F5 BIG-IP uses aConfigSyncmechanism to ensure that all members of a Device Service Cluster (DSC) share the same configuration.
Manual Synchronization:By default, configuration changes made on one device (the "source") do not automatically propagate to other members.
Direction of Sync:Once a Virtual Server is created on device 1, that device's configuration is now "newer" than the rest of the group. The administrator must initiate a synchronization from themodified device (device 1) to the Sync-Failover group.
Consistency:This ensures that if a failover occurs, device 2 (the standby) will have the exact same Virtual Server configuration and can take over traffic immediately without interruption.
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