The configuration instructions, starting in Prerequisites, use the Login method for the SAML 2.0 and Liberty protocols and Mapped Attributes method for the SAML 1.1 protocol.
Federation requires the configuration of a trusted relationship between an identity provider and a service provider.
Figure 5-7 illustrates setting up federation between two identity servers, because a Access Manager Identity Server can act as either an identity provider or a service provider.
Before setting up a trusted relationship, you must make the following decisions: Identity Server supports SAML 1.1, SAML 2.0, and Liberty.
You need to decide which of these protocols to use.
Federation can be configured to go both ways, so that it does not’matter whether the user logs into Site A or Site B.