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Configuring IP Unicast Routing
Configuring OSPF
DETAILED STEPS
Command
1.
configure terminal
2.
interface loopback 0
3.
ip address address mask
4.
end
5.
show ip interface
6.
copy running-config startup-config
Use the no interface loopback 0 global configuration command to disable the loopback interface.
EXAMPLE
Switch(config)# interface loopback 0
Switch(config-if)# ip address 10.108.1.1 255.255.255.0
Monitoring OSPF
You can display specific statistics such as the contents of IP routing tables, caches, and databases.
Following are some of the privileged EXEC commands for displaying OSPF statistics. For more show ip ospf database
privileged EXEC command options and for explanations of fields in the resulting display, see
Command
Reference.
Command
show ip ospf [process-id]
show ip ospf [process-id] database [router] [link-state-id]
show ip ospf [process-id] database [router] [self-originate]
show ip ospf [process-id] database [router] [adv-router [ip-address]]
show ip ospf [process-id] database [network] [link-state-id]
show ip ospf [process-id] database [summary] [link-state-id]
show ip ospf [process-id] database [asbr-summary] [link-state-id]
show ip ospf [process-id] database [external] [link-state-id]
show ip ospf [process-id area-id] database [database-summary]
show ip ospf border-routes
show ip ospf interface [interface-name]
show ip ospf neighbor [interface-name] [neighbor-id] detail
show ip ospf virtual-links
Purpose
Enter global configuration mode.
Create a loopback interface, and enter interface
configuration mode.
Assign an IP address to this interface.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Display general information about OSPF routing
processes.
Display lists of information related to the OSPF
database.
Display the internal OSPF routing ABR and ASBR
table entries.
Display OSPF-related interface information.
Display OSPF interface neighbor information.
Display OSPF-related virtual links information.
837
Cisco IOS IP Routing: OSPF
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