The Elements of IPX Routing 5-15
SAP Request Handling. When a SAP agent receives a general request, a
SAP response packet containing information about all servers of any type
known to the SAP agent is sent to the sending source. This response
includes the same information sent out in a periodic broadcast. When the
request is speciļ¬c, the SAP agent sends a SAP response directly to the
requesting node. This response contains information regarding all servers of
the type asked for by the requesting source (as far as the router knows this
information).