I read the blog post before posting my topic. The blog post doesn’t address my particular problem as my device cannot deliver custom names via SNMP. It always delivers either index-based names (“001”, “002” etc.) or Linux interface names (“eth0”, “eth1” etc.).
I am already using an approach similar to the one described in the blog post for other devices that do allow me to specify custom interface names in the device itself (e.g. Dell N series switches).