6592
6614
* may set these error types :
6593
6615
* SNMPERR_RANGE - type, value, or length not found or out of range
6594
6616
* SNMPERR_VALUE - value is not correct
6595
6618
* SNMPERR_BAD_NAME - name is not found
6597
6620
* returns 0 if success, error if failure.