Cabletron Systems SSR-GLX19-02, Руководство пользователя

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CoreWatch User’s Manual 175
Chapter 11: Configuring the SSR for IPX Routes
Figure 104. Edit ACL dialog box
12. Select or clear the Filter State check boxes to specify whether you want the ACL to
filter inbound traffic ( Input ), outbound traffic ( Output ), or both input and outbound
traffic. Click OK .
Caution
: You can apply up to two of each of the different IPX ACLs (IPX, IPX RIP, and IPX
SAP) to an IPX interface. When applying two ACLs of the same type, one ACL must
govern the inbound traffic and the other must govern the outbound traffic.
Configuring Static IPX SAP Entries
A service access point (SAP) allows service-providing nodes (such as file servers and print
servers) to advertise their services and addresses.
SAP makes the process of advertising and removing services dynamic. On the SSR, you
can also add static IPX SAP entries. Through SAP, routers create and maintain a database
of internetwork service information. This allows the clients on the network to determine
which services are available on the network and to obtain the internetwork addresses of
the nodes from which the clients can access those services. Because the SAP agent in each
router keeps up-to-date information on available servers, a client wanting to locate the
server can access a nearby router for the correct internetwork address.
The packet structure provided by SAP supports the following five functions:
• A workstation request for the name and address of the nearest server type