System information

Troubleshooting Novell IPX 8-155
IPX RIP: SAP Updates Not Propagated by Router
Misconfigured SAP filters Step 1 Use the show access-lists privileged exec command on suspect routers to
see whether there are Novell IPX access lists configured. Use the show
running-config privileged exec command to see whether there are SAP
filters that use any of the configured access lists. At the end of this chapter
is a list of Novell SAPs that includes the SAP description and hex and
decimal values.
Step 2 If SAP filters are configured, disable them by removing
ipx input-sap-filter and ipx output-sap-filter interface configuration
commands as appropriate (using the no version of the command).
Step 3 Use the debug ipx sap activity privileged exec command to see whether
SAP traffic is forwarded normally. The debug command output shows the
server name, network number, and MAC address of SAP packets.
Caution: Because debugging output is assigned high priority in the CPU
process, it can render the system unusable. For this reason, use debug
commands only to troubleshoot specific problems or during
troubleshooting sessions with Cisco technical support staff. Moreover, it
is best to use debug commands during periods of lower network traffic
and fewer users. Debugging during these periods decreases the likelihood
that increased debug command processing overhead will affect system
use.
Step 4 If SAP information is forwarded properly by the router, a SAP filter is
causing SAP updates to be dropped by the router.
Step 5 To isolate the problem SAP filter, reenable filters one at a time until SAP
packets are no longer forwarded by the router.
Step 6 Change the referenced access list to allow the SAP traffic you want to be
forwarded to pass through the router. Make sure all necessary ports are
configured with an explicit permit statement.
Step 7 Continue enabling filters one at a time and checking to see that SAP
traffic is still being forwarded properly until you have verified that all
filters are configured properly.
Novell server not sending SAP
updates
Step 1 Use the debug ipx sap activity privileged exec command or a protocol
analyzer to look for SAP updates from servers.
Caution: Because debugging output is assigned high priority in the CPU
process, it can render the system unusable. For this reason, use debug
commands only to troubleshoot specific problems or during
troubleshooting sessions with Cisco technical support staff. Moreover, it
is best to use debug commands during periods of lower network traffic
and fewer users. Debugging during these periods decreases the likelihood
that increased debug command processing overhead will affect system
use.
Step 2 If a server is not sending SAP updates, make sure the server is attached to
the network and is up and running.
Step 3 Make sure the server is properly configured to send SAPs. For
information on configuring your server software properly, refer to your
vendor documentation.
Possible Problem Solution