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Appendix B
Commands in This Study Guide
Command
Description
Chapter(s)
debug ip ospf
retransmission
When OSPF has to retransmit
information, this command triggers a
retransmission event that debug captures
and echoes to the console.
6
debug ip ospf spf
Provides debug information for all SPF
transactions. By enabling SPF debugging,
OSPF events debugging is also turned on.
6
debug ip ospf tree
Provides information for the OSPF
database tree.
6
debug ip rip
Provides you with all possible RIP
protocol information.
6
debug ip rip events
Provides output regarding RIP protocol
events.
6
debug ipx ipxwan
Produces information during state
changes and the start-up of serial
interfaces configured for IPXWAN.
9
debug ipx packet
Displays all IPX traffic that enters or
leaves the router.
9
debug ipx routing
Reports all IPX routing processes at the
router, including IPX RIP, IPX EIGRP,
and NLSP.
9
debug ipx sap activity
Provides an administrator with
additional information and possible
indications of problem causes.
9
debug ipx sap events
Displays events as interesting, and the
events
keyword limits the output of
information.
9
debug isdn q921
Gives details regarding the Layer 2
connection sequence for ISDN.
8
debug isdn q931
Gives details regarding the Layer 3
connection sequence for ISDN.
8
debug lapb
Contains information regarding all
packets and traffic that use LAPB
encapsulation.
7
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