Avaya Configuring IP, ARP, RIP, and OSPF Services Instrukcja Użytkownika Pobierz pdf (Strona 207)

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Customizing OSPF Services

308627-14.00 Rev 00

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Setting the Dead Interval

The dead interval is the number of seconds that OSPF 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, you should use the default setting -- 40 seconds. Table 6-5

lists the suggested settings for network types supported by OSPF.

You can use the BCC or Site Manager to specify a dead interval.

Using the BCC

To set a dead interval, navigate to an OSPF interface prompt (for example,

box;

eth 2/2; ip/2.2.2.2/255.255.0.0; ospf

) and enter:

dead-interval

interval>

interval

is the dead interval expressed in seconds.

For example, the following command causes OSPF to wait 60 seconds on IP

interface 2.2.2.2 for a Hello message before declaring the neighbor down:

ospf/2.2.2.2#

dead-interval 60

ospf/2.2.2.2#

Table 6-5. Dead Interval Settings

Network Type Suggested Dead Interval (seconds)

Broadcast 40 (default)

Point-to-point 60

NBMA 80

Point-to-multipoint 60

Note:

This value must be the same for all routers attached to the same

network.

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