Avaya Configuring IP Services Instrukcja Użytkownika Pobierz pdf (Strona 330)

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Configuring IP Services

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Parameter: Name Cache Age

Default: 300 seconds

Range: Any value that can rapidly age infrequently referenced names out of the

NetBIOS name cache

Function: Speciﬁes an age (in seconds) when inactive NetBIOS names expire from

the NetBIOS name cache.

Instructions: Choose an aging value that allows infrequently referenced or obsolete

server names to expire from the name cache. The smaller the value, the

less efﬁcient broadcast reduction is, but the more quickly the network

recovers topology changes.

MIB Object ID: 1.3.6.1.4.1.18.3.5.3.11.1.9

Parameter: Hash Entry Count

Default: 253

Range: Any integer value

Function: Speciﬁes the number of entries you want to allow in the cache lookup

tables. Each NetBIOS interface has a local table to store and retrieve the

names of NetBIOS servers active on the network.

Instructions: For networks that actively use up to 2500 NetBIOS server names, use the

default value (253). To determine a hash entry count for larger networks

— Divide the total number of unique NetBIOS server names active in

the network by 10.

— Adjust the quotient to the nearest (higher or lower) prime number. (A

prime number can only be divided by itself or one and still yield a

whole-number quotient.)

— Replace the default value with the new, calculated number.

Increasing the number of hash table entries does not increase the number

of names that a router can cache. With larger networks, increasing the size

of the hash tables may, however, reduce internal cache lookup time,

thereby improving overall performance.

MIB Object ID: 1.3.6.1.4.1.18.3.5.3.11.1.10

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