Did you have to change anything? I C+P'd verbatim, adding the mibs to /usr/share/snmp/mibs, and telegraf won't start, gives me
/usr/share/snmp/mibs$ ls -la
total 344
drwxr-xr-x 2 root root 4096 Feb 20 13:15 .
drwxr-xr-x 5 root root 4096 Oct 2 2020 ..
-rw-r--r-- 1 root root 87119 Jun 5...