Passage: Novell based its network protocol on Xerox Network Systems (XNS), and created its own standards from IDP and SPP, which it named Internetwork Packet Exchange (IPX) and Sequenced Packet Exchange (SPX). File and print services ran on the NetWare Core Protocol (NCP) over IPX, as did Routing Information Protocol (RIP) and Service Advertising Protocol (SAP).

Question: What do the letters SAP signify?
Service Advertising Protocol