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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-06
Chapter 35 Configuring IP Unicast Routing
Configuring OSPF
Beginning in privileged EXEC mode, follow these steps to configure OSPF network type for an
interface:
Use the no form of the ip ospf network command to return to the default network type for the media.
Command Purpose
Step 1 configure terminal Enter global configuration mode.
Step 2 interface interface-id Enter interface configuration mode, and specify the Layer 3 interface
to configure.
Step 3 no shutdown Enable the interface if necessary. By default, UNIs and ENIs are
disabled and NNIs are enabled.
Step 4 ip ospf network {broadcast | non-broadcast
| {point-to-multipoint [non-broadcast] |
point-to-point}}
Configure the OSFP network type for the specified interface. Select
one of these network types:
• broadcast—Specify an OSPF broadcast multi-access network.
• non-broadcast—Specify an OSPF NBMA network.
• point-to-multipoint—Specify an OSPF point-to-multipoint
network. If you do not enter another keyword, the interface is
point-to-multipoint for broadcast media.
• point-to-multipoint non-broadcast—Specify an OSPF
nonbroadcast point-to-multipoint network.
• point-to-point—Specify an OSPF point-to-point network.
Step 5 exit Return to global configuration mode.
Step 6 router ospf process-id (Optional for point-to-multipoint; required for point-to-multipoint
nonbroadcast) Configure an OSPF routing process and enter router
configuration mode.
Step 7 neighbor ip-address cost number (Optional for point-to-multipoint; required for point-to-multipoint
nonbroadcast). Specify a configured OSPF neighbor and assign a
cost to the neighbor.
• ip-address—Enter the interface IP address of the OSPF
neighbor.
• cost number—Specify a cost for the neighbor as an integer from
1 to 65535.
Note On point-to-multipoint broadcast networks, specifying a
neighbor is optional, but if you do specify a neighbor, you
must specify a cost for that neighbor.
On point-to-multipoint nonbroadcast neighbors, you must
specify a neighbor, but assigning a cost to the neighbor is
optional. If not specified, neighbors assume the cost of the
interface, based on the ip ospf cost interface configuration
command.
Step 8 end Return to privileged EXEC mode.
Step 9 show ip ospf interface [interface-id]Display OSPF-related interface information.
Step 10 copy running-config startup-config (Optional) Save your entries in the configuration file.