Service Advertising Protocol, and how a workstation running NetWare discovers which servers are available to connect to on the network. There are three types of SAP packets:
  • Periodic information broadcasts, which are used to advertise information that a server has within its bindery if it's a NetWare 3.x server, or NetWare Directory Service if it's a 4.x server. They occur every 60 seconds by default.
  • Service queries
  • Service responses

not related to the node SAP is bullshit.