2.4.3. ServiceMode

2.4.3. ServiceMode

In ServiceMode, the TargetName and SvcParams within each RR associate an alternative endpoint for the service with its connection parameters.

Each protocol scheme that uses SVCB MUST define a protocol mapping that explains how SvcParams are applied for connections of that scheme. Unless specified otherwise by the protocol mapping, clients MUST ignore any SvcParam that they do not recognize.

Some SvcParams impose requirements on other SvcParams in the RR. A ServiceMode RR is called "self-consistent" if its SvcParams all comply with each other's requirements. Clients MUST reject any RR whose recognized SvcParams are not self-consistent and MAY reject the entire RRset. To help zone operators avoid this condition, zone-file implementations SHOULD enforce self-consistency as well.