RFC 3588:Diameter Base Protocol
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Message Routing


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... support for inter-domain roaming and message routing (Sections 2.7 and 6), auditability [AAACMS], and transmission-layer ...
... authentication and/or authorization, while the realm is used for message routing purposes. ...


... Routing Table. Figure 6 provides an example of message routing using the procedures listed in these sections. ...
... Destination-Realm AVP is used to perform message routing decisions. Request messages ...


... application errors. A protocol error is one that occurs at the base protocol level, and MAY require per hop attention (e.g., message routing error). Application errors, on the other hand, generally occur due to a problem with a function specified in a Diameter application (e.g., user authentication ...



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