User's Manual

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ip ospf demand-circuit
Configures OSPF on-demand dialing.
60.3.15 Monitoring and Maintaining OSPF
It can display the statistic information of the network, such as: the statistics about the content of IP routing
Table, cache and database and etc… This information can help you to judge the utilization of the network
resource, and solve the network problem. You can understand the availability of the network nodes, discover
the route the network data packet goes through the network.
Use the following commands to display various routing statistics:
Command Purpose
show ip ospf
[process-id] Display the general information about
OSPF routing process.
show ip ospf
process-id [
database
[
router
|
network
|
summary
|
asbr-
summary
|
external
|
database-summary
]][link-state-
id ][
self-originate
]
Display the related information about OSPF
database.
show ip ospf border-routers
Display the internal routing table entry of
ABR and ASBR.
show ip ospf interface
Display the information about OSPF
interface.
show ip ospf neighbor
Display the OSPF neighbor information
according to the interface.
debug ip ospf adj
Supervise the adjacency establishment of
OSPF.
debug ip ospf events
Supervise the interface and neighbour
events of OSPF.
debug ip ospf flood
Supervise the flooding process of OSPF
database.
debug ip ospf lsa-generation
Supervise the LSA generation of OSPF.
debug ip ospf packet
Supervise the message of OSPF.
debug ip ospf retransmission
Supervise the message retransmission
process of OSPF.
debug ip ospf spf
[
intra
|
external
] Supervise the SPF calculation route of
OSPF.
debug ip ospf tree
Supervise the establishment of SPF tree of
OSPF
60.4 Examples of OSPF Configuration
Here are the examples of OSPF configuration:
60.4.1 Examples of OSPF one-to-multi Point Configuration
Beijing uses DLCI201 to communicate with Shanghai, DLCI202 to communicate with Jelly, and
DLCI203 with Platty. Neon uses DLCI101 to communicate with Mollie and DLCI102with Platty.
Platty can communicate with Neon (via DLCI 401) and Mollie (via DLCI 402). Jelly can
communicate with Mollie via DLCI301.