorithm (DES) for the encryption of electronic data. AES128—Advanced encryption standard (AES) encryption algorithm. NONE
   SNMPv3 privacy password field	The SNMP version 3 privacy password.

5. Click Check Device to verify that the device has the same software version that the offline configuration uses.
6. Click Next to configure the necessary data variables offered by the offline configuration.
7. In the next dialog box, enter the device-specific parameters for each data variable that you are provided (through the offline configuration).

   Note:

   See the Create Data Variables to Support Device Specific Values section for more information about how data variables are created in an offline configuration.
8. The device must already be active and on the network for the activation process to start (it has already booted). Click Finish to start the activation process.
   In the Managed Devices table, enable the hidden Activation Status column to see the device status. If the device activates successfully, the Activated status displays. If the device failed to activate, the Activation Failed status displays.

   For example, one scenario for a device that fails to activate could be if it was re-booted and failed to re-boot during the activation process.