Hi Zabbix support,

Seems like the default Linux interface discovery template has a small issue. Some systems might give back their interface speed item as a negative value. Seems like this means it cannot be detected and it throws an error:

I think it's a discussion wether or not the unsupported item is fine like this, but it seems cleaner to use a pre-processing step "Check for not supported values"

Related ticket: ZBXNEXT-6784

Regards,
Nathan