Administrator Guide

1228 OSPF and OSPFv3
Configuring OSPF Interface Settings
Beginning in Privileged EXEC mode, use the following commands to
configure per-interface OSPF settings.
Command Purpose
configure Enter global configuration mode.
interface vlan
vlan-id Enter Interface Configuration mode for the specified
VLAN.
ip ospf area area-id
[secondaries none]
Enables OSPFv2 on the interface and sets the area ID of
an interface. This command supersedes the effects of
network area command.
The
area-id variable is the ID of the area (Range: IP
address or decimal from 0 –4294967295)
Use the secondaries none keyword to prevent the interface
from advertising its secondary addresses into the OSPFv2
domain.
ip ospf priority
number-
value
Set the OSPF priority for the interface. The number-value
variable specifies the priority of an interface (Range: 0 to
255).
The default priority is 1, which is the highest router
priority. A value of 0 indicates that the router is not
eligible to become the designated router on this network.
ip ospf retransmit-
interval
seconds
Set the OSPF retransmit interval for the interface.
The
seconds variable is the number of seconds between
link-state advertisements for adjacencies belonging to this
router interface.
This value is also used when retransmitting database
descriptions and link-state request packets. Valid values
range from 0 to 3600 seconds (1 hour).
ip ospf hello-interval
seconds
Set the OSPF hello interval for the interface. This
parameter must be the same for all routers attached to a
network.
The
seconds variable indicates the number of seconds to
wait before sending Hello packets from the interface.
(Range: 1–65535).