Re: : RE: AAA Transport Profile and Application Failure

> RFC 3588 suggests very strongly that Diameter stacks should be
> implemented in layers.  Accordingly the possibility exists that in a
> Proxy agent or a server, the Diameter Base protocol handling process is
> functioning properly but the application process has fallen over.  I.e.
> The Diameter Transport connection is up and the watchdog commands
> (DWR/DWA) are being sent and received.

Note that a Diameter relay agent would not suffer from this problem since
it would advertise compatibility with all applications, and therefore
would not need any application processes on it which could fail.