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SBC SWe cluster deployments can be configured to use either the Direct Single configuration model described in this topic, or the OAM node model. For more information on deployment requirements, refer to Specifying Cluster Configuration Mode Parameters in Heat Deployments if you deploy using Heat templates, or refer to Instantiating SBC SWe on OpenStack using VNFM if you deploy using VNFM. 

Direct Single Mode Configuration

When an SBC cluster is operating in Direct Single configuration mode, the active SBC node holds the active configuration for the cluster and it replicates changes to the standby node, if one is present. To update the cluster configuration, make changes on the active SBC node using either the CLI or the SBC Configuration Manager GUI. To save and activate configuration changes in the CLI, issue a saveAndActivate command. In the GUI, click the Save button in the top bar of the SBC Configuration Manager window. Refer to Accessing Configuration Interfaces for SBC SWe Clusters for details on using either the SBC Configuration Manager or the SBC CLI to configure the cluster. Once you save and activate your configuration changes, the active SBC node also saves the configuration revision to the configuration history stored on the EMS.

Configuration History 

Within the EMS Cluster Management GUI, you can use the cluster configuration history to revert the cluster configuration to a prior revision. Refer to Reverting Configuration Changes (Direct Single Mode)