service advertising protocol (NetWare) (SAP)
The Service Advertising Protocol(SAP) is a NetWare protocol from Novell and is used to control the application. SAP allows file servers, routers and application servers to advertise their services and addresses.
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Under SAP, services can be dynamically added and removed from the network. When servers are started, they advertise the services offered through SAP broadcasts. When a server is shut down, it uses SAP to indicate that the services will soon be unavailable. SAP information is loaded into a table that is made available to all nodes that request a particular service.