DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enables OSPF routing for the specified routing process and
places the router in router configuration mode.
router ospf process-name
Example:
RP/0/RSP0/CPU0:router(config)# router ospf 1
Step 2
The process-name argument is any alphanumeric
string no longer than 40 characters.
Note
Configures a router ID for the OSPF process.
router-id { router-id }
Step 3
Example:
RP/0/RSP0/CPU0:router(config-ospf)# router id
10.10.10.100
We recommend using a stable IPv4 address as the
router ID.
Note
(Optional) Requests notification of neighbor changes.log adjacency changes [ detail | disable ]
Step 4
Example:
RP/0/RSP0/CPU0:router(config-ospf-ar-if)# log
adjacency changes detail
•
By default, this feature is enabled.
•
The messages generated by neighbor changes are
considered notifications, which are categorized as severity
Level 5 in the logging console command. The logging
console command controls which severity level of
messages are sent to the console. By default, all severity
level messages are sent.
(Optional) Configures NSF OSPF protocol.nsf { cisco [ enforce global ] | ietf [ helper disable
]}
Step 5
The example enables graceful restart.
Example:
RP/0/RSP0/CPU0:router(config-ospf)# nsf ietf
(Optional) Sets SPF throttling timers.
timers throttle spf spf-start spf-hold spf-max-wait
Example:
RP/0/RSP0/CPU0:router(config-ospf)# timers
throttle spf 500 500 10000
Step 6
Enters area configuration mode.
area area-id
Step 7
Example:
RP/0/RSP0/CPU0:router(config-ospf)# area 1
The area-id argument can be entered in dotted-decimal or
IPv4 address notation, such as area 1000 or area 0.0.3.232.
However, you must choose one form or the other for an area.
We recommend using the IPv4 address notation.
Enters interface configuration mode and associates one or more
interfaces to the area.
interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config-ospf-ar)#
interface GigabitEternet0/5/0/0
Step 8
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
484
Implementing OSPF
Configuring Generalized TTL Security Mechanism (GTSM) for OSPF
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