Got NoSuchName when I was SNMP requesting a MIB with long string value

Hi, Group,



I am using NET-SNMP version 5.2.1 on my embedded Linux system. My subagent
is attached to snmpd via AgentX. The subagent was working well and we could
get the SNMP table objects and scalar objects correctly until I implemented
a string type scalar MIB variable (len of string > 256 bytes) recently. I
noticed that if len of string <= 256 it worked OK. I got NoSuchName if len
of string > 256.



My subagent didn't report any errors but I noticed that the function
handling the MIB request  (with name handle_xxxxxx ) got called 7~8 times in
that problematic situation while the it only got called once in normal
situation. I suspect that there may be a 256-byte buffer defined in snmpd
which stores the snmp response.



Could one give me some suggestions?



Thank you in advance.





Cheers,

Ling

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