Avaya Configuring IP, ARP, RIP, and OSPF Services Manuel d'utilisateur télécharger pdf (Page 199)

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Customizing OSPF Services

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6-29

Setting the Hello Interval

The Hello interval specifies how often the router sends Hello messages on the

interface. By default, OSPF transmits a Hello message every 10 seconds.

Each type of network has an optimum Hello interval. If the interface is connected

to a broadcast network, you should use the default setting -- 10 seconds. Table 6-4

lists the suggested settings for network types supported by OSPF.

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

Using the BCC

To set the Hello 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:

hello-interval

interval>

interval

is the number of seconds between Hello messages.

For example, the following command causes OSPF to transmit a Hello message

every 20 seconds on IP interface 2.2.2.2:

ospf/2.2.2.2#

hello-interval 20

ospf/2.2.2.2#

Table 6-4. Hello Interval Settings

Network Type Suggested Hello Interval (seconds)

Broadcast 10 (default)

Point-to-point 15

NBMA 20

Point-to-multipoint 15

Note:

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

network.

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Avaya Configuring IP, ARP, RIP, and OSPF Services Manuel d'utilisateur Page 199

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