Write data to SNMP-based devices

["Abdalla Ahmad" <abdalla.ahmad@sesame.org.jo>]

Hi

 

Is there anyone here worked with SNMP-based devices? We have some devices in our facility in which its control is SNMP based. We are using the SNMP EPICS driver developed by Diamond Light Source (you can find it here). As stated in the document within the driver package, the input field of the record must be like:

 

@Host   Community    objectID

 

This works fine when reading data out of SNMP devices. The problem is writing data in which we are not sure what is the used format. On the command line I tried this and it worked:

 

snmpset -c private -v 1 10.2.3.61 SC::float-Voltage.0 i 4400

 

I tried to somehow match the OUT field for this command but nothing works and every time I keep receiving this error from the EPICS console:

 

snmp_sess_synch_response: errindex 1, 10.2.3.61 SC::float-Voltage.0 SC::float-Voltage.0

:

snmp_sess_synch_response: errindex 1, 10.2.3.61 SC::float-Voltage.0 SC::float-Voltage.0

Record [SRC03-RF-SSA3-REC0:setVoltage] receive error code [0x00070000]!

SRC03-RF-SSA3-REC0:setVoltage: Response doesn't have a match!

 

Clearly it must be the wrong format of the OUT field (which is not explained in the documents). Any help is appreciated!

 

P.S.: DTYP is set to "SnmpV1". The device has SNMP trap version set to V1.

 

Best Regards,

 

Abdalla Ahmad

Control Engineer

SESAME

Allan, Jordan.

Tel: (+962-5) 3511348 , ext. 265

Fax: (+962-5) 3511423

Mob: (+962-7)88183296

www.sesame.org.jo