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Administering SCO IPX/SPX

Service advertising broadcast operation (track)

Servers on a NetWare network advertise their services and addresses using the Service Advertising Protocol (SAP). The information that these servers broadcast is collected by a SAP agent within each NetWare file server (by SAPD on an SCO IPX/SPX server) on the server's segment. If all SAP agents on the internetwork are exchanging SAP information properly, each agent's server information table should have information about all the servers on the internetwork. For more information about the server information table, see ``Service advertising''.

track can monitor the operation of service advertising broadcasts. Run track with the command line:

track on

track starts listing SAP traffic to the file specified by the parameter sap_track_out in NPSConfig. The default output file is /dev/console. To stop the listing, run track with the command line:

track off

The track listing looks like this:

   IN  [00000299:10005AAC41B2]  2:18:59pm   TIGER         1   DEMING        2
        FRED          1
   OUT [00000080:FFFFFFFFFFFF]  2:19:00pm   TIGER         2   DEMING        3
        OPUS          2   CALVIN        1
   OUT [00000299:FFFFFFFFFFFF]  2:19:00pm   OPUS          2   CALVIN        1
   OUT [00000099:FFFFFFFFFFFF]  2:19:00pm   TIGER         2   DEMING        3
        OPUS          2   CALVIN        1
   OUT [00000199:FFFFFFFFFFFF]  2:19:00pm   TIGER         2   DEMING        3
        CALVIN        1
   IN  [00000299:10005AAC41FC]  2:19:00pm   OPUS          2   CALVIN        1
   IN  [00000080:000000000001]  2:19:01pm   CALVIN        0
   IN  [00000199:0000C00FAB13]  2:19:23pm   OPUS          1
   IN  [00000099:0000C0448328]  2:19:33pm   FRED          1
   OUT [00000080:FFFFFFFFFFFF]  2:19:33pm   FRED          2
   OUT [00000299:FFFFFFFFFFFF]  2:19:33pm   FRED          2
   OUT [00000199:FFFFFFFFFFFF]  2:19:33pm   FRED          2
   IN  [00000299:10005AAC41FC]  2:19:33pm   FRED          2
It presents the following:

direction
The first field indicates the direction of the packet sent.

network address
The second field gives the network address. The number to the left of the colon is the network number. The number to the right of the colon is the node number.

time sent
The third field indicates the time that the packet was sent or received by the server.

routers
The remaining fields give the names of servers and the number of hops to access them.


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© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003