Chapter 30
Configuring IP Unicast Routing
OSPF typically requires coordination among many internal routers, area border routers (ABRs)
connected to multiple areas, and autonomous system boundary routers (ASBRs). The minimum
configuration would use all default parameter values, no authentication, and interfaces assigned to areas.
If you customize your environment, you must ensure coordinated configuration of all routers.
This section briefly describes how to configure OSPF. It includes this information:
•
•
•
•
•
•
•
•
Note
To enable OSPF, the switch must be running the EMI.
Default OSPF Configuration
Table 30-6
Table 30-6 Default OSPF Configuration
Feature
Interface parameters
Area
Auto cost
Default-information originate
78-16156-01
Default OSPF Configuration, page 30-29
Configuring Basic OSPF Parameters, page 30-30
Configuring OSPF Interfaces, page 30-31
Configuring OSPF Area Parameters, page 30-32
Configuring Other OSPF Parameters, page 30-33
Changing LSA Group Pacing, page 30-35
Configuring a Loopback Interface, page 30-35
Monitoring OSPF, page 30-36
shows the default OSPF configuration.
Default Setting
Cost: No default cost predefined.
Retransmit interval: 5 seconds.
Transmit delay: 1 second.
Priority: 1.
Hello interval: 10 seconds.
Dead interval: 4 times the hello interval.
No authentication.
No password specified.
MD5 authentication disabled.
Authentication type: 0 (no authentication).
Default cost: 1.
Range: Disabled.
Stub: No stub area defined.
NSSA: No NSSA area defined.
100 Mbps.
Disabled. When enabled, the default metric setting is 10, and the
external route type default is Type 2.
Catalyst 3560 Switch Software Configuration Guide
Configuring OSPF
30-29