This INTEGER indicates whether this monitored interface is considered a trusted interface for ClusterXL's decision-making, typically meaning it's part of the secured cluster control-plane network rather than a general data interface. Trusted interfaces carry more weight in failover logic since their failure is more likely to genuinely indicate a member-wide problem rather than an isolated data-path issue. An admin seeing failover triggered by an interface flagged as trusted would treat that failover as a more serious, member-level event than one triggered by a non-trusted data interface.