
Configuring IP Utilities
8-8 117358-A Rev. A
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 it takes the router to find a particular cached
name
• Increases memory usage
Note that increasing the number of entries in the hash table does not increase the
number of names the router can cache. This is determined by user configuration
and by available memory.
By default, NetBIOS allows 253 names in the hash table.
You can use Site Manager to specify the number of entries you want to allow in
the cache lookup tables.
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 Hash Entry Count parameter.
Click on Help or see the parameter
description on page A-24.
6. Click on OK. Site Manager returns you to the
Configuration Manager window.
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