
Customizing OSPF Services
114065 Rev. A 5-21
Setting the Dead Interval
The dead interval is the number of seconds that a router waits to receive a Hello
packet from a neighbor before considering the neighbor to be down. The Dead
Interval value should be some multiple of the Hello Interval value.
Each type of network has an optimum dead interval. If the interface is connected
to a broadcast network, we suggest you use the default setting -- 40 seconds. We
suggest the following settings for other network types supported by OSPF:
You can use Site Manager to specify a dead interval.
Network Type Suggested Dead Interval
Broadcast 40 seconds (default)
Point-to-point 60 seconds
NBMA 80 seconds
Point-to-multipoint 60 seconds
Note: This value must be the same for all routers attached to the same
network.
Site Manager: Dead Interval parameter: page A-81
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