Cisco Cisco Packet Data Gateway (PDG)
Diameter Dictionaries and Attribute Definitions
▀ Diameter Attributes
▄ AAA Interface Administration and Reference, StarOS Release 19
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Diameter Attributes
Diameter Attribute Value Pairs (AVPs) carry specific authentication, accounting, authorization, routing and security
information as well as configuration details for the request and reply.
information as well as configuration details for the request and reply.
Some AVPs may be listed more than once. The effect of such an AVP is specific, and is specified in each case by the
AVP description.
AVP description.
Each AVP of type OctetString must be padded to align on a 32-bit boundary, while other AVP types align naturally. A
number of zero-valued bytes are added to the end of the AVP Data field till a word boundary is reached. The length of
the padding is not reflected in the AVP Length field.
number of zero-valued bytes are added to the end of the AVP Data field till a word boundary is reached. The length of
the padding is not reflected in the AVP Length field.
AVP Header
The AVP header contains the following three fields that requires IANA namespace management.
AVP Code
Vendor-ID
Flags
The fields in the AVP header MUST be sent in network byte order. The format of the header is:
Figure 2.
AVP Header
Table 1. AVP Header Details
Field
Description
AVP
Code
Code
The AVP Code, combined with the Vendor-ID field, identifies the attribute uniquely. AVP numbers 1 through 255 are
reserved for backward compatibility with RADIUS, without setting the Vendor-ID field. AVP numbers 256 and above
are used for Diameter, which are allocated by IANA.
reserved for backward compatibility with RADIUS, without setting the Vendor-ID field. AVP numbers 256 and above
are used for Diameter, which are allocated by IANA.