H3C Technologies H3C MSR 50 - Manual (Page 19)

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Troubleshooting IPX RIP
No routes can be learned from a peer
• Enable IPX RIP debugging using the debugging ipx rip packet verbose command. Check whether
RIP packets can be received from the peer. If not, problems on the lower layer connection of the two
devices might exist.
• If a RIP packet with routing information is received from the peer, use the debugging ipx rip event
command to see whether the received route is added to the routing table. If not, faults occurred
when the route was added to the routing table. Possible faults could be that the packet
encapsulation formats of the end interfaces do not match, or a bad RIP packet is received and
discarded.
A static route is redistributed to IPX RIP but no static route is advertised
• Use the display ipx routing-table command to check whether the static route exists.
• If the static route is not available, use the display ipx routing-table verbose command to check
whether it is inactive. If so, check further why it is inactive. Possible reasons could be: the next hop
network ID is unreachable, or the outgoing interface is down. When the route becomes active, it
can be advertised as a RIP route.
• If the static route exists in the outing table, check its hops. If hops are more than or equal to 15, the
static route cannot be advertised.
Troubleshooting IPX SAP
Unable to add a static service information item to SIT
• Use the display ipx service-table inactive command to see whether the item is inactive. If so, it
indicates that no active route to the destination server exists.
• Use the display ipx service-table command to see whether the service information items reach the
upper limit. IPX supports up to 10240 service information items, 2048 service types and 5120 static
service items.
No active service information item in SIT
• Use the display ipx service-table inactive command to check whether the service information item
is inactive. If so, it indicates that no active route to the destination server exists.
• Use the display ipx interface command to verify that the interface is UP and SAP is enabled.
• Use the display ipx routing-table command to verify that the active route to the server has a hop
number less than 16.
• Another possible reason is that no sufficient memory is available to add the service information item
to the SIT. You can remove some static service information items.
No new dynamic service information items in SIT
• Use the debugging ipx packet and debugging ipx sap packet verbose commands to check whether
relevant packets are received. If no packet is received, problems in lower layer network connection
might exist.
• If IPX is disabled, use the ipx enable command in system view to enable IPX.
• Use the display ipx interface command to make sure IPX is configured on relevant interfaces.
• If SAP is disabled, use the undo ipx sap disable command to enable SAP.