Avaya Configuring IP, ARP, RARP, RIP, and OSPF Services Instrukcja Użytkownika Strona 279

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Site Manager Parameters
308627-14.20 Rev 00
A-17
Parameter: Forward Cache Size
Path: Configuration Manager > Protocols > IP > Interfaces
Default: 128
Options: An integer greater than or equal to 64
Function: Specifies the maximum number of entries allowed in the forwarding table at
one time.
Instructions: Specify a forwarding table size for the 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 for a large number of 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 forwarding table size that is too small can affect
overall router performance. Check the number of cache hits and misses to
determine the optimal size of the forwarding table. For debugging purposes, if
you see the wfIpInterfaceCacheMisses statistic going up at a rapid rate,
consider increasing the table size. However, an occasional cache miss does not
warrant an increase in the table size.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.2.1.4.1.104
Parameter: Unnumbered Associated Alternate
Path: Configuration Manager > Protocols > IP > Interfaces
Default: Disabled
Options: Enabled
|
Disabled
Function: Automatically assigns an alternate associated address to an unnumbered
interface in the event that the primary associated address goes down. IP uses
the first available interface.
Instructions: Use the alternate unnumbered address option to ensure that the unnumbered
interface has a usable associated address on the router.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.2.1.4.1.111
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