Configuring gated

Configuring the OSPF Protocol

interface 193.2.1.35 nonbroadcast cost 5 { routers {

193.2.1.33eligible ;

193.2.1.46eligible ;

};

priority 15 ; hellointerval 5 ; routerdeadinterval 20 ; retransmitinterval 10 ; pollinterval 20 ;

} ;

Point-to-Point Interfaces On point-to-point networks, an OSPF router dynamically detects its neighbor router by sending OSPF Hello packets. The following statements are defined for a point-to-point interface:

•retransmitinterval is the time interval (in seconds) between the retransmission of link states, database descriptions, and link state request packets. This value must exceed the expected round-trip delay between any two routers in the network. A sample value for a LAN is 5 seconds.

Default: None (you must specify a value)

Range: 0 – 65535

•hellointerval specifies the time interval (in seconds) between transmission of OSPF Hello packets. Smaller intervals ensure that changes in network topology are detected faster. A sample value for an X.25 network is 30 seconds. A sample value for a LAN is 10 seconds.

Default: None (you must specify a value)

Range: 0 – 255

NOTE

The hellointerval value must be the same for all OSPF routers.

 

 

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Chapter 3