Installing and Administering Internet Services

348 Chapter8

Conﬁguring gated

Conﬁguring the OSPF Protocol

Update Packet over this interface. This value must take into account the

transmission and propagation delays for the interface. It must be greater

than 0. A sample value for a LAN is 1 second.

Default: None (you must specify a value)

Range: Integer between 1 - 65535

priority should be conﬁgured only for interfaces to multi-access

networks. This value speciﬁes the priority of the router to become the

Designated Router. When two routers attached to a network both

attempt to become the Designated Router, the one with the highest

router priority value takes precedence.

Default: None (you must specify a value for multi-access networks)

Range: 8-bit unsigned integer between 0 - 255. 0 means that the

router is ineligible to become a designated router on the attached

network.

hellointerval speciﬁes the number of seconds between transmission of

OSPF Hello packets. Smaller intervals ensure that changes in network

topology are detected faster; however, routing trafﬁc can increase. 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: Integer between 0 - 255

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

routerdeadinterval speciﬁes the number of seconds that hello packets

are not received from a router before it is considered “down” or “inactive”

by its neighbors. This value should be some multiple of the

hellointerval value.

Default: None (you must specify a value)

Range: 0 - 65535

NOTE The routerdeadinterval value must be the same for all OSPF routers.