3Com 7757 Configuration Manual page 149

Troubleshooting IPX SAP
Symptom 1: Unable to add static service information into the service information
table.
Solutions:
Use the display ipx service-table inactive command to check whether the
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service information is in the inactive service information table. If yes, there is no
active route to the server.
Check whether the number of service information entries exceeds the
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limitation with the display ipx service-table command. IPX can support 10,240
service information entries with up to 5,120 service types and 5,120 static
service information entries.
Symptom 2: A service information entry cannot be found in the service
information table.
Solutions:
Use the display ipx service-table inactive command to check whether the
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service information is in the inactive service information table. If yes, there is no
active route to the server.
Check whether the VLAN interface is UP and SAP is enabled with the display
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ipx interface command.
Check whether the hop count of the route to the server is smaller than 16 with
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the display ipx routing-table command.
Check whether adequate memory is available for adding the service entry into
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the service information table. You can try to add it as a static service entry.
Symptom 3: No new dynamic service entry is found in the service information
table.
Solutions:
Check whether the relevant packets are received with the debugging ipx
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packet and debugging ipx sap packet verbose commands. If the packets are
not received, the underlying network connection is unavailable.
Use the ipx enable command to check whether IPX is enabled.
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Check whether IPX is configured on the VLAN interface with the display ipx
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interface command.
Check whether SAP is enabled with the undo ipx sap disable command.
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Use the display ipx service-table command to check whether the number of
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SAP service entries is under the limit. IPX can support 10,240 service entries
with 5,120 service types.
Check whether the MTU of SAP packets is less than or equal to the MTU at the
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physical layer.
Symptom 4: No update packet is received on the VLAN interface.
Solutions:
Troubleshooting IPX 149