Snmp traffic is not showing on the graphs

Hello,

I am trying to get the graphs regarding the traffic and I guess libre does that through snmp. I get nothing in return. I tried to track down the problem and as I understand the problem is as following:
When I run snmpwalk --------- 1.3.6.1.2.1.2.2.1.10 (which is supposed to get the number of in bytes)
I get only 3 results, while I should get hundreds. Not only that, but the results I am receiving are 0 for two of them, and a constant of 22482 for the last one. Therefore, theoretically the graphs are not supposed to show anything. However, I am sure there is traffic and I do not understand why snmp is not tracking that.

Do you have any suggestion?

Thank you in advance!

Contact the vendor.