Quick Reference Guide

432 | OSPF Commands
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If the value of limit is -1, then there is no limit. The range for limit is -1 to 2147483647.
Default
-1
Router OSPF Config
ip ospf
This command enables OSPF on a router interface.
Syntax
[no] ip ospf
The no version of this command disables OSPF on a router interface.
Default
disabled
Mode
Interface Config (including Interface Loopback Config mode) or Interface VLAN; Interface Range,
which is indicated by the (conf-if-range-interface)# prompt, such as (conf-if-range-vlan 10-20)#.
Command
History
Command
History
ip ospf areaid
This command sets the OSPF area to which the specified router interface belongs.
Syntax
ip ospf areaid areaid
The value for areaid is an IP address, formatted as a 4-digit dotted-decimal number that
uniquely identifies the area to which the interface connects. Assigning an area ID that does
not exist on an interface causes the area to be created with default values.
Mode
Interface Config or Interface VLAN; Interface Range, which is indicated by the
(conf-if-range-interface)# prompt, such as (conf-if-range-vlan 10-20)#.
Command
History
Version 2.3 Added Interface Range and Interface VLAN modes.
Related
Commands
interface range Defines an interface range and accesses the Interface Range mode
Version 2.5 Modified: Added Interface Loopback Config mode.
Version 2.3 Modified: Added Interface VLAN as a mode.
Version 2.3 Added Interface Range and Interface VLAN modes.
Related
Commands
interface range Defines an interface range and accesses the Interface Range mode
interface vlan Creates a VLAN or selects an existing one and enters the Interface VLAN mode.