AI2524 Router Card User’s Manual
Page 8-2 August 1997
2524UM
zConfigure Route Calculation Timers
zConfigure OSPF over On-Demand Circuits
Enable OSPF
To enable OSPF, you must create an OSPF routing process, speci fy the
range of IP addresses to be associated with the routing process, and as-
sign area IDs to be associated with that range of IP addresses.
1. Enable OSPF routing. This places you in the router configuration
mode.
router ospf

process-id

2. Define an interface on which OSPF runs and define the area ID for
that interface.
network address wildcard-mask area

area-id

Configure OSPF Interface Parameters
OSPF implementation allows you to alter certain interface-specific
OSPF parameters. You may need to change these parameters f or con-
sistency. If you do configure any of these parameters, be sure the con-
figurations for all routers on your network have compatible values.
In interface configuration mode, specify any of these interface param-
eters as needed for your network:
1. Explicitly specify the cost of sending a packet on an OSPF inter-
face.
ip ospf cost

cost

2. Specify the number of seconds between link state advertisement
retransmissions for adjacencies belonging to an OSPF interface.
ip ospf retransmit-interval
seconds
3. Set the estimated number of seco nds it t akes to transmit a link stat
update packet on an OSPF inter face.
ip ospf transmit-delay
seconds
4. Set priority to help determine the OSPF designated router for
network.
ip ospf priority
number
5. Specify the length of time, in seconds, between the hello packets
that the Cisco IOS software sends on an OSPF interface.
ip ospf hello-interval
seconds