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Routing Information Protocol (RIP)
RIP, which was also derived from XNS, is a protocol that allows for
the bidirectional transfer of routing tables and provides timing
information (ticks), so that the fastest route to a destination can be
determined. IPX routers use RIP to create and dynamically maintain
which are databases of internetwork routing information. See the
last section in this chapter for more information on routing tables.
Service Advertising Protocol (SAP)
SAP is a protocol that provides servers and routers with a method
to exchange service information. Using SAP, servers advertise their
services and addresses. Routers collect this information to
dynamically update their routing tables and share it with other
routers. These broadcasts keep all routers on the internetwork
synchronized and provide real-time information on accessible
servers on the internetwork.
The following is a list of SAP server types:
Unknown
Print Queue
File Server
Job Server
Print Server
Archive Server
Remote Bridge Server
Advertising Print Server
Reserved Up To
0000h
0003h
0004h
0005h
0007h
0009h
0024h
0047h
8000h
IPX Setup
5-3
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