Users Guide

Usage
Information
Although the passive interface does not send or receive routing updates, the network on that interface is
still included in OSPF updates sent using other interfaces.
The default keyword sets all interfaces as passive. You can then configure individual interfaces, where
adjacencies are desired, using the no passive-interface interface command. The no form of
this command is inserted into the configuration for individual interfaces when the no passive-
interface interface command is issued while passive-interface default is configured.
This command behavior has changed as follows:
passive-interface interface
● The previous no passive-interface interface is removed from the running configuration.
● The ABR status for the router is updated.
● Save passive-interface interface into the running configuration.
passive-interface default
● All present and future OSPF interfaces are marked as passive.
● Any adjacency is explicitly terminated from all OSPF interfaces.
● All previous passive-interface interface commands are removed from the running
configuration.
● All previous no passive-interface interface commands are removed from the running
configuration.
no passive-interface interface
● Remove the interface from the passive list.
● The ABR status for the router is updated.
● If passive-interface default is specified, then save no passive-interface
interface into the running configuration.
No passive-interface default
● Clear everything and revert to the default behavior.
● All previously marked passive interfaces are removed.
● May update ABR status.
On configuring suppression using the passive-interface command, the state of the OSPF neighbor does
not change to INIT; instead, the state of the OSPF neighbor changes to DOWN after the dead-timer
expires.
debug ip ospf
Display debug information on OSPF. Entering the debug ip ospf commands enables OSPF debugging for the first OSPF
process.
S5000
Syntax
debug ip ospf process-id [bfd |event | packet | spf | database-timer rate-
limit]
To cancel the debug command, use the no debug ip ospf command.
Parameters
process-id Enter the OSPF Process ID to clear a specific process. If no Process ID is entered,
all OSPF processes are cleared.
bfd (OPTIONAL) Enter the keyword bfd to debug only OSPF BFD information.
event (OPTIONAL) Enter the keyword event to debug only OSPF event information.
packet (OPTIONAL) Enter the keyword packet to debug only OSPF packet information.
spf (OPTIONAL) Enter the keyword spf to display the Shortest Path First information.
Open Shortest Path First (OSPFv2 and OSPFv3) 1175