You have to implement the "save" and "load" persistent data. If using the
mfd mib2c system, for example, you can answer:
This table has writable columns. Do you want to generate
code for writeable columns, or restrict the table to read-only?
1) generate code with writeable columns [DEFAULT]
2) generate code with read-only columns
Select your choice : *1*
and then:
Since your table is writable, do you want to generate code to save and
restore rows in the Net-SNMP persistent store? You should only use this
option if the agent 'owns' the data, and doesn't get the data from an
external source.
1) do not generate persistent store code [DEFAULT]
2) generate persistent store code
Select your choice : *2*
and then implement the _<table>_container_row_restore and
_<table>_container_save_rows functions in <table>_interface.c.
If you are not using mfd, then during module initialization, use
register_config_handler() to register a function that will parse a
persistent storage file line with the data you wrote, and use
snmp_register_callback(
SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA, ... ) to register a
function that will save your data to the persistent file.
Bill
On Tue, Apr 25, 2017 at 12:40 AM, deepak.sachan deepak.sachan <
deepak.sac...@deal.drdo.in> wrote:
>
> Hi
>
> I have tried communicating b/w agent and client using dynamic module (.so)
> creation for snmp agent.
> snmpget and snmpset working fine . But if restart the agent ,oid value
> doesnt change . it shows the previous value which has been defined in .c
> file.
>
> Any help ?????
>
> Thanks in advance.
>
>
>
> Regards Deepak
>
>
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