Configuring OSPF Interfaces 13-11
Setting Priorities The interface priority is a value that you assign to an OSPF router to
determine its status as a designated router. A router can function in one
of three ways:
■ Designated router (DR) — The router that has the highest priority
value (unless a designated router already exists on the subnetwork)
■ Backup designated router (BDR) — A router that has a lower
priority value
■ Not a designated router — A router that has a priority value of 0
Default The default priority value is 1.
To set the interface priority:
1 From the top level of the Administration Console, enter:
ip ospf interface priority
2 Enter an IP interface.
3 Enter the priority value.
Setting Area IDs The interface area ID associates the interface that you specify with an
OSPF area. See “Defining Areas” on page 13-2 for more information
about OSPF areas.
CAUTION: Set the area ID to the same value for all routers on the
network segment because they are in the same area.
To associate an interface with an OSPF area:
1 From the top level of the Administration Console, enter:
ip ospf interface areaID
2 Enter an IP interface.
3 Enter the area ID number, in the form of an IP address.
Top-Level Menu
system
ethernet
fddi
atm
bridge
➧ip
ipx
appletalk
snmp
analyzer
script
logout
interface
route
arp
multicast
udphelper
routing
icmpRouterDiscovery
➧ospf
rip
ping
statistics
areas
defaultRouteMetric
➧interface
linkStateData
neighbors
routerID
partition
stubDefaultMetric
virtualLinks
statistics
summary
detail
statistics
mode
➧priority
areaID
cost
delay
hello
retransmit
dead
password
Top-Level Menu
system
ethernet
fddi
atm
bridge
➧ip
ipx
appletalk
snmp
analyzer
script
logout
interface
route
arp
multicast
udphelper
routing
icmpRouterDiscovery
➧ospf
rip
ping
statistics
areas
defaultRouteMetric
➧interface
linkStateData
neighbors
routerID
partition
stubDefaultMetric
virtualLinks
statistics
summary
detail
statistics
mode
priority
➧areaID
cost
delay
hello
retransmit
dead
password
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