Technical Summary
The Diameter base protocol specifies mechanisms whereby a given realm
may advertise Diameter nodes and the supported transport protocol.
However, these mechanisms do not reveal the Diameter applications
that each node supports. A peer outside the realm would have to
perform a Diameter capability exchange with every node until it
discovers one that supports the required application. This document
updates [RFC3588] and describes an improvement using an extended
format for the Straightforward-NAPTR (S-NAPTR) Application Service
Tag that allows for discovery of the supported applications without
doing Diameter capability exchange beforehand.
Working Group Summary
Since the WG consists of a few individuals, it is difficult to assess how
solid is the WG consensus. However, the document was taken as WG item
with a strong consensus on its usefulness, and received good contributions
afterwards.
Document Quality
There is currently no publicly announced implementations of this
mechanism, but there is known on-going implementation effort.
S-NAPTR and Diameter are implemented protocols.
Personnel
Sebastien Decugis is the Document Shepherd for this document. Dan
Romascanu is the Responsible Area Director.'