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-----Original Message----- On 26/09/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]>
wrote: > It was one simple example. The index may be IPADDRESS also > For this particular table there can be large gap Ok - so a different approach is needed. >> How is the table populated initially, how is it updated > > The table does not have any row initially .The user need to create
the row . How? Via an SNMP SET command? Or via some other control mechanism? The table may be created by another agent
(for example http agent) If the table is purely controlled via SNMP, then there's no problem
whatsoever. The agent is the only thing that creates rows, so it knows exactly what rows exist, and can keep a track of the indexes. Determining the next index is simply a matter of searching this internal list. The Net-SNMP agent has several helpers that can take care of this automatically. If rows can be created "behind the back" of the agent, then
things are slightly harder. The most straighforward approach would be for the agent to hold a cache of the table (or at least of the row indexes), Does it mean if the table is created by
http agent, SNMP agent should know about the index which is created by http agent?
How it is possible? and use that. Occasionally, when the cache is regarded as "too old" to be
useful, it can be refreshed from the underlying system. The mib2c tool can generate code for either of these approaches. Dave Regards, Somenath |
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