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TIBCO Rendezvous® 8.7.0

## Forward Fault Tolerance Messages across Network Boundaries

Rendezvous fault tolerance software depends on messages between group members, and on some Rendezvous system advisory messages.

These messages travel freely within a single network segment. However, if your network consists of several segments connected by Rendezvous routing daemons, then you must instruct the routing daemons to forward the subjects in Critical Subjects for Fault Tolerance.

Routing daemons must forward all these subjects in both directions—import and export.

Similarly, if clients in your network use TLS to connect to `rvsd` or `rvsrd`, you must configure the secure daemon to authorize the subjects in Critical Subjects for Fault Tolerance.

Critical Subjects for Fault Tolerance

Subject | Description
`_RVFT.*.``group_name` | Rendezvous fault tolerance software uses messages with these subjects to communicate among group members. Routing daemons must forward these subjects in both directions.

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