Avaya Configuring IP Services Bedienungsanleitung Seite 76

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Configuring IP Services
2-48
Parameter: Max Forwarding Table Size
Default: 128 entries
Range: 64-entry minimum; no maximum
Function: Specifies the maximum number of entries allowed in the forwarding table
at one time.
Instructions: Specify a forwarding table size for each interface.
This parameter controls the number of destinations that are cached in the
forwarding table on this receiving interface. When this interface receives
an IP packet, the router looks up the destination in the forwarding table.
Therefore, an interface that receives packets that are destined for a large
number of different destinations may benefit from a larger forwarding
table. The larger the number of entries, the more likely it is that the
destination will already be in the forwarding table and the faster the route
lookups will be for those destinations.
Configuring a forwarding table size that is larger than necessary reduces
the total amount of memory usable by other applications. Configuring a
routing table too small can affect overall router performance. A check of
the number of cache hits and misses will help determine the optimal size
of the forwarding table. For debugging purposes, if you see the
wfIpInterfaceCacheMisses statistic going up at an alarming rate, you
should consider increasing the table size. However, an occasional cache
miss does not warrant an increase in table size.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.2.1.4.1.104
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