What is the recommended sync method in a ClusterXL deployment?

In a ClusterXL deployment, utilizing a dedicated sync interface is the recommended synchronization method. This approach enhances the reliability and efficiency of the synchronization process between cluster members. By isolating the sync traffic on a dedicated interface, the synchronization of essential data—such as security policies, connection states, and sessions—occurs without competing for bandwidth with other types of traffic.

This ensures that the synchronization process remains unaffected by other network activities, leading to reduced latency and higher reliability in maintaining consistent configurations and state information across all cluster members. Hence, using a dedicated sync interface contributes to improved overall performance and stability of the ClusterXL setup.

Other options, while they might involve synchronization, do not provide the same level of dedicated resource allocation and operational efficiency that a single dedicated sync interface guarantees.