Avaya Configuring IP Multicasting and Multimedia Services Instrukcja Użytkownika Pobierz pdf (Strona 95)

Customizing DVMRP

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Configuring a Forwarding Table

To minimize the amount of time that it spends looking up routes, DVMRP creates

and maintains a cache of frequently used routes -- called a forwarding table -- for

each IP interface.

By default, DVMRP preallocates a forwarding table of 32 entries for each

interface. You can use the BCC or Site Manager to specify the maximum number

of entries (32 to 512) allowed in the forwarding table associated with this

interface.

When configuring a forwarding cache size, you must also keep in mind the TTL

value for entries. If you specify a large cache size, you can specify a larger TTL

value. A smaller cache requires a smaller TTL for cache entries.

By default, DVMRP uses a TTL of 7200 seconds (two hours) for entries in the

forwarding table. You can use Site Manager to specify a TTL from 300 to 86,400

seconds.

If your neighbor is running mrouted, the recommended TTL value is 300 seconds.

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Avaya Configuring IP Multicasting and Multimedia Services Instrukcja Użytkownika Strona 95