> RADIUS Attribute Quick Reference Tables
> This appendix presents RADIUS attribute quick reference tables listing RADIUS attributes and their relationships to generated RADIUS packets and the dictionaries to which they belong.
> The following table describes the indicators used in the quick reference table.

> Entry | Description
> 0 | The AVP MUST NOT be present in the message.
> 0-1 | Zero or one instance of the AVP MAY be present in the message. If there are more than one instance of the AVP, it is considered an error.
> 0+ | Zero or more instances of the AVP MAY be present in the message.
> 1 | One instance of the AVP MUST be present in the message.

> ‌
> Attributes not listed in a particular table do not appear in RADIUS packets generated for a session of the corresponding service.
> The quick reference tables are here.

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