2.8.6 Selecting Attributes for a Trusted Provider

You can select attributes that an identity provider sends in an authentication request or that a service provider receives in an authentication response. The attributes are selected from an attribute set, which you can create or select from a list of already defined sets (see Section 2.4.1, Configuring Attribute Sets).

For best performance, you must configure the trusted providers to use attribute sets, especially for attributes that have static values such as a user’s e-mail address, employee ID, or phone number. It reduces the traffic between the provider and the LDAP server, because the attribute information can be gathered in one request at authentication rather than in a separate request for each attribute when a policy or protected resource needs the attribute information.