
Configuring IP Utilities
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By default, inactive NetBIOS names expire from the NetBIOS name cache after
300 seconds.
You can use Site Manager to specify any time value that can rapidly age
infrequently referenced names out of the NetBIOS name cache.
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.
Customizing a Cache Search
The mechanism that NetBIOS uses to search for a name in the cache is based on a
fast string hash/search mechanism developed for AppleTalk Zone Name
processing. This mechanism uses a hash table that NetBIOS builds and maintains
on the router.
Increasing the number of entries in the hash table:
• Decreases the number of names the router must compare before finding a
specific cached name
• Decreases the amount of time the router takes to find a particular cached name
• Increases memory usage
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose
Protocols
.
The Protocols menu opens.
2. Choose
IP
. The IP menu opens.
3. Choose
NetBIOS
. The NetBIOS menu opens.
4. Choose
Global
. The Edit NetBIOS/IP Global Parameters
window opens.
5. Set the
Name Cache Age
parameter.
Click on
Help
or see the parameter
description on page A-22
.
6. Click on
OK
. Site Manager returns you to the
Configuration Manager window.
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