Chapter 29
| IP Routing Commands
Open Shortest Path First (OSPFv2)
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Open Shortest Path First (OSPFv2)
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Table 167: Open Shortest Path First Commands
Command Function Mode
General Configuration
router ospf Enables or disables OSPFv2 GC
compatible rfc1583 Calculates summary route costs using RFC 1583 (early
OSPFv2)
RC
default-information
originate
Generates a default external route into an autonomous
system
RC
router-id Sets the router ID for this device RC
timers spf Configures the delay after a topology change and the hold
time between consecutive SPF calculations
RC
clear ip ospf process Clears and restarts the OSPF routing process PE
Route Metrics and Summaries
area default-cost Sets the cost for a default summary route sent into a stub
or NSSA
RC
area range Summarizes routes advertised by an ABR RC
auto-cost reference-
bandwidth
Calculates default metrics for an interface based on
bandwidth
RC
default-metric Sets the default metric for external routes imported from
other protocols
RC
redistribute Redistribute routes from one routing domain to another RC
summary-address Summarizes routes advertised by an ASBR RC
Area Configuration
area nssa Defines a not-so-stubby that can import external routes RC
area stub Defines a stubby area that cannot send or receive LSAs RC
area virtual-link Defines a virtual link from an area border routers to the
backbone
RC
network area Assigns specified interface to an area RC
Interface Configuration
ip ospf authentication Specifies the authentication type for an interface IC
ip ospf authentication-key Assigns a simple password to be used by neighboring
routers
IC
ip ospf cost Specifies the cost of sending a packet on an interface IC
ip ospf dead-interval Sets the interval at which hello packets are not seen before
neighbors declare the router down
IC
ip ospf hello-interval Specifies the interval between sending hello packets IC
ip ospf message-digest-key Enables MD5 authentication and sets the key for an
interface
IC
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