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Switching from octetstring to octetstringascii SNMP type

Solved869 views24th October 2023SNMP
5
Andrea Ivkovic [SLC] [DevOps Advocate]232 24th October 2023 0 Comments

Hi Dojo Community,

After the firmware upgrade, it was requested to change the SNMP type of certain read parameters from 'octetstring' to 'octetstringascii'.

Could 'octetstringascii' be used for the previous firmware version as well, instead of 'octetstring'? Is the only difference between the two that 'octetstringascii' can display special characters outside of the 0x00 - 0x7F range?

Andrea Ivkovic [SLC] [DevOps Advocate] Selected answer as best 24th October 2023

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Thomas Warnez [SLC] [DevOps Advocate]629 Posted 24th October 2023 1 Comment

Hi Andrea,

Using the octetstringascii instead of octetstring could have an impact. It depends on the values the old firmware contained and showed.

You can find more about these types in the NOTE sections of this page Type element | DataMiner Docs

But this is a short overview:

In the octetstring it will check if the value is outside the ASCII range and then the value will be represented differently on the moment it fall out of the ASCII range.

In the octetstringascii you know it will always be ASCII.

One note is that the read and write always need to be in the same type to prevent wrong octet values been created and wrong data is been send and read out of the device.

So I would recommend to double check if the old firmware only contained ASCII representable values.

Andrea Ivkovic [SLC] [DevOps Advocate] Selected answer as best 24th October 2023
Andrea Ivkovic [SLC] [DevOps Advocate] commented 24th October 2023

Hi Thomas,
Thank you for the answer.

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