Single Logout Protocol

The Single Logout Protocol defines how providers notify each other of logout events. This message exchange protocol is used to terminate all sessions when a logout occurs at the service provider or identity provider. The particular transfer and messaging protocol used in the exchange (such as HTTP or SOAP) are specified in profiles. Two of these profiles are:

• The SOAP/HTTP-based profile relies on asynchronous SOAP over HTTP messaging calls between providers.

• The HTTP Redirect-based profile relies on HTTP redirects between providers.