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ABNF
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... Diameter applications MUST define one Command Code, or add new
mandatory AVPs to the ABNF.
The expected AVPs ...
...
The expected AVPs MUST be defined in an ABNF [ABNF] grammar (see
Section 3.2). If the Diameter application ...
... bit set when sent within an accounting command,
regardless of whether it is required or optional within the ABNF for
the accounting application.
...
... state machine) is defined
within the application, or new mandatory AVPs are added to the ABNF.
Within an accounting ...
... E(rror) - If set, the message contains a protocol error,
and the message will not conform to the ABNF
described for this command. Messages with the 'E'
...
... Command Code ABNF specification ...
...
Every Command Code defined MUST include a corresponding ABNF
specification, which is used to define the AVPs that MUST or MAY be
present. The following format is used in the definition:
...
...
qual = [min] "*" [max]
; See ABNF conventions, RFC 2234(-> 4234draft) Section 6.6.
; The absence of any qualifiers depends on whether
...
... ;
; NOTE: "[" and "]" have a different meaning
; than in ABNF (see the optional rule, above).
; These braces cannot be used to express
; optional fixed rules (such as an optional
...
... Every Grouped AVP defined MUST include a corresponding grammar, using
ABNF [ABNF] (with modifications), as defined below.
...
... proxies, redirects or relays) MUST not include the
Destination-Realm in its ABNF. The value of the Destination-Realm
AVP ...
... AVP Code 284) is of type Grouped. The Grouped
Data field has the following ABNF grammar:
Proxy-Info ...
... - A command is received with an AVP that is omitted, yet is
mandatory according to the command's ABNF. The receiver issues an
answer with the Result-Code ...
... processing rules defined in Section 6.2. When set, the answer
message will not conform to the ABNF specification for the command,
and will instead conform to the following ABNF:
...
... answer
message will not conform to the ABNF specification for the command,
and will instead conform to the following ABNF:
Message Format ...
... successfully or whether an error occurred. Its Data field has the
following ABNF grammar:
AVP ...
... Crocker, D. and P. Overell, "Augmented BNF for Syntax Specifications: ABNF", RFC 2234(-> 4234draft), November 1997. ...