3Com CoreBuilder 3500, Руководство по внедрению

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442 C
HAPTER
15: IPX R
OUTING
SAP Import Polices
Each time that the router receives an advertised service, it compares the
service to the import polices to decide whether to add the service to the
service table or drop it. If the router accepts the service, the router adds it
to the service table.
The default import policy is none; that is, the router places all services into
the service table.
SAP Export Policies
At certain times, such as when a router is started up or shut down, SAP
advertises services to other routers. Each time the router prepares to
advertise the service, it compares it to the export policies to decide
whether to advertise the service. If the export policy does not prohibit the
service, the router sends it out.
The default export policy is none; that is, the router advertises all services.
SAP Policy Parameters
These parameters define SAP policies:
■
Policy type — Import (apply the policy to received services) or Export
(apply the policy to advertised services).
■
Route origin — The origin of the service for this policy, if it is an
export policy: static, SAP, or all.
■
Service type — The Novell standard 6-digit hexadecimal number that
represents the type of service offered by the server. For details, consult
your Novell documentation. See the
Command Reference Guide for a
list of common service types.
■
Server name — The name of the server providing the services.
■
Network address — The IPX network address of the network on
which the server resides.